From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BBAC63C8716; Wed, 19 Aug 2026 16:52:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787158351; cv=none; b=evLrLYPTFPlKmlt79eR3zdQc46UofgDvpOJnD5JJNv/HHOP15AgwRBr65LVbd2D6sei5vAaS+sSZLAX9aszl6XcxIc/sOBTZeXTFSMZLzvjMzFRaa38Q9rSBq9JzGjiHpbki5tcPNyvUzBMvQbt1JSPBUV52cSRtSLikyaI5xpQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787158351; c=relaxed/simple; bh=MctnqLXqJxsoQqCvi6k89xGe8HK6shnOBgwMwAkuI7Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=YgGLPOqAQQtfX5RHmu5KmaTCeFQNcYS48v2nDLZdlZsAnJ095bQ9HaPkdczsV1SAAPbbkT9+5SizGnXPXO1LBzkkTfv7uzDgll4zh1bMaaQ0kr+xCykxks6b38qmFlnISUB43FU8oFnOke8FdvXnr1THfbo93irjCiwASpgasFY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=sCzRove+; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="sCzRove+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 77F201F00A3D; Wed, 19 Aug 2026 16:52:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1787158330; bh=VCv2gSBJtlzXNQS7Bki/RWx4hW/IQiRH3OvngXqOs+I=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=sCzRove+pIcRNVr0XefYwX3M6id2xAAd791jUJLapqBNpTM0LzydlrTkW/HK7KyW5 VruY62LowRbqGq+DO86Zwd3BhFYsbPsdfQt0tcqqimiVV4k9x2ZJ/OT7rmhyUMGLZt lSRtrYM3E2g6ixsB4welsC1kNMGN+X1lbyhm4gZ8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org, torvalds@linux-foundation.org, stable@vger.kernel.org Cc: lwn@lwn.net, jslaby@suse.cz, Greg Kroah-Hartman Subject: Re: Linux 5.15.216 Date: Wed, 19 Aug 2026 18:51:48 +0200 Message-ID: <2026081948-unlovable-vacancy-e9d7@gregkh> X-Mailer: git-send-email 2.55.0 In-Reply-To: <2026081948-scouts-dedicate-e7af@gregkh> References: <2026081948-scouts-dedicate-e7af@gregkh> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit diff --git a/Makefile b/Makefile index 00d5186cbfbe..bed62696d40b 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0 VERSION = 5 PATCHLEVEL = 15 -SUBLEVEL = 215 +SUBLEVEL = 216 EXTRAVERSION = NAME = Trick or Treat diff --git a/arch/arm/mach-npcm/platsmp.c b/arch/arm/mach-npcm/platsmp.c index 21633c70fe7f..fe63edc9886d 100644 --- a/arch/arm/mach-npcm/platsmp.c +++ b/arch/arm/mach-npcm/platsmp.c @@ -35,6 +35,7 @@ static int npcm7xx_smp_boot_secondary(unsigned int cpu, goto out; } gcr_base = of_iomap(gcr_np, 0); + of_node_put(gcr_np); if (!gcr_base) { pr_err("could not iomap gcr"); ret = -ENOMEM; @@ -63,6 +64,7 @@ static void __init npcm7xx_smp_prepare_cpus(unsigned int max_cpus) return; } scu_base = of_iomap(scu_np, 0); + of_node_put(scu_np); if (!scu_base) { pr_err("could not iomap scu"); return; diff --git a/arch/powerpc/boot/simpleboot.c b/arch/powerpc/boot/simpleboot.c index c80691d83880..27591df41e9e 100644 --- a/arch/powerpc/boot/simpleboot.c +++ b/arch/powerpc/boot/simpleboot.c @@ -68,7 +68,7 @@ void platform_init(unsigned long r3, unsigned long r4, unsigned long r5, /* finally, setup the timebase */ node = fdt_node_offset_by_prop_value(_dtb_start, -1, "device_type", "cpu", sizeof("cpu")); - if (!node) + if (node < 0) fatal("Cannot find cpu node\n"); timebase = fdt_getprop(_dtb_start, node, "timebase-frequency", &size); if (timebase && (size == 4)) diff --git a/arch/powerpc/boot/treeboot-akebono.c b/arch/powerpc/boot/treeboot-akebono.c index e3cc2599869c..1b529037480f 100644 --- a/arch/powerpc/boot/treeboot-akebono.c +++ b/arch/powerpc/boot/treeboot-akebono.c @@ -146,7 +146,7 @@ void platform_init(char *userdata) node = fdt_node_offset_by_prop_value(_dtb_start, -1, "device_type", "cpu", sizeof("cpu")); - if (!node) + if (node < 0) fatal("Cannot find cpu node\n"); timebase = fdt_getprop(_dtb_start, node, "timebase-frequency", &size); if (timebase && (size == 4)) diff --git a/arch/powerpc/boot/treeboot-currituck.c b/arch/powerpc/boot/treeboot-currituck.c index d53e8a592f81..5b5363b74f9f 100644 --- a/arch/powerpc/boot/treeboot-currituck.c +++ b/arch/powerpc/boot/treeboot-currituck.c @@ -102,7 +102,7 @@ void platform_init(void) node = fdt_node_offset_by_prop_value(_dtb_start, -1, "device_type", "cpu", sizeof("cpu")); - if (!node) + if (node < 0) fatal("Cannot find cpu node\n"); timebase = fdt_getprop(_dtb_start, node, "timebase-frequency", &size); if (timebase && (size == 4)) diff --git a/arch/powerpc/include/asm/cputime.h b/arch/powerpc/include/asm/cputime.h index 504f7fe6711a..2e5cc3abd92d 100644 --- a/arch/powerpc/include/asm/cputime.h +++ b/arch/powerpc/include/asm/cputime.h @@ -20,23 +20,8 @@ #include #include -typedef u64 __nocast cputime_t; -typedef u64 __nocast cputime64_t; - -#define cmpxchg_cputime(ptr, old, new) cmpxchg(ptr, old, new) - #ifdef __KERNEL__ -/* - * Convert cputime <-> microseconds - */ -extern u64 __cputime_usec_factor; - -static inline unsigned long cputime_to_usecs(const cputime_t ct) -{ - return mulhdu((__force u64) ct, __cputime_usec_factor); -} - -#define cputime_to_nsecs(cputime) tb_to_ns((__force u64)cputime) +#define cputime_to_nsecs(cputime) tb_to_ns(cputime) /* * PPC64 uses PACA which is task independent for storing accounting data while @@ -46,23 +31,10 @@ static inline unsigned long cputime_to_usecs(const cputime_t ct) #ifdef CONFIG_PPC64 #define get_accounting(tsk) (&get_paca()->accounting) #define raw_get_accounting(tsk) (&local_paca->accounting) -static inline void arch_vtime_task_switch(struct task_struct *tsk) { } #else #define get_accounting(tsk) (&task_thread_info(tsk)->accounting) #define raw_get_accounting(tsk) get_accounting(tsk) -/* - * Called from the context switch with interrupts disabled, to charge all - * accumulated times to the current process, and to prepare accounting on - * the next process. - */ -static inline void arch_vtime_task_switch(struct task_struct *prev) -{ - struct cpu_accounting_data *acct = get_accounting(current); - struct cpu_accounting_data *acct0 = get_accounting(prev); - - acct->starttime = acct0->starttime; -} #endif /* diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h index 8c2c3dd4ddba..d7212a334f72 100644 --- a/arch/powerpc/include/asm/time.h +++ b/arch/powerpc/include/asm/time.h @@ -22,6 +22,7 @@ extern unsigned long tb_ticks_per_jiffy; extern unsigned long tb_ticks_per_usec; extern unsigned long tb_ticks_per_sec; extern struct clock_event_device decrementer_clockevent; +extern u64 decrementer_max; extern void generic_calibrate_decr(void); diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c index 4406d7a89558..6dc87b4e2819 100644 --- a/arch/powerpc/kernel/time.c +++ b/arch/powerpc/kernel/time.c @@ -54,8 +54,9 @@ #include #include #include -#include +#include +#include #include #include #include @@ -122,7 +123,7 @@ unsigned long tb_ticks_per_jiffy; unsigned long tb_ticks_per_usec = 100; /* sane default */ EXPORT_SYMBOL(tb_ticks_per_usec); unsigned long tb_ticks_per_sec; -EXPORT_SYMBOL(tb_ticks_per_sec); /* for cputime_t conversions */ +EXPORT_SYMBOL(tb_ticks_per_sec); /* for cputime conversions */ DEFINE_SPINLOCK(rtc_lock); EXPORT_SYMBOL_GPL(rtc_lock); @@ -142,25 +143,6 @@ EXPORT_SYMBOL_GPL(ppc_tb_freq); bool tb_invalid; #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE -/* - * Factor for converting from cputime_t (timebase ticks) to - * microseconds. This is stored as 0.64 fixed-point binary fraction. - */ -u64 __cputime_usec_factor; -EXPORT_SYMBOL(__cputime_usec_factor); - -#ifdef CONFIG_PPC_SPLPAR -void (*dtl_consumer)(struct dtl_entry *, u64); -#endif - -static void calc_cputime_factors(void) -{ - struct div_result res; - - div128_by_32(1000000, 0, tb_ticks_per_sec, &res); - __cputime_usec_factor = res.result_low; -} - /* * Read the SPURR on systems that have it, otherwise the PURR, * or if that doesn't exist return the timebase value passed in. @@ -178,6 +160,8 @@ static inline unsigned long read_spurr(unsigned long tb) #include +void (*dtl_consumer)(struct dtl_entry *, u64); + /* * Scan the dispatch trace log and count up the stolen time. * Should be called with interrupts disabled. @@ -446,9 +430,69 @@ void vtime_flush(struct task_struct *tsk) acct->softirq_time = 0; } -#else /* ! CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ -#define calc_cputime_factors() +/* + * Called from the context switch with interrupts disabled, to charge all + * accumulated times to the current process, and to prepare accounting on + * the next process. + */ +void vtime_task_switch(struct task_struct *prev) +{ + if (is_idle_task(prev)) + vtime_account_idle(prev); + else + vtime_account_kernel(prev); + + vtime_flush(prev); + + if (!IS_ENABLED(CONFIG_PPC64)) { + struct cpu_accounting_data *acct = get_accounting(current); + struct cpu_accounting_data *acct0 = get_accounting(prev); + + acct->starttime = acct0->starttime; + } +} + +/** + * vtime_reset - Fast forward vtime entry clocks + * + * Called from dynticks idle IRQ entry to fast-forward the clocks to current time + * so that the IRQ time is still accounted by vtime while nohz cputime is paused. + */ +void vtime_reset(void) +{ + struct cpu_accounting_data *acct = get_accounting(current); + + acct->starttime = mftb(); +#ifdef CONFIG_ARCH_HAS_SCALED_CPUTIME + acct->startspurr = read_spurr(acct->starttime); #endif +} + +#ifdef CONFIG_NO_HZ_COMMON +/** + * vtime_dyntick_start - Inform vtime about entry to idle-dynticks + * + * Called when idle enters in dyntick mode. The idle cputime that elapsed so far + * is accumulated and the tick subsystem takes over the idle cputime accounting. + */ +void vtime_dyntick_start(void) +{ + vtime_account_idle(current); +} + +/** + * vtime_dyntick_stop - Inform vtime about exit from idle-dynticks + * + * Called when idle exits from dyntick mode. The vtime entry clocks are + * fast-forward to current time so that idle accounting restarts elapsing from + * now. + */ +void vtime_dyntick_stop(void) +{ + vtime_reset(); +} +#endif /* CONFIG_NO_HZ_COMMON */ +#endif /* CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ void __no_kcsan __delay(unsigned long loops) { @@ -929,6 +973,7 @@ static void __init set_decrementer_max(void) static void __init init_decrementer_clockevent(void) { register_decrementer_clockevent(smp_processor_id()); + vtime_reset(); } void secondary_cpu_time_init(void) @@ -944,6 +989,7 @@ void secondary_cpu_time_init(void) /* FIME: Should make unrelatred change to move snapshot_timebase * call here ! */ register_decrementer_clockevent(smp_processor_id()); + vtime_reset(); } /* This function is only called on the boot processor */ @@ -963,7 +1009,6 @@ void __init time_init(void) tb_ticks_per_jiffy = ppc_tb_freq / HZ; tb_ticks_per_sec = ppc_tb_freq; tb_ticks_per_usec = ppc_tb_freq / 1000000; - calc_cputime_factors(); /* * Compute scale factor for sched_clock. diff --git a/arch/powerpc/platforms/chrp/time.c b/arch/powerpc/platforms/chrp/time.c index acde7bbe0716..b94dfd5090d8 100644 --- a/arch/powerpc/platforms/chrp/time.c +++ b/arch/powerpc/platforms/chrp/time.c @@ -30,8 +30,6 @@ #include -extern spinlock_t rtc_lock; - #define NVRAM_AS0 0x74 #define NVRAM_AS1 0x75 #define NVRAM_DATA 0x77 diff --git a/arch/powerpc/platforms/ps3/mm.c b/arch/powerpc/platforms/ps3/mm.c index 9c44f335c0b9..6d5e0ad2be66 100644 --- a/arch/powerpc/platforms/ps3/mm.c +++ b/arch/powerpc/platforms/ps3/mm.c @@ -616,6 +616,7 @@ static int dma_ioc0_map_pages(struct ps3_dma_region *r, unsigned long phys_addr, fail_map: for (iopage--; 0 <= iopage; iopage--) { + offset = (1 << r->page_size) * iopage; lv1_put_iopte(0, c->bus_addr + offset, c->lpar_addr + offset, diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c index 41fc93ce4d37..c67bf7bebfad 100644 --- a/arch/um/drivers/vector_kern.c +++ b/arch/um/drivers/vector_kern.c @@ -1007,6 +1007,9 @@ static int vector_mmsg_rx(struct vector_private *vp) */ dev_kfree_skb_irq(skb); vp->estats.rx_encaps_errors++; + (*skbuff_vector) = NULL; + mmsg_vector++; + skbuff_vector++; continue; } if (header_check > 0) { diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index f54fa1579dcd..4e7cde0e1567 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -35,6 +35,7 @@ targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \ KBUILD_CFLAGS := -m$(BITS) -O2 $(CLANG_FLAGS) KBUILD_CFLAGS += -std=gnu89 KBUILD_CFLAGS += -fno-strict-aliasing -fPIE +KBUILD_CFLAGS += -fno-jump-tables KBUILD_CFLAGS += -Wundef KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING cflags-$(CONFIG_X86_32) := -march=i386 diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 3e95e39d4fb4..84eeed9a9615 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -6062,7 +6062,9 @@ static struct shrinker mmu_shrinker = { static void mmu_destroy_caches(void) { kmem_cache_destroy(pte_list_desc_cache); + pte_list_desc_cache = NULL; kmem_cache_destroy(mmu_page_header_cache); + mmu_page_header_cache = NULL; } static bool get_nx_auto_mode(void) diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index 70b55267ea71..ad20d87c1692 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -279,6 +279,7 @@ static void vmx_switch_vmcs(struct kvm_vcpu *vcpu, struct loaded_vmcs *vmcs) static void free_nested(struct kvm_vcpu *vcpu) { struct vcpu_vmx *vmx = to_vmx(vcpu); + struct vmcs *shadow_vmcs; if (WARN_ON_ONCE(vmx->loaded_vmcs != &vmx->vmcs01)) vmx_switch_vmcs(vcpu, &vmx->vmcs01); @@ -295,9 +296,15 @@ static void free_nested(struct kvm_vcpu *vcpu) vmx->nested.current_vmptr = -1ull; if (enable_shadow_vmcs) { vmx_disable_shadow_vmcs(vmx); - vmcs_clear(vmx->vmcs01.shadow_vmcs); - free_vmcs(vmx->vmcs01.shadow_vmcs); + + /* + * Keep the pointer visible until after VMCLEAR, so migration + * can clear an active shadow VMCS on the old CPU. + */ + shadow_vmcs = vmx->vmcs01.shadow_vmcs; + vmcs_clear(shadow_vmcs); vmx->vmcs01.shadow_vmcs = NULL; + free_vmcs(shadow_vmcs); } kfree(vmx->nested.cached_vmcs12); vmx->nested.cached_vmcs12 = NULL; diff --git a/arch/x86/kvm/vmx/vmx_ops.h b/arch/x86/kvm/vmx/vmx_ops.h index 9e9ef47e988c..6d342e4f5920 100644 --- a/arch/x86/kvm/vmx/vmx_ops.h +++ b/arch/x86/kvm/vmx/vmx_ops.h @@ -11,14 +11,26 @@ #include "x86.h" asmlinkage void vmread_error(unsigned long field, bool fault); -__attribute__((regparm(0))) void vmread_error_trampoline(unsigned long field, - bool fault); void vmwrite_error(unsigned long field, unsigned long value); void vmclear_error(struct vmcs *vmcs, u64 phys_addr); void vmptrld_error(struct vmcs *vmcs, u64 phys_addr); void invvpid_error(unsigned long ext, u16 vpid, gva_t gva); void invept_error(unsigned long ext, u64 eptp, gpa_t gpa); +/* + * The VMREAD error trampoline _always_ uses the stack to pass parameters, even + * for 64-bit targets. Preserving all registers allows the VMREAD inline asm + * blob to avoid clobbering GPRs, which in turn allows the compiler to better + * optimize sequences of VMREADs. + * + * Declare the trampoline as an opaque label as it's not safe to call from C + * code; there is no way to tell the compiler to pass params on the stack for + * 64-bit targets. + * + * void vmread_error_trampoline(unsigned long field, bool fault); + */ +extern unsigned long vmread_error_trampoline; + static __always_inline void vmcs_check16(unsigned long field) { BUILD_BUG_ON_MSG(__builtin_constant_p(field) && ((field) & 0x6001) == 0x2000, diff --git a/crypto/rsa-pkcs1pad.c b/crypto/rsa-pkcs1pad.c index e2f4ccbd71dd..d10076bb6ec2 100644 --- a/crypto/rsa-pkcs1pad.c +++ b/crypto/rsa-pkcs1pad.c @@ -535,7 +535,7 @@ static int pkcs1pad_verify(struct akcipher_request *req) int err; if (WARN_ON(req->dst) || - WARN_ON(!req->dst_len) || + !req->dst_len || !ctx->key_size || req->src_len != ctx->key_size) return -EINVAL; diff --git a/drivers/ata/pata_sl82c105.c b/drivers/ata/pata_sl82c105.c index 8487470e2e01..c32f3b490bb3 100644 --- a/drivers/ata/pata_sl82c105.c +++ b/drivers/ata/pata_sl82c105.c @@ -265,6 +265,7 @@ static struct ata_port_operations sl82c105_port_ops = { static int sl82c105_bridge_revision(struct pci_dev *pdev) { struct pci_dev *bridge; + u8 revision; /* * The bridge should be part of the same device, but function 0. @@ -286,8 +287,9 @@ static int sl82c105_bridge_revision(struct pci_dev *pdev) /* * We need to find function 0's revision, not function 1 */ + revision = bridge->revision; pci_dev_put(bridge); - return bridge->revision; + return revision; } static void sl82c105_fixup(struct pci_dev *pdev) diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c index 29e2b0dfba30..1692c29227a0 100644 --- a/drivers/ata/sata_dwc_460ex.c +++ b/drivers/ata/sata_dwc_460ex.c @@ -443,8 +443,7 @@ static void clear_serror(struct ata_port *ap) static void clear_interrupt_bit(struct sata_dwc_device *hsdev, u32 bit) { - sata_dwc_writel(&hsdev->sata_dwc_regs->intpr, - sata_dwc_readl(&hsdev->sata_dwc_regs->intpr)); + sata_dwc_writel(&hsdev->sata_dwc_regs->intpr, bit); } static u32 qcmd_tag_to_mask(u8 tag) @@ -512,7 +511,7 @@ static irqreturn_t sata_dwc_isr(int irq, void *dev_instance) struct ata_queued_cmd *qc; unsigned long flags; u8 status, tag; - int handled, num_processed, port = 0; + int handled, port = 0; uint intpr, sactive, sactive2, tag_mask; struct sata_dwc_device_port *hsdevp; hsdev->sactive_issued = 0; @@ -656,16 +655,9 @@ static irqreturn_t sata_dwc_isr(int irq, void *dev_instance) status = ap->ops->sff_check_status(ap); dev_dbg(ap->dev, "%s ATA status register=0x%x\n", __func__, status); - tag = 0; - num_processed = 0; while (tag_mask) { - num_processed++; - while (!(tag_mask & 0x00000001)) { - tag++; - tag_mask <<= 1; - } - - tag_mask &= (~0x00000001); + tag = __ffs(tag_mask); + tag_mask &= ~(1U << tag); qc = ata_qc_from_tag(ap, tag); if (unlikely(!qc)) { dev_err(ap->dev, "failed to get qc"); @@ -1256,9 +1248,6 @@ static int sata_dwc_probe(struct platform_device *ofdev) /* Save dev for later use in dev_xxx() routines */ hsdev->dev = &ofdev->dev; - /* Enable SATA Interrupts */ - sata_dwc_enable_interrupts(hsdev); - /* Get SATA interrupt number */ irq = irq_of_parse_and_map(np, 0); if (irq == NO_IRQ) { @@ -1291,6 +1280,8 @@ static int sata_dwc_probe(struct platform_device *ofdev) if (err) dev_err(&ofdev->dev, "failed to activate host"); + /* Enable SATA Interrupts */ + sata_dwc_enable_interrupts(hsdev); return 0; error_out: diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 8c906643b4ed..f627e3af041b 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -1958,9 +1958,14 @@ static int rbd_object_map_update_finish(struct rbd_obj_request *obj_req, bool has_current_state; void *p; - if (osd_req->r_result) + if (osd_req->r_result < 0) return osd_req->r_result; + /* + * Writes aren't allowed to return a data payload. + */ + WARN_ON_ONCE(osd_req->r_result > 0); + /* * Nothing to do for a snapshot object map. */ diff --git a/drivers/bluetooth/btqca.c b/drivers/bluetooth/btqca.c index 25e98ce4a5af..142d61abb137 100644 --- a/drivers/bluetooth/btqca.c +++ b/drivers/bluetooth/btqca.c @@ -352,7 +352,7 @@ static int qca_tlv_check_data(struct hci_dev *hdev, idx = 0; data = tlv->data; - while (idx < length - sizeof(struct tlv_type_nvm)) { + while (idx + sizeof(struct tlv_type_nvm) <= length) { tlv_nvm = (struct tlv_type_nvm *)(data + idx); tag_id = le16_to_cpu(tlv_nvm->tag_id); diff --git a/drivers/cdrom/cdrom.c b/drivers/cdrom/cdrom.c index 9ccf6abfff8d..d06cfa08f995 100644 --- a/drivers/cdrom/cdrom.c +++ b/drivers/cdrom/cdrom.c @@ -3165,6 +3165,7 @@ static noinline int mmc_ioctl_cdrom_volume(struct cdrom_device_info *cdi, /* set volume */ cgc->buffer = buffer + offset - 8; + cgc->buflen -= offset - 8; memset(cgc->buffer, 0, 8); return cdrom_mode_select(cdi, cgc); } diff --git a/drivers/comedi/drivers/comedi_parport.c b/drivers/comedi/drivers/comedi_parport.c index 5338b5eea440..8f91ca4d3510 100644 --- a/drivers/comedi/drivers/comedi_parport.c +++ b/drivers/comedi/drivers/comedi_parport.c @@ -212,6 +212,13 @@ static irqreturn_t parport_interrupt(int irq, void *d) unsigned int ctrl; unsigned short val = 0; + /* + * Check device is fully attached. Device interrupts should have + * been disabled, but do this in case of bad hardware. + */ + if (!dev->attached) + return IRQ_NONE; + ctrl = inb(dev->iobase + PARPORT_CTRL_REG); if (!(ctrl & PARPORT_CTRL_IRQ_ENA)) return IRQ_NONE; @@ -232,6 +239,9 @@ static int parport_attach(struct comedi_device *dev, if (ret) return ret; + outb(0, dev->iobase + PARPORT_DATA_REG); + outb(0, dev->iobase + PARPORT_CTRL_REG); + if (it->options[1]) { ret = request_irq(it->options[1], parport_interrupt, 0, dev->board_name, dev); @@ -287,9 +297,6 @@ static int parport_attach(struct comedi_device *dev, s->cancel = parport_intr_cancel; } - outb(0, dev->iobase + PARPORT_DATA_REG); - outb(0, dev->iobase + PARPORT_CTRL_REG); - return 0; } diff --git a/drivers/counter/microchip-tcb-capture.c b/drivers/counter/microchip-tcb-capture.c index 2625823152ea..1195fbcd639e 100644 --- a/drivers/counter/microchip-tcb-capture.c +++ b/drivers/counter/microchip-tcb-capture.c @@ -310,7 +310,7 @@ static int mchp_tc_probe(struct platform_device *pdev) char clk_name[7]; struct regmap *regmap; struct clk *clk[3]; - int channel; + u32 channel; int ret, i; priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); @@ -345,7 +345,7 @@ static int mchp_tc_probe(struct platform_device *pdev) priv->channel[i] = channel; - snprintf(clk_name, sizeof(clk_name), "t%d_clk", channel); + snprintf(clk_name, sizeof(clk_name), "t%u_clk", channel); clk[i] = of_clk_get_by_name(np->parent, clk_name); if (IS_ERR(clk[i])) { diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c index 94fe0e15623e..b4b97264d2c7 100644 --- a/drivers/cpufreq/powernow-k8.c +++ b/drivers/cpufreq/powernow-k8.c @@ -1083,6 +1083,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol) err_out_exit_acpi: powernow_k8_cpu_exit_acpi(data); + kfree(data->powernow_table); err_out: kfree(data); diff --git a/drivers/dma/sh/rz-dmac.c b/drivers/dma/sh/rz-dmac.c index c22743e41640..cec94db38c55 100644 --- a/drivers/dma/sh/rz-dmac.c +++ b/drivers/dma/sh/rz-dmac.c @@ -773,27 +773,6 @@ static int rz_dmac_chan_probe(struct rz_dmac *dmac, channel->index = index; channel->mid_rid = -EINVAL; - /* Request the channel interrupt. */ - sprintf(pdev_irqname, "ch%u", index); - channel->irq = platform_get_irq_byname(pdev, pdev_irqname); - if (channel->irq < 0) - return channel->irq; - - irqname = devm_kasprintf(dmac->dev, GFP_KERNEL, "%s:%u", - dev_name(dmac->dev), index); - if (!irqname) - return -ENOMEM; - - ret = devm_request_threaded_irq(dmac->dev, channel->irq, - rz_dmac_irq_handler, - rz_dmac_irq_handler_thread, 0, - irqname, channel); - if (ret) { - dev_err(dmac->dev, "failed to request IRQ %u (%d)\n", - channel->irq, ret); - return ret; - } - /* Set io base address for each channel */ if (index < 8) { channel->ch_base = dmac->base + CHANNEL_0_7_OFFSET + @@ -806,9 +785,9 @@ static int rz_dmac_chan_probe(struct rz_dmac *dmac, } /* Allocate descriptors */ - lmdesc = dma_alloc_coherent(&pdev->dev, - sizeof(struct rz_lmdesc) * DMAC_NR_LMDESC, - &channel->lmdesc.base_dma, GFP_KERNEL); + lmdesc = dmam_alloc_coherent(&pdev->dev, + sizeof(struct rz_lmdesc) * DMAC_NR_LMDESC, + &channel->lmdesc.base_dma, GFP_KERNEL); if (!lmdesc) { dev_err(&pdev->dev, "Can't allocate memory (lmdesc)\n"); return -ENOMEM; @@ -824,7 +803,26 @@ static int rz_dmac_chan_probe(struct rz_dmac *dmac, INIT_LIST_HEAD(&channel->ld_free); INIT_LIST_HEAD(&channel->ld_active); - return 0; + /* Request the channel interrupt. */ + sprintf(pdev_irqname, "ch%u", index); + channel->irq = platform_get_irq_byname(pdev, pdev_irqname); + if (channel->irq < 0) + return channel->irq; + + irqname = devm_kasprintf(dmac->dev, GFP_KERNEL, "%s:%u", + dev_name(dmac->dev), index); + if (!irqname) + return -ENOMEM; + + ret = devm_request_threaded_irq(dmac->dev, channel->irq, + rz_dmac_irq_handler, + rz_dmac_irq_handler_thread, 0, + irqname, channel); + if (ret) + dev_err(dmac->dev, "failed to request IRQ %u (%d)\n", + channel->irq, ret); + + return ret; } static int rz_dmac_parse_of(struct device *dev, struct rz_dmac *dmac) @@ -851,7 +849,6 @@ static int rz_dmac_probe(struct platform_device *pdev) const char *irqname = "error"; struct dma_device *engine; struct rz_dmac *dmac; - int channel_num; unsigned int i; int ret; int irq; @@ -881,26 +878,28 @@ static int rz_dmac_probe(struct platform_device *pdev) if (IS_ERR(dmac->ext_base)) return PTR_ERR(dmac->ext_base); + /* Initialize the channels. */ + INIT_LIST_HEAD(&dmac->engine.channels); + + for (i = 0; i < dmac->n_channels; i++) { + ret = rz_dmac_chan_probe(dmac, &dmac->channels[i], i); + if (ret < 0) + goto err; + } + /* Register interrupt handler for error */ irq = platform_get_irq_byname(pdev, irqname); - if (irq < 0) - return irq; + if (irq < 0) { + ret = irq; + goto err; + } ret = devm_request_irq(&pdev->dev, irq, rz_dmac_irq_handler, 0, irqname, NULL); if (ret) { dev_err(&pdev->dev, "failed to request IRQ %u (%d)\n", irq, ret); - return ret; - } - - /* Initialize the channels. */ - INIT_LIST_HEAD(&dmac->engine.channels); - - for (i = 0; i < dmac->n_channels; i++) { - ret = rz_dmac_chan_probe(dmac, &dmac->channels[i], i); - if (ret < 0) - goto err; + goto err; } /* Register the DMAC as a DMA provider for DT. */ @@ -940,32 +939,13 @@ static int rz_dmac_probe(struct platform_device *pdev) dma_register_err: of_dma_controller_free(pdev->dev.of_node); err: - channel_num = i ? i - 1 : 0; - for (i = 0; i < channel_num; i++) { - struct rz_dmac_chan *channel = &dmac->channels[i]; - - dma_free_coherent(&pdev->dev, - sizeof(struct rz_lmdesc) * DMAC_NR_LMDESC, - channel->lmdesc.base, - channel->lmdesc.base_dma); - } - return ret; } static int rz_dmac_remove(struct platform_device *pdev) { struct rz_dmac *dmac = platform_get_drvdata(pdev); - unsigned int i; - - for (i = 0; i < dmac->n_channels; i++) { - struct rz_dmac_chan *channel = &dmac->channels[i]; - dma_free_coherent(&pdev->dev, - sizeof(struct rz_lmdesc) * DMAC_NR_LMDESC, - channel->lmdesc.base, - channel->lmdesc.base_dma); - } of_dma_controller_free(pdev->dev.of_node); dma_async_device_unregister(&dmac->engine); diff --git a/drivers/dma/sun6i-dma.c b/drivers/dma/sun6i-dma.c index 5cadd4d2b824..fa216ef645d5 100644 --- a/drivers/dma/sun6i-dma.c +++ b/drivers/dma/sun6i-dma.c @@ -895,16 +895,13 @@ static int sun6i_dma_terminate_all(struct dma_chan *chan) spin_lock_irqsave(&vchan->vc.lock, flags); - if (vchan->cyclic) { - vchan->cyclic = false; - if (pchan && pchan->desc) { - struct virt_dma_desc *vd = &pchan->desc->vd; - struct virt_dma_chan *vc = &vchan->vc; + if (pchan && pchan->desc && pchan->desc != pchan->done) { + struct virt_dma_desc *vd = &pchan->desc->vd; - list_add_tail(&vd->node, &vc->desc_completed); - } + vchan_terminate_vdesc(vd); } + vchan->cyclic = false; vchan_get_all_descriptors(&vchan->vc, &head); if (pchan) { diff --git a/drivers/firewire/net.c b/drivers/firewire/net.c index beba0a56bb9a..b9bbfd308dc5 100644 --- a/drivers/firewire/net.c +++ b/drivers/firewire/net.c @@ -306,31 +306,34 @@ static struct fwnet_fragment_info *fwnet_frag_new( if (fi->offset + fi->len == offset) { /* The new fragment can be tacked on to the end */ /* Did the new fragment plug a hole? */ - fi2 = list_entry(fi->fi_link.next, - struct fwnet_fragment_info, fi_link); - if (fi->offset + fi->len == fi2->offset) { - /* glue fragments together */ - fi->len += len + fi2->len; - list_del(&fi2->fi_link); - kfree(fi2); - } else { - fi->len += len; + if (!list_is_last(&fi->fi_link, &pd->fi_list)) { + fi2 = list_next_entry(fi, fi_link); + if (offset + len == fi2->offset) { + /* glue fragments together */ + fi->len += len + fi2->len; + list_del(&fi2->fi_link); + kfree(fi2); + + return fi; + } } + fi->len += len; return fi; } if (offset + len == fi->offset) { /* The new fragment can be tacked on to the beginning */ /* Did the new fragment plug a hole? */ - fi2 = list_entry(fi->fi_link.prev, - struct fwnet_fragment_info, fi_link); - if (fi2->offset + fi2->len == fi->offset) { - /* glue fragments together */ - fi2->len += fi->len + len; - list_del(&fi->fi_link); - kfree(fi); - - return fi2; + if (!list_is_first(&fi->fi_link, &pd->fi_list)) { + fi2 = list_prev_entry(fi, fi_link); + if (fi2->offset + fi2->len == offset) { + /* glue fragments together */ + fi2->len += fi->len + len; + list_del(&fi->fi_link); + kfree(fi); + + return fi2; + } } fi->offset = offset; fi->len += len; diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c index 34351f8c4d6f..2f8c95d9362f 100644 --- a/drivers/firmware/arm_ffa/driver.c +++ b/drivers/firmware/arm_ffa/driver.c @@ -558,7 +558,7 @@ static int ffa_partition_info_get(const char *uuid_str, uuid_t uuid; struct ffa_partition_info *pbuf; - if (uuid_parse(uuid_str, &uuid)) { + if (!uuid_str || uuid_parse(uuid_str, &uuid)) { pr_err("invalid uuid (%s)\n", uuid_str); return -ENODEV; } diff --git a/drivers/firmware/arm_scmi/notify.c b/drivers/firmware/arm_scmi/notify.c index 4782b115e6ec..1bc715fe3968 100644 --- a/drivers/firmware/arm_scmi/notify.c +++ b/drivers/firmware/arm_scmi/notify.c @@ -595,9 +595,9 @@ int scmi_notify(const struct scmi_handle *handle, u8 proto_id, u8 evt_id, return -EINVAL; } if (kfifo_avail(&r_evt->proto->equeue.kfifo) < sizeof(eh) + len) { - dev_warn(handle->dev, - "queue full, dropping proto_id:%d evt_id:%d ts:%lld\n", - proto_id, evt_id, ktime_to_ns(ts)); + dev_warn_ratelimited(handle->dev, + "queue full, dropping proto_id:%d evt_id:%d ts:%lld\n", + proto_id, evt_id, ktime_to_ns(ts)); return -ENOMEM; } diff --git a/drivers/firmware/stratix10-svc.c b/drivers/firmware/stratix10-svc.c index 993ef210169c..c5ddd20fe4b7 100644 --- a/drivers/firmware/stratix10-svc.c +++ b/drivers/firmware/stratix10-svc.c @@ -911,13 +911,15 @@ void *stratix10_svc_allocate_memory(struct stratix10_svc_chan *chan, struct gen_pool *genpool = chan->ctrl->genpool; size_t s = roundup(size, 1 << genpool->min_alloc_order); - pmem = devm_kzalloc(chan->ctrl->dev, sizeof(*pmem), GFP_KERNEL); + pmem = kzalloc(sizeof(*pmem), GFP_KERNEL); if (!pmem) return ERR_PTR(-ENOMEM); va = gen_pool_alloc(genpool, s); - if (!va) + if (!va) { + kfree(pmem); return ERR_PTR(-ENOMEM); + } memset((void *)va, 0, s); pa = gen_pool_virt_to_phys(genpool, va); @@ -950,10 +952,9 @@ void stratix10_svc_free_memory(struct stratix10_svc_chan *chan, void *kaddr) (unsigned long)kaddr, pmem->size); pmem->vaddr = NULL; list_del(&pmem->node); + kfree(pmem); return; } - - list_del(&svc_data_mem); } EXPORT_SYMBOL_GPL(stratix10_svc_free_memory); diff --git a/drivers/gpio/gpio-pch.c b/drivers/gpio/gpio-pch.c index a552df298a97..af4b3b7f3033 100644 --- a/drivers/gpio/gpio-pch.c +++ b/drivers/gpio/gpio-pch.c @@ -92,7 +92,7 @@ struct pch_gpio { struct pch_gpio_reg_data pch_gpio_reg; int irq_base; enum pch_type_t ioh; - spinlock_t spinlock; + raw_spinlock_t spinlock; }; static void pch_gpio_set(struct gpio_chip *gpio, unsigned int nr, int val) @@ -101,7 +101,7 @@ static void pch_gpio_set(struct gpio_chip *gpio, unsigned int nr, int val) struct pch_gpio *chip = gpiochip_get_data(gpio); unsigned long flags; - spin_lock_irqsave(&chip->spinlock, flags); + raw_spin_lock_irqsave(&chip->spinlock, flags); reg_val = ioread32(&chip->reg->po); if (val) reg_val |= BIT(nr); @@ -109,7 +109,7 @@ static void pch_gpio_set(struct gpio_chip *gpio, unsigned int nr, int val) reg_val &= ~BIT(nr); iowrite32(reg_val, &chip->reg->po); - spin_unlock_irqrestore(&chip->spinlock, flags); + raw_spin_unlock_irqrestore(&chip->spinlock, flags); } static int pch_gpio_get(struct gpio_chip *gpio, unsigned int nr) @@ -127,7 +127,7 @@ static int pch_gpio_direction_output(struct gpio_chip *gpio, unsigned int nr, u32 reg_val; unsigned long flags; - spin_lock_irqsave(&chip->spinlock, flags); + raw_spin_lock_irqsave(&chip->spinlock, flags); reg_val = ioread32(&chip->reg->po); if (val) @@ -141,7 +141,7 @@ static int pch_gpio_direction_output(struct gpio_chip *gpio, unsigned int nr, pm |= BIT(nr); iowrite32(pm, &chip->reg->pm); - spin_unlock_irqrestore(&chip->spinlock, flags); + raw_spin_unlock_irqrestore(&chip->spinlock, flags); return 0; } @@ -152,12 +152,12 @@ static int pch_gpio_direction_input(struct gpio_chip *gpio, unsigned int nr) u32 pm; unsigned long flags; - spin_lock_irqsave(&chip->spinlock, flags); + raw_spin_lock_irqsave(&chip->spinlock, flags); pm = ioread32(&chip->reg->pm); pm &= BIT(gpio_pins[chip->ioh]) - 1; pm &= ~BIT(nr); iowrite32(pm, &chip->reg->pm); - spin_unlock_irqrestore(&chip->spinlock, flags); + raw_spin_unlock_irqrestore(&chip->spinlock, flags); return 0; } @@ -259,7 +259,7 @@ static int pch_irq_type(struct irq_data *d, unsigned int type) return 0; } - spin_lock_irqsave(&chip->spinlock, flags); + raw_spin_lock_irqsave(&chip->spinlock, flags); /* Set interrupt mode */ im = ioread32(im_reg) & ~(PCH_IM_MASK << (im_pos * 4)); @@ -271,7 +271,7 @@ static int pch_irq_type(struct irq_data *d, unsigned int type) else if (type & IRQ_TYPE_EDGE_BOTH) irq_set_handler_locked(d, handle_edge_irq); - spin_unlock_irqrestore(&chip->spinlock, flags); + raw_spin_unlock_irqrestore(&chip->spinlock, flags); return 0; } @@ -378,7 +378,7 @@ static int pch_gpio_probe(struct pci_dev *pdev, chip->reg = chip->base; pci_set_drvdata(pdev, chip); - spin_lock_init(&chip->spinlock); + raw_spin_lock_init(&chip->spinlock); pch_gpio_setup(chip); ret = devm_gpiochip_add_data(&pdev->dev, &chip->gpio, chip); @@ -415,9 +415,9 @@ static int __maybe_unused pch_gpio_suspend(struct device *dev) struct pch_gpio *chip = dev_get_drvdata(dev); unsigned long flags; - spin_lock_irqsave(&chip->spinlock, flags); + raw_spin_lock_irqsave(&chip->spinlock, flags); pch_gpio_save_reg_conf(chip); - spin_unlock_irqrestore(&chip->spinlock, flags); + raw_spin_unlock_irqrestore(&chip->spinlock, flags); return 0; } @@ -427,11 +427,11 @@ static int __maybe_unused pch_gpio_resume(struct device *dev) struct pch_gpio *chip = dev_get_drvdata(dev); unsigned long flags; - spin_lock_irqsave(&chip->spinlock, flags); + raw_spin_lock_irqsave(&chip->spinlock, flags); iowrite32(0x01, &chip->reg->reset); iowrite32(0x00, &chip->reg->reset); pch_gpio_restore_reg_conf(chip); - spin_unlock_irqrestore(&chip->spinlock, flags); + raw_spin_unlock_irqrestore(&chip->spinlock, flags); return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c index cc9c9f8b23b2..314d527c8eaa 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_acp.c @@ -466,7 +466,9 @@ static int acp_hw_fini(void *handle) mfd_remove_devices(adev->acp.parent); kfree(adev->acp.acp_res); + pm_genpd_remove(&adev->acp.acp_genpd->gpd); kfree(adev->acp.acp_genpd); + adev->acp.acp_genpd = NULL; kfree(adev->acp.acp_cell); return 0; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c index 1f916adf74dd..7d29d7c87b2c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c @@ -363,6 +363,45 @@ static bool amdgpu_read_disabled_bios(struct amdgpu_device *adev) } #ifdef CONFIG_ACPI +/** + * amdgpu_acpi_vfct_match() - Check if a VFCT entry matches the device + * @adev: AMDGPU device + * @vhdr: VFCT image header to check + * + * VFCT entries contain the PCI bus number as recorded during BIOS POST. + * On systems where the kernel renumbers PCI buses (e.g. pci=realloc or + * resource conflicts), the runtime bus number may differ from the POST + * value. Match by device identity (vendor + device + function) and use + * the bus number as a preference: exact bus match is preferred, but when + * the bus numbers disagree we accept the entry if the device identity + * matches. + * + * Returns: 0 on match, -ENODEV on no match + */ +static int amdgpu_acpi_vfct_match(struct amdgpu_device *adev, + VFCT_IMAGE_HEADER *vhdr) +{ + /* Vendor and device IDs must always match */ + if (vhdr->VendorID != adev->pdev->vendor || + vhdr->DeviceID != adev->pdev->device) + return -ENODEV; + + if (vhdr->PCIDevice != PCI_SLOT(adev->pdev->devfn) || + vhdr->PCIFunction != PCI_FUNC(adev->pdev->devfn)) + return -ENODEV; + + /* Exact bus number match - preferred */ + if (vhdr->PCIBus == adev->pdev->bus->number) + return 0; + + /* Bus mismatch but device identity matches (PCI renumbering case) */ + dev_notice(adev->dev, + "VFCT bus number mismatch: table %u != runtime %u, matching by device identity (vendor 0x%04x device 0x%04x)\n", + vhdr->PCIBus, adev->pdev->bus->number, + adev->pdev->vendor, adev->pdev->device); + return 0; +} + static bool amdgpu_acpi_vfct_bios(struct amdgpu_device *adev) { struct acpi_table_header *hdr; @@ -398,11 +437,7 @@ static bool amdgpu_acpi_vfct_bios(struct amdgpu_device *adev) } if (vhdr->ImageLength && - vhdr->PCIBus == adev->pdev->bus->number && - vhdr->PCIDevice == PCI_SLOT(adev->pdev->devfn) && - vhdr->PCIFunction == PCI_FUNC(adev->pdev->devfn) && - vhdr->VendorID == adev->pdev->vendor && - vhdr->DeviceID == adev->pdev->device) { + !amdgpu_acpi_vfct_match(adev, vhdr)) { adev->bios = kmemdup(&vbios->VbiosContent, vhdr->ImageLength, GFP_KERNEL); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index adcf3adc5ca5..58292a296875 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -2393,6 +2393,19 @@ static int amdgpu_pmops_runtime_suspend(struct device *dev) return 0; } +static void amdgpu_restore_umd_profile_pstate_after_runpm(struct amdgpu_device *adev) +{ + enum amd_dpm_forced_level level; + uint32_t profile_mode_mask = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD | + AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK | + AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK | + AMD_DPM_FORCED_LEVEL_PROFILE_PEAK; + + level = amdgpu_dpm_get_performance_level(adev); + if (level & profile_mode_mask) + amdgpu_asic_update_umd_stable_pstate(adev, true); +} + static int amdgpu_pmops_runtime_resume(struct device *dev) { struct pci_dev *pdev = to_pci_dev(dev); @@ -2436,6 +2449,8 @@ static int amdgpu_pmops_runtime_resume(struct device *dev) if (amdgpu_device_supports_px(drm_dev)) drm_dev->switch_power_state = DRM_SWITCH_POWER_ON; + + amdgpu_restore_umd_profile_pstate_after_runpm(adev); adev->in_runpm = false; return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c index 5d95594a1753..079c0d27a2ac 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c @@ -266,10 +266,12 @@ int amdgpu_bo_create_reserved(struct amdgpu_device *adev, goto error_free; } - r = amdgpu_bo_pin(*bo_ptr, domain); - if (r) { - dev_err(adev->dev, "(%d) kernel bo pin failed\n", r); - goto error_unreserve; + if (free) { + r = amdgpu_bo_pin(*bo_ptr, domain); + if (r) { + dev_err(adev->dev, "(%d) kernel bo pin failed\n", r); + goto error_unreserve; + } } r = amdgpu_ttm_alloc_gart(&(*bo_ptr)->tbo); @@ -292,7 +294,8 @@ int amdgpu_bo_create_reserved(struct amdgpu_device *adev, return 0; error_unpin: - amdgpu_bo_unpin(*bo_ptr); + if (free) + amdgpu_bo_unpin(*bo_ptr); error_unreserve: amdgpu_bo_unreserve(*bo_ptr); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 7b3293b37144..a0d18d3417ae 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1768,6 +1768,18 @@ int amdgpu_ttm_init(struct amdgpu_device *adev) else gtt_size = (uint64_t)amdgpu_gtt_size << 20; + /* Cap GTT so that it does not exceed total physical RAM. */ + if (adev->flags & AMD_IS_APU) { + u64 phys_ram = (u64)totalram_pages() << PAGE_SHIFT; + + if (gtt_size > phys_ram) { + gtt_size = phys_ram; + dev_info(adev->dev, + "Capping GTT to %uM to not exceed available system memory\n", + (unsigned int)(gtt_size / (1024 * 1024))); + } + } + /* Initialize GTT memory pool */ r = amdgpu_gtt_mgr_init(adev, gtt_size); if (r) { diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c index d451c359606a..1935ba1eb659 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c @@ -578,6 +578,14 @@ static int amdgpu_uvd_cs_msg_decode(struct amdgpu_device *adev, uint32_t *msg, unsigned image_size, tmp, min_dpb_size, num_dpb_buffer; unsigned min_ctx_size = ~0; + /* Reject invalid dimensions to prevent division by zero */ + if (width < 16 || height < 16) { + dev_WARN_ONCE(adev->dev, 1, + "Invalid UVD decoding dimensions (%dx%d)!\n", + width, height); + return -EINVAL; + } + image_size = width * height; image_size += image_size / 2; image_size = ALIGN(image_size, 1024); diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index d8926d510b3c..be6174872038 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -3854,7 +3854,7 @@ static void gfx_v10_0_wait_reg_mem(struct amdgpu_ring *ring, int eng_sel, WAIT_REG_MEM_ENGINE(eng_sel))); if (mem_space) - BUG_ON(addr0 & 0x3); /* Dword align */ + WARN_ON(addr0 & 0x3); /* Dword align */ amdgpu_ring_write(ring, addr0); amdgpu_ring_write(ring, addr1); amdgpu_ring_write(ring, ref); @@ -8629,7 +8629,7 @@ static void gfx_v10_0_ring_emit_ib_gfx(struct amdgpu_ring *ring, } amdgpu_ring_write(ring, header); - BUG_ON(ib->gpu_addr & 0x3); /* Dword align */ + WARN_ON(ib->gpu_addr & 0x3); /* Dword align */ amdgpu_ring_write(ring, #ifdef __BIG_ENDIAN (2 << 0) | @@ -8664,7 +8664,7 @@ static void gfx_v10_0_ring_emit_ib_compute(struct amdgpu_ring *ring, } amdgpu_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2)); - BUG_ON(ib->gpu_addr & 0x3); /* Dword align */ + WARN_ON(ib->gpu_addr & 0x3); /* Dword align */ amdgpu_ring_write(ring, #ifdef __BIG_ENDIAN (2 << 0) | @@ -8697,9 +8697,9 @@ static void gfx_v10_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, * aligned if only send 32bit data low (discard data high) */ if (write64bit) - BUG_ON(addr & 0x7); + WARN_ON(addr & 0x7); else - BUG_ON(addr & 0x3); + WARN_ON(addr & 0x3); amdgpu_ring_write(ring, lower_32_bits(addr)); amdgpu_ring_write(ring, upper_32_bits(addr)); amdgpu_ring_write(ring, lower_32_bits(seq)); @@ -8735,9 +8735,6 @@ static void gfx_v10_0_ring_emit_fence_kiq(struct amdgpu_ring *ring, u64 addr, { struct amdgpu_device *adev = ring->adev; - /* we only allocate 32bit for each seq wb address */ - BUG_ON(flags & AMDGPU_FENCE_FLAG_64BIT); - /* write fence seq to the "addr" */ amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3)); amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) | diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index 4f54b0cf5133..ec72fb44932f 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -6301,9 +6301,6 @@ static void gfx_v8_0_ring_emit_fence_compute(struct amdgpu_ring *ring, static void gfx_v8_0_ring_emit_fence_kiq(struct amdgpu_ring *ring, u64 addr, u64 seq, unsigned int flags) { - /* we only allocate 32bit for each seq wb address */ - BUG_ON(flags & AMDGPU_FENCE_FLAG_64BIT); - /* write fence seq to the "addr" */ amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3)); amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(0) | diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c index ae69a8653bf0..4582d2d0fdb7 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c @@ -1052,7 +1052,7 @@ static void gfx_v9_0_wait_reg_mem(struct amdgpu_ring *ring, int eng_sel, WAIT_REG_MEM_ENGINE(eng_sel))); if (mem_space) - BUG_ON(addr0 & 0x3); /* Dword align */ + WARN_ON(addr0 & 0x3); /* Dword align */ amdgpu_ring_write(ring, addr0); amdgpu_ring_write(ring, addr1); amdgpu_ring_write(ring, ref); @@ -5395,7 +5395,7 @@ static void gfx_v9_0_ring_emit_ib_gfx(struct amdgpu_ring *ring, } amdgpu_ring_write(ring, header); - BUG_ON(ib->gpu_addr & 0x3); /* Dword align */ + WARN_ON(ib->gpu_addr & 0x3); /* Dword align */ amdgpu_ring_write(ring, #ifdef __BIG_ENDIAN (2 << 0) | @@ -5430,7 +5430,7 @@ static void gfx_v9_0_ring_emit_ib_compute(struct amdgpu_ring *ring, } amdgpu_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2)); - BUG_ON(ib->gpu_addr & 0x3); /* Dword align */ + WARN_ON(ib->gpu_addr & 0x3); /* Dword align */ amdgpu_ring_write(ring, #ifdef __BIG_ENDIAN (2 << 0) | @@ -5464,9 +5464,9 @@ static void gfx_v9_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, * aligned if only send 32bit data low (discard data high) */ if (write64bit) - BUG_ON(addr & 0x7); + WARN_ON(addr & 0x7); else - BUG_ON(addr & 0x3); + WARN_ON(addr & 0x3); amdgpu_ring_write(ring, lower_32_bits(addr)); amdgpu_ring_write(ring, upper_32_bits(addr)); amdgpu_ring_write(ring, lower_32_bits(seq)); diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c index 0f75864365d6..da4a28570960 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c @@ -552,7 +552,7 @@ static void sdma_v5_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 se amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) | SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */ /* zero in first two bits */ - BUG_ON(addr & 0x3); + WARN_ON(addr & 0x3); amdgpu_ring_write(ring, lower_32_bits(addr)); amdgpu_ring_write(ring, upper_32_bits(addr)); amdgpu_ring_write(ring, lower_32_bits(seq)); @@ -563,7 +563,7 @@ static void sdma_v5_0_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 se amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) | SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* zero in first two bits */ - BUG_ON(addr & 0x3); + WARN_ON(addr & 0x3); amdgpu_ring_write(ring, lower_32_bits(addr)); amdgpu_ring_write(ring, upper_32_bits(addr)); amdgpu_ring_write(ring, upper_32_bits(seq)); diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c index 1a39103ac10f..8a62e84a649f 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_2.c @@ -449,7 +449,7 @@ static void sdma_v5_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 se amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) | SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* Ucached(UC) */ /* zero in first two bits */ - BUG_ON(addr & 0x3); + WARN_ON(addr & 0x3); amdgpu_ring_write(ring, lower_32_bits(addr)); amdgpu_ring_write(ring, upper_32_bits(addr)); amdgpu_ring_write(ring, lower_32_bits(seq)); @@ -460,7 +460,7 @@ static void sdma_v5_2_ring_emit_fence(struct amdgpu_ring *ring, u64 addr, u64 se amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_FENCE) | SDMA_PKT_FENCE_HEADER_MTYPE(0x3)); /* zero in first two bits */ - BUG_ON(addr & 0x3); + WARN_ON(addr & 0x3); amdgpu_ring_write(ring, lower_32_bits(addr)); amdgpu_ring_write(ring, upper_32_bits(addr)); amdgpu_ring_write(ring, upper_32_bits(seq)); diff --git a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c index c09e86523e29..4e075b01d48b 100644 --- a/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c +++ b/drivers/gpu/drm/amd/display/modules/info_packet/info_packet.c @@ -415,8 +415,6 @@ void mod_build_vsc_infopacket(const struct dc_stream_state *stream, * * @stream: contains data we may need to construct VSIF (i.e. timing_3d_format, etc.) * @info_packet: output structure where to store VSIF - * @ALLMEnabled: indicates whether ALLM HF-VSIF should be generated - * @ALLMValue: ALLM bit value to advertise in HF-VSIF */ void mod_build_hf_vsif_infopacket(const struct dc_stream_state *stream, struct dc_info_packet *info_packet) diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hwmgr.c index 997435a50f21..2e2bc4f28ee5 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hwmgr.c +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hwmgr.c @@ -106,11 +106,8 @@ int hwmgr_early_init(struct pp_hwmgr *hwmgr) hwmgr->od_enabled = false; switch (hwmgr->chip_id) { case CHIP_BONAIRE: - /* R9 M380 in iMac 2015: SMU hangs when enabling MCLK DPM - * R7 260X cards with old MC ucode: MCLK DPM is unstable - */ - if (adev->pdev->subsystem_vendor == 0x106B || - adev->pdev->device == 0x6658) { + /* R9 M380 in iMac 2015: SMU hangs when enabling MCLK DPM */ + if (adev->pdev->subsystem_vendor == 0x106B) { dev_info(adev->dev, "disabling MCLK DPM on quirky ASIC"); adev->pm.pp_feature &= ~PP_MCLK_DPM_MASK; hwmgr->feature_mask &= ~PP_MCLK_DPM_MASK; diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c index 0a7c4548b77f..882e7ef1fd26 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_context.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c @@ -565,8 +565,8 @@ static int set_proto_ctx_engines(struct drm_i915_file_private *fpriv, struct intel_engine_cs *engine; if (copy_from_user(&ci, &user->engines[n], sizeof(ci))) { - kfree(set.engines); - return -EFAULT; + err = -EFAULT; + goto err; } memset(&set.engines[n], 0, sizeof(set.engines[n])); @@ -582,8 +582,8 @@ static int set_proto_ctx_engines(struct drm_i915_file_private *fpriv, drm_dbg(&i915->drm, "Invalid engine[%d]: { class:%d, instance:%d }\n", n, ci.engine_class, ci.engine_instance); - kfree(set.engines); - return -ENOENT; + err = -ENOENT; + goto err; } set.engines[n].type = I915_GEM_ENGINE_TYPE_PHYSICAL; @@ -596,15 +596,21 @@ static int set_proto_ctx_engines(struct drm_i915_file_private *fpriv, set_proto_ctx_engines_extensions, ARRAY_SIZE(set_proto_ctx_engines_extensions), &set); - if (err) { - kfree(set.engines); - return err; - } + if (err) + goto err_extensions; pc->num_user_engines = set.num_engines; pc->user_engines = set.engines; return 0; + +err_extensions: + for (n = 0; n < set.num_engines; n++) + kfree(set.engines[n].siblings); +err: + kfree(set.engines); + + return err; } static int set_proto_ctx_sseu(struct drm_i915_file_private *fpriv, @@ -646,7 +652,7 @@ static int set_proto_ctx_sseu(struct drm_i915_file_private *fpriv, pe = &pc->user_engines[idx]; /* Only render engine supports RPCS configuration. */ - if (pe->engine->class != RENDER_CLASS) + if (!pe->engine || pe->engine->class != RENDER_CLASS) return -EINVAL; sseu = &pe->sseu; diff --git a/drivers/gpu/drm/i915/gt/intel_engine_user.c b/drivers/gpu/drm/i915/gt/intel_engine_user.c index 8f8bea08e734..04fced8e9d36 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_user.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_user.c @@ -235,7 +235,7 @@ void intel_engines_driver_register(struct drm_i915_private *i915) p = &prev->rb_right; } - if (IS_ENABLED(CONFIG_DRM_I915_SELFTESTS) && + if (IS_ENABLED(CONFIG_DRM_I915_SELFTEST) && IS_ENABLED(CONFIG_DRM_I915_DEBUG_GEM)) { struct intel_engine_cs *engine; unsigned int isolation; diff --git a/drivers/gpu/drm/i915/gt/selftest_gt_pm.c b/drivers/gpu/drm/i915/gt/selftest_gt_pm.c index b9441217ca3d..f8f66beca534 100644 --- a/drivers/gpu/drm/i915/gt/selftest_gt_pm.c +++ b/drivers/gpu/drm/i915/gt/selftest_gt_pm.c @@ -15,9 +15,9 @@ static int cmp_u64(const void *A, const void *B) { const u64 *a = A, *b = B; - if (a < b) + if (*a < *b) return -1; - else if (a > b) + else if (*a > *b) return 1; else return 0; @@ -27,9 +27,9 @@ static int cmp_u32(const void *A, const void *B) { const u32 *a = A, *b = B; - if (a < b) + if (*a < *b) return -1; - else if (a > b) + else if (*a > *b) return 1; else return 0; diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c index 3034ce392ac1..11dad8447bb6 100644 --- a/drivers/gpu/drm/i915/i915_active.c +++ b/drivers/gpu/drm/i915/i915_active.c @@ -319,7 +319,7 @@ active_instance(struct i915_active *ref, u64 idx) */ node = kmem_cache_alloc(slab_cache, GFP_ATOMIC); if (!node) - goto out; + goto err; __i915_active_fence_init(&node->base, NULL, node_retire); node->ref = ref; @@ -333,6 +333,11 @@ active_instance(struct i915_active *ref, u64 idx) spin_unlock_irq(&ref->tree_lock); return &node->base; + +err: + spin_unlock_irq(&ref->tree_lock); + + return NULL; } void __i915_active_init(struct i915_active *ref, diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c index 27f3e9142558..993c5743192b 100644 --- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c +++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c @@ -172,10 +172,10 @@ static void mtk_drm_crtc_reset(struct drm_crtc *crtc) { struct mtk_crtc_state *state; - if (crtc->state) + if (crtc->state) { __drm_atomic_helper_crtc_destroy_state(crtc->state); - - kfree(to_mtk_crtc_state(crtc->state)); + kfree(to_mtk_crtc_state(crtc->state)); + } crtc->state = NULL; state = kzalloc(sizeof(*state), GFP_KERNEL); diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c index af6cac696d43..78869b159164 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c @@ -314,6 +314,7 @@ nvkm_acr_oneinit(struct nvkm_subdev *subdev) i, us, fw); } } + nvkm_done(acr->wpr); return -EINVAL; } nvkm_done(acr->wpr); diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index d7256d1a1f48..2ffe03eecaa4 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -904,6 +904,7 @@ struct radeon_fence *r100_copy_blit(struct radeon_device *rdev, { struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]; struct radeon_fence *fence; + uint64_t cur_src_offset, cur_dst_offset; uint32_t cur_pages; uint32_t stride_bytes = RADEON_GPU_PAGE_SIZE; uint32_t pitch; @@ -932,6 +933,10 @@ struct radeon_fence *r100_copy_blit(struct radeon_device *rdev, cur_pages = 8191; } num_gpu_pages -= cur_pages; + cur_src_offset = src_offset + + (uint64_t)num_gpu_pages * RADEON_GPU_PAGE_SIZE; + cur_dst_offset = dst_offset + + (uint64_t)num_gpu_pages * RADEON_GPU_PAGE_SIZE; /* pages are in Y direction - height page width in X direction - width */ @@ -948,13 +953,13 @@ struct radeon_fence *r100_copy_blit(struct radeon_device *rdev, RADEON_DP_SRC_SOURCE_MEMORY | RADEON_GMC_CLR_CMP_CNTL_DIS | RADEON_GMC_WR_MSK_DIS); - radeon_ring_write(ring, (pitch << 22) | (src_offset >> 10)); - radeon_ring_write(ring, (pitch << 22) | (dst_offset >> 10)); + radeon_ring_write(ring, (pitch << 22) | (cur_src_offset >> 10)); + radeon_ring_write(ring, (pitch << 22) | (cur_dst_offset >> 10)); radeon_ring_write(ring, (0x1fff) | (0x1fff << 16)); radeon_ring_write(ring, 0); radeon_ring_write(ring, (0x1fff) | (0x1fff << 16)); - radeon_ring_write(ring, num_gpu_pages); - radeon_ring_write(ring, num_gpu_pages); + radeon_ring_write(ring, 0); + radeon_ring_write(ring, 0); radeon_ring_write(ring, cur_pages | (stride_pixels << 16)); } radeon_ring_write(ring, PACKET0(RADEON_DSTCACHE_CTLSTAT, 0)); diff --git a/drivers/gpu/drm/rockchip/cdn-dp-reg.c b/drivers/gpu/drm/rockchip/cdn-dp-reg.c index 33fb4d05c506..7b16c28ba25a 100644 --- a/drivers/gpu/drm/rockchip/cdn-dp-reg.c +++ b/drivers/gpu/drm/rockchip/cdn-dp-reg.c @@ -683,6 +683,8 @@ int cdn_dp_config_video(struct cdn_dp_device *dp) val = div_u64(8 * (symbol + 1), bit_per_pix) - val; val += 2; ret = cdn_dp_reg_write(dp, DP_VC_TABLE(15), val); + if (ret) + goto err_config_video; switch (video->color_depth) { case 6: diff --git a/drivers/gpu/drm/vc4/vc4_validate.c b/drivers/gpu/drm/vc4/vc4_validate.c index eec76af49f04..985572a012d3 100644 --- a/drivers/gpu/drm/vc4/vc4_validate.c +++ b/drivers/gpu/drm/vc4/vc4_validate.c @@ -379,6 +379,23 @@ validate_tile_binning_config(VALIDATE_ARGS) return -EINVAL; } + /* The tile state data array is 48 bytes per tile, and we put it at + * the start of a BO containing both it and the tile alloc. + */ + tile_state_size = 48 * tile_count; + + /* Since the tile alloc array will follow us, align. */ + tile_state_size = roundup(tile_state_size, 4096); + + /* Reject configurations whose tile state would leave no room for + * the tile alloc pool that follows it in the slot. + */ + if (tile_state_size >= vc4->bin_alloc_size) { + DRM_DEBUG("Tile binning config of %dx%d too large\n", + exec->bin_tiles_x, exec->bin_tiles_y); + return -EINVAL; + } + bin_slot = vc4_v3d_get_bin_slot(vc4); if (bin_slot < 0) { if (bin_slot != -EINTR && bin_slot != -ERESTARTSYS) { @@ -394,13 +411,13 @@ validate_tile_binning_config(VALIDATE_ARGS) exec->bin_slots |= BIT(bin_slot); bin_addr = vc4->bin_bo->base.paddr + bin_slot * vc4->bin_alloc_size; - /* The tile state data array is 48 bytes per tile, and we put it at - * the start of a BO containing both it and the tile alloc. - */ - tile_state_size = 48 * tile_count; + exec->tile_alloc_offset = bin_addr + tile_state_size; - /* Since the tile alloc array will follow us, align. */ - exec->tile_alloc_offset = bin_addr + roundup(tile_state_size, 4096); + /* The TSDA area must be zeroed out before use, otherwise the PTB might + * consume a stale tile state. + */ + memset(vc4->bin_bo->base.vaddr + bin_slot * vc4->bin_alloc_size, 0, + tile_state_size); *(uint8_t *)(validated + 14) = ((flags & ~(VC4_BIN_CONFIG_ALLOC_INIT_BLOCK_SIZE_MASK | diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index dc7c81074e83..a1abd820c83e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -1534,6 +1534,12 @@ static int vmw_cmd_dma(struct vmw_private *dev_priv, bool dirty; cmd = container_of(header, typeof(*cmd), header); + + if (unlikely(header->size < sizeof(cmd->body) + sizeof(*suffix))) { + VMW_DEBUG_USER("Illegal SVGA_3D_CMD_SURFACE_DMA size.\n"); + return -EINVAL; + } + suffix = (SVGA3dCmdSurfaceDMASuffix *)((unsigned long) &cmd->body + header->size - sizeof(*suffix)); @@ -1595,11 +1601,17 @@ static int vmw_cmd_draw(struct vmw_private *dev_priv, uint32_t maxnum; int ret; + cmd = container_of(header, typeof(*cmd), header); + + if (unlikely(header->size < sizeof(cmd->body))) { + VMW_DEBUG_USER("Illegal DRAW_PRIMITIVES header size.\n"); + return -EINVAL; + } + ret = vmw_cmd_cid_check(dev_priv, sw_context, header); if (unlikely(ret != 0)) return ret; - cmd = container_of(header, typeof(*cmd), header); maxnum = (header->size - sizeof(cmd->body)) / sizeof(*decl); if (unlikely(cmd->body.numVertexDecls > maxnum)) { diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c index 872af7d4b3fc..2d1279cbcc60 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c @@ -104,7 +104,7 @@ static int vmw_gb_surface_unbind(struct vmw_resource *res, static int vmw_gb_surface_destroy(struct vmw_resource *res); static int vmw_gb_surface_define_internal(struct drm_device *dev, - struct drm_vmw_gb_surface_create_ext_req *req, + const struct drm_vmw_gb_surface_create_ext_req *req, struct drm_vmw_gb_surface_create_rep *rep, struct drm_file *file_priv); static int @@ -1447,7 +1447,7 @@ int vmw_gb_surface_reference_ext_ioctl(struct drm_device *dev, void *data, */ static int vmw_gb_surface_define_internal(struct drm_device *dev, - struct drm_vmw_gb_surface_create_ext_req *req, + const struct drm_vmw_gb_surface_create_ext_req *req, struct drm_vmw_gb_surface_create_rep *rep, struct drm_file *file_priv) { @@ -1466,9 +1466,21 @@ vmw_gb_surface_define_internal(struct drm_device *dev, req->base.svga3d_flags); /* array_size must be null for non-GL3 host. */ - if (req->base.array_size > 0 && !has_sm4_context(dev_priv)) { - VMW_DEBUG_USER("SM4 surface not supported.\n"); - return -EINVAL; + if (req->base.array_size > 0) { + if (has_sm5_context(dev_priv)) { + if (req->base.array_size > SVGA3D_SM5_MAX_SURFACE_ARRAYSIZE) { + VMW_DEBUG_USER("Invalid Surface Array Size.\n"); + return -EINVAL; + } + } else if (has_sm4_context(dev_priv)) { + if (req->base.array_size > SVGA3D_SM4_MAX_SURFACE_ARRAYSIZE) { + VMW_DEBUG_USER("Invalid Surface Array Size.\n"); + return -EINVAL; + } + } else { + VMW_DEBUG_USER("SM4+ surface not supported.\n"); + return -EINVAL; + } } if (!has_sm4_1_context(dev_priv)) { diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c index be9fbf14f137..015974b4f5ee 100644 --- a/drivers/hid/hid-logitech-dj.c +++ b/drivers/hid/hid-logitech-dj.c @@ -1749,7 +1749,8 @@ static int logi_dj_raw_event(struct hid_device *hdev, static int logi_dj_probe(struct hid_device *hdev, const struct hid_device_id *id) { - struct hid_report_enum *rep_enum; + struct hid_report_enum *input_report_enum; + struct hid_report_enum *output_report_enum; struct hid_report *rep; struct dj_receiver_dev *djrcv_dev; struct usb_interface *intf; @@ -1793,10 +1794,25 @@ static int logi_dj_probe(struct hid_device *hdev, } } - rep_enum = &hdev->report_enum[HID_INPUT_REPORT]; + output_report_enum = &hdev->report_enum[HID_OUTPUT_REPORT]; + rep = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT]; + + if (rep && rep->maxfield < 1) { + hid_err(hdev, "Expected size of DJ short report is %d, but got 0", + DJREPORT_SHORT_LENGTH - 1); + return -EINVAL; + } + + if (rep && rep->field[0]->report_count != DJREPORT_SHORT_LENGTH - 1) { + hid_err(hdev, "Expected size of DJ short report is %d, but got %d", + DJREPORT_SHORT_LENGTH - 1, rep->field[0]->report_count); + return -EINVAL; + } + + input_report_enum = &hdev->report_enum[HID_INPUT_REPORT]; /* no input reports, bail out */ - if (list_empty(&rep_enum->report_list)) + if (list_empty(&input_report_enum->report_list)) return -ENODEV; /* @@ -1804,7 +1820,7 @@ static int logi_dj_probe(struct hid_device *hdev, * Note: we should theoretically check for HID++ and DJ * collections, but this will do. */ - list_for_each_entry(rep, &rep_enum->report_list, list) { + list_for_each_entry(rep, &input_report_enum->report_list, list) { if (rep->application == 0xff000001) has_hidpp = true; } @@ -1817,7 +1833,7 @@ static int logi_dj_probe(struct hid_device *hdev, return -ENODEV; /* get the current application attached to the node */ - rep = list_first_entry(&rep_enum->report_list, struct hid_report, list); + rep = list_first_entry(&input_report_enum->report_list, struct hid_report, list); djrcv_dev = dj_get_receiver_dev(hdev, id->driver_data, rep->application, has_hidpp); if (!djrcv_dev) { @@ -1825,7 +1841,7 @@ static int logi_dj_probe(struct hid_device *hdev, return -ENOMEM; } - if (!rep_enum->numbered) + if (!input_report_enum->numbered) djrcv_dev->unnumbered_application = rep->application; /* Starts the usb device and connects to upper interfaces hiddev and diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c index c67cd037a93f..e4be1750d9b6 100644 --- a/drivers/hwmon/adt7470.c +++ b/drivers/hwmon/adt7470.c @@ -70,8 +70,8 @@ static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END }; #define ADT7470_PWM1_AUTO_MASK 0x80 #define ADT7470_PWM_AUTO_MASK 0xC0 #define ADT7470_REG_PWM34_CFG 0x69 -#define ADT7470_PWM3_AUTO_MASK 0x40 -#define ADT7470_PWM4_AUTO_MASK 0x80 +#define ADT7470_PWM4_AUTO_MASK 0x40 +#define ADT7470_PWM3_AUTO_MASK 0x80 #define ADT7470_REG_PWM_MIN_BASE_ADDR 0x6A #define ADT7470_REG_PWM_MIN_MAX_ADDR 0x6D #define ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR 0x6E @@ -110,6 +110,21 @@ static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END }; #define ALARM2(x) ((x) << 8) +/* TEMP1..TEMP7 (ch 0..6) are, respectively BIT(0)..BIT(6) of reg 0x41 and + * 0x72, or BIT(0)..BIT(6) of data->alarm. + * TEMP8..TEMP9 (ch 7..9) are, respectively BIT(0)..BIT(2) of reg 0x42 and + * 0x73, or BIT(8)..BIT(10) of data->alarm. + */ +#define TEMP_ALARM_BIT(ch) ({ \ + typeof(ch) _ch = (ch); \ + (1 << (_ch < 7 ? _ch : _ch + 1)); \ +}) + +/* FAN1..FAN4 (ch 0..3) are respectively BIT(4)..BIT(7) in + * reg 0x42 and 0x73 or BIT(12)..BIT(15) in data->alarm. + */ +#define FAN_ALARM_BIT(ch) (1 << (12 + (ch))) + #define ADT7470_VENDOR 0x41 #define ADT7470_DEVICE 0x70 /* datasheet only mentions a revision 2 */ @@ -167,6 +182,7 @@ struct adt7470_data { u8 pwm_min[ADT7470_PWM_COUNT]; s8 pwm_tmin[ADT7470_PWM_COUNT]; u8 pwm_auto_temp[ADT7470_PWM_COUNT]; + u32 pwm_freq; struct task_struct *auto_update; unsigned int auto_update_interval; @@ -205,11 +221,12 @@ static inline int adt7470_write_word_data(struct adt7470_data *data, unsigned in /* Probe for temperature sensors. Assumes lock is held */ static int adt7470_read_temperatures(struct adt7470_data *data) { - unsigned long res; + struct device *dev = regmap_get_device(data->regmap); + u8 pwm[ADT7470_FAN_COUNT]; unsigned int pwm_cfg[2]; - int err; + unsigned long res; + int err, err2; int i; - u8 pwm[ADT7470_FAN_COUNT]; /* save pwm[1-4] config register */ err = regmap_read(data->regmap, ADT7470_REG_PWM_CFG(0), &pwm_cfg[0]); @@ -233,19 +250,19 @@ static int adt7470_read_temperatures(struct adt7470_data *data) err = regmap_update_bits(data->regmap, ADT7470_REG_PWM_CFG(2), ADT7470_PWM_AUTO_MASK, 0); if (err < 0) - return err; + goto out_restore; /* write pwm control to whatever it was */ err = regmap_bulk_write(data->regmap, ADT7470_REG_PWM(0), &pwm[0], ADT7470_PWM_COUNT); if (err < 0) - return err; + goto out_restore; /* start reading temperature sensors */ err = regmap_update_bits(data->regmap, ADT7470_REG_CFG, ADT7470_T05_STB_MASK, ADT7470_T05_STB_MASK); if (err < 0) - return err; + goto out_restore; /* Delay is 200ms * number of temp sensors. */ res = msleep_interruptible((data->num_temp_sensors >= 0 ? @@ -256,13 +273,30 @@ static int adt7470_read_temperatures(struct adt7470_data *data) err = regmap_update_bits(data->regmap, ADT7470_REG_CFG, ADT7470_T05_STB_MASK, 0); if (err < 0) - return err; + goto out_restore; +out_restore: /* restore pwm[1-4] config registers */ - err = regmap_write(data->regmap, ADT7470_REG_PWM_CFG(0), pwm_cfg[0]); - if (err < 0) - return err; - err = regmap_write(data->regmap, ADT7470_REG_PWM_CFG(2), pwm_cfg[1]); + err2 = regmap_write(data->regmap, ADT7470_REG_PWM_CFG(0), pwm_cfg[0]); + if (err2 < 0) { + dev_warn_ratelimited(dev, + "failed to restore PWM{1,2} config (%d)\n", + err2); + + if (!err) + err = err2; + } + + err2 = regmap_write(data->regmap, ADT7470_REG_PWM_CFG(2), pwm_cfg[1]); + if (err2 < 0) { + dev_warn_ratelimited(dev, + "failed to restore PWM{3,4} config (%d)\n", + err2); + + if (!err) + err = err2; + } + if (err < 0) return err; @@ -491,7 +525,7 @@ static ssize_t auto_update_interval_store(struct device *dev, if (kstrtol(buf, 10, &temp)) return -EINVAL; - temp = clamp_val(temp, 0, 60000); + temp = clamp_val(temp, 500, 60000); mutex_lock(&data->lock); data->auto_update_interval = temp; @@ -551,7 +585,7 @@ static int adt7470_temp_read(struct device *dev, u32 attr, int channel, long *va *val = 1000 * data->temp_max[channel]; break; case hwmon_temp_alarm: - *val = !!(data->alarm & channel); + *val = !!(data->alarm & TEMP_ALARM_BIT(channel)); break; default: return -EOPNOTSUPP; @@ -571,14 +605,16 @@ static int adt7470_temp_write(struct device *dev, u32 attr, int channel, long va switch (attr) { case hwmon_temp_min: mutex_lock(&data->lock); - data->temp_min[channel] = val; err = regmap_write(data->regmap, ADT7470_TEMP_MIN_REG(channel), val); + if (!err) + data->temp_min[channel] = val; mutex_unlock(&data->lock); break; case hwmon_temp_max: mutex_lock(&data->lock); - data->temp_max[channel] = val; err = regmap_write(data->regmap, ADT7470_TEMP_MAX_REG(channel), val); + if (!err) + data->temp_max[channel] = val; mutex_unlock(&data->lock); break; default: @@ -624,36 +660,33 @@ static ssize_t alarm_mask_store(struct device *dev, static int adt7470_fan_read(struct device *dev, u32 attr, int channel, long *val) { struct adt7470_data *data = adt7470_update_device(dev); + u16 fan_data; if (IS_ERR(data)) return PTR_ERR(data); switch (attr) { case hwmon_fan_input: - if (FAN_DATA_VALID(data->fan[channel])) - *val = FAN_PERIOD_TO_RPM(data->fan[channel]); - else - *val = 0; + fan_data = READ_ONCE(data->fan[channel]); break; case hwmon_fan_min: - if (FAN_DATA_VALID(data->fan_min[channel])) - *val = FAN_PERIOD_TO_RPM(data->fan_min[channel]); - else - *val = 0; + fan_data = READ_ONCE(data->fan_min[channel]); break; case hwmon_fan_max: - if (FAN_DATA_VALID(data->fan_max[channel])) - *val = FAN_PERIOD_TO_RPM(data->fan_max[channel]); - else - *val = 0; + fan_data = READ_ONCE(data->fan_max[channel]); break; case hwmon_fan_alarm: - *val = !!(data->alarm & (1 << (12 + channel))); - break; + *val = !!(data->alarm & FAN_ALARM_BIT(channel)); + return 0; default: return -EOPNOTSUPP; } + if (FAN_DATA_VALID(fan_data)) + *val = FAN_PERIOD_TO_RPM(fan_data); + else + *val = 0; + return 0; } @@ -721,7 +754,7 @@ static ssize_t force_pwm_max_store(struct device *dev, } /* These are the valid PWM frequencies to the nearest Hz */ -static const int adt7470_freq_map[] = { +static const u32 adt7470_freq_map[] = { 11, 15, 22, 29, 35, 44, 59, 88, 1400, 22500 }; @@ -769,7 +802,7 @@ static int adt7470_pwm_read(struct device *dev, u32 attr, int channel, long *val *val = 1 + data->pwm_automatic[channel]; break; case hwmon_pwm_freq: - *val = pwm1_freq_get(dev); + *val = data->pwm_freq; break; default: return -EOPNOTSUPP; @@ -782,12 +815,14 @@ static int pwm1_freq_set(struct device *dev, long freq) { struct adt7470_data *data = dev_get_drvdata(dev); unsigned int low_freq = ADT7470_CFG_LF; + u32 closest_freq; int index; int err; /* Round the user value given to the closest available frequency */ index = find_closest(freq, adt7470_freq_map, ARRAY_SIZE(adt7470_freq_map)); + closest_freq = adt7470_freq_map[index]; if (index >= 8) { index -= 8; @@ -805,6 +840,10 @@ static int pwm1_freq_set(struct device *dev, long freq) err = regmap_update_bits(data->regmap, ADT7470_REG_CFG_2, ADT7470_FREQ_MASK, index << ADT7470_FREQ_SHIFT); + if (err < 0) + goto out; + + data->pwm_freq = closest_freq; out: mutex_unlock(&data->lock); @@ -821,9 +860,10 @@ static int adt7470_pwm_write(struct device *dev, u32 attr, int channel, long val case hwmon_pwm_input: val = clamp_val(val, 0, 255); mutex_lock(&data->lock); - data->pwm[channel] = val; err = regmap_write(data->regmap, ADT7470_REG_PWM(channel), - data->pwm[channel]); + val); + if (!err) + data->pwm[channel] = val; mutex_unlock(&data->lock); break; case hwmon_pwm_enable: @@ -837,10 +877,11 @@ static int adt7470_pwm_write(struct device *dev, u32 attr, int channel, long val val--; mutex_lock(&data->lock); - data->pwm_automatic[channel] = val; err = regmap_update_bits(data->regmap, ADT7470_REG_PWM_CFG(channel), pwm_auto_reg_mask, val ? pwm_auto_reg_mask : 0); + if (!err) + data->pwm_automatic[channel] = val; mutex_unlock(&data->lock); break; case hwmon_pwm_freq: @@ -1016,8 +1057,10 @@ static ssize_t pwm_auto_temp_store(struct device *dev, if (temp < 0) return temp; + if (temp > 0xF) + return -EINVAL; + mutex_lock(&data->lock); - data->pwm_automatic[attr->index] = temp; if (!(attr->index % 2)) { mask = 0xF0; @@ -1028,6 +1071,9 @@ static ssize_t pwm_auto_temp_store(struct device *dev, } err = regmap_update_bits(data->regmap, pwm_auto_reg, mask, val); + if (!err) + data->pwm_auto_temp[attr->index] = temp; + mutex_unlock(&data->lock); return err < 0 ? err : count; @@ -1256,6 +1302,7 @@ static int adt7470_probe(struct i2c_client *client) struct device *dev = &client->dev; struct adt7470_data *data; struct device *hwmon_dev; + int freq_val; int err; data = devm_kzalloc(dev, sizeof(struct adt7470_data), GFP_KERNEL); @@ -1280,6 +1327,14 @@ static int adt7470_probe(struct i2c_client *client) if (err < 0) return err; + freq_val = pwm1_freq_get(dev); + if (freq_val <= 0) { + err = freq_val < 0 ? freq_val : -EINVAL; + return err; + } + + data->pwm_freq = (u32)freq_val; + /* Register sysfs hooks */ hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data, &adt7470_chip_info, diff --git a/drivers/hwmon/corsair-cpro.c b/drivers/hwmon/corsair-cpro.c index 18da3e013c20..62f9372f2d35 100644 --- a/drivers/hwmon/corsair-cpro.c +++ b/drivers/hwmon/corsair-cpro.c @@ -558,6 +558,7 @@ static int ccp_probe(struct hid_device *hdev, const struct hid_device_id *id) out_hw_close: hid_hw_close(hdev); + hid_device_io_stop(hdev); out_hw_stop: hid_hw_stop(hdev); return ret; diff --git a/drivers/hwmon/corsair-psu.c b/drivers/hwmon/corsair-psu.c index e3a46e5369c4..f96de071e909 100644 --- a/drivers/hwmon/corsair-psu.c +++ b/drivers/hwmon/corsair-psu.c @@ -644,7 +644,7 @@ static int vendor_show(struct seq_file *seqf, void *unused) { struct corsairpsu_data *priv = seqf->private; - seq_printf(seqf, "%s\n", priv->vendor); + seq_printf(seqf, "%.*s\n", REPLY_SIZE, priv->vendor); return 0; } @@ -654,7 +654,7 @@ static int product_show(struct seq_file *seqf, void *unused) { struct corsairpsu_data *priv = seqf->private; - seq_printf(seqf, "%s\n", priv->product); + seq_printf(seqf, "%.*s\n", REPLY_SIZE, priv->product); return 0; } @@ -742,6 +742,7 @@ static int corsairpsu_probe(struct hid_device *hdev, const struct hid_device_id fail_and_close: hid_hw_close(hdev); + hid_device_io_stop(hdev); fail_and_stop: hid_hw_stop(hdev); return ret; diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c index 71cfc1c5bd12..5428b5b4043d 100644 --- a/drivers/hwmon/nct6775.c +++ b/drivers/hwmon/nct6775.c @@ -851,12 +851,12 @@ static const u16 NCT6106_REG_TOLERANCE_H[] = { 0x112, 0x122, 0x132 }; static const u16 NCT6106_REG_TARGET[] = { 0x111, 0x121, 0x131 }; -static const u16 NCT6106_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188 }; -static const u16 NCT6106_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189 }; -static const u16 NCT6106_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a }; -static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x18b }; -static const u16 NCT6106_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c }; -static const u16 NCT6106_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d }; +static const u16 NCT6106_REG_WEIGHT_TEMP_SEL[] = { 0x168, 0x178, 0x188, 0, 0 }; +static const u16 NCT6106_REG_WEIGHT_TEMP_STEP[] = { 0x169, 0x179, 0x189, 0, 0 }; +static const u16 NCT6106_REG_WEIGHT_TEMP_STEP_TOL[] = { 0x16a, 0x17a, 0x18a, 0, 0 }; +static const u16 NCT6106_REG_WEIGHT_DUTY_STEP[] = { 0x16b, 0x17b, 0x18b, 0, 0 }; +static const u16 NCT6106_REG_WEIGHT_TEMP_BASE[] = { 0x16c, 0x17c, 0x18c, 0, 0 }; +static const u16 NCT6106_REG_WEIGHT_DUTY_BASE[] = { 0x16d, 0x17d, 0x18d, 0, 0 }; static const u16 NCT6106_REG_AUTO_TEMP[] = { 0x160, 0x170, 0x180 }; static const u16 NCT6106_REG_AUTO_PWM[] = { 0x164, 0x174, 0x184 }; diff --git a/drivers/hwmon/npcm750-pwm-fan.c b/drivers/hwmon/npcm750-pwm-fan.c index 11a28609da3c..aa81ea308f80 100644 --- a/drivers/hwmon/npcm750-pwm-fan.c +++ b/drivers/hwmon/npcm750-pwm-fan.c @@ -360,6 +360,11 @@ static void npcm7xx_fan_polling(struct timer_list *t) add_timer(&data->fan_timer); } +static void npcm7xx_fan_cleanup(void *timer) +{ + timer_shutdown_sync(timer); +} + static inline void npcm7xx_fan_compute(struct npcm7xx_pwm_fan_data *data, u8 fan, u8 cmp, u8 fan_id, u8 flag_int, u8 flag_mode, u8 flag_clear) @@ -1003,6 +1008,12 @@ static int npcm7xx_pwm_fan_probe(struct platform_device *pdev) msecs_to_jiffies(NPCM7XX_FAN_POLL_TIMER_200MS); timer_setup(&data->fan_timer, npcm7xx_fan_polling, 0); + ret = devm_add_action_or_reset(dev, + npcm7xx_fan_cleanup, + &data->fan_timer); + if (ret) + return ret; + add_timer(&data->fan_timer); break; } diff --git a/drivers/hwmon/occ/common.c b/drivers/hwmon/occ/common.c index dff198858512..86c54b36b7db 100644 --- a/drivers/hwmon/occ/common.c +++ b/drivers/hwmon/occ/common.c @@ -1049,32 +1049,49 @@ static int occ_setup_sensor_attrs(struct occ *occ) } /* only need to do this once at startup, as OCC won't change sensors on us */ -static void occ_parse_poll_response(struct occ *occ) +static int occ_parse_poll_response(struct occ *occ) { unsigned int i, old_offset, offset = 0, size = 0; + u16 data_length; struct occ_sensor *sensor; - struct occ_sensors *sensors = &occ->sensors; + struct occ_sensors parsed = {}; + struct occ_sensors *sensors = &parsed; struct occ_response *resp = &occ->resp; struct occ_poll_response *poll = (struct occ_poll_response *)&resp->data[0]; struct occ_poll_response_header *header = &poll->header; struct occ_sensor_data_block *block = &poll->block; + data_length = get_unaligned_be16(&resp->data_length); + if (data_length < sizeof(*header) || data_length > OCC_RESP_DATA_BYTES) { + dev_err(occ->bus_dev, "invalid OCC poll response length %u\n", + data_length); + return -EMSGSIZE; + } + dev_info(occ->bus_dev, "OCC found, code level: %.16s\n", header->occ_code_level); for (i = 0; i < header->num_sensor_data_blocks; ++i) { block = (struct occ_sensor_data_block *)((u8 *)block + offset); + if (size + sizeof(*header) + sizeof(block->header) > + data_length) { + dev_err(occ->bus_dev, + "truncated OCC sensor block header\n"); + return -EMSGSIZE; + } + old_offset = offset; offset = (block->header.num_sensors * block->header.sensor_length) + sizeof(block->header); - size += offset; /* validate all the length/size fields */ - if ((size + sizeof(*header)) >= OCC_RESP_DATA_BYTES) { - dev_warn(occ->bus_dev, "exceeded response buffer\n"); - return; + if (size + sizeof(*header) + offset > data_length) { + dev_err(occ->bus_dev, + "exceeded OCC poll response length\n"); + return -EMSGSIZE; } + size += offset; dev_dbg(occ->bus_dev, " %04x..%04x: %.4s (%d sensors)\n", old_offset, offset - 1, block->header.eye_catcher, @@ -1104,46 +1121,82 @@ static void occ_parse_poll_response(struct occ *occ) dev_dbg(occ->bus_dev, "Max resp size: %u+%zd=%zd\n", size, sizeof(*header), size + sizeof(*header)); + occ->sensors = parsed; + + return 0; } -int occ_setup(struct occ *occ, const char *name) +int occ_active(struct occ *occ, bool active) { - int rc; - - mutex_init(&occ->lock); - occ->groups[0] = &occ->group; + int rc = mutex_lock_interruptible(&occ->lock); - /* no need to lock */ - rc = occ_poll(occ); - if (rc == -ESHUTDOWN) { - dev_info(occ->bus_dev, "host is not ready\n"); - return rc; - } else if (rc < 0) { - dev_err(occ->bus_dev, - "failed to get OCC poll response=%02x: %d\n", - occ->resp.return_status, rc); + if (rc) return rc; - } - occ->next_update = jiffies + OCC_UPDATE_FREQUENCY; - occ_parse_poll_response(occ); + if (active) { + if (occ->active) { + rc = -EALREADY; + goto unlock; + } - rc = occ_setup_sensor_attrs(occ); - if (rc) { - dev_err(occ->bus_dev, "failed to setup sensor attrs: %d\n", - rc); - return rc; - } + occ->error_count = 0; + occ->last_safe = 0; - occ->hwmon = devm_hwmon_device_register_with_groups(occ->bus_dev, name, - occ, occ->groups); - if (IS_ERR(occ->hwmon)) { - rc = PTR_ERR(occ->hwmon); - dev_err(occ->bus_dev, "failed to register hwmon device: %d\n", - rc); - return rc; + rc = occ_poll(occ); + if (rc < 0) { + dev_err(occ->bus_dev, + "failed to get OCC poll response=%02x: %d\n", + occ->resp.return_status, rc); + goto unlock; + } + + occ->next_update = jiffies + OCC_UPDATE_FREQUENCY; + rc = occ_parse_poll_response(occ); + if (rc) + goto unlock; + + occ->active = true; + rc = occ_setup_sensor_attrs(occ); + if (rc) { + dev_err(occ->bus_dev, + "failed to setup sensor attrs: %d\n", rc); + goto unlock; + } + + occ->hwmon = hwmon_device_register_with_groups(occ->bus_dev, + "occ", occ, + occ->groups); + if (IS_ERR(occ->hwmon)) { + rc = PTR_ERR(occ->hwmon); + occ->hwmon = NULL; + dev_err(occ->bus_dev, + "failed to register hwmon device: %d\n", rc); + goto unlock; + } + } else { + if (!occ->active) { + rc = -EALREADY; + goto unlock; + } + + if (occ->hwmon) + hwmon_device_unregister(occ->hwmon); + occ->active = false; + occ->hwmon = NULL; } +unlock: + mutex_unlock(&occ->lock); + return rc; +} + +int occ_setup(struct occ *occ) +{ + int rc; + + mutex_init(&occ->lock); + occ->groups[0] = &occ->group; + rc = occ_setup_sysfs(occ); if (rc) dev_err(occ->bus_dev, "failed to setup sysfs: %d\n", rc); @@ -1152,6 +1205,15 @@ int occ_setup(struct occ *occ, const char *name) } EXPORT_SYMBOL_GPL(occ_setup); +void occ_shutdown(struct occ *occ) +{ + occ_shutdown_sysfs(occ); + + if (occ->hwmon) + hwmon_device_unregister(occ->hwmon); +} +EXPORT_SYMBOL_GPL(occ_shutdown); + MODULE_AUTHOR("Eddie James "); MODULE_DESCRIPTION("Common OCC hwmon code"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/occ/common.h b/drivers/hwmon/occ/common.h index 7abf19102062..7ac4b2febce6 100644 --- a/drivers/hwmon/occ/common.h +++ b/drivers/hwmon/occ/common.h @@ -107,6 +107,7 @@ struct occ { struct attribute_group group; const struct attribute_group *groups[2]; + bool active; int error; /* final transfer error after retry */ int last_error; /* latest transfer error */ unsigned int error_count; /* number of xfr errors observed */ @@ -120,11 +121,15 @@ struct occ { u8 prev_stat; u8 prev_ext_stat; u8 prev_occs_present; + u8 prev_ips_status; + u8 prev_mode; }; -int occ_setup(struct occ *occ, const char *name); +int occ_active(struct occ *occ, bool active); +int occ_setup(struct occ *occ); int occ_setup_sysfs(struct occ *occ); void occ_shutdown(struct occ *occ); +void occ_shutdown_sysfs(struct occ *occ); void occ_sysfs_poll_done(struct occ *occ); int occ_update_response(struct occ *occ); diff --git a/drivers/hwmon/occ/p8_i2c.c b/drivers/hwmon/occ/p8_i2c.c index c35c07964d85..b221be1f35f3 100644 --- a/drivers/hwmon/occ/p8_i2c.c +++ b/drivers/hwmon/occ/p8_i2c.c @@ -224,7 +224,7 @@ static int p8_i2c_occ_probe(struct i2c_client *client) occ->poll_cmd_data = 0x10; /* P8 OCC poll data */ occ->send_cmd = p8_i2c_occ_send_cmd; - return occ_setup(occ, "p8_occ"); + return occ_setup(occ); } static int p8_i2c_occ_remove(struct i2c_client *client) diff --git a/drivers/hwmon/occ/p9_sbe.c b/drivers/hwmon/occ/p9_sbe.c index 14923e78e1f3..3c3d887fcc1e 100644 --- a/drivers/hwmon/occ/p9_sbe.c +++ b/drivers/hwmon/occ/p9_sbe.c @@ -73,7 +73,7 @@ static int p9_sbe_occ_probe(struct platform_device *pdev) occ->poll_cmd_data = 0x20; /* P9 OCC poll data */ occ->send_cmd = p9_sbe_occ_send_cmd; - rc = occ_setup(occ, "p9_occ"); + rc = occ_setup(occ); if (rc == -ESHUTDOWN) rc = -ENODEV; /* Host is shutdown, don't spew errors */ diff --git a/drivers/hwmon/occ/sysfs.c b/drivers/hwmon/occ/sysfs.c index 03b16abef67f..2317301fc1e9 100644 --- a/drivers/hwmon/occ/sysfs.c +++ b/drivers/hwmon/occ/sysfs.c @@ -6,19 +6,40 @@ #include #include #include +#include #include #include "common.h" /* OCC status register */ #define OCC_STAT_MASTER BIT(7) -#define OCC_STAT_ACTIVE BIT(0) /* OCC extended status register */ #define OCC_EXT_STAT_DVFS_OT BIT(7) #define OCC_EXT_STAT_DVFS_POWER BIT(6) #define OCC_EXT_STAT_MEM_THROTTLE BIT(5) #define OCC_EXT_STAT_QUICK_DROP BIT(4) +#define OCC_EXT_STAT_DVFS_VDD BIT(3) +#define OCC_EXT_STAT_GPU_THROTTLE GENMASK(2, 0) + +static ssize_t occ_active_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int rc; + bool active; + struct occ *occ = dev_get_drvdata(dev); + + rc = kstrtobool(buf, &active); + if (rc) + return rc; + + rc = occ_active(occ, active); + if (rc) + return rc; + + return count; +} static ssize_t occ_sysfs_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -29,42 +50,64 @@ static ssize_t occ_sysfs_show(struct device *dev, struct occ_poll_response_header *header; struct sensor_device_attribute *sattr = to_sensor_dev_attr(attr); - rc = occ_update_response(occ); - if (rc) - return rc; + if (occ->active) { + rc = occ_update_response(occ); + if (rc) + return rc; - header = (struct occ_poll_response_header *)occ->resp.data; - - switch (sattr->index) { - case 0: - val = !!(header->status & OCC_STAT_MASTER); - break; - case 1: - val = !!(header->status & OCC_STAT_ACTIVE); - break; - case 2: - val = !!(header->ext_status & OCC_EXT_STAT_DVFS_OT); - break; - case 3: - val = !!(header->ext_status & OCC_EXT_STAT_DVFS_POWER); - break; - case 4: - val = !!(header->ext_status & OCC_EXT_STAT_MEM_THROTTLE); - break; - case 5: - val = !!(header->ext_status & OCC_EXT_STAT_QUICK_DROP); - break; - case 6: - val = header->occ_state; - break; - case 7: - if (header->status & OCC_STAT_MASTER) - val = hweight8(header->occs_present); - else + header = (struct occ_poll_response_header *)occ->resp.data; + + switch (sattr->index) { + case 0: + val = !!(header->status & OCC_STAT_MASTER); + break; + case 1: val = 1; - break; - default: - return -EINVAL; + break; + case 2: + val = !!(header->ext_status & OCC_EXT_STAT_DVFS_OT); + break; + case 3: + val = !!(header->ext_status & OCC_EXT_STAT_DVFS_POWER); + break; + case 4: + val = !!(header->ext_status & + OCC_EXT_STAT_MEM_THROTTLE); + break; + case 5: + val = !!(header->ext_status & OCC_EXT_STAT_QUICK_DROP); + break; + case 6: + val = header->occ_state; + break; + case 7: + if (header->status & OCC_STAT_MASTER) + val = hweight8(header->occs_present); + else + val = 1; + break; + case 8: + val = header->ips_status; + break; + case 9: + val = header->mode; + break; + case 10: + val = !!(header->ext_status & OCC_EXT_STAT_DVFS_VDD); + break; + case 11: + val = header->ext_status & OCC_EXT_STAT_GPU_THROTTLE; + break; + default: + return -EINVAL; + } + } else { + if (sattr->index == 1) + val = 0; + else if (sattr->index <= 11) + val = -ENODATA; + else + return -EINVAL; } return sysfs_emit(buf, "%d\n", val); @@ -81,13 +124,18 @@ static ssize_t occ_error_show(struct device *dev, } static SENSOR_DEVICE_ATTR(occ_master, 0444, occ_sysfs_show, NULL, 0); -static SENSOR_DEVICE_ATTR(occ_active, 0444, occ_sysfs_show, NULL, 1); +static SENSOR_DEVICE_ATTR(occ_active, 0644, occ_sysfs_show, occ_active_store, + 1); static SENSOR_DEVICE_ATTR(occ_dvfs_overtemp, 0444, occ_sysfs_show, NULL, 2); static SENSOR_DEVICE_ATTR(occ_dvfs_power, 0444, occ_sysfs_show, NULL, 3); static SENSOR_DEVICE_ATTR(occ_mem_throttle, 0444, occ_sysfs_show, NULL, 4); static SENSOR_DEVICE_ATTR(occ_quick_pwr_drop, 0444, occ_sysfs_show, NULL, 5); static SENSOR_DEVICE_ATTR(occ_state, 0444, occ_sysfs_show, NULL, 6); static SENSOR_DEVICE_ATTR(occs_present, 0444, occ_sysfs_show, NULL, 7); +static SENSOR_DEVICE_ATTR(occ_ips_status, 0444, occ_sysfs_show, NULL, 8); +static SENSOR_DEVICE_ATTR(occ_mode, 0444, occ_sysfs_show, NULL, 9); +static SENSOR_DEVICE_ATTR(occ_dvfs_vdd, 0444, occ_sysfs_show, NULL, 10); +static SENSOR_DEVICE_ATTR(occ_gpu_throttle, 0444, occ_sysfs_show, NULL, 11); static DEVICE_ATTR_RO(occ_error); static struct attribute *occ_attributes[] = { @@ -99,6 +147,10 @@ static struct attribute *occ_attributes[] = { &sensor_dev_attr_occ_quick_pwr_drop.dev_attr.attr, &sensor_dev_attr_occ_state.dev_attr.attr, &sensor_dev_attr_occs_present.dev_attr.attr, + &sensor_dev_attr_occ_ips_status.dev_attr.attr, + &sensor_dev_attr_occ_mode.dev_attr.attr, + &sensor_dev_attr_occ_dvfs_vdd.dev_attr.attr, + &sensor_dev_attr_occ_gpu_throttle.dev_attr.attr, &dev_attr_occ_error.attr, NULL }; @@ -117,7 +169,7 @@ void occ_sysfs_poll_done(struct occ *occ) * On the first poll response, we haven't yet created the sysfs * attributes, so don't make any notify calls. */ - if (!occ->hwmon) + if (!occ->active) goto done; if ((header->status & OCC_STAT_MASTER) != @@ -126,12 +178,6 @@ void occ_sysfs_poll_done(struct occ *occ) sysfs_notify(&occ->bus_dev->kobj, NULL, name); } - if ((header->status & OCC_STAT_ACTIVE) != - (occ->prev_stat & OCC_STAT_ACTIVE)) { - name = sensor_dev_attr_occ_active.dev_attr.attr.name; - sysfs_notify(&occ->bus_dev->kobj, NULL, name); - } - if ((header->ext_status & OCC_EXT_STAT_DVFS_OT) != (occ->prev_ext_stat & OCC_EXT_STAT_DVFS_OT)) { name = sensor_dev_attr_occ_dvfs_overtemp.dev_attr.attr.name; @@ -156,12 +202,34 @@ void occ_sysfs_poll_done(struct occ *occ) sysfs_notify(&occ->bus_dev->kobj, NULL, name); } + if ((header->ext_status & OCC_EXT_STAT_DVFS_VDD) != + (occ->prev_ext_stat & OCC_EXT_STAT_DVFS_VDD)) { + name = sensor_dev_attr_occ_dvfs_vdd.dev_attr.attr.name; + sysfs_notify(&occ->bus_dev->kobj, NULL, name); + } + + if ((header->ext_status & OCC_EXT_STAT_GPU_THROTTLE) != + (occ->prev_ext_stat & OCC_EXT_STAT_GPU_THROTTLE)) { + name = sensor_dev_attr_occ_gpu_throttle.dev_attr.attr.name; + sysfs_notify(&occ->bus_dev->kobj, NULL, name); + } + if ((header->status & OCC_STAT_MASTER) && header->occs_present != occ->prev_occs_present) { name = sensor_dev_attr_occs_present.dev_attr.attr.name; sysfs_notify(&occ->bus_dev->kobj, NULL, name); } + if (header->ips_status != occ->prev_ips_status) { + name = sensor_dev_attr_occ_ips_status.dev_attr.attr.name; + sysfs_notify(&occ->bus_dev->kobj, NULL, name); + } + + if (header->mode != occ->prev_mode) { + name = sensor_dev_attr_occ_mode.dev_attr.attr.name; + sysfs_notify(&occ->bus_dev->kobj, NULL, name); + } + if (occ->error && occ->error != occ->prev_error) { name = dev_attr_occ_error.attr.name; sysfs_notify(&occ->bus_dev->kobj, NULL, name); @@ -174,6 +242,8 @@ void occ_sysfs_poll_done(struct occ *occ) occ->prev_stat = header->status; occ->prev_ext_stat = header->ext_status; occ->prev_occs_present = header->occs_present; + occ->prev_ips_status = header->ips_status; + occ->prev_mode = header->mode; } int occ_setup_sysfs(struct occ *occ) @@ -181,8 +251,7 @@ int occ_setup_sysfs(struct occ *occ) return sysfs_create_group(&occ->bus_dev->kobj, &occ_sysfs); } -void occ_shutdown(struct occ *occ) +void occ_shutdown_sysfs(struct occ *occ) { sysfs_remove_group(&occ->bus_dev->kobj, &occ_sysfs); } -EXPORT_SYMBOL_GPL(occ_shutdown); diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index 1ef214a8a01b..84497fd177d8 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -419,7 +419,7 @@ int pmbus_update_byte_data(struct i2c_client *client, int page, u8 reg, if (tmp != rv) rv = _pmbus_write_byte_data(client, page, reg, tmp); - return rv; + return rv < 0 ? rv : 0; } EXPORT_SYMBOL_NS_GPL(pmbus_update_byte_data, PMBUS); diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c index 4efd64a6755f..ee8082ebb3cc 100644 --- a/drivers/hwtracing/intel_th/core.c +++ b/drivers/hwtracing/intel_th/core.c @@ -843,18 +843,8 @@ static int intel_th_output_open(struct inode *inode, struct file *file) return err; } -static int intel_th_output_release(struct inode *inode, struct file *file) -{ - struct intel_th_device *thdev = file->private_data; - - put_device(&thdev->dev); - - return 0; -} - static const struct file_operations intel_th_output_fops = { .open = intel_th_output_open, - .release = intel_th_output_release, .llseek = noop_llseek, }; diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c index d95d916b4682..21bd39ab975c 100644 --- a/drivers/hwtracing/intel_th/msu.c +++ b/drivers/hwtracing/intel_th/msu.c @@ -1479,8 +1479,10 @@ static int intel_th_msc_release(struct inode *inode, struct file *file) { struct msc_iter *iter = file->private_data; struct msc *msc = iter->msc; + struct intel_th_device *thdev = msc->thdev; msc_iter_remove(iter, msc); + put_device(&thdev->dev); return 0; } diff --git a/drivers/i2c/busses/i2c-amd-mp2-plat.c b/drivers/i2c/busses/i2c-amd-mp2-plat.c index de058671f9b8..6833b73ea64c 100644 --- a/drivers/i2c/busses/i2c-amd-mp2-plat.c +++ b/drivers/i2c/busses/i2c-amd-mp2-plat.c @@ -326,8 +326,10 @@ static int i2c_amd_probe(struct platform_device *pdev) amd_mp2_pm_runtime_put(mp2_dev); - if (ret < 0) + if (ret < 0) { dev_err(&pdev->dev, "i2c add adapter failed = %d\n", ret); + amd_mp2_unregister_cb(&i2c_dev->common); + } return ret; } diff --git a/drivers/i2c/busses/i2c-imx.c b/drivers/i2c/busses/i2c-imx.c index fae674969628..906cfcd4d6e2 100644 --- a/drivers/i2c/busses/i2c-imx.c +++ b/drivers/i2c/busses/i2c-imx.c @@ -865,6 +865,7 @@ static int i2c_imx_unreg_slave(struct i2c_client *client) i2c_imx_reset_regs(i2c_imx); + hrtimer_cancel(&i2c_imx->slave_timer); i2c_imx->slave = NULL; /* Suspend */ diff --git a/drivers/i2c/busses/i2c-jz4780.c b/drivers/i2c/busses/i2c-jz4780.c index baa7319eee53..09c7066d0fb2 100644 --- a/drivers/i2c/busses/i2c-jz4780.c +++ b/drivers/i2c/busses/i2c-jz4780.c @@ -141,6 +141,7 @@ struct jz4780_i2c { void __iomem *iomem; int irq; struct clk *clk; + unsigned long clk_rate_khz; struct i2c_adapter adap; const struct ingenic_i2c_config *cdata; @@ -246,7 +247,7 @@ static int jz4780_i2c_set_target(struct jz4780_i2c *i2c, unsigned char address) static int jz4780_i2c_set_speed(struct jz4780_i2c *i2c) { - int dev_clk_khz = clk_get_rate(i2c->clk) / 1000; + int dev_clk_khz = i2c->clk_rate_khz; int cnt_high = 0; /* HIGH period count of the SCL clock */ int cnt_low = 0; /* LOW period count of the SCL clock */ int cnt_period = 0; /* period count of the SCL clock */ @@ -800,6 +801,8 @@ static int jz4780_i2c_probe(struct platform_device *pdev) if (ret) return ret; + i2c->clk_rate_khz = clk_get_rate(i2c->clk) / 1000; + ret = of_property_read_u32(pdev->dev.of_node, "clock-frequency", &clk_freq); if (ret) { diff --git a/drivers/infiniband/core/mad.c b/drivers/infiniband/core/mad.c index 242434c09e8d..bddb1c607aff 100644 --- a/drivers/infiniband/core/mad.c +++ b/drivers/infiniband/core/mad.c @@ -1778,6 +1778,24 @@ void ib_mark_mad_done(struct ib_mad_send_wr_private *mad_send_wr) &mad_send_wr->mad_agent_priv->done_list); } +static bool is_kernel_rmpp_data_response(struct ib_mad_agent_private *agent, + struct ib_mad_recv_wc *mad_recv_wc) +{ + const struct ib_mad_hdr *mad_hdr = &mad_recv_wc->recv_buf.mad->mad_hdr; + struct ib_rmpp_mad *rmpp_mad; + + if (!ib_mad_kernel_rmpp_agent(&agent->agent) || + !ib_response_mad(mad_hdr) || + !ib_is_mad_class_rmpp(mad_hdr->mgmt_class)) + return false; + + rmpp_mad = (struct ib_rmpp_mad *)mad_recv_wc->recv_buf.mad; + + return (ib_get_rmpp_flags(&rmpp_mad->rmpp_hdr) & + IB_MGMT_RMPP_FLAG_ACTIVE) && + rmpp_mad->rmpp_hdr.rmpp_type == IB_MGMT_RMPP_TYPE_DATA; +} + static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv, struct ib_mad_recv_wc *mad_recv_wc) { @@ -1796,6 +1814,18 @@ static void ib_mad_complete_recv(struct ib_mad_agent_private *mad_agent_priv, } list_add(&mad_recv_wc->recv_buf.list, &mad_recv_wc->rmpp_list); + if (is_kernel_rmpp_data_response(mad_agent_priv, mad_recv_wc)) { + spin_lock_irqsave(&mad_agent_priv->lock, flags); + mad_send_wr = ib_find_send_mad(mad_agent_priv, mad_recv_wc); + spin_unlock_irqrestore(&mad_agent_priv->lock, flags); + + if (!mad_send_wr) { + ib_free_recv_mad(mad_recv_wc); + deref_mad_agent(mad_agent_priv); + return; + } + } + if (ib_mad_kernel_rmpp_agent(&mad_agent_priv->agent)) { mad_recv_wc = ib_process_rmpp_recv_wc(mad_agent_priv, mad_recv_wc); diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.c b/drivers/infiniband/hw/hns/hns_roce_hem.c index 61ae49219e6b..9649abeadbbf 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hem.c +++ b/drivers/infiniband/hw/hns/hns_roce_hem.c @@ -902,7 +902,7 @@ static void hns_roce_cleanup_mhop_hem_table(struct hns_roce_dev *hr_dev, mhop.bt_chunk_size; for (i = 0; i < table->num_hem; ++i) { - obj = i * buf_chunk_size / table->obj_size; + obj = (u64)i * buf_chunk_size / table->obj_size; if (table->hem[i]) hns_roce_table_mhop_put(hr_dev, table, obj, 0); } diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c index e6cf2734c684..4c309781b4d6 100644 --- a/drivers/infiniband/hw/irdma/verbs.c +++ b/drivers/infiniband/hw/irdma/verbs.c @@ -2256,7 +2256,7 @@ static bool irdma_check_mem_contiguous(u64 *arr, u32 npages, u32 pg_size) u32 pg_idx; for (pg_idx = 0; pg_idx < npages; pg_idx++) { - if ((*arr + (pg_size * pg_idx)) != arr[pg_idx]) + if ((*arr + ((u64)pg_size * pg_idx)) != arr[pg_idx]) return false; } @@ -2289,7 +2289,7 @@ static bool irdma_check_mr_contiguous(struct irdma_pble_alloc *palloc, for (i = 0; i < lvl2->leaf_cnt; i++, leaf++) { arr = leaf->addr; - if ((*start_addr + (i * pg_size * PBLE_PER_PAGE)) != *arr) + if ((*start_addr + ((u64)i * pg_size * PBLE_PER_PAGE)) != *arr) return false; ret = irdma_check_mem_contiguous(arr, leaf->cnt, pg_size); if (!ret) diff --git a/drivers/infiniband/sw/rxe/rxe_mmap.c b/drivers/infiniband/sw/rxe/rxe_mmap.c index 035f226af133..edd9345da295 100644 --- a/drivers/infiniband/sw/rxe/rxe_mmap.c +++ b/drivers/infiniband/sw/rxe/rxe_mmap.c @@ -94,18 +94,31 @@ int rxe_mmap(struct ib_ucontext *context, struct vm_area_struct *vma) goto done; found_it: + /* + * Increment refcount and check whether it is being freed atm while + * holding lock to prevent UAF + */ + if (!kref_get_unless_zero(&ip->ref)) { + spin_unlock_bh(&rxe->pending_lock); + ret = -ENXIO; + goto done; + } + list_del_init(&ip->pending_mmaps); spin_unlock_bh(&rxe->pending_lock); + vma->vm_ops = &rxe_vm_ops; + vma->vm_private_data = ip; + ret = remap_vmalloc_range(vma, ip->obj, 0); if (ret) { + vma->vm_private_data = NULL; + vma->vm_ops = NULL; + kref_put(&ip->ref, rxe_mmap_release); pr_err("err %d from remap_vmalloc_range\n", ret); goto done; } - vma->vm_ops = &rxe_vm_ops; - vma->vm_private_data = ip; - rxe_vma_open(vma); done: return ret; } diff --git a/drivers/infiniband/sw/siw/siw_verbs.c b/drivers/infiniband/sw/siw/siw_verbs.c index c83701d04c95..817970e39431 100644 --- a/drivers/infiniband/sw/siw/siw_verbs.c +++ b/drivers/infiniband/sw/siw/siw_verbs.c @@ -300,6 +300,7 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, struct siw_ucontext *uctx = rdma_udata_to_drv_context(udata, struct siw_ucontext, base_ucontext); + struct siw_uresp_create_qp uresp = {}; unsigned long flags; int num_sqe, num_rqe, rv = 0; size_t length; @@ -334,11 +335,10 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, goto err_atomic; } /* - * NOTE: we allow for zero element SQ and RQ WQE's SGL's - * but not for a QP unable to hold any WQE (SQ + RQ) + * NOTE: we don't allow for a QP unable to hold any SQ WQE */ - if (attrs->cap.max_send_wr + attrs->cap.max_recv_wr == 0) { - siw_dbg(base_dev, "QP must have send or receive queue\n"); + if (attrs->cap.max_send_wr == 0) { + siw_dbg(base_dev, "QP must have send queue\n"); rv = -EINVAL; goto err_atomic; } @@ -354,25 +354,13 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, spin_lock_init(&qp->rq_lock); spin_lock_init(&qp->orq_lock); - rv = siw_qp_add(sdev, qp); - if (rv) - goto err_atomic; - - num_sqe = attrs->cap.max_send_wr; - num_rqe = attrs->cap.max_recv_wr; - /* All queue indices are derived from modulo operations * on a free running 'get' (consumer) and 'put' (producer) * unsigned counter. Having queue sizes at power of two * avoids handling counter wrap around. */ - if (num_sqe) - num_sqe = roundup_pow_of_two(num_sqe); - else { - /* Zero sized SQ is not supported */ - rv = -EINVAL; - goto err_out_xa; - } + num_sqe = roundup_pow_of_two(attrs->cap.max_send_wr); + num_rqe = attrs->cap.max_recv_wr; if (num_rqe) num_rqe = roundup_pow_of_two(num_rqe); @@ -383,14 +371,14 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, if (qp->sendq == NULL) { rv = -ENOMEM; - goto err_out_xa; + goto err_out; } if (attrs->sq_sig_type != IB_SIGNAL_REQ_WR) { if (attrs->sq_sig_type == IB_SIGNAL_ALL_WR) qp->attrs.flags |= SIW_SIGNAL_ALL_WR; else { rv = -EINVAL; - goto err_out_xa; + goto err_out; } } qp->pd = pd; @@ -416,7 +404,7 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, if (qp->recvq == NULL) { rv = -ENOMEM; - goto err_out_xa; + goto err_out; } qp->attrs.rq_size = num_rqe; } @@ -431,11 +419,8 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, qp->attrs.state = SIW_QP_STATE_IDLE; if (udata) { - struct siw_uresp_create_qp uresp = {}; - uresp.num_sqe = num_sqe; uresp.num_rqe = num_rqe; - uresp.qp_id = qp_id(qp); if (qp->sendq) { length = num_sqe * sizeof(struct siw_sqe); @@ -444,7 +429,7 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, length, &uresp.sq_key); if (!qp->sq_entry) { rv = -ENOMEM; - goto err_out_xa; + goto err_out; } } @@ -456,9 +441,23 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, if (!qp->rq_entry) { uresp.sq_key = SIW_INVAL_UOBJ_KEY; rv = -ENOMEM; - goto err_out_xa; + goto err_out; } } + } + qp->tx_cpu = siw_get_tx_cpu(sdev); + if (qp->tx_cpu < 0) { + rv = -EINVAL; + goto err_out; + } + init_completion(&qp->qp_free); + + rv = siw_qp_add(sdev, qp); + if (rv) + goto err_out_tx; + + if (udata) { + uresp.qp_id = qp_id(qp); if (udata->outlen < sizeof(uresp)) { rv = -EINVAL; @@ -468,22 +467,19 @@ int siw_create_qp(struct ib_qp *ibqp, struct ib_qp_init_attr *attrs, if (rv) goto err_out_xa; } - qp->tx_cpu = siw_get_tx_cpu(sdev); - if (qp->tx_cpu < 0) { - rv = -EINVAL; - goto err_out_xa; - } + INIT_LIST_HEAD(&qp->devq); spin_lock_irqsave(&sdev->lock, flags); list_add_tail(&qp->devq, &sdev->qp_list); spin_unlock_irqrestore(&sdev->lock, flags); - init_completion(&qp->qp_free); - return 0; err_out_xa: xa_erase(&sdev->qp_xa, qp_id(qp)); +err_out_tx: + siw_put_tx_cpu(qp->tx_cpu); +err_out: if (uctx) { rdma_user_mmap_entry_remove(qp->sq_entry); rdma_user_mmap_entry_remove(qp->rq_entry); diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c index 95f90699d2b1..db014dae9500 100644 --- a/drivers/input/evdev.c +++ b/drivers/input/evdev.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include "input-compat.h" @@ -67,8 +68,10 @@ static size_t evdev_get_mask_cnt(unsigned int type) [EV_SND] = SND_CNT, [EV_FF] = FF_CNT, }; + unsigned long mask = array_index_mask_nospec(type, EV_CNT); - return (type < EV_CNT) ? counts[type] : 0; + /* Returns 0 for out-of-bounds types, including speculatively */ + return counts[type & mask] & mask; } /* requires the buffer lock to be held */ @@ -146,11 +149,11 @@ static void __evdev_queue_syn_dropped(struct evdev_client *client) struct timespec64 ts = ktime_to_timespec64(ev_time[client->clk_type]); struct input_event ev; + memset(&ev, 0, sizeof(ev)); ev.input_event_sec = ts.tv_sec; ev.input_event_usec = ts.tv_nsec / NSEC_PER_USEC; ev.type = EV_SYN; ev.code = SYN_DROPPED; - ev.value = 0; client->buffer[client->head++] = ev; client->head &= client->bufsize - 1; @@ -218,20 +221,20 @@ static void __pass_event(struct evdev_client *client, client->head &= client->bufsize - 1; if (unlikely(client->head == client->tail)) { + struct input_event ev; + + memset(&ev, 0, sizeof(ev)); + ev.input_event_sec = event->input_event_sec; + ev.input_event_usec = event->input_event_usec; + ev.type = EV_SYN; + ev.code = SYN_DROPPED; + /* * This effectively "drops" all unconsumed events, leaving * EV_SYN/SYN_DROPPED plus the newest event in the queue. */ client->tail = (client->head - 2) & (client->bufsize - 1); - - client->buffer[client->tail] = (struct input_event) { - .input_event_sec = event->input_event_sec, - .input_event_usec = event->input_event_usec, - .type = EV_SYN, - .code = SYN_DROPPED, - .value = 0, - }; - + client->buffer[client->tail] = ev; client->packet_head = client->tail; } @@ -253,6 +256,8 @@ static void evdev_pass_values(struct evdev_client *client, if (client->revoked) return; + memset(&event, 0, sizeof(event)); + ts = ktime_to_timespec64(ev_time[client->clk_type]); event.input_event_sec = ts.tv_sec; event.input_event_usec = ts.tv_nsec / NSEC_PER_USEC; diff --git a/drivers/input/misc/ims-pcu.c b/drivers/input/misc/ims-pcu.c index 59055818e0e6..6b1d8f92a9bb 100644 --- a/drivers/input/misc/ims-pcu.c +++ b/drivers/input/misc/ims-pcu.c @@ -448,6 +448,14 @@ static void ims_pcu_handle_response(struct ims_pcu *pcu) } } +static void ims_pcu_reset_packet(struct ims_pcu *pcu) +{ + pcu->have_stx = false; + pcu->have_dle = false; + pcu->read_pos = 0; + pcu->check_sum = 0; +} + static void ims_pcu_process_data(struct ims_pcu *pcu, struct urb *urb) { int i; @@ -460,6 +468,14 @@ static void ims_pcu_process_data(struct ims_pcu *pcu, struct urb *urb) continue; if (pcu->have_dle) { + if (pcu->read_pos >= IMS_PCU_BUF_SIZE) { + dev_warn(pcu->dev, + "Packet too long (%d bytes), discarding\n", + pcu->read_pos); + ims_pcu_reset_packet(pcu); + continue; + } + pcu->have_dle = false; pcu->read_buf[pcu->read_pos++] = data; pcu->check_sum += data; @@ -472,10 +488,8 @@ static void ims_pcu_process_data(struct ims_pcu *pcu, struct urb *urb) dev_warn(pcu->dev, "Unexpected STX at byte %d, discarding old data\n", pcu->read_pos); + ims_pcu_reset_packet(pcu); pcu->have_stx = true; - pcu->have_dle = false; - pcu->read_pos = 0; - pcu->check_sum = 0; break; case IMS_PCU_PROTOCOL_DLE: @@ -495,12 +509,18 @@ static void ims_pcu_process_data(struct ims_pcu *pcu, struct urb *urb) ims_pcu_handle_response(pcu); } - pcu->have_stx = false; - pcu->have_dle = false; - pcu->read_pos = 0; + ims_pcu_reset_packet(pcu); break; default: + if (pcu->read_pos >= IMS_PCU_BUF_SIZE) { + dev_warn(pcu->dev, + "Packet too long (%d bytes), discarding\n", + pcu->read_pos); + ims_pcu_reset_packet(pcu); + continue; + } + pcu->read_buf[pcu->read_pos++] = data; pcu->check_sum += data; break; diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index 065d626d5905..b9754219e5d9 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -3327,6 +3327,12 @@ static int __init parse_ivrs_acpihid(char *str) return 1; found: + if (early_acpihid_map_size == EARLY_MAP_SIZE) { + pr_err("Early ACPI HID map overflow - ignoring ivrs_acpihid%s\n", + str); + return 1; + } + p = acpiid; hid = strsep(&p, ":"); uid = p; diff --git a/drivers/iommu/intel/perf.c b/drivers/iommu/intel/perf.c index 700eeb07bda0..d7b2818649b8 100644 --- a/drivers/iommu/intel/perf.c +++ b/drivers/iommu/intel/perf.c @@ -63,7 +63,7 @@ void dmar_latency_disable(struct intel_iommu *iommu, enum latency_type type) return; spin_lock_irqsave(&latency_lock, flags); - memset(&lstat[type], 0, sizeof(*lstat) * DMAR_LATENCY_NUM); + memset(&lstat[type], 0, sizeof(*lstat)); spin_unlock_irqrestore(&latency_lock, flags); } diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index a96c9a15c9fe..bf97e003af1d 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -175,7 +175,7 @@ static inline bool intel_svm_capable(struct intel_iommu *iommu) void intel_svm_check(struct intel_iommu *iommu) { - if (!pasid_supported(iommu)) + if (!pasid_supported(iommu) || !ecap_smpwc(iommu->ecap)) return; if (cpu_feature_enabled(X86_FEATURE_GBPAGES) && diff --git a/drivers/media/cec/platform/seco/seco-cec.c b/drivers/media/cec/platform/seco/seco-cec.c index ae138cc253fd..cb69f931f85a 100644 --- a/drivers/media/cec/platform/seco/seco-cec.c +++ b/drivers/media/cec/platform/seco/seco-cec.c @@ -662,7 +662,7 @@ static int secocec_probe(struct platform_device *pdev) ret = secocec_ir_probe(secocec); if (ret) - goto err_notifier; + goto err_unregister_adapter; platform_set_drvdata(pdev, secocec); @@ -670,6 +670,10 @@ static int secocec_probe(struct platform_device *pdev) return ret; +err_unregister_adapter: + cec_notifier_cec_adap_unregister(secocec->notifier, secocec->cec_adap); + cec_unregister_adapter(secocec->cec_adap); + goto err; err_notifier: cec_notifier_cec_adap_unregister(secocec->notifier, secocec->cec_adap); err_delete_adapter: diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c index b66e80e6924e..d8c7a9b74706 100644 --- a/drivers/media/common/videobuf2/videobuf2-core.c +++ b/drivers/media/common/videobuf2/videobuf2-core.c @@ -2719,8 +2719,8 @@ static int __vb2_cleanup_fileio(struct vb2_queue *q) * @nonblock: mode selector (1 means blocking calls, 0 means nonblocking) * @read: access mode selector (1 means read, 0 means write) */ -static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_t count, - loff_t *ppos, int nonblock, int read) +static ssize_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_t count, + loff_t *ppos, int nonblock, int read) { struct vb2_fileio_data *fileio; struct vb2_fileio_buf *buf; @@ -2880,15 +2880,15 @@ static size_t __vb2_perform_fileio(struct vb2_queue *q, char __user *data, size_ return ret; } -size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count, - loff_t *ppos, int nonblocking) +ssize_t vb2_read(struct vb2_queue *q, char __user *data, size_t count, + loff_t *ppos, int nonblocking) { return __vb2_perform_fileio(q, data, count, ppos, nonblocking, 1); } EXPORT_SYMBOL_GPL(vb2_read); -size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count, - loff_t *ppos, int nonblocking) +ssize_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count, + loff_t *ppos, int nonblocking) { return __vb2_perform_fileio(q, (char __user *) data, count, ppos, nonblocking, 0); diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c index 7b0d6be9bf00..4c12f12742fb 100644 --- a/drivers/media/dvb-frontends/rtl2832.c +++ b/drivers/media/dvb-frontends/rtl2832.c @@ -1116,10 +1116,10 @@ static int rtl2832_remove(struct i2c_client *client) dev_dbg(&client->dev, "\n"); - cancel_delayed_work_sync(&dev->i2c_gate_work); - i2c_mux_del_adapters(dev->muxc); + cancel_delayed_work_sync(&dev->i2c_gate_work); + regmap_exit(dev->regmap); kfree(dev); diff --git a/drivers/media/dvb-frontends/rtl2832_sdr.c b/drivers/media/dvb-frontends/rtl2832_sdr.c index 1a2f0d2adadf..f0d6a979b420 100644 --- a/drivers/media/dvb-frontends/rtl2832_sdr.c +++ b/drivers/media/dvb-frontends/rtl2832_sdr.c @@ -396,7 +396,8 @@ static int rtl2832_sdr_alloc_urbs(struct rtl2832_sdr_dev *dev) } /* Must be called with vb_queue_lock hold */ -static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev) +static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev, + enum vb2_buffer_state state) { struct platform_device *pdev = dev->pdev; unsigned long flags; @@ -410,7 +411,7 @@ static void rtl2832_sdr_cleanup_queued_bufs(struct rtl2832_sdr_dev *dev) buf = list_entry(dev->queued_bufs.next, struct rtl2832_sdr_frame_buf, list); list_del(&buf->list); - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + vb2_buffer_done(&buf->vb.vb2_buf, state); } spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); } @@ -851,11 +852,15 @@ static int rtl2832_sdr_start_streaming(struct vb2_queue *vq, unsigned int count) dev_dbg(&pdev->dev, "\n"); - if (!dev->udev) + if (!dev->udev) { + rtl2832_sdr_cleanup_queued_bufs(dev, VB2_BUF_STATE_QUEUED); return -ENODEV; + } - if (mutex_lock_interruptible(&dev->v4l2_lock)) + if (mutex_lock_interruptible(&dev->v4l2_lock)) { + rtl2832_sdr_cleanup_queued_bufs(dev, VB2_BUF_STATE_QUEUED); return -ERESTARTSYS; + } if (d->props->power_ctrl) d->props->power_ctrl(d, 1); @@ -896,7 +901,11 @@ static int rtl2832_sdr_start_streaming(struct vb2_queue *vq, unsigned int count) if (ret) goto err; + mutex_unlock(&dev->v4l2_lock); + return 0; + err: + rtl2832_sdr_cleanup_queued_bufs(dev, VB2_BUF_STATE_QUEUED); mutex_unlock(&dev->v4l2_lock); return ret; @@ -916,7 +925,7 @@ static void rtl2832_sdr_stop_streaming(struct vb2_queue *vq) rtl2832_sdr_kill_urbs(dev); rtl2832_sdr_free_urbs(dev); rtl2832_sdr_free_stream_bufs(dev); - rtl2832_sdr_cleanup_queued_bufs(dev); + rtl2832_sdr_cleanup_queued_bufs(dev, VB2_BUF_STATE_ERROR); rtl2832_sdr_unset_adc(dev); /* sleep tuner */ diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c index 8019cdf5dbae..af6169f53c4e 100644 --- a/drivers/media/pci/cx23885/cx23885-core.c +++ b/drivers/media/pci/cx23885/cx23885-core.c @@ -990,8 +990,12 @@ static int cx23885_dev_setup(struct cx23885_dev *dev) } /* PCIe stuff */ - dev->lmmio = ioremap(pci_resource_start(dev->pci, 0), - pci_resource_len(dev->pci, 0)); + dev->lmmio = pci_ioremap_bar(dev->pci, 0); + if (!dev->lmmio) { + dev_err(&dev->pci->dev, "CORE %s: can't ioremap MMIO memory\n", + dev->name); + goto err_release_region; + } dev->bmmio = (u8 __iomem *)dev->lmmio; @@ -1096,6 +1100,12 @@ static int cx23885_dev_setup(struct cx23885_dev *dev) } return 0; + +err_release_region: + release_mem_region(pci_resource_start(dev->pci, 0), + pci_resource_len(dev->pci, 0)); + cx23885_devcount--; + return -ENODEV; } static void cx23885_dev_unregister(struct cx23885_dev *dev) diff --git a/drivers/media/pci/dm1105/dm1105.c b/drivers/media/pci/dm1105/dm1105.c index 9e9c7c071acc..57f7e4df41b2 100644 --- a/drivers/media/pci/dm1105/dm1105.c +++ b/drivers/media/pci/dm1105/dm1105.c @@ -1193,6 +1193,7 @@ static void dm1105_remove(struct pci_dev *pdev) dm1105_hw_exit(dev); free_irq(pdev->irq, dev); + destroy_workqueue(dev->wq); pci_iounmap(pdev, dev->io_mem); pci_release_regions(pdev); pci_disable_device(pdev); diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c index 81bb9a367195..c2684d95b55f 100644 --- a/drivers/media/pci/saa7134/saa7134-video.c +++ b/drivers/media/pci/saa7134/saa7134-video.c @@ -2126,8 +2126,10 @@ int saa7134_video_init1(struct saa7134_dev *dev) q->dev = &dev->pci->dev; ret = vb2_queue_init(q); if (ret) - return ret; - saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt); + goto err_free_ctrl; + ret = saa7134_pgtable_alloc(dev->pci, &dev->video_q.pt); + if (ret) + goto err_free_ctrl; q = &dev->vbi_vbq; q->type = V4L2_BUF_TYPE_VBI_CAPTURE; @@ -2144,11 +2146,24 @@ int saa7134_video_init1(struct saa7134_dev *dev) q->lock = &dev->lock; q->dev = &dev->pci->dev; ret = vb2_queue_init(q); - if (ret) - return ret; - saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt); + if (ret) { + saa7134_pgtable_free(dev->pci, &dev->video_q.pt); + goto err_free_ctrl; + } + + ret = saa7134_pgtable_alloc(dev->pci, &dev->vbi_q.pt); + if (ret) { + saa7134_pgtable_free(dev->pci, &dev->video_q.pt); + goto err_free_ctrl; + } return 0; + +err_free_ctrl: + v4l2_ctrl_handler_free(&dev->ctrl_handler); + if (card_has_radio(dev)) + v4l2_ctrl_handler_free(&dev->radio_ctrl_handler); + return ret; } void saa7134_video_fini(struct saa7134_dev *dev) diff --git a/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c b/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c index 2c39cd7f2862..aaa26055f0e4 100644 --- a/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c +++ b/drivers/media/platform/sunxi/sun4i-csi/sun4i_dma.c @@ -234,8 +234,10 @@ static int sun4i_csi_start_streaming(struct vb2_queue *vq, unsigned int count) int ret; csi_fmt = sun4i_csi_find_format(&csi->fmt.pixelformat, NULL); - if (!csi_fmt) - return -EINVAL; + if (!csi_fmt) { + ret = -EINVAL; + goto err_clear_dma_queue; + } dev_dbg(csi->dev, "Starting capture\n"); diff --git a/drivers/media/radio/radio-si476x.c b/drivers/media/radio/radio-si476x.c index b39a68f83c5f..96217f2089cf 100644 --- a/drivers/media/radio/radio-si476x.c +++ b/drivers/media/radio/radio-si476x.c @@ -1504,6 +1504,7 @@ static int si476x_radio_probe(struct platform_device *pdev) return 0; exit: v4l2_ctrl_handler_free(radio->videodev.ctrl_handler); + v4l2_device_unregister(&radio->v4l2dev); return rval; } diff --git a/drivers/media/test-drivers/vidtv/vidtv_bridge.c b/drivers/media/test-drivers/vidtv/vidtv_bridge.c index f7c5fb865495..9741aaa2ec92 100644 --- a/drivers/media/test-drivers/vidtv/vidtv_bridge.c +++ b/drivers/media/test-drivers/vidtv/vidtv_bridge.c @@ -596,8 +596,10 @@ static int __init vidtv_bridge_init(void) int ret; ret = platform_device_register(&vidtv_bridge_dev); - if (ret) + if (ret) { + platform_device_put(&vidtv_bridge_dev); return ret; + } ret = platform_driver_register(&vidtv_bridge_driver); if (ret) diff --git a/drivers/media/test-drivers/vimc/vimc-core.c b/drivers/media/test-drivers/vimc/vimc-core.c index 857529ce3638..8f4b4310ae33 100644 --- a/drivers/media/test-drivers/vimc/vimc-core.c +++ b/drivers/media/test-drivers/vimc/vimc-core.c @@ -350,6 +350,7 @@ static int __init vimc_init(void) if (ret) { dev_err(&vimc_pdev.dev, "platform device registration failed (err=%d)\n", ret); + platform_device_put(&vimc_pdev); return ret; } diff --git a/drivers/media/test-drivers/vivid/vivid-ctrls.c b/drivers/media/test-drivers/vivid/vivid-ctrls.c index 8dc50fe22972..8c3e14f2aaa5 100644 --- a/drivers/media/test-drivers/vivid/vivid-ctrls.c +++ b/drivers/media/test-drivers/vivid/vivid-ctrls.c @@ -487,14 +487,20 @@ static int vivid_vid_cap_s_ctrl(struct v4l2_ctrl *ctrl) vivid_update_format_cap(dev, true); break; case VIVID_CID_HAS_CROP_CAP: + if (vb2_is_busy(&dev->vb_vid_cap_q)) + return -EBUSY; dev->has_crop_cap = ctrl->val; vivid_update_format_cap(dev, true); break; case VIVID_CID_HAS_COMPOSE_CAP: + if (vb2_is_busy(&dev->vb_vid_cap_q)) + return -EBUSY; dev->has_compose_cap = ctrl->val; vivid_update_format_cap(dev, true); break; case VIVID_CID_HAS_SCALER_CAP: + if (vb2_is_busy(&dev->vb_vid_cap_q)) + return -EBUSY; dev->has_scaler_cap = ctrl->val; vivid_update_format_cap(dev, true); break; @@ -970,14 +976,20 @@ static int vivid_vid_out_s_ctrl(struct v4l2_ctrl *ctrl) switch (ctrl->id) { case VIVID_CID_HAS_CROP_OUT: + if (vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; dev->has_crop_out = ctrl->val; vivid_update_format_out(dev); break; case VIVID_CID_HAS_COMPOSE_OUT: + if (vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; dev->has_compose_out = ctrl->val; vivid_update_format_out(dev); break; case VIVID_CID_HAS_SCALER_OUT: + if (vb2_is_busy(&dev->vb_vid_out_q)) + return -EBUSY; dev->has_scaler_out = ctrl->val; vivid_update_format_out(dev); break; diff --git a/drivers/media/test-drivers/vivid/vivid-vid-cap.c b/drivers/media/test-drivers/vivid/vivid-vid-cap.c index c5ae8887edc3..127837e25ac9 100644 --- a/drivers/media/test-drivers/vivid/vivid-vid-cap.c +++ b/drivers/media/test-drivers/vivid/vivid-vid-cap.c @@ -385,6 +385,12 @@ void vivid_update_format_cap(struct vivid_dev *dev, bool keep_controls) unsigned size; u64 pixelclock; + /* + * This resets the format, so must never be called while vb2_is_busy(). + */ + if (WARN_ON(vb2_is_busy(&dev->vb_vid_cap_q))) + return; + switch (dev->input_type[dev->input]) { case WEBCAM: default: diff --git a/drivers/media/test-drivers/vivid/vivid-vid-out.c b/drivers/media/test-drivers/vivid/vivid-vid-out.c index e96d3d014143..4ef4885134c0 100644 --- a/drivers/media/test-drivers/vivid/vivid-vid-out.c +++ b/drivers/media/test-drivers/vivid/vivid-vid-out.c @@ -222,6 +222,12 @@ void vivid_update_format_out(struct vivid_dev *dev) unsigned size, p; u64 pixelclock; + /* + * This resets the format, so must never be called while vb2_is_busy(). + */ + if (WARN_ON(vb2_is_busy(&dev->vb_vid_out_q))) + return; + switch (dev->output_type[dev->output]) { case SVID: default: diff --git a/drivers/media/usb/airspy/airspy.c b/drivers/media/usb/airspy/airspy.c index 7a81be7970b2..0b42732f9276 100644 --- a/drivers/media/usb/airspy/airspy.c +++ b/drivers/media/usb/airspy/airspy.c @@ -518,11 +518,13 @@ static int airspy_start_streaming(struct vb2_queue *vq, unsigned int count) dev_dbg(s->dev, "\n"); - if (!s->udev) - return -ENODEV; - mutex_lock(&s->v4l2_lock); + if (!s->udev) { + ret = -ENODEV; + goto err_clear_bit; + } + s->sequence = 0; set_bit(POWER_ON, &s->flags); diff --git a/drivers/media/usb/cx231xx/cx231xx-cards.c b/drivers/media/usb/cx231xx/cx231xx-cards.c index bda729b42d05..64c3cb8fc2bf 100644 --- a/drivers/media/usb/cx231xx/cx231xx-cards.c +++ b/drivers/media/usb/cx231xx/cx231xx-cards.c @@ -1577,7 +1577,8 @@ static int cx231xx_init_v4l2(struct cx231xx *dev, dev->video_mode.end_point_addr, dev->video_mode.num_alt); - dev->video_mode.alt_max_pkt_size = devm_kmalloc_array(&udev->dev, 32, dev->video_mode.num_alt, GFP_KERNEL); + dev->video_mode.alt_max_pkt_size = devm_kmalloc_array(&interface->dev, 32, + dev->video_mode.num_alt, GFP_KERNEL); if (dev->video_mode.alt_max_pkt_size == NULL) return -ENOMEM; @@ -1618,7 +1619,8 @@ static int cx231xx_init_v4l2(struct cx231xx *dev, dev->vbi_mode.num_alt); /* compute alternate max packet sizes for vbi */ - dev->vbi_mode.alt_max_pkt_size = devm_kmalloc_array(&udev->dev, 32, dev->vbi_mode.num_alt, GFP_KERNEL); + dev->vbi_mode.alt_max_pkt_size = devm_kmalloc_array(&interface->dev, 32, + dev->vbi_mode.num_alt, GFP_KERNEL); if (dev->vbi_mode.alt_max_pkt_size == NULL) return -ENOMEM; @@ -1660,7 +1662,9 @@ static int cx231xx_init_v4l2(struct cx231xx *dev, "sliced CC EndPoint Addr 0x%x, Alternate settings: %i\n", dev->sliced_cc_mode.end_point_addr, dev->sliced_cc_mode.num_alt); - dev->sliced_cc_mode.alt_max_pkt_size = devm_kmalloc_array(&udev->dev, 32, dev->sliced_cc_mode.num_alt, GFP_KERNEL); + dev->sliced_cc_mode.alt_max_pkt_size = devm_kmalloc_array(&interface->dev, 32, + dev->sliced_cc_mode.num_alt, + GFP_KERNEL); if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) return -ENOMEM; @@ -1724,7 +1728,7 @@ static int cx231xx_usb_probe(struct usb_interface *interface, udev = usb_get_dev(interface_to_usbdev(interface)); /* allocate memory for our device state and initialize it */ - dev = devm_kzalloc(&udev->dev, sizeof(*dev), GFP_KERNEL); + dev = devm_kzalloc(&interface->dev, sizeof(*dev), GFP_KERNEL); if (dev == NULL) { retval = -ENOMEM; goto err_if; @@ -1854,7 +1858,9 @@ static int cx231xx_usb_probe(struct usb_interface *interface, dev->ts1_mode.end_point_addr, dev->ts1_mode.num_alt); - dev->ts1_mode.alt_max_pkt_size = devm_kmalloc_array(&udev->dev, 32, dev->ts1_mode.num_alt, GFP_KERNEL); + dev->ts1_mode.alt_max_pkt_size = devm_kmalloc_array(&interface->dev, 32, + dev->ts1_mode.num_alt, + GFP_KERNEL); if (dev->ts1_mode.alt_max_pkt_size == NULL) { retval = -ENOMEM; goto err_video_alt; diff --git a/drivers/media/usb/msi2500/msi2500.c b/drivers/media/usb/msi2500/msi2500.c index 71de6b4c4e4c..1302e6feaae5 100644 --- a/drivers/media/usb/msi2500/msi2500.c +++ b/drivers/media/usb/msi2500/msi2500.c @@ -541,7 +541,8 @@ static int msi2500_isoc_init(struct msi2500_dev *dev) } /* Must be called with vb_queue_lock hold */ -static void msi2500_cleanup_queued_bufs(struct msi2500_dev *dev) +static void msi2500_cleanup_queued_bufs(struct msi2500_dev *dev, + enum vb2_buffer_state state) { unsigned long flags; @@ -554,7 +555,7 @@ static void msi2500_cleanup_queued_bufs(struct msi2500_dev *dev) buf = list_entry(dev->queued_bufs.next, struct msi2500_frame_buf, list); list_del(&buf->list); - vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + vb2_buffer_done(&buf->vb.vb2_buf, state); } spin_unlock_irqrestore(&dev->queued_bufs_lock, flags); } @@ -830,25 +831,40 @@ static int msi2500_start_streaming(struct vb2_queue *vq, unsigned int count) dev_dbg(dev->dev, "\n"); - if (!dev->udev) - return -ENODEV; + if (!dev->udev) { + ret = -ENODEV; + goto err_cleanup; + } - if (mutex_lock_interruptible(&dev->v4l2_lock)) - return -ERESTARTSYS; + if (mutex_lock_interruptible(&dev->v4l2_lock)) { + ret = -ERESTARTSYS; + goto err_cleanup; + } /* wake-up tuner */ v4l2_subdev_call(dev->v4l2_subdev, core, s_power, 1); ret = msi2500_set_usb_adc(dev); + if (ret) + goto err_unlock_cleanup; ret = msi2500_isoc_init(dev); if (ret) - msi2500_cleanup_queued_bufs(dev); + goto err_unlock_cleanup; ret = msi2500_ctrl_msg(dev, CMD_START_STREAMING, 0); + if (ret) + goto err_isoc_cleanup; mutex_unlock(&dev->v4l2_lock); + return 0; +err_isoc_cleanup: + msi2500_isoc_cleanup(dev); +err_unlock_cleanup: + mutex_unlock(&dev->v4l2_lock); +err_cleanup: + msi2500_cleanup_queued_bufs(dev, VB2_BUF_STATE_QUEUED); return ret; } @@ -863,7 +879,7 @@ static void msi2500_stop_streaming(struct vb2_queue *vq) if (dev->udev) msi2500_isoc_cleanup(dev); - msi2500_cleanup_queued_bufs(dev); + msi2500_cleanup_queued_bufs(dev, VB2_BUF_STATE_ERROR); /* according to tests, at least 700us delay is required */ msleep(20); diff --git a/drivers/media/usb/pwc/pwc-if.c b/drivers/media/usb/pwc/pwc-if.c index e342199711d3..0ab96c4c7ecc 100644 --- a/drivers/media/usb/pwc/pwc-if.c +++ b/drivers/media/usb/pwc/pwc-if.c @@ -711,11 +711,15 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count) struct pwc_device *pdev = vb2_get_drv_priv(vq); int r; - if (!pdev->udev) + if (!pdev->udev) { + pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED); return -ENODEV; + } - if (mutex_lock_interruptible(&pdev->v4l2_lock)) + if (mutex_lock_interruptible(&pdev->v4l2_lock)) { + pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED); return -ERESTARTSYS; + } /* Turn on camera and set LEDS on */ pwc_camera_power(pdev, 1); pwc_set_leds(pdev, leds[0], leds[1]); @@ -727,6 +731,11 @@ static int start_streaming(struct vb2_queue *vq, unsigned int count) pwc_camera_power(pdev, 0); /* And cleanup any queued bufs!! */ pwc_cleanup_queued_bufs(pdev, VB2_BUF_STATE_QUEUED); + if (pdev->fill_buf) { + vb2_buffer_done(&pdev->fill_buf->vb.vb2_buf, + VB2_BUF_STATE_QUEUED); + pdev->fill_buf = NULL; + } } mutex_unlock(&pdev->v4l2_lock); diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index 3184308e6896..d0415ebe54d0 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -24,6 +24,8 @@ #include "uvcvideo.h" +#define JPEG_MARKER_SOI 0xd8 + /* ------------------------------------------------------------------------ * UVC Controls */ @@ -1077,6 +1079,7 @@ static int uvc_video_decode_start(struct uvc_streaming *stream, struct uvc_buffer *meta_buf, const u8 *data, int len) { + u8 header_len; u8 fid; /* Sanity checks: @@ -1089,9 +1092,58 @@ static int uvc_video_decode_start(struct uvc_streaming *stream, return -EINVAL; } + header_len = data[0]; fid = data[1] & UVC_STREAM_FID; - /* Increase the sequence number regardless of any buffer states, so + /* + * Mark the buffer as done if we're at the beginning of a new frame. + * End of frame detection is better implemented by checking the EOF + * bit (FID bit toggling is delayed by one frame compared to the EOF + * bit), but some devices don't set the bit at end of frame (and the + * last payload can be lost anyway). We thus must check if the FID has + * been toggled. + * + * stream->last_fid is initialized to -1, and buf->bytesused to 0, + * so the first isochronous frame will never trigger an end of frame + * detection. + * + * Empty buffers (bytesused == 0) don't trigger end of frame detection + * as it doesn't make sense to return an empty buffer. This also + * avoids detecting end of frame conditions at FID toggling if the + * previous payload had the EOF bit set. + */ + if (fid != stream->last_fid && buf && buf->bytesused != 0) { + uvc_dbg(stream->dev, FRAME, + "Frame complete (FID bit toggled)\n"); + buf->state = UVC_BUF_STATE_READY; + + return -EAGAIN; + } + + /* + * Some cameras, when running two parallel streams (one MJPEG alongside + * another non-MJPEG stream), are known to lose the EOF packet for a frame. + * We can detect the end of a frame by checking for a new SOI marker, as + * the SOI always lies on the packet boundary between two frames for + * these devices. + */ + if (stream->dev->quirks & UVC_QUIRK_MJPEG_NO_EOF && + (stream->cur_format->fcc == V4L2_PIX_FMT_MJPEG || + stream->cur_format->fcc == V4L2_PIX_FMT_JPEG) && + buf && buf->bytesused != 0) { + const u8 *packet = data + header_len; + + if (len >= header_len + 2 && + packet[0] == 0xff && packet[1] == JPEG_MARKER_SOI) { + buf->state = UVC_BUF_STATE_READY; + buf->error = 1; + stream->last_fid ^= UVC_STREAM_FID; + return -EAGAIN; + } + } + + /* + * Increase the sequence number regardless of any buffer states, so * that discontinuous sequence numbers always indicate lost frames. */ if (stream->last_fid != fid) { @@ -1155,31 +1207,9 @@ static int uvc_video_decode_start(struct uvc_streaming *stream, meta_buf->state = UVC_BUF_STATE_ACTIVE; } - /* Mark the buffer as done if we're at the beginning of a new frame. - * End of frame detection is better implemented by checking the EOF - * bit (FID bit toggling is delayed by one frame compared to the EOF - * bit), but some devices don't set the bit at end of frame (and the - * last payload can be lost anyway). We thus must check if the FID has - * been toggled. - * - * stream->last_fid is initialized to -1, so the first isochronous - * frame will never trigger an end of frame detection. - * - * Empty buffers (bytesused == 0) don't trigger end of frame detection - * as it doesn't make sense to return an empty buffer. This also - * avoids detecting end of frame conditions at FID toggling if the - * previous payload had the EOF bit set. - */ - if (fid != stream->last_fid && buf->bytesused != 0) { - uvc_dbg(stream->dev, FRAME, - "Frame complete (FID bit toggled)\n"); - buf->state = UVC_BUF_STATE_READY; - return -EAGAIN; - } - stream->last_fid = fid; - return data[0]; + return header_len; } static inline enum dma_data_direction uvc_stream_dir( diff --git a/drivers/media/usb/uvc/uvcvideo.h b/drivers/media/usb/uvc/uvcvideo.h index be4b746d902c..2dd8d04589ab 100644 --- a/drivers/media/usb/uvc/uvcvideo.h +++ b/drivers/media/usb/uvc/uvcvideo.h @@ -212,6 +212,10 @@ #define UVC_QUIRK_FORCE_Y8 0x00000800 #define UVC_QUIRK_FORCE_BPP 0x00001000 #define UVC_QUIRK_WAKE_AUTOSUSPEND 0x00002000 +#define UVC_QUIRK_NO_RESET_RESUME 0x00004000 +#define UVC_QUIRK_DISABLE_AUTOSUSPEND 0x00008000 +#define UVC_QUIRK_INVALID_DEVICE_SOF 0x00010000 +#define UVC_QUIRK_MJPEG_NO_EOF 0x00020000 /* Format flags */ #define UVC_FMT_FLAG_COMPRESSED 0x00000001 diff --git a/drivers/media/v4l2-core/v4l2-ctrls-request.c b/drivers/media/v4l2-core/v4l2-ctrls-request.c index 7d098f287fd9..00fcaea45d07 100644 --- a/drivers/media/v4l2-core/v4l2-ctrls-request.c +++ b/drivers/media/v4l2-core/v4l2-ctrls-request.c @@ -348,13 +348,12 @@ void v4l2_ctrl_request_complete(struct media_request *req, ret = v4l2_ctrl_handler_init(hdl, (main_hdl->nr_of_buckets - 1) * 8); if (!ret) ret = v4l2_ctrl_request_bind(req, hdl, main_hdl); - if (ret) { - v4l2_ctrl_handler_free(hdl); - kfree(hdl); - return; - } + if (ret) + goto error; hdl->request_is_queued = true; obj = media_request_object_find(req, &req_ops, main_hdl); + if (!obj) + goto error; } hdl = container_of(obj, struct v4l2_ctrl_handler, req_obj); @@ -389,6 +388,11 @@ void v4l2_ctrl_request_complete(struct media_request *req, mutex_unlock(main_hdl->lock); media_request_object_complete(obj); media_request_object_put(obj); + return; + +error: + v4l2_ctrl_handler_free(hdl); + kfree(hdl); } EXPORT_SYMBOL(v4l2_ctrl_request_complete); diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index 1f5a95d19d9f..3c461e3fc8b8 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -342,6 +342,7 @@ static void fastrpc_channel_ctx_free(struct kref *ref) cctx = container_of(ref, struct fastrpc_channel_ctx, refcount); + idr_destroy(&cctx->ctx_idr); kfree(cctx); } @@ -1275,7 +1276,7 @@ static int fastrpc_device_open(struct inode *inode, struct file *filp) dev_err(&cctx->rpdev->dev, "No session available\n"); mutex_destroy(&fl->mutex); kfree(fl); - + fastrpc_channel_ctx_put(cctx); return -EBUSY; } diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c index 7e309270ddd4..e890b5ec6a72 100644 --- a/drivers/mtd/mtdswap.c +++ b/drivers/mtd/mtdswap.c @@ -125,6 +125,7 @@ struct mtdswap_dev { char *page_buf; char *oob_buf; + struct dentry *debugfs_stats; }; struct mtdswap_oobdata { @@ -1263,7 +1264,8 @@ static int mtdswap_add_debugfs(struct mtdswap_dev *d) if (IS_ERR_OR_NULL(root)) return -1; - debugfs_create_file("mtdswap_stats", S_IRUSR, root, d, &mtdswap_fops); + d->debugfs_stats = debugfs_create_file("mtdswap_stats", 0400, root, + d, &mtdswap_fops); return 0; } @@ -1464,6 +1466,7 @@ static void mtdswap_remove_dev(struct mtd_blktrans_dev *dev) { struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev); + debugfs_remove(d->debugfs_stats); del_mtd_blktrans_dev(dev); mtdswap_cleanup(d); kfree(d); diff --git a/drivers/mtd/nand/raw/mtk_ecc.c b/drivers/mtd/nand/raw/mtk_ecc.c index ec9d1fb07006..ec10e942bed2 100644 --- a/drivers/mtd/nand/raw/mtk_ecc.c +++ b/drivers/mtd/nand/raw/mtk_ecc.c @@ -116,8 +116,8 @@ static int mt7622_ecc_regs[] = { [ECC_DECIRQ_STA] = 0x144, }; -static inline void mtk_ecc_wait_idle(struct mtk_ecc *ecc, - enum mtk_ecc_operation op) +static inline int mtk_ecc_wait_idle(struct mtk_ecc *ecc, + enum mtk_ecc_operation op) { struct device *dev = ecc->dev; u32 val; @@ -129,6 +129,8 @@ static inline void mtk_ecc_wait_idle(struct mtk_ecc *ecc, if (ret) dev_warn(dev, "%s NOT idle\n", op == ECC_ENCODE ? "encoder" : "decoder"); + + return ret; } static irqreturn_t mtk_ecc_irq(int irq, void *id) @@ -302,7 +304,11 @@ int mtk_ecc_enable(struct mtk_ecc *ecc, struct mtk_ecc_config *config) return ret; } - mtk_ecc_wait_idle(ecc, op); + ret = mtk_ecc_wait_idle(ecc, op); + if (ret) { + mutex_unlock(&ecc->lock); + return ret; + } ret = mtk_ecc_config(ecc, config); if (ret) { @@ -402,7 +408,9 @@ int mtk_ecc_encode(struct mtk_ecc *ecc, struct mtk_ecc_config *config, if (ret) goto timeout; - mtk_ecc_wait_idle(ecc, ECC_ENCODE); + ret = mtk_ecc_wait_idle(ecc, ECC_ENCODE); + if (ret) + goto timeout; /* Program ECC bytes to OOB: per sector oob = FDM + ECC + SPARE */ len = (config->strength * ecc->caps->parity_bits + 7) >> 3; diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c index 7091b018078b..4be2afd98ce1 100644 --- a/drivers/net/bonding/bond_alb.c +++ b/drivers/net/bonding/bond_alb.c @@ -1499,8 +1499,8 @@ void bond_alb_monitor(struct work_struct *work) struct bonding *bond = container_of(work, struct bonding, alb_work.work); struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond)); + struct slave *slave, *curr; struct list_head *iter; - struct slave *slave; if (!bond_has_slaves(bond)) { atomic_set(&bond_info->tx_rebalance_counter, 0); @@ -1562,9 +1562,11 @@ void bond_alb_monitor(struct work_struct *work) * because a slave was disabled then * it can now leave promiscuous mode. */ - dev_set_promiscuity(rtnl_dereference(bond->curr_active_slave)->dev, - -1); - bond_info->primary_is_promisc = 0; + curr = rtnl_dereference(bond->curr_active_slave); + if (bond_info->primary_is_promisc && curr) { + dev_set_promiscuity(curr->dev, -1); + bond_info->primary_is_promisc = 0; + } rtnl_unlock(); rcu_read_lock(); diff --git a/drivers/net/can/c_can/c_can_main.c b/drivers/net/can/c_can/c_can_main.c index 875ac76bc5fd..6ea2b365214a 100644 --- a/drivers/net/can/c_can/c_can_main.c +++ b/drivers/net/can/c_can/c_can_main.c @@ -599,20 +599,20 @@ static int c_can_chip_config(struct net_device *dev) return err; /* enable automatic retransmission */ - priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_ENABLE_AR); + priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_ENABLE_AR | CONTROL_INIT); if ((priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) && (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK)) { /* loopback + silent mode : useful for hot self-test */ - priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_TEST); + priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_TEST | CONTROL_INIT); priv->write_reg(priv, C_CAN_TEST_REG, TEST_LBACK | TEST_SILENT); } else if (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK) { /* loopback mode : useful for self-test function */ - priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_TEST); + priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_TEST | CONTROL_INIT); priv->write_reg(priv, C_CAN_TEST_REG, TEST_LBACK); } else if (priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) { /* silent mode : bus-monitoring mode */ - priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_TEST); + priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_TEST | CONTROL_INIT); priv->write_reg(priv, C_CAN_TEST_REG, TEST_SILENT); } diff --git a/drivers/net/can/softing/softing_fw.c b/drivers/net/can/softing/softing_fw.c index 32286f861a19..6776577a0bba 100644 --- a/drivers/net/can/softing/softing_fw.c +++ b/drivers/net/can/softing/softing_fw.c @@ -91,12 +91,12 @@ int softing_bootloader_command(struct softing *card, int16_t cmd, return ret; } -static int fw_parse(const uint8_t **pmem, uint16_t *ptype, uint32_t *paddr, - uint16_t *plen, const uint8_t **pdat) +static int fw_parse(const u8 **pmem, const u8 *limit, u16 *ptype, + u32 *paddr, u16 *plen, const u8 **pdat) { uint16_t checksum[2]; - const uint8_t *mem; - const uint8_t *end; + const u8 *mem; + const u8 *record_end; /* * firmware records are a binary, unaligned stream composed of: @@ -114,14 +114,21 @@ static int fw_parse(const uint8_t **pmem, uint16_t *ptype, uint32_t *paddr, * endianness & alignment. */ mem = *pmem; + /* A record needs an 8-byte prefix and a 2-byte checksum. */ + if (mem > limit || limit - mem < 10) + return -EINVAL; + *ptype = le16_to_cpup((void *)&mem[0]); *paddr = le32_to_cpup((void *)&mem[2]); *plen = le16_to_cpup((void *)&mem[6]); + if (*plen > limit - mem - 10) + return -EINVAL; + *pdat = &mem[8]; /* verify checksum */ - end = &mem[8 + *plen]; - checksum[0] = le16_to_cpup((void *)end); - for (checksum[1] = 0; mem < end; ++mem) + record_end = &mem[8 + *plen]; + checksum[0] = le16_to_cpup((void *)record_end); + for (checksum[1] = 0; mem < record_end; ++mem) checksum[1] += *mem; if (checksum[0] != checksum[1]) return -EINVAL; @@ -139,6 +146,7 @@ int softing_load_fw(const char *file, struct softing *card, uint16_t type, len; uint32_t addr; uint8_t *buf = NULL, *new_buf; + s64 dpram_offset; int buflen = 0; int8_t type_end = 0; @@ -153,7 +161,7 @@ int softing_load_fw(const char *file, struct softing *card, mem = fw->data; end = &mem[fw->size]; /* look for header record */ - ret = fw_parse(&mem, &type, &addr, &len, &dat); + ret = fw_parse(&mem, end, &type, &addr, &len, &dat); if (ret < 0) goto failed; if (type != 0xffff) @@ -164,7 +172,7 @@ int softing_load_fw(const char *file, struct softing *card, } /* ok, we had a header */ while (mem < end) { - ret = fw_parse(&mem, &type, &addr, &len, &dat); + ret = fw_parse(&mem, end, &type, &addr, &len, &dat); if (ret < 0) goto failed; if (type == 3) { @@ -179,9 +187,13 @@ int softing_load_fw(const char *file, struct softing *card, goto failed; } - if ((addr + len + offset) > size) + dpram_offset = (s64)addr + offset; + if (dpram_offset < 0 || dpram_offset > size || + len > size - dpram_offset) { + ret = -EINVAL; goto failed; - memcpy_toio(&dpram[addr + offset], dat, len); + } + memcpy_toio(&dpram[dpram_offset], dat, len); /* be sure to flush caches from IO space */ mb(); if (len > buflen) { @@ -195,7 +207,7 @@ int softing_load_fw(const char *file, struct softing *card, buf = new_buf; } /* verify record data */ - memcpy_fromio(buf, &dpram[addr + offset], len); + memcpy_fromio(buf, &dpram[dpram_offset], len); if (memcmp(buf, dat, len)) { /* is not ok */ dev_alert(&card->pdev->dev, "DPRAM readback failed\n"); @@ -237,7 +249,7 @@ int softing_load_app_fw(const char *file, struct softing *card) mem = fw->data; end = &mem[fw->size]; /* look for header record */ - ret = fw_parse(&mem, &type, &addr, &len, &dat); + ret = fw_parse(&mem, end, &type, &addr, &len, &dat); if (ret) goto failed; ret = -EINVAL; @@ -253,7 +265,7 @@ int softing_load_app_fw(const char *file, struct softing *card) } /* ok, we had a header */ while (mem < end) { - ret = fw_parse(&mem, &type, &addr, &len, &dat); + ret = fw_parse(&mem, end, &type, &addr, &len, &dat); if (ret) goto failed; @@ -279,6 +291,12 @@ int softing_load_app_fw(const char *file, struct softing *card) /* work in 16bit (target) */ sum &= 0xffff; + if (card->pdat->app.offs > card->dpram_size || + len > card->dpram_size - card->pdat->app.offs) { + ret = -EINVAL; + goto failed; + } + memcpy_toio(&card->dpram[card->pdat->app.offs], dat, len); iowrite32(card->pdat->app.offs + card->pdat->app.addr, &card->dpram[DPRAM_COMMAND + 2]); diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index f7339926a97d..153d16165743 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -408,6 +408,40 @@ static void ems_usb_rx_err(struct ems_usb *dev, struct ems_cpc_msg *msg) netif_rx(skb); } +static bool ems_usb_rx_msg_len_valid(struct ems_cpc_msg *msg) +{ + size_t len = msg->length; + size_t can_len; + + switch (msg->type) { + case CPC_MSG_TYPE_CAN_STATE: + return len >= sizeof(msg->msg.can_state); + + case CPC_MSG_TYPE_CAN_FRAME: + case CPC_MSG_TYPE_EXT_CAN_FRAME: + case CPC_MSG_TYPE_RTR_FRAME: + case CPC_MSG_TYPE_EXT_RTR_FRAME: + if (len < CPC_CAN_MSG_MIN_SIZE) + return false; + + if (msg->type == CPC_MSG_TYPE_RTR_FRAME || + msg->type == CPC_MSG_TYPE_EXT_RTR_FRAME) + return true; + + can_len = can_cc_dlc2len(msg->msg.can_msg.length & 0xf); + return len >= CPC_CAN_MSG_MIN_SIZE + can_len; + + case CPC_MSG_TYPE_CAN_FRAME_ERROR: + return len >= sizeof(msg->msg.error); + + case CPC_MSG_TYPE_OVERRUN: + return len >= sizeof(msg->msg.overrun); + + default: + return true; + } +} + /* * callback for bulk IN urb */ @@ -450,6 +484,15 @@ static void ems_usb_read_bulk_callback(struct urb *urb) } msg = (struct ems_cpc_msg *)&ibuf[start]; + if (msg->length > + urb->actual_length - start - CPC_MSG_HEADER_LEN) { + netdev_err(netdev, "format error\n"); + break; + } + if (!ems_usb_rx_msg_len_valid(msg)) { + netdev_err(netdev, "format error\n"); + break; + } switch (msg->type) { case CPC_MSG_TYPE_CAN_STATE: diff --git a/drivers/net/can/usb/etas_es58x/es58x_core.c b/drivers/net/can/usb/etas_es58x/es58x_core.c index 263317810fe7..175ac5dd88cf 100644 --- a/drivers/net/can/usb/etas_es58x/es58x_core.c +++ b/drivers/net/can/usb/etas_es58x/es58x_core.c @@ -1481,7 +1481,6 @@ static void es58x_read_bulk_callback(struct urb *urb) dev_err_ratelimited(dev, "Failed resubmitting read bulk urb: %pe\n", ERR_PTR(ret)); - return; free_urb: usb_free_coherent(urb->dev, urb->transfer_buffer_length, diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c index 684c9685ba61..eca340a5312f 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c @@ -1601,6 +1601,7 @@ static int kvaser_usb_hydra_get_busparams(struct kvaser_usb_net_priv *priv, reinit_completion(&priv->get_busparams_comp); err = kvaser_usb_send_cmd(dev, cmd, cmd_len); + kfree(cmd); if (err) return err; diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c index b6cef22a53e7..c1a2905f4b53 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -616,13 +616,22 @@ static int kvaser_usb_leaf_wait_cmd(const struct kvaser_usb *dev, u8 id, continue; } - if (pos + tmp->len > actual_len) { + if (tmp->len < CMD_HEADER_LEN || + tmp->len > actual_len - pos) { dev_err_ratelimited(&dev->intf->dev, "Format error\n"); break; } if (tmp->id == id) { + if (tmp->len > sizeof(*cmd)) { + dev_err_ratelimited(&dev->intf->dev, + "Received command %u too large (%u)\n", + tmp->id, tmp->len); + err = -EIO; + goto end; + } + memcpy(cmd, tmp, tmp->len); goto end; } @@ -1573,7 +1582,7 @@ static void kvaser_usb_leaf_read_bulk_callback(struct kvaser_usb *dev, continue; } - if (pos + cmd->len > len) { + if (cmd->len < CMD_HEADER_LEN || cmd->len > len - pos) { dev_err_ratelimited(&dev->intf->dev, "Format error\n"); break; } diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c index 11ca70173fb5..4c9f55c6210c 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c @@ -463,7 +463,6 @@ static int peak_usb_start(struct peak_usb_device *dev) netif_device_detach(dev->netdev); usb_unanchor_urb(urb); - kfree(buf); usb_free_urb(urb); break; } diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c index 185f5a98d217..824340dddbad 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c @@ -502,6 +502,13 @@ static int pcan_usb_fd_decode_canmsg(struct pcan_usb_fd_if *usb_if, dev->can.ctrlmode); } + if (!(rx_msg_flags & PUCAN_MSG_RTR) && + le16_to_cpu(rx_msg->size) - offsetof(struct pucan_rx_msg, d) < + cfd->len) { + kfree_skb(skb); + return -EBADMSG; + } + cfd->can_id = le32_to_cpu(rm->can_id); if (rx_msg_flags & PUCAN_MSG_EXT_ID) @@ -650,6 +657,24 @@ static void pcan_usb_fd_decode_ts(struct pcan_usb_fd_if *usb_if, peak_usb_set_ts_now(&usb_if->time_ref, le32_to_cpu(ts->ts_low)); } +static size_t pcan_usb_fd_rx_msg_min_size(u16 rx_msg_type) +{ + switch (rx_msg_type) { + case PUCAN_MSG_CAN_RX: + return offsetof(struct pucan_rx_msg, d); + case PCAN_UFD_MSG_CALIBRATION: + return sizeof(struct pcan_ufd_ts_msg); + case PUCAN_MSG_ERROR: + return sizeof(struct pucan_error_msg); + case PUCAN_MSG_STATUS: + return sizeof(struct pucan_status_msg); + case PCAN_UFD_MSG_OVERRUN: + return sizeof(struct pcan_ufd_ovr_msg); + default: + return sizeof(struct pucan_msg); + } +} + /* callback for bulk IN urb */ static int pcan_usb_fd_decode_buf(struct peak_usb_device *dev, struct urb *urb) { @@ -664,6 +689,12 @@ static int pcan_usb_fd_decode_buf(struct peak_usb_device *dev, struct urb *urb) msg_end = urb->transfer_buffer + urb->actual_length; for (; msg_ptr < msg_end;) { u16 rx_msg_type, rx_msg_size; + size_t rx_msg_min_size; + + if (msg_end - msg_ptr < sizeof(*rx_msg)) { + err = -EBADMSG; + break; + } rx_msg = (struct pucan_msg *)msg_ptr; if (!rx_msg->size) { @@ -675,13 +706,20 @@ static int pcan_usb_fd_decode_buf(struct peak_usb_device *dev, struct urb *urb) rx_msg_type = le16_to_cpu(rx_msg->type); /* check if the record goes out of current packet */ - if (msg_ptr + rx_msg_size > msg_end) { + if (rx_msg_size > msg_end - msg_ptr) { netdev_err(netdev, "got frag rec: should inc usb rx buf sze\n"); err = -EBADMSG; break; } + rx_msg_min_size = pcan_usb_fd_rx_msg_min_size(rx_msg_type); + if (rx_msg_size < rx_msg_min_size) { + netdev_err(netdev, "got short rec\n"); + err = -EBADMSG; + break; + } + switch (rx_msg_type) { case PUCAN_MSG_CAN_RX: err = pcan_usb_fd_decode_canmsg(usb_if, rx_msg); diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c index f6d19879bf40..94da0b2649f3 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_pro.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_pro.c @@ -520,12 +520,18 @@ static int pcan_usb_pro_handle_canmsg(struct pcan_usb_pro_interface *usb_if, struct pcan_usb_pro_rxmsg *rx) { const unsigned int ctrl_idx = (rx->len >> 4) & 0x0f; - struct peak_usb_device *dev = usb_if->dev[ctrl_idx]; - struct net_device *netdev = dev->netdev; + struct peak_usb_device *dev; + struct net_device *netdev; struct can_frame *can_frame; struct sk_buff *skb; struct skb_shared_hwtstamps *hwts; + if (ctrl_idx >= ARRAY_SIZE(usb_if->dev)) + return -EINVAL; + + dev = usb_if->dev[ctrl_idx]; + netdev = dev->netdev; + skb = alloc_can_skb(netdev, &can_frame); if (!skb) return -ENOMEM; @@ -557,14 +563,20 @@ static int pcan_usb_pro_handle_error(struct pcan_usb_pro_interface *usb_if, { const u16 raw_status = le16_to_cpu(er->status); const unsigned int ctrl_idx = (er->channel >> 4) & 0x0f; - struct peak_usb_device *dev = usb_if->dev[ctrl_idx]; - struct net_device *netdev = dev->netdev; + struct peak_usb_device *dev; + struct net_device *netdev; struct can_frame *can_frame; enum can_state new_state = CAN_STATE_ERROR_ACTIVE; u8 err_mask = 0; struct sk_buff *skb; struct skb_shared_hwtstamps *hwts; + if (ctrl_idx >= ARRAY_SIZE(usb_if->dev)) + return -EINVAL; + + dev = usb_if->dev[ctrl_idx]; + netdev = dev->netdev; + /* nothing should be sent while in BUS_OFF state */ if (dev->can.state == CAN_STATE_BUS_OFF) return 0; diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c index ebb8b3e5b9a8..01c37ffc9ceb 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c @@ -364,9 +364,14 @@ static void xgbe_an37_set(struct xgbe_prv_data *pdata, bool enable, XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_CTRL1, reg); - reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_PCS_DIG_CTRL); - reg |= XGBE_VEND2_MAC_AUTO_SW; - XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_PCS_DIG_CTRL, reg); + if (pdata->an_mode == XGBE_AN_MODE_CL37_SGMII) { + reg = XMDIO_READ(pdata, MDIO_MMD_VEND2, MDIO_PCS_DIG_CTRL); + if (enable) + reg |= XGBE_VEND2_MAC_AUTO_SW; + else + reg &= ~XGBE_VEND2_MAC_AUTO_SW; + XMDIO_WRITE(pdata, MDIO_MMD_VEND2, MDIO_PCS_DIG_CTRL, reg); + } } static void xgbe_an37_restart(struct xgbe_prv_data *pdata) diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c index 5a85999987b5..4063d4a6f47e 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c @@ -565,15 +565,29 @@ int aq_ring_rx_fill(struct aq_ring_s *self) void aq_ring_rx_deinit(struct aq_ring_s *self) { - if (!self) + unsigned int i; + + if (!self || !self->buff_ring) return; - for (; self->sw_head != self->sw_tail; - self->sw_head = aq_ring_next_dx(self, self->sw_head)) { - struct aq_ring_buff_s *buff = &self->buff_ring[self->sw_head]; + /* Release every page still owned by the ring. + * + * Walking [sw_head, sw_tail) is not enough: refill is batched + * (aq_ring_rx_fill() waits for AQ_CFG_RX_REFILL_THRES free slots), + * so slots that were cleaned but not yet reposted accumulate in the + * [sw_tail, sw_head) gap, and they keep their page for reuse. Walk + * the whole ring and release whatever is left. + */ + for (i = 0; i < self->size; i++) { + struct aq_ring_buff_s *buff = &self->buff_ring[i]; + + if (!buff->rxdata.page) + continue; aq_free_rxpage(&buff->rxdata, aq_nic_get_dev(self->aq_nic)); } + + self->sw_head = self->sw_tail; } void aq_ring_free(struct aq_ring_s *self) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 79aa239fa7cc..0b435bd3db9d 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -3600,7 +3600,17 @@ static int bnxt_init_one_rx_ring(struct bnxt *bp, int ring_nr) if ((bp->flags & BNXT_FLAG_AGG_RINGS)) { type = ((u32)BNXT_RX_PAGE_SIZE << RX_BD_LEN_SHIFT) | - RX_BD_TYPE_RX_AGG_BD | RX_BD_FLAGS_SOP; + RX_BD_TYPE_RX_AGG_BD; + + /* Disable EOP if TPA is enabled to prevent overlapping zero + * padding with the next segment's data. On P7_PLUS, EOP will + * automatically disable Relaxed Ordering (RO) to prevent + * potential data corruption (and may degrade performance). On + * older chips, RO will not be automatically disabled and may + * cause corruption. + */ + if (!(bp->flags & BNXT_FLAG_TPA)) + type |= RX_BD_FLAGS_AGG_EOP; bnxt_init_rxbd_pages(ring, type); } diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 56aae0d654e8..1f844798abc4 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -103,6 +103,7 @@ struct rx_bd { #define RX_BD_TYPE_48B_BD_SIZE (2 << 4) #define RX_BD_TYPE_64B_BD_SIZE (3 << 4) #define RX_BD_FLAGS_SOP (1 << 6) + #define RX_BD_FLAGS_AGG_EOP (1 << 6) #define RX_BD_FLAGS_EOP (1 << 7) #define RX_BD_FLAGS_BUFFERS (3 << 8) #define RX_BD_FLAGS_1_BUFFER_PACKET (0 << 8) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c index 328ae267eba5..e337e78c0036 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c @@ -375,12 +375,15 @@ static int bnxt_ptp_enable(struct ptp_clock_info *ptp_info, return rc; case PTP_CLK_REQ_PPS: /* Configure PHC PPS IN */ - rc = bnxt_ptp_cfg_pin(bp, 0, BNXT_PPS_PIN_PPS_IN); + pin_id = 0; + if (!on) + break; + rc = bnxt_ptp_cfg_pin(bp, pin_id, BNXT_PPS_PIN_PPS_IN); if (rc) return rc; rc = bnxt_ptp_cfg_event(bp, BNXT_PPS_EVENT_INTERNAL); if (!rc) - ptp->pps_info.pins[0].event = BNXT_PPS_EVENT_INTERNAL; + ptp->pps_info.pins[pin_id].event = BNXT_PPS_EVENT_INTERNAL; return rc; default: netdev_err(ptp->bp->dev, "Unrecognized PIN function\n"); diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c index 0439bf465fa5..b21be20dcf85 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c @@ -4248,9 +4248,8 @@ static int dpaa2_eth_connect_mac(struct dpaa2_eth_priv *priv) err = dpaa2_mac_open(mac); if (err) goto err_free_mac; - priv->mac = mac; - if (dpaa2_eth_is_type_phy(priv)) { + if (dpaa2_mac_is_type_phy(mac)) { err = dpaa2_mac_connect(mac); if (err && err != -EPROBE_DEFER) netdev_err(priv->net_dev, "Error connecting to the MAC endpoint: %pe", @@ -4259,11 +4258,12 @@ static int dpaa2_eth_connect_mac(struct dpaa2_eth_priv *priv) goto err_close_mac; } + priv->mac = mac; + return 0; err_close_mac: dpaa2_mac_close(mac); - priv->mac = NULL; err_free_mac: kfree(mac); out_put_device: @@ -4273,15 +4273,19 @@ static int dpaa2_eth_connect_mac(struct dpaa2_eth_priv *priv) static void dpaa2_eth_disconnect_mac(struct dpaa2_eth_priv *priv) { - if (dpaa2_eth_is_type_phy(priv)) - dpaa2_mac_disconnect(priv->mac); + struct dpaa2_mac *mac = priv->mac; - if (!dpaa2_eth_has_mac(priv)) + priv->mac = NULL; + + if (!mac) return; - dpaa2_mac_close(priv->mac); - kfree(priv->mac); - priv->mac = NULL; + if (dpaa2_mac_is_type_phy(mac)) + dpaa2_mac_disconnect(mac); + + dpaa2_mac_close(mac); + put_device(&mac->mc_dev->dev); + kfree(mac); } static irqreturn_t dpni_irq0_handler_thread(int irq_num, void *arg) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c index ea93144d2493..4d596af27dc0 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c @@ -1510,6 +1510,7 @@ static void dpaa2_switch_port_disconnect_mac(struct ethsw_port_priv *port_priv) dpaa2_mac_disconnect(mac); dpaa2_mac_close(mac); + put_device(&mac->mc_dev->dev); kfree(mac); } diff --git a/drivers/net/ethernet/google/gve/gve.h b/drivers/net/ethernet/google/gve/gve.h index 822bdaff66f6..75773524ba81 100644 --- a/drivers/net/ethernet/google/gve/gve.h +++ b/drivers/net/ethernet/google/gve/gve.h @@ -10,6 +10,7 @@ #include #include #include +#include #include #include "gve_desc.h" @@ -35,6 +36,7 @@ /* Interval to schedule a stats report update, 20000ms. */ #define GVE_STATS_REPORT_TIMER_PERIOD 20000 +#define GVE_RX_NAPI_RESCHED_MS 20 /* msecs */ /* Numbers of NIC tx/rx stats in stats report. */ #define NIC_TX_STATS_REPORT_NUM 0 @@ -218,6 +220,7 @@ struct gve_rx_ring { struct u64_stats_sync statss; /* sync stats for 32bit archs */ struct gve_rx_ctx ctx; /* Info for packet currently being processed in this ring. */ + struct timer_list starvation_timer; /* for queue starvation recovery */ }; /* A TX desc ring entry */ diff --git a/drivers/net/ethernet/google/gve/gve_main.c b/drivers/net/ethernet/google/gve/gve_main.c index a8fb51e77fea..38333731f5d0 100644 --- a/drivers/net/ethernet/google/gve/gve_main.c +++ b/drivers/net/ethernet/google/gve/gve_main.c @@ -508,6 +508,9 @@ static void gve_remove_napi(struct gve_priv *priv, int ntfy_idx) { struct gve_notify_block *block = &priv->ntfy_blocks[ntfy_idx]; + if (block->rx && !gve_is_gqi(priv)) + timer_shutdown_sync(&block->rx->starvation_timer); + netif_napi_del(&block->napi); } diff --git a/drivers/net/ethernet/google/gve/gve_rx_dqo.c b/drivers/net/ethernet/google/gve/gve_rx_dqo.c index 8756f9cbd631..c9bc85293c27 100644 --- a/drivers/net/ethernet/google/gve/gve_rx_dqo.c +++ b/drivers/net/ethernet/google/gve/gve_rx_dqo.c @@ -16,6 +16,16 @@ #include #include +static void gve_rx_starvation_timer(struct timer_list *t) +{ + struct gve_rx_ring *rx = from_timer(rx, t, starvation_timer); + struct gve_priv *priv = rx->gve; + struct gve_notify_block *block; + + block = &priv->ntfy_blocks[rx->ntfy_id]; + napi_schedule(&block->napi); +} + static int gve_buf_ref_cnt(struct gve_rx_buf_state_dqo *bs) { return page_count(bs->page_info.page) - bs->page_info.pagecnt_bias; @@ -185,6 +195,7 @@ static void gve_rx_free_ring_dqo(struct gve_priv *priv, int idx) completion_queue_slots = rx->dqo.complq.mask + 1; buffer_queue_slots = rx->dqo.bufq.mask + 1; + timer_shutdown_sync(&rx->starvation_timer); gve_rx_remove_from_block(priv, idx); if (rx->q_resources) { @@ -237,6 +248,7 @@ static int gve_rx_alloc_ring_dqo(struct gve_priv *priv, int idx) memset(rx, 0, sizeof(*rx)); rx->gve = priv; rx->q_num = idx; + timer_setup(&rx->starvation_timer, gve_rx_starvation_timer, 0); rx->dqo.bufq.mask = buffer_queue_slots - 1; rx->dqo.complq.num_free_slots = completion_queue_slots; rx->dqo.complq.mask = completion_queue_slots - 1; @@ -334,6 +346,7 @@ void gve_rx_post_buffers_dqo(struct gve_rx_ring *rx) struct gve_rx_compl_queue_dqo *complq = &rx->dqo.complq; struct gve_rx_buf_queue_dqo *bufq = &rx->dqo.bufq; struct gve_priv *priv = rx->gve; + u32 num_bufs_avail_to_hw; u32 num_avail_slots; u32 num_full_slots; u32 num_posted = 0; @@ -374,6 +387,26 @@ void gve_rx_post_buffers_dqo(struct gve_rx_ring *rx) } rx->fill_cnt += num_posted; + + /* If the queue has fewer than GVE_RX_BUF_THRESH_DQO descriptors + * visible to the hardware, the hardware is in danger of starving + * and cannot trigger interrupts. + * + * We use a threshold of 32 because a single maximum-sized RSC + * packet can consume up to 19 descriptors in the Rx path. Lower + * thresholds (e.g., 8 or 16) would be unsafe as they could cause + * the device to drop/stall on a maximum-sized RSC packet. + * + * Start the timer to periodically reschedule NAPI and recover. + */ + num_bufs_avail_to_hw = + ((bufq->tail & ~(GVE_RX_BUF_THRESH_DQO - 1)) - + bufq->head) & bufq->mask; + + if (num_bufs_avail_to_hw < GVE_RX_BUF_THRESH_DQO) { + mod_timer(&rx->starvation_timer, + jiffies + msecs_to_jiffies(GVE_RX_NAPI_RESCHED_MS)); + } } static void gve_try_recycle_buf(struct gve_priv *priv, struct gve_rx_ring *rx, diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c index 2bda22965195..dcee8cc9a525 100644 --- a/drivers/net/ethernet/hisilicon/hip04_eth.c +++ b/drivers/net/ethernet/hisilicon/hip04_eth.c @@ -594,7 +594,11 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget) skb = build_skb(buf, priv->rx_buf_size); if (unlikely(!skb)) { net_dbg_ratelimited("build_skb failed\n"); - goto refill; + /* Retain the slot; return budget so NAPI retries this + * buffer. Refill would overwrite rx_buf[]/rx_phys[] + * and leak them. + */ + return budget; } dma_unmap_single(priv->dev, priv->rx_phys[priv->rx_head], @@ -622,14 +626,15 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget) rx++; } -refill: buf = netdev_alloc_frag(priv->rx_buf_size); if (!buf) goto done; phys = dma_map_single(priv->dev, buf, RX_BUF_SIZE, DMA_FROM_DEVICE); - if (dma_mapping_error(priv->dev, phys)) + if (dma_mapping_error(priv->dev, phys)) { + skb_free_frag(buf); goto done; + } priv->rx_buf[priv->rx_head] = buf; priv->rx_phys[priv->rx_head] = phys; hip04_set_recv_desc(priv, phys); diff --git a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c index b981b6cbe6ff..7ecc3333c8df 100644 --- a/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c +++ b/drivers/net/ethernet/hisilicon/hix5hd2_gmac.c @@ -1288,7 +1288,6 @@ static int hix5hd2_dev_remove(struct platform_device *pdev) struct net_device *ndev = platform_get_drvdata(pdev); struct hix5hd2_priv *priv = netdev_priv(ndev); - netif_napi_del(&priv->napi); unregister_netdev(ndev); mdiobus_unregister(priv->bus); mdiobus_free(priv->bus); diff --git a/drivers/net/ethernet/huawei/hinic/hinic_dev.h b/drivers/net/ethernet/huawei/hinic/hinic_dev.h index a4fbf44f944c..46b24f3c5e16 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_dev.h +++ b/drivers/net/ethernet/huawei/hinic/hinic_dev.h @@ -100,8 +100,6 @@ struct hinic_dev { u16 num_rss; u16 rss_limit; struct hinic_rss_type rss_type; - u8 *rss_hkey_user; - s32 *rss_indir_user; struct hinic_intr_coal_info *rx_intr_coalesce; struct hinic_intr_coal_info *tx_intr_coalesce; struct hinic_sriov_info sriov_info; diff --git a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c index b431c300ef1b..2ed258558b2b 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_ethtool.c @@ -1060,17 +1060,6 @@ static int __set_rss_rxfh(struct net_device *netdev, int err; if (indir) { - if (!nic_dev->rss_indir_user) { - nic_dev->rss_indir_user = - kzalloc(sizeof(u32) * HINIC_RSS_INDIR_SIZE, - GFP_KERNEL); - if (!nic_dev->rss_indir_user) - return -ENOMEM; - } - - memcpy(nic_dev->rss_indir_user, indir, - sizeof(u32) * HINIC_RSS_INDIR_SIZE); - err = hinic_rss_set_indir_tbl(nic_dev, nic_dev->rss_tmpl_idx, indir); if (err) @@ -1078,16 +1067,6 @@ static int __set_rss_rxfh(struct net_device *netdev, } if (key) { - if (!nic_dev->rss_hkey_user) { - nic_dev->rss_hkey_user = - kzalloc(HINIC_RSS_KEY_SIZE * 2, GFP_KERNEL); - - if (!nic_dev->rss_hkey_user) - return -ENOMEM; - } - - memcpy(nic_dev->rss_hkey_user, key, HINIC_RSS_KEY_SIZE); - err = hinic_rss_set_template_tbl(nic_dev, nic_dev->rss_tmpl_idx, key); if (err) diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c index e7e7b6255ddf..1166a61e5c82 100644 --- a/drivers/net/ethernet/intel/e1000/e1000_main.c +++ b/drivers/net/ethernet/intel/e1000/e1000_main.c @@ -1228,11 +1228,11 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (hw->flash_address) iounmap(hw->flash_address); +err_mdio_ioremap: kfree(adapter->tx_ring); kfree(adapter->rx_ring); err_dma: err_sw_init: -err_mdio_ioremap: iounmap(hw->ce4100_gbe_mdio_base_virt); iounmap(hw->hw_addr); err_ioremap: diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index 4d7aa49b7c14..bff6df1b656c 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -391,7 +391,7 @@ static u64 ice_ptp_extend_40b_ts(struct ice_pf *pf, u64 in_tstamp) { const u64 mask = GENMASK_ULL(31, 0); - return ice_ptp_extend_32b_ts(pf->ptp.cached_phc_time, + return ice_ptp_extend_32b_ts(READ_ONCE(pf->ptp.cached_phc_time), (in_tstamp >> 8) & mask); } diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index ebd6d464fa0c..fdfd0cbd9e5c 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -2203,8 +2203,6 @@ static inline int igbvf_tx_map_adv(struct igbvf_adapter *adapter, buffer_info->time_stamp = 0; buffer_info->length = 0; buffer_info->mapped_as_page = false; - if (count) - count--; /* clear timestamp and dma mappings for remaining portion of packet */ while (count--) { diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c index 87e41b9a0ce6..b7d528cf3432 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_flows.c @@ -151,6 +151,7 @@ int otx2_alloc_mcam_entries(struct otx2_nic *pfvf, u16 count) if (allocated) { pfvf->flags |= OTX2_FLAG_MCAM_ENTRIES_ALLOC; pfvf->flags |= OTX2_FLAG_NTUPLE_SUPPORT; + pfvf->flags |= OTX2_FLAG_TC_FLOWER_SUPPORT; } if (allocated != count) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c index 9d39b9fc2f6a..a8a97197d6b7 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c @@ -849,8 +849,8 @@ static void otx2_handle_link_event(struct otx2_nic *pf) netif_carrier_on(netdev); netif_tx_start_all_queues(netdev); } else { - netif_tx_stop_all_queues(netdev); netif_carrier_off(netdev); + netif_tx_stop_all_queues(netdev); } } diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c index 26231c59b024..d40346dc2dce 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c @@ -105,10 +105,12 @@ static void otx2_get_egress_burst_cfg(struct otx2_nic *nic, u32 burst, if (burst) { *burst_exp = ilog2(burst) ? ilog2(burst) - 1 : 0; tmp = burst - rounddown_pow_of_two(burst); - if (burst < max_mantissa) + if (burst <= max_mantissa) { *burst_mantissa = tmp * 2; - else + } else { + WARN_ON(*burst_exp < 7); *burst_mantissa = tmp / (1ULL << (*burst_exp - 7)); + } } else { *burst_exp = MAX_BURST_EXPONENT; *burst_mantissa = max_mantissa; diff --git a/drivers/net/ethernet/marvell/prestera/prestera_pci.c b/drivers/net/ethernet/marvell/prestera/prestera_pci.c index 6bef633aa633..94bcae9020eb 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_pci.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_pci.c @@ -616,6 +616,9 @@ static int prestera_fw_hdr_parse(struct prestera_fw *fw) struct prestera_fw_header *hdr; u32 magic; + if (fw->bin->size < sizeof(*hdr)) + return -EINVAL; + hdr = (struct prestera_fw_header *)fw->bin->data; magic = be32_to_cpu(hdr->magic_number); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c index 1779ff98b589..3c0e27eb0198 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c @@ -1036,13 +1036,11 @@ struct mlx5_fw_tracer *mlx5_fw_tracer_create(struct mlx5_core_dev *dev) tracer = kvzalloc(sizeof(*tracer), GFP_KERNEL); if (!tracer) - return ERR_PTR(-ENOMEM); + return NULL; tracer->work_queue = create_singlethread_workqueue("mlx5_fw_tracer"); - if (!tracer->work_queue) { - err = -ENOMEM; + if (!tracer->work_queue) goto free_tracer; - } tracer->dev = dev; @@ -1082,7 +1080,7 @@ struct mlx5_fw_tracer *mlx5_fw_tracer_create(struct mlx5_core_dev *dev) destroy_workqueue(tracer->work_queue); free_tracer: kvfree(tracer); - return ERR_PTR(err); + return NULL; } static int fw_tracer_event(struct notifier_block *nb, unsigned long action, void *data); @@ -1093,7 +1091,7 @@ int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer) struct mlx5_core_dev *dev; int err; - if (IS_ERR_OR_NULL(tracer)) + if (!tracer) return 0; dev = tracer->dev; @@ -1136,7 +1134,7 @@ int mlx5_fw_tracer_init(struct mlx5_fw_tracer *tracer) /* Stop tracer + Cleanup HW resources */ void mlx5_fw_tracer_cleanup(struct mlx5_fw_tracer *tracer) { - if (IS_ERR_OR_NULL(tracer)) + if (!tracer) return; mlx5_core_dbg(tracer->dev, "FWTracer: Cleanup, is owner ? (%d)\n", @@ -1155,7 +1153,7 @@ void mlx5_fw_tracer_cleanup(struct mlx5_fw_tracer *tracer) /* Free software resources (Buffers, etc ..) */ void mlx5_fw_tracer_destroy(struct mlx5_fw_tracer *tracer) { - if (IS_ERR_OR_NULL(tracer)) + if (!tracer) return; mlx5_core_dbg(tracer->dev, "FWTracer: Destroy\n"); @@ -1204,7 +1202,7 @@ int mlx5_fw_tracer_reload(struct mlx5_fw_tracer *tracer) struct mlx5_core_dev *dev; int err; - if (IS_ERR_OR_NULL(tracer)) + if (!tracer) return 0; dev = tracer->dev; diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c index dae944d28ee2..4be89f0d020e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c @@ -158,6 +158,13 @@ static int mlx5e_dcbnl_ieee_getets(struct net_device *netdev, } memcpy(ets->tc_tsa, priv->dcbx.tc_tsa, sizeof(ets->tc_tsa)); + /* Report 0 for non ETS TSA */ + for (i = 0; i < ets->ets_cap; i++) { + if (ets->tc_tx_bw[i] == MLX5E_MAX_BW_ALLOC && + priv->dcbx.tc_tsa[i] != IEEE_8021QAZ_TSA_ETS) + ets->tc_tx_bw[i] = 0; + } + return err; } @@ -302,6 +309,14 @@ static int mlx5e_dbcnl_validate_ets(struct net_device *netdev, } } + for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { + if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_CB_SHAPER) { + netdev_err(netdev, + "Failed to validate ETS: CB Shaper is not supported\n"); + return -EOPNOTSUPP; + } + } + /* Validate Bandwidth Sum */ for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS) { diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/helper.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/helper.c index 45b839116212..61d299f8ca25 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/helper.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/acl/helper.c @@ -70,7 +70,7 @@ int esw_egress_acl_vlan_create(struct mlx5_eswitch *esw, flow_act.action = flow_action; vport->egress.allowed_vlan = mlx5_add_flow_rules(vport->egress.acl, spec, - &flow_act, fwd_dest, 0); + &flow_act, fwd_dest, fwd_dest ? 1 : 0); if (IS_ERR(vport->egress.allowed_vlan)) { err = PTR_ERR(vport->egress.allowed_vlan); esw_warn(esw->dev, diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c index ce7492a6a98f..908d99f398b8 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_resource.c @@ -96,6 +96,9 @@ static int nfp_cpp_resource_find(struct nfp_cpp *cpp, struct nfp_resource *res) res->mutex = nfp_cpp_mutex_alloc(cpp, NFP_RESOURCE_TBL_TARGET, addr, key); + if (!res->mutex) + return -ENOMEM; + res->cpp_id = NFP_CPP_ID(entry.region.cpp_target, entry.region.cpp_action, entry.region.cpp_token); diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c index e7be0710220e..dcde28af8a0d 100644 --- a/drivers/net/ethernet/nvidia/forcedeth.c +++ b/drivers/net/ethernet/nvidia/forcedeth.c @@ -6190,10 +6190,10 @@ static void nv_remove(struct pci_dev *pci_dev) struct net_device *dev = pci_get_drvdata(pci_dev); struct fe_priv *np = netdev_priv(dev); - free_percpu(np->txrx_stats); - unregister_netdev(dev); + free_percpu(np->txrx_stats); + nv_restore_mac_addr(pci_dev); /* restore any phy related changes */ diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c index 0d5e96a3b9a2..5dd642647071 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_main.c +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c @@ -108,7 +108,7 @@ static void qede_remove(struct pci_dev *pdev); static void qede_shutdown(struct pci_dev *pdev); static void qede_link_update(void *dev, struct qed_link_output *link); static void qede_schedule_recovery_handler(void *dev); -static void qede_recovery_handler(struct qede_dev *edev); +static bool qede_recovery_handler(struct qede_dev *edev); static void qede_schedule_hw_err_handler(void *dev, enum qed_hw_err_type err_type); static void qede_get_eth_tlv_data(void *edev, void *data); @@ -992,21 +992,6 @@ void __qede_unlock(struct qede_dev *edev) mutex_unlock(&edev->qede_lock); } -/* This version of the lock should be used when acquiring the RTNL lock is also - * needed in addition to the internal qede lock. - */ -static void qede_lock(struct qede_dev *edev) -{ - rtnl_lock(); - __qede_lock(edev); -} - -static void qede_unlock(struct qede_dev *edev) -{ - __qede_unlock(edev); - rtnl_unlock(); -} - static void qede_periodic_task(struct work_struct *work) { struct qede_dev *edev = container_of(work, struct qede_dev, @@ -1043,6 +1028,8 @@ static void qede_sp_task(struct work_struct *work) */ if (test_and_clear_bit(QEDE_SP_RECOVERY, &edev->sp_flags)) { + bool reloaded; + cancel_delayed_work_sync(&edev->periodic_task); #ifdef CONFIG_QED_SRIOV /* SRIOV must be disabled outside the lock to avoid a deadlock. @@ -1051,9 +1038,17 @@ static void qede_sp_task(struct work_struct *work) if (pci_num_vf(edev->pdev)) qede_sriov_configure(edev->pdev, 0); #endif - qede_lock(edev); - qede_recovery_handler(edev); - qede_unlock(edev); + rtnl_lock(); + __qede_lock(edev); + reloaded = qede_recovery_handler(edev); + __qede_unlock(edev); + + /* The udp_tunnel core synchronously calls back into + * qede_udp_tunnel_sync(), which takes the qede lock. + */ + if (reloaded) + udp_tunnel_nic_reset_ntf(edev->ndev); + rtnl_unlock(); } __qede_lock(edev); @@ -2596,9 +2591,13 @@ static void qede_recovery_failed(struct qede_dev *edev) edev->ops->common->set_power_state(edev->cdev, PCI_D3hot); } -static void qede_recovery_handler(struct qede_dev *edev) +/* Returns true if an open device was successfully reloaded and its + * udp_tunnel ports need to be re-synced by the caller. + */ +static bool qede_recovery_handler(struct qede_dev *edev) { u32 curr_state = edev->state; + bool reloaded = false; int rc; DP_NOTICE(edev, "Starting a recovery process\n"); @@ -2628,17 +2627,18 @@ static void qede_recovery_handler(struct qede_dev *edev) goto err; qede_config_rx_mode(edev->ndev); - udp_tunnel_nic_reset_ntf(edev->ndev); + reloaded = true; } edev->state = curr_state; DP_NOTICE(edev, "Recovery handling is done\n"); - return; + return reloaded; err: qede_recovery_failed(edev); + return false; } static void qede_atomic_hw_err_handler(struct qede_dev *edev) diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c index 1fe687b594f9..f453c546478a 100644 --- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c +++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_main.c @@ -599,14 +599,13 @@ static int init_dma_desc_rings(struct net_device *netd) return 0; -txalloc_err: - while (queue_num--) - free_tx_ring(priv->device, priv->txq[queue_num], tx_rsize); - return ret; - rxalloc_err: while (queue_num--) free_rx_ring(priv->device, priv->rxq[queue_num], rx_rsize); + queue_num = SXGBE_TX_QUEUES; +txalloc_err: + while (queue_num--) + free_tx_ring(priv->device, priv->txq[queue_num], tx_rsize); return ret; } @@ -1078,7 +1077,9 @@ static int sxgbe_open(struct net_device *dev) priv->dma_buf_sz = SXGBE_ALIGN(DMA_BUFFER_SIZE); priv->tx_tc = TC_DEFAULT; priv->rx_tc = TC_DEFAULT; - init_dma_desc_rings(dev); + ret = init_dma_desc_rings(dev); + if (ret) + goto init_phy_error; /* DMA initialization and SW reset */ ret = sxgbe_init_dma_engine(priv); @@ -1187,6 +1188,7 @@ static int sxgbe_open(struct net_device *dev) init_error: free_dma_desc_resources(priv); +init_phy_error: if (dev->phydev) phy_disconnect(dev->phydev); phy_error: diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 1a74437787c0..5946e1decd9c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -175,11 +175,14 @@ struct stmmac_flow_entry { /* Rx Frame Steering */ enum stmmac_rfs_type { STMMAC_RFS_T_VLAN, + STMMAC_RFS_T_LLDP, + STMMAC_RFS_T_1588, STMMAC_RFS_T_MAX, }; struct stmmac_rfs_entry { unsigned long cookie; + u16 etype; int in_use; int type; int tc; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c index 5520f5a5391c..b31d2a86057a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c @@ -237,6 +237,8 @@ static int tc_rfs_init(struct stmmac_priv *priv) int i; priv->rfs_entries_max[STMMAC_RFS_T_VLAN] = 8; + priv->rfs_entries_max[STMMAC_RFS_T_LLDP] = 1; + priv->rfs_entries_max[STMMAC_RFS_T_1588] = 1; for (i = 0; i < STMMAC_RFS_T_MAX; i++) priv->rfs_entries_total += priv->rfs_entries_max[i]; @@ -453,6 +455,9 @@ static int tc_parse_flow_actions(struct stmmac_priv *priv, return 0; } +#define ETHER_TYPE_FULL_MASK cpu_to_be16(~0) +#define IP_PROTO_FULL_MASK 0xFF + static int tc_add_basic_flow(struct stmmac_priv *priv, struct flow_cls_offload *cls, struct stmmac_flow_entry *entry) @@ -466,6 +471,38 @@ static int tc_add_basic_flow(struct stmmac_priv *priv, return -EINVAL; flow_rule_match_basic(rule, &match); + + /* Both network proto and transport proto not present in the key */ + if (!match.mask || !(match.mask->n_proto || match.mask->ip_proto)) { + NL_SET_ERR_MSG_MOD(cls->common.extack, + "filter must specify network or transport protocol"); + return -EOPNOTSUPP; + } + + /* If the proto is present in the key and is not full mask */ + if ((match.mask->n_proto && match.mask->n_proto != ETHER_TYPE_FULL_MASK) || + (match.mask->ip_proto && match.mask->ip_proto != IP_PROTO_FULL_MASK)) { + NL_SET_ERR_MSG_MOD(cls->common.extack, + "only full protocol mask is supported"); + return -EOPNOTSUPP; + } + + /* Network proto is present in the key and is not IPv4 */ + if (match.mask->n_proto && match.key->n_proto != cpu_to_be16(ETH_P_IP)) { + NL_SET_ERR_MSG_MOD(cls->common.extack, + "only IPv4 network protocol is supported"); + return -EOPNOTSUPP; + } + + /* Transport proto is present in the key and is not TCP or UDP */ + if (match.mask->ip_proto && + match.key->ip_proto != IPPROTO_TCP && + match.key->ip_proto != IPPROTO_UDP) { + NL_SET_ERR_MSG_MOD(cls->common.extack, + "only TCP and UDP transport protocols are supported"); + return -EOPNOTSUPP; + } + entry->ip_proto = match.key->ip_proto; return 0; } @@ -603,6 +640,8 @@ static int tc_add_flow(struct stmmac_priv *priv, ret = tc_flow_parsers[i].fn(priv, cls, entry); if (!ret) entry->in_use = true; + else if (ret == -EOPNOTSUPP) + return ret; } if (!entry->in_use) @@ -632,6 +671,7 @@ static int tc_del_flow(struct stmmac_priv *priv, entry->in_use = false; entry->cookie = 0; entry->is_l4 = false; + entry->action = 0; return ret; } @@ -726,6 +766,114 @@ static int tc_del_vlan_flow(struct stmmac_priv *priv, return 0; } +static int tc_add_ethtype_flow(struct stmmac_priv *priv, + struct flow_cls_offload *cls) +{ + struct stmmac_rfs_entry *entry = tc_find_rfs(priv, cls, false); + struct flow_rule *rule = flow_cls_offload_flow_rule(cls); + struct flow_dissector *dissector = rule->match.dissector; + int tc = tc_classid_to_hwtc(priv->dev, cls->classid); + struct flow_match_basic match; + + if (!entry) { + entry = tc_find_rfs(priv, cls, true); + if (!entry) + return -ENOENT; + } + + /* Nothing to do here */ + if (!dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_BASIC)) + return -EINVAL; + + if (tc < 0) { + netdev_err(priv->dev, "Invalid traffic class\n"); + return -EINVAL; + } + + flow_rule_match_basic(rule, &match); + + if (match.mask->n_proto) { + u16 etype = ntohs(match.key->n_proto); + + if (match.mask->n_proto != ETHER_TYPE_FULL_MASK) { + netdev_err(priv->dev, "Only full mask is supported for EthType filter"); + return -EINVAL; + } + switch (etype) { + case ETH_P_LLDP: + if (priv->rfs_entries_cnt[STMMAC_RFS_T_LLDP] >= + priv->rfs_entries_max[STMMAC_RFS_T_LLDP]) + return -ENOENT; + + entry->type = STMMAC_RFS_T_LLDP; + priv->rfs_entries_cnt[STMMAC_RFS_T_LLDP]++; + + stmmac_rx_queue_routing(priv, priv->hw, + PACKET_DCBCPQ, tc); + break; + case ETH_P_1588: + if (priv->rfs_entries_cnt[STMMAC_RFS_T_1588] >= + priv->rfs_entries_max[STMMAC_RFS_T_1588]) + return -ENOENT; + + entry->type = STMMAC_RFS_T_1588; + priv->rfs_entries_cnt[STMMAC_RFS_T_1588]++; + + stmmac_rx_queue_routing(priv, priv->hw, + PACKET_PTPQ, tc); + break; + default: + netdev_err(priv->dev, "EthType(0x%x) is not supported", etype); + return -EINVAL; + } + + entry->in_use = true; + entry->cookie = cls->cookie; + entry->tc = tc; + entry->etype = etype; + + return 0; + } + + return -EINVAL; +} + +static int tc_del_ethtype_flow(struct stmmac_priv *priv, + struct flow_cls_offload *cls) +{ + struct stmmac_rfs_entry *entry = tc_find_rfs(priv, cls, false); + + if (!entry || !entry->in_use || + entry->type < STMMAC_RFS_T_LLDP || + entry->type > STMMAC_RFS_T_1588) + return -ENOENT; + + switch (entry->etype) { + case ETH_P_LLDP: + stmmac_rx_queue_routing(priv, priv->hw, + PACKET_DCBCPQ, 0); + priv->rfs_entries_cnt[STMMAC_RFS_T_LLDP]--; + break; + case ETH_P_1588: + stmmac_rx_queue_routing(priv, priv->hw, + PACKET_PTPQ, 0); + priv->rfs_entries_cnt[STMMAC_RFS_T_1588]--; + break; + default: + netdev_err(priv->dev, "EthType(0x%x) is not supported", + entry->etype); + return -EINVAL; + } + + entry->in_use = false; + entry->cookie = 0; + entry->tc = 0; + entry->etype = 0; + entry->type = 0; + + return 0; +} + static int tc_add_flow_cls(struct stmmac_priv *priv, struct flow_cls_offload *cls) { @@ -735,6 +883,10 @@ static int tc_add_flow_cls(struct stmmac_priv *priv, if (!ret) return ret; + ret = tc_add_ethtype_flow(priv, cls); + if (!ret) + return ret; + return tc_add_vlan_flow(priv, cls); } @@ -747,6 +899,10 @@ static int tc_del_flow_cls(struct stmmac_priv *priv, if (!ret) return ret; + ret = tc_del_ethtype_flow(priv, cls); + if (!ret) + return ret; + return tc_del_vlan_flow(priv, cls); } diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index c51b39390c01..c9bd3b0f29a9 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -1754,6 +1754,9 @@ static int geneve_changelink(struct net_device *dev, struct nlattr *tb[], struct geneve_config cfg; int err; + if (!rtnl_dev_link_net_capable(dev, geneve->net)) + return -EPERM; + /* If the geneve device is configured for metadata (or externally * controlled, for example, OVS), then nothing can be changed. */ diff --git a/drivers/net/macsec.c b/drivers/net/macsec.c index 9b0cb7850738..5de940761ebf 100644 --- a/drivers/net/macsec.c +++ b/drivers/net/macsec.c @@ -662,7 +662,7 @@ static struct sk_buff *macsec_encrypt(struct sk_buff *skb, } unprotected_len = skb->len; - eth = eth_hdr(skb); + eth = skb_eth_hdr(skb); sci_present = send_sci(secy); hh = skb_push(skb, macsec_extra_len(sci_present)); memmove(hh, eth, 2 * ETH_ALEN); diff --git a/drivers/net/phy/phylink.c b/drivers/net/phy/phylink.c index 514e7f9e0339..84e3953090be 100644 --- a/drivers/net/phy/phylink.c +++ b/drivers/net/phy/phylink.c @@ -857,8 +857,8 @@ struct phylink *phylink_create(struct phylink_config *config, } else if (config->type == PHYLINK_DEV) { pl->dev = config->dev; } else { - kfree(pl); - return ERR_PTR(-EINVAL); + ret = -EINVAL; + goto free_pl; } pl->phy_state.interface = iface; @@ -881,28 +881,29 @@ struct phylink *phylink_create(struct phylink_config *config, phylink_validate(pl, pl->supported, &pl->link_config); ret = phylink_parse_mode(pl, fwnode); - if (ret < 0) { - kfree(pl); - return ERR_PTR(ret); - } + if (ret < 0) + goto free_pl; if (pl->cfg_link_an_mode == MLO_AN_FIXED) { ret = phylink_parse_fixedlink(pl, fwnode); - if (ret < 0) { - kfree(pl); - return ERR_PTR(ret); - } + if (ret < 0) + goto release_link_gpio; } pl->cur_link_an_mode = pl->cfg_link_an_mode; ret = phylink_register_sfp(pl, fwnode); - if (ret < 0) { - kfree(pl); - return ERR_PTR(ret); - } + if (ret < 0) + goto release_link_gpio; return pl; + +release_link_gpio: + if (pl->link_gpio) + gpiod_put(pl->link_gpio); +free_pl: + kfree(pl); + return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(phylink_create); diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index 8c28292ed33c..4c4dc817bc70 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -191,6 +191,7 @@ struct channel { struct list_head clist; /* link in list of channels per unit */ rwlock_t upl; /* protects `ppp' and 'bridge' */ struct channel __rcu *bridge; /* "bridged" ppp channel */ + struct rcu_head rcu; /* for RCU-deferred free of the channel */ #ifdef CONFIG_PPP_MULTILINK u8 avail; /* flag used in multilink stuff */ u8 had_frag; /* >= 1 fragments have been sent */ @@ -3554,6 +3555,18 @@ ppp_disconnect_channel(struct channel *pch) return err; } +/* Purge after the grace period: a late ppp_input() may still queue an + * skb on pch->file.rq before the last RCU reader drains. + */ +static void ppp_release_channel_free(struct rcu_head *rcu) +{ + struct channel *pch = container_of(rcu, struct channel, rcu); + + skb_queue_purge(&pch->file.xq); + skb_queue_purge(&pch->file.rq); + kfree(pch); +} + /* * Free up the resources used by a ppp channel. */ @@ -3569,9 +3582,7 @@ static void ppp_destroy_channel(struct channel *pch) pr_err("ppp: destroying undead channel %p !\n", pch); return; } - skb_queue_purge(&pch->file.xq); - skb_queue_purge(&pch->file.rq); - kfree(pch); + call_rcu(&pch->rcu, ppp_release_channel_free); } static void __exit ppp_cleanup(void) @@ -3584,6 +3595,7 @@ static void __exit ppp_cleanup(void) device_destroy(ppp_class, MKDEV(PPP_MAJOR, 0)); class_destroy(ppp_class); unregister_pernet_device(&ppp_net_ops); + rcu_barrier(); /* wait for RCU callbacks before module unload */ } /* diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c index 6ce4265d84f2..374548a6a010 100644 --- a/drivers/net/ppp/pppoe.c +++ b/drivers/net/ppp/pppoe.c @@ -899,6 +899,7 @@ static int pppoe_sendmsg(struct socket *sock, struct msghdr *m, dev_hard_header(skb, dev, ETH_P_PPP_SES, po->pppoe_pa.remote, NULL, total_len); + ph = pppoe_hdr(skb); memcpy(ph, &hdr, sizeof(struct pppoe_hdr)); ph->length = htons(total_len); diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c index 2a3892528ec3..062c20214dac 100644 --- a/drivers/net/slip/slip.c +++ b/drivers/net/slip/slip.c @@ -693,6 +693,8 @@ static void slip_receive_buf(struct tty_struct *tty, const unsigned char *cp, if (!sl || sl->magic != SLIP_MAGIC || !netif_running(sl->dev)) return; + spin_lock_bh(&sl->lock); + /* Read the characters out of the buffer */ while (count--) { if (fp && *fp++) { @@ -708,6 +710,8 @@ static void slip_receive_buf(struct tty_struct *tty, const unsigned char *cp, #endif slip_unesc(sl, *cp++); } + + spin_unlock_bh(&sl->lock); } /************************************ diff --git a/drivers/net/thunderbolt.c b/drivers/net/thunderbolt.c index ba9f7062f5a7..53d56cc860cd 100644 --- a/drivers/net/thunderbolt.c +++ b/drivers/net/thunderbolt.c @@ -373,11 +373,16 @@ static void tbnet_tear_down(struct tbnet *net, bool send_logout) break; } - tb_ring_stop(net->rx_ring.ring); - tb_ring_stop(net->tx_ring.ring); - tbnet_free_buffers(&net->rx_ring); - tbnet_free_buffers(&net->tx_ring); - + /* Tear the paths down before stopping the rings. This mirrors + * tbnet_connected_work(), which enables the paths last so the + * Rx ring is primed before packets can arrive. Stopping a + * ring zeroes its descriptor base and tbnet_free_buffers() + * unmaps and frees the frame buffers, leaving anything still + * in flight with nowhere to drain to; + * __tb_path_deactivate_hop() then waits for the hop's + * 'pending' bit, which on some host routers never clears in + * that state. + */ ret = tb_xdomain_disable_paths(net->xd, net->local_transmit_path, net->tx_ring.ring->hop, @@ -386,6 +391,11 @@ static void tbnet_tear_down(struct tbnet *net, bool send_logout) if (ret) netdev_warn(net->dev, "failed to disable DMA paths\n"); + tb_ring_stop(net->rx_ring.ring); + tb_ring_stop(net->tx_ring.ring); + tbnet_free_buffers(&net->rx_ring); + tbnet_free_buffers(&net->tx_ring); + tb_xdomain_release_in_hopid(net->xd, net->remote_transmit_path); net->remote_transmit_path = 0; } diff --git a/drivers/net/vmxnet3/vmxnet3_drv.c b/drivers/net/vmxnet3/vmxnet3_drv.c index 269e0bf1301a..ce8d10a75408 100644 --- a/drivers/net/vmxnet3/vmxnet3_drv.c +++ b/drivers/net/vmxnet3/vmxnet3_drv.c @@ -1319,7 +1319,11 @@ vmxnet3_get_hdr_len(struct vmxnet3_adapter *adapter, struct sk_buff *skb, struct ipv6hdr *ipv6; struct tcphdr *tcp; } hdr; - BUG_ON(gdesc->rcd.tcp == 0); + + /* v4/v6/tcp then describe the inner header, which we can't locate. */ + if ((le32_to_cpu(gdesc->dword[0]) & (1UL << VMXNET3_RCD_HDR_INNER_SHIFT)) || + gdesc->rcd.tcp == 0) + return 0; maplen = skb_headlen(skb); if (unlikely(sizeof(struct iphdr) + sizeof(struct tcphdr) > maplen)) @@ -1333,15 +1337,21 @@ vmxnet3_get_hdr_len(struct vmxnet3_adapter *adapter, struct sk_buff *skb, hdr.eth = eth_hdr(skb); if (gdesc->rcd.v4) { - BUG_ON(hdr.eth->h_proto != htons(ETH_P_IP) && - hdr.veth->h_vlan_encapsulated_proto != htons(ETH_P_IP)); + if (hdr.eth->h_proto != htons(ETH_P_IP) && + hdr.veth->h_vlan_encapsulated_proto != htons(ETH_P_IP)) + return 0; + hdr.ptr += hlen; - BUG_ON(hdr.ipv4->protocol != IPPROTO_TCP); + if (hdr.ipv4->protocol != IPPROTO_TCP) + return 0; + hlen = hdr.ipv4->ihl << 2; hdr.ptr += hdr.ipv4->ihl << 2; } else if (gdesc->rcd.v6) { - BUG_ON(hdr.eth->h_proto != htons(ETH_P_IPV6) && - hdr.veth->h_vlan_encapsulated_proto != htons(ETH_P_IPV6)); + if (hdr.eth->h_proto != htons(ETH_P_IPV6) && + hdr.veth->h_vlan_encapsulated_proto != htons(ETH_P_IPV6)) + return 0; + hdr.ptr += hlen; /* Use an estimated value, since we also need to handle * TSO case. diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c index 7967b429dfcf..a4e911386a4e 100644 --- a/drivers/net/vxlan/vxlan_core.c +++ b/drivers/net/vxlan/vxlan_core.c @@ -2240,7 +2240,7 @@ static bool route_shortcircuit(struct net_device *dev, struct sk_buff *skb) { struct iphdr *pip; - if (!pskb_may_pull(skb, sizeof(struct iphdr))) + if (!pskb_network_may_pull(skb, sizeof(struct iphdr))) return false; pip = ip_hdr(skb); n = neigh_lookup(&arp_tbl, &pip->daddr, dev); @@ -2266,7 +2266,7 @@ static bool route_shortcircuit(struct net_device *dev, struct sk_buff *skb) */ if (!ipv6_stub->nd_tbl) return false; - if (!pskb_may_pull(skb, sizeof(struct ipv6hdr))) + if (!pskb_network_may_pull(skb, sizeof(struct ipv6hdr))) return false; pip6 = ipv6_hdr(skb); n = neigh_lookup(ipv6_stub->nd_tbl, &pip6->daddr, dev); @@ -2288,13 +2288,19 @@ static bool route_shortcircuit(struct net_device *dev, struct sk_buff *skb) } if (n) { + u8 haddr[ETH_ALEN]; bool diff; - diff = !ether_addr_equal(eth_hdr(skb)->h_dest, n->ha); + neigh_ha_snapshot(haddr, n, dev); + diff = !ether_addr_equal_unaligned(eth_hdr(skb)->h_dest, haddr); if (diff) { + if (skb_cow_head(skb, 0)) { + neigh_release(n); + return false; + } memcpy(eth_hdr(skb)->h_source, eth_hdr(skb)->h_dest, dev->addr_len); - memcpy(eth_hdr(skb)->h_dest, n->ha, dev->addr_len); + memcpy(eth_hdr(skb)->h_dest, haddr, dev->addr_len); } neigh_release(n); return diff; @@ -2941,6 +2947,7 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev) (ntohs(eth->h_proto) == ETH_P_IP || ntohs(eth->h_proto) == ETH_P_IPV6)) { did_rsc = route_shortcircuit(dev, skb); + eth = eth_hdr(skb); if (did_rsc) f = vxlan_find_mac(vxlan, eth->h_dest, vni); } @@ -4259,6 +4266,9 @@ static int vxlan_changelink(struct net_device *dev, struct nlattr *tb[], struct vxlan_rdst *dst; int err; + if (!rtnl_dev_link_net_capable(dev, vxlan->net)) + return -EPERM; + dst = &vxlan->default_dst; err = vxlan_nl2conf(tb, data, dev, &conf, true, extack); if (err) @@ -4309,7 +4319,7 @@ static int vxlan_changelink(struct net_device *dev, struct nlattr *tb[], spin_unlock_bh(&vxlan->hash_lock[hash_index]); } - if (conf.age_interval != vxlan->cfg.age_interval) + if (netif_running(dev) && conf.age_interval != vxlan->cfg.age_interval) mod_timer(&vxlan->age_timer, jiffies); netdev_adjacent_change_commit(dst->remote_dev, lowerdev, dev); diff --git a/drivers/net/wan/wanxl.c b/drivers/net/wan/wanxl.c index 5a9e262188ef..c38dd741401e 100644 --- a/drivers/net/wan/wanxl.c +++ b/drivers/net/wan/wanxl.c @@ -514,7 +514,8 @@ static void wanxl_pci_remove_one(struct pci_dev *pdev) if (card->irq) free_irq(card->irq, card); - wanxl_reset(card); + if (card->plx) + wanxl_reset(card); for (i = 0; i < RX_QUEUE_LENGTH; i++) if (card->rx_skbs[i]) { diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c index 318c3bfd45fd..c075ab493456 100644 --- a/drivers/net/wireless/ath/ath11k/dp_rx.c +++ b/drivers/net/wireless/ath/ath11k/dp_rx.c @@ -4470,6 +4470,9 @@ static void ath11k_hal_rx_msdu_list_get(struct ath11k *ar, msdu_details = &msdu_link->msdu_link[0]; for (i = 0; i < HAL_RX_NUM_MSDU_DESC; i++) { + if (!i && FIELD_GET(BUFFER_ADDR_INFO0_ADDR, + msdu_details[i].buf_addr_info.info0) == 0) + break; if (FIELD_GET(BUFFER_ADDR_INFO0_ADDR, msdu_details[i].buf_addr_info.info0) == 0) { msdu_desc_info = &msdu_details[i - 1].rx_msdu_info; diff --git a/drivers/net/wireless/ath/ath6kl/txrx.c b/drivers/net/wireless/ath/ath6kl/txrx.c index b22ed499f7ba..5be0c62ec019 100644 --- a/drivers/net/wireless/ath/ath6kl/txrx.c +++ b/drivers/net/wireless/ath/ath6kl/txrx.c @@ -1722,13 +1722,15 @@ void aggr_recv_addba_req_evt(struct ath6kl_vif *vif, u8 tid_mux, u16 seq_no, rxtid = &aggr_conn->rx_tid[tid]; - if (win_sz < AGGR_WIN_SZ_MIN || win_sz > AGGR_WIN_SZ_MAX) - ath6kl_dbg(ATH6KL_DBG_WLAN_RX, "%s: win_sz %d, tid %d\n", - __func__, win_sz, tid); - if (rxtid->aggr) aggr_delete_tid_state(aggr_conn, tid); + if (win_sz < AGGR_WIN_SZ_MIN || win_sz > AGGR_WIN_SZ_MAX) { + ath6kl_dbg(ATH6KL_DBG_WLAN_RX, "%s: win_sz %d, tid %d\n", + __func__, win_sz, tid); + return; + } + rxtid->seq_next = seq_no; hold_q_size = TID_WINDOW_SZ(win_sz) * sizeof(struct skb_hold_q); rxtid->hold_q = kzalloc(hold_q_size, GFP_KERNEL); diff --git a/drivers/net/wireless/ath/ath6kl/wmi.c b/drivers/net/wireless/ath/ath6kl/wmi.c index bd1ef6334997..bae12143eebb 100644 --- a/drivers/net/wireless/ath/ath6kl/wmi.c +++ b/drivers/net/wireless/ath/ath6kl/wmi.c @@ -484,6 +484,18 @@ static int ath6kl_wmi_tx_complete_event_rx(u8 *datap, int len) evt = (struct wmi_tx_complete_event *) datap; + if (len < sizeof(*evt)) { + ath6kl_dbg(ATH6KL_DBG_WMI, "tx complete: invalid len %d\n", + len); + return -EINVAL; + } + + if (len < sizeof(*evt) + evt->num_msg * sizeof(struct tx_complete_msg_v1)) { + ath6kl_dbg(ATH6KL_DBG_WMI, "tx complete: invalid len %d for %u msgs\n", + len, evt->num_msg); + return -EINVAL; + } + ath6kl_dbg(ATH6KL_DBG_WMI, "comp: %d %d %d\n", evt->num_msg, evt->msg_len, evt->msg_type); @@ -862,6 +874,14 @@ static int ath6kl_wmi_connect_event_rx(struct wmi *wmi, u8 *datap, int len, ev = (struct wmi_connect_event *) datap; + if (len < sizeof(*ev) + ev->beacon_ie_len + + ev->assoc_req_len + ev->assoc_resp_len) { + ath6kl_dbg(ATH6KL_DBG_WMI, + "connect event: IE lengths %u+%u+%u exceed buffer %d\n", + ev->beacon_ie_len, ev->assoc_req_len, + ev->assoc_resp_len, len); + return -EINVAL; + } if (vif->nw_type == AP_NETWORK) { /* AP mode start/STA connected event */ struct net_device *dev = vif->ndev; diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c index 6c73c0c0b82a..7650f14dca8d 100644 --- a/drivers/net/wireless/ath/ath9k/hif_usb.c +++ b/drivers/net/wireless/ath/ath9k/hif_usb.c @@ -1227,15 +1227,10 @@ static int ath9k_hif_request_firmware(struct hif_device_usb *hif_dev, ret = request_firmware_nowait(THIS_MODULE, true, hif_dev->fw_name, &hif_dev->udev->dev, GFP_KERNEL, hif_dev, ath9k_hif_usb_firmware_cb); - if (ret) { + if (ret) dev_err(&hif_dev->udev->dev, "ath9k_htc: Async request for firmware %s failed\n", hif_dev->fw_name); - return ret; - } - - dev_info(&hif_dev->udev->dev, "ath9k_htc: Firmware %s requested\n", - hif_dev->fw_name); return ret; } diff --git a/drivers/net/wireless/ath/carl9170/rx.c b/drivers/net/wireless/ath/carl9170/rx.c index 908c4c8b7f82..bda30b1f9404 100644 --- a/drivers/net/wireless/ath/carl9170/rx.c +++ b/drivers/net/wireless/ath/carl9170/rx.c @@ -150,7 +150,8 @@ static void carl9170_cmd_callback(struct ar9170 *ar, u32 len, void *buffer) spin_lock(&ar->cmd_lock); if (ar->readbuf) { if (len >= 4) - memcpy(ar->readbuf, buffer + 4, len - 4); + memcpy(ar->readbuf, buffer + 4, + min_t(u32, len - 4, ar->readlen)); ar->readbuf = NULL; } @@ -917,7 +918,9 @@ static void carl9170_rx_stream(struct ar9170 *ar, void *buf, unsigned int len) } } - skb_put_data(ar->rx_failover, tbuf, tlen); + skb_put_data(ar->rx_failover, tbuf, + min_t(unsigned int, tlen, + ar->rx_failover_missing)); ar->rx_failover_missing -= tlen; if (ar->rx_failover_missing <= 0) { diff --git a/drivers/net/wireless/ath/carl9170/tx.c b/drivers/net/wireless/ath/carl9170/tx.c index f9e1306ac74f..db49f334e52e 100644 --- a/drivers/net/wireless/ath/carl9170/tx.c +++ b/drivers/net/wireless/ath/carl9170/tx.c @@ -692,7 +692,7 @@ void carl9170_tx_process_status(struct ar9170 *ar, unsigned int i; for (i = 0; i < cmd->hdr.ext; i++) { - if (WARN_ON(i > ((cmd->hdr.len / 2) + 1))) { + if (WARN_ON(i >= (cmd->hdr.len / 2))) { print_hex_dump_bytes("UU:", DUMP_PREFIX_NONE, (void *) cmd, cmd->hdr.len + 4); break; diff --git a/drivers/net/wireless/atmel/at76c50x-usb.c b/drivers/net/wireless/atmel/at76c50x-usb.c index 26953dcffe19..c4b4ae66ee58 100644 --- a/drivers/net/wireless/atmel/at76c50x-usb.c +++ b/drivers/net/wireless/atmel/at76c50x-usb.c @@ -1527,13 +1527,16 @@ static inline int at76_guess_freq(struct at76_priv *priv) if (ieee80211_is_probe_resp(hdr->frame_control)) { el_off = offsetof(struct ieee80211_mgmt, u.probe_resp.variable); - el = ((struct ieee80211_mgmt *)hdr)->u.probe_resp.variable; } else if (ieee80211_is_beacon(hdr->frame_control)) { el_off = offsetof(struct ieee80211_mgmt, u.beacon.variable); - el = ((struct ieee80211_mgmt *)hdr)->u.beacon.variable; } else { goto exit; } + + if (len < el_off) + goto exit; + + el = priv->rx_skb->data + el_off; len -= el_off; el = cfg80211_find_ie(WLAN_EID_DS_PARAMS, el, len); diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index ff101ee5c364..13ea5f0c8e1e 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -1790,7 +1790,7 @@ brcmf_set_key_mgmt(struct net_device *ndev, struct cfg80211_connect_params *sme) sme->crypto.cipher_group); return -EINVAL; } - } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED)) { + } else if (val & (WPA2_AUTH_PSK | WPA2_AUTH_UNSPECIFIED | WPA2_AUTH_1X_SHA256)) { switch (sme->crypto.akm_suites[0]) { case WLAN_AKM_SUITE_8021X: val = WPA2_AUTH_UNSPECIFIED; diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c index 6d8a04217018..6a266c33b535 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/pcie.c @@ -1255,16 +1255,20 @@ static int brcmf_pcie_init_ringbuffers(struct brcmf_pciedev_info *devinfo) static void brcmf_pcie_release_scratchbuffers(struct brcmf_pciedev_info *devinfo) { - if (devinfo->shared.scratch) + if (devinfo->shared.scratch) { dma_free_coherent(&devinfo->pdev->dev, BRCMF_DMA_D2H_SCRATCH_BUF_LEN, devinfo->shared.scratch, devinfo->shared.scratch_dmahandle); - if (devinfo->shared.ringupd) + devinfo->shared.scratch = NULL; + } + if (devinfo->shared.ringupd) { dma_free_coherent(&devinfo->pdev->dev, BRCMF_DMA_D2H_RINGUPD_BUF_LEN, devinfo->shared.ringupd, devinfo->shared.ringupd_dmahandle); + devinfo->shared.ringupd = NULL; + } } static int brcmf_pcie_init_scratchbuffers(struct brcmf_pciedev_info *devinfo) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c index 76b2953725c2..696f3aa32adc 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c @@ -4451,6 +4451,7 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev) bus->sdiodev = sdiodev; sdiodev->bus = bus; skb_queue_head_init(&bus->glom); + INIT_WORK(&bus->datawork, brcmf_sdio_dataworker); bus->txbound = BRCMF_TXBOUND; bus->rxbound = BRCMF_RXBOUND; bus->txminmax = BRCMF_TXMINMAX; @@ -4464,7 +4465,6 @@ struct brcmf_sdio *brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev) goto fail; } brcmf_sdiod_freezer_count(sdiodev); - INIT_WORK(&bus->datawork, brcmf_sdio_dataworker); bus->brcmf_wq = wq; /* attempt to attach to the dongle */ diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c index 47eb89b773cf..c954e6001eab 100644 --- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c @@ -6183,6 +6183,8 @@ static int ipw2100_pci_init_one(struct pci_dev *pci_dev, if (err) { printk(KERN_WARNING DRV_NAME "Error calling pci_enable_device.\n"); + free_libipw(dev, 0); + pci_iounmap(pci_dev, ioaddr); return err; } @@ -6195,16 +6197,14 @@ static int ipw2100_pci_init_one(struct pci_dev *pci_dev, if (err) { printk(KERN_WARNING DRV_NAME "Error calling pci_set_dma_mask.\n"); - pci_disable_device(pci_dev); - return err; + goto fail; } err = pci_request_regions(pci_dev, DRV_NAME); if (err) { printk(KERN_WARNING DRV_NAME "Error calling pci_request_regions.\n"); - pci_disable_device(pci_dev); - return err; + goto fail; } /* We disable the RETRY_TIMEOUT register (0x41) to keep diff --git a/drivers/net/wireless/intersil/p54/txrx.c b/drivers/net/wireless/intersil/p54/txrx.c index 6333b1000f92..303badbd53d9 100644 --- a/drivers/net/wireless/intersil/p54/txrx.c +++ b/drivers/net/wireless/intersil/p54/txrx.c @@ -503,11 +503,19 @@ static void p54_rx_eeprom_readback(struct p54_common *priv, if (le16_to_cpu(eeprom->v2.len) != priv->eeprom_slice_size) return; + if (eeprom->v2.data + priv->eeprom_slice_size > + skb_tail_pointer(skb)) + return; + memcpy(priv->eeprom, eeprom->v2.data, priv->eeprom_slice_size); } else { if (le16_to_cpu(eeprom->v1.len) != priv->eeprom_slice_size) return; + if (eeprom->v1.data + priv->eeprom_slice_size > + skb_tail_pointer(skb)) + return; + memcpy(priv->eeprom, eeprom->v1.data, priv->eeprom_slice_size); } diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index ed4d83775fe7..9c102c25a533 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -4332,6 +4332,7 @@ static void hwsim_virtio_rx_work(struct work_struct *work) skb->data = skb->head; skb_reset_tail_pointer(skb); + len = min(len, skb_end_offset(skb)); skb_put(skb, len); hwsim_virtio_handle_cmd(skb); diff --git a/drivers/net/wireless/marvell/libertas/firmware.c b/drivers/net/wireless/marvell/libertas/firmware.c index f124110944b7..9bf7d4c207b9 100644 --- a/drivers/net/wireless/marvell/libertas/firmware.c +++ b/drivers/net/wireless/marvell/libertas/firmware.c @@ -78,6 +78,7 @@ static void helper_firmware_cb(const struct firmware *firmware, void *context) } else { /* No main firmware needed for this helper --> success! */ lbs_fw_loaded(priv, 0, firmware, NULL); + release_firmware(firmware); } } diff --git a/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c b/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c index 2656b79fdb3b..735e80722df0 100644 --- a/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c +++ b/drivers/net/wireless/marvell/mwifiex/11n_rxreorder.c @@ -56,7 +56,7 @@ static int mwifiex_11n_dispatch_amsdu_pkt(struct mwifiex_private *priv, ntohs(rx_hdr->eth803_hdr.h_proto) == ETH_P_TDLS) { mwifiex_process_tdls_action_frame(priv, (u8 *)rx_hdr, - skb->len); + rx_skb->len); } if (priv->bss_role == MWIFIEX_BSS_ROLE_UAP) diff --git a/drivers/net/wireless/marvell/mwifiex/tdls.c b/drivers/net/wireless/marvell/mwifiex/tdls.c index 6c60621b6ccc..d503db3789c5 100644 --- a/drivers/net/wireless/marvell/mwifiex/tdls.c +++ b/drivers/net/wireless/marvell/mwifiex/tdls.c @@ -215,7 +215,7 @@ mwifiex_tdls_add_ht_oper(struct mwifiex_private *priv, const u8 *mac, /* follow AP's channel bandwidth */ if (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) && - bss_desc->bcn_ht_cap && + bss_desc->bcn_ht_oper && ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param)) ht_oper->ht_param = bss_desc->bcn_ht_oper->ht_param; diff --git a/drivers/net/wireless/marvell/mwifiex/uap_event.c b/drivers/net/wireless/marvell/mwifiex/uap_event.c index 9121447e2701..eebfc0eaf905 100644 --- a/drivers/net/wireless/marvell/mwifiex/uap_event.c +++ b/drivers/net/wireless/marvell/mwifiex/uap_event.c @@ -135,11 +135,31 @@ int mwifiex_process_uap_event(struct mwifiex_private *priv) len = ETH_ALEN; if (len != -1) { + u16 evt_len = le16_to_cpu(event->len); + sinfo->assoc_req_ies = &event->data[len]; len = (u8 *)sinfo->assoc_req_ies - (u8 *)&event->frame_control; - sinfo->assoc_req_ies_len = - le16_to_cpu(event->len) - (u16)len; + + /* + * event->len is reported by the device firmware + * and is not otherwise validated. Reject a + * length that underflows the header, or that + * would place the association request IEs + * outside the fixed-size event_body[] buffer the + * event was copied into; otherwise the IE walk + * in mwifiex_set_sta_ht_cap() reads past + * event_body and out of the adapter slab object. + */ + if (evt_len < len || + (u8 *)&event->frame_control + evt_len > + adapter->event_body + MAX_EVENT_SIZE) { + mwifiex_dbg(adapter, ERROR, + "invalid STA assoc event length\n"); + kfree(sinfo); + return -1; + } + sinfo->assoc_req_ies_len = evt_len - (u16)len; } } cfg80211_new_sta(priv->netdev, event->sta_addr, sinfo, diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c index 2f0ba8a75d71..ee90ec27f09f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c +++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c @@ -1601,6 +1601,10 @@ void mt7615_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q, dev_kfree_skb(skb); break; case PKT_TYPE_TXRX_NOTIFY: + if (!mt76_is_mmio(mdev)) { + dev_kfree_skb(skb); + break; + } mt7615_mac_tx_free(dev, skb); break; case PKT_TYPE_RX_EVENT: diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index a5dda20f39f3..3143b3f2ba6a 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -1191,6 +1191,8 @@ mt76_connac_mcu_uni_bss_he_tlv(struct mt76_phy *phy, struct ieee80211_vif *vif, struct bss_info_uni_he *he; cap = mt76_connac_get_he_phy_cap(phy, vif); + if (!cap) + return; he = (struct bss_info_uni_he *)tlv; he->he_pe_duration = vif->bss_conf.htc_trig_based_pkt_ext; diff --git a/drivers/net/wireless/microchip/wilc1000/hif.c b/drivers/net/wireless/microchip/wilc1000/hif.c index 3fabcf385787..b5ee73533f42 100644 --- a/drivers/net/wireless/microchip/wilc1000/hif.c +++ b/drivers/net/wireless/microchip/wilc1000/hif.c @@ -582,6 +582,11 @@ static s32 wilc_parse_assoc_resp_info(u8 *buffer, u32 buffer_len, u16 ies_len; struct wilc_assoc_resp *res = (struct wilc_assoc_resp *)buffer; + if (buffer_len < sizeof(*res)) { + ret_conn_info->status = WLAN_STATUS_UNSPECIFIED_FAILURE; + return -EINVAL; + } + ret_conn_info->status = le16_to_cpu(res->status_code); if (ret_conn_info->status == WLAN_STATUS_SUCCESS) { ies = &buffer[sizeof(*res)]; diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c index 95081052dce7..8fe51218441e 100644 --- a/drivers/nvme/target/tcp.c +++ b/drivers/nvme/target/tcp.c @@ -1239,8 +1239,10 @@ static int nvmet_tcp_try_recv_ddgst(struct nvmet_tcp_queue *queue) queue->idx, cmd->req.cmd->common.command_id, queue->pdu.cmd.hdr.type, le32_to_cpu(cmd->recv_ddgst), le32_to_cpu(cmd->exp_ddgst)); - if (!(cmd->flags & NVMET_TCP_F_INIT_FAILED)) + if (!(cmd->flags & NVMET_TCP_F_INIT_FAILED)) { + cmd->req.cqe->status = NVME_SC_CMD_SEQ_ERROR; nvmet_req_uninit(&cmd->req); + } nvmet_tcp_free_cmd_buffers(cmd); nvmet_tcp_fatal_error(queue); ret = -EPROTO; diff --git a/drivers/phy/xilinx/phy-zynqmp.c b/drivers/phy/xilinx/phy-zynqmp.c index ac9a9124a36d..3f24978b4994 100644 --- a/drivers/phy/xilinx/phy-zynqmp.c +++ b/drivers/phy/xilinx/phy-zynqmp.c @@ -53,7 +53,7 @@ #define L0_TM_DIG_6 0x106c #define L0_TM_DIS_DESCRAMBLE_DECODER 0x0f #define L0_TX_DIG_61 0x00f4 -#define L0_TM_DISABLE_SCRAMBLE_ENCODER 0x0f +#define L0_TM_DISABLE_SCRAMBLE_ENCODER (BIT(3) | GENMASK(1, 0)) /* PLL Test Mode register parameters */ #define L0_TM_PLL_DIG_37 0x2094 @@ -228,7 +228,6 @@ struct xpsgtr_phy { * @siou: siou base address * @gtr_mutex: mutex for locking * @phys: PHY lanes - * @refclk_sscs: spread spectrum settings for the reference clocks * @clk: reference clocks * @tx_term_fix: fix for GT issue * @saved_icm_cfg0: stored value of ICM CFG0 register @@ -241,7 +240,6 @@ struct xpsgtr_dev { void __iomem *siou; struct mutex gtr_mutex; /* mutex for locking */ struct xpsgtr_phy phys[NUM_LANES]; - const struct xpsgtr_ssc *refclk_sscs[NUM_LANES]; struct clk *clk[NUM_LANES]; bool tx_term_fix; unsigned int saved_icm_cfg0; @@ -384,13 +382,40 @@ static int xpsgtr_wait_pll_lock(struct phy *phy) return ret; } +/* Get the spread spectrum (SSC) settings for the reference clock rate */ +static const struct xpsgtr_ssc *xpsgtr_find_sscs(struct xpsgtr_phy *gtr_phy) +{ + unsigned long rate; + struct clk *clk; + unsigned int i; + + clk = gtr_phy->dev->clk[gtr_phy->refclk]; + rate = clk_get_rate(clk); + + for (i = 0 ; i < ARRAY_SIZE(ssc_lookup); i++) { + /* Allow an error of 100 ppm */ + unsigned long error = ssc_lookup[i].refclk_rate / 10000; + + if (abs(rate - ssc_lookup[i].refclk_rate) < error) + return &ssc_lookup[i]; + } + + dev_err(gtr_phy->dev->dev, "Invalid rate %lu for reference clock %u\n", + rate, gtr_phy->refclk); + + return NULL; +} + /* Configure PLL and spread-sprectrum clock. */ -static void xpsgtr_configure_pll(struct xpsgtr_phy *gtr_phy) +static int xpsgtr_configure_pll(struct xpsgtr_phy *gtr_phy) { const struct xpsgtr_ssc *ssc; u32 step_size; - ssc = gtr_phy->dev->refclk_sscs[gtr_phy->refclk]; + ssc = xpsgtr_find_sscs(gtr_phy); + if (!ssc) + return -EINVAL; + step_size = ssc->step_size; xpsgtr_clr_set(gtr_phy->dev, PLL_REF_SEL(gtr_phy->lane), @@ -432,6 +457,8 @@ static void xpsgtr_configure_pll(struct xpsgtr_phy *gtr_phy) xpsgtr_clr_set_phy(gtr_phy, L0_PLL_SS_STEP_SIZE_3_MSB, STEP_SIZE_3_MASK, (step_size & STEP_SIZE_3_MASK) | FORCE_STEP_SIZE | FORCE_STEPS); + + return 0; } /* Configure the lane protocol. */ @@ -461,11 +488,30 @@ static void xpsgtr_lane_set_protocol(struct xpsgtr_phy *gtr_phy) } } -/* Bypass (de)scrambler and 8b/10b decoder and encoder. */ -static void xpsgtr_bypass_scrambler_8b10b(struct xpsgtr_phy *gtr_phy) +/** + * xpsgtr_bypass_scrambler_8b10b - Configure scrambler/encoder behavior + * @gtr_phy: pointer to lane context + * @bypass: true to enable scrambler/encoder bypass (SATA/SGMII), + * false to disable scrambler/encoder bypass (USB3) + * + * Uses RMW to preserve reserved and unrelated register fields. + */ +static void xpsgtr_bypass_scrambler_8b10b(struct xpsgtr_phy *gtr_phy, + bool bypass) { - xpsgtr_write_phy(gtr_phy, L0_TM_DIG_6, L0_TM_DIS_DESCRAMBLE_DECODER); - xpsgtr_write_phy(gtr_phy, L0_TX_DIG_61, L0_TM_DISABLE_SCRAMBLE_ENCODER); + if (bypass) { + xpsgtr_clr_set_phy(gtr_phy, L0_TM_DIG_6, + L0_TM_DIS_DESCRAMBLE_DECODER, + L0_TM_DIS_DESCRAMBLE_DECODER); + xpsgtr_clr_set_phy(gtr_phy, L0_TX_DIG_61, + L0_TM_DISABLE_SCRAMBLE_ENCODER, + L0_TM_DISABLE_SCRAMBLE_ENCODER); + } else { + xpsgtr_clr_set_phy(gtr_phy, L0_TM_DIG_6, + L0_TM_DIS_DESCRAMBLE_DECODER, 0); + xpsgtr_clr_set_phy(gtr_phy, L0_TX_DIG_61, + L0_TM_DISABLE_SCRAMBLE_ENCODER, 0); + } } /* DP-specific initialization. */ @@ -486,7 +532,7 @@ static void xpsgtr_phy_init_sata(struct xpsgtr_phy *gtr_phy) { struct xpsgtr_dev *gtr_dev = gtr_phy->dev; - xpsgtr_bypass_scrambler_8b10b(gtr_phy); + xpsgtr_bypass_scrambler_8b10b(gtr_phy, true); writel(gtr_phy->lane, gtr_dev->siou + SATA_CONTROL_OFFSET); } @@ -502,7 +548,7 @@ static void xpsgtr_phy_init_sgmii(struct xpsgtr_phy *gtr_phy) xpsgtr_clr_set(gtr_dev, TX_PROT_BUS_WIDTH, mask, val); xpsgtr_clr_set(gtr_dev, RX_PROT_BUS_WIDTH, mask, val); - xpsgtr_bypass_scrambler_8b10b(gtr_phy); + xpsgtr_bypass_scrambler_8b10b(gtr_phy, true); } /* Configure TX de-emphasis and margining for DP. */ @@ -617,12 +663,13 @@ static int xpsgtr_phy_init(struct phy *phy) { struct xpsgtr_phy *gtr_phy = phy_get_drvdata(phy); struct xpsgtr_dev *gtr_dev = gtr_phy->dev; - int ret = 0; + int ret; mutex_lock(>r_dev->gtr_mutex); /* Configure and enable the clock when peripheral phy_init call */ - if (clk_prepare_enable(gtr_dev->clk[gtr_phy->refclk])) + ret = clk_prepare_enable(gtr_dev->clk[gtr_phy->refclk]); + if (ret) goto out; /* Skip initialization if not required. */ @@ -632,7 +679,7 @@ static int xpsgtr_phy_init(struct phy *phy) if (gtr_dev->tx_term_fix) { ret = xpsgtr_phy_tx_term_fix(gtr_phy); if (ret < 0) - goto out; + goto out_disable_clk; gtr_dev->tx_term_fix = false; } @@ -644,7 +691,10 @@ static int xpsgtr_phy_init(struct phy *phy) * Configure the PLL, the lane protocol, and perform protocol-specific * initialization. */ - xpsgtr_configure_pll(gtr_phy); + ret = xpsgtr_configure_pll(gtr_phy); + if (ret) + goto out_disable_clk; + xpsgtr_lane_set_protocol(gtr_phy); switch (gtr_phy->protocol) { @@ -659,8 +709,16 @@ static int xpsgtr_phy_init(struct phy *phy) case ICM_PROTOCOL_SGMII: xpsgtr_phy_init_sgmii(gtr_phy); break; + + case ICM_PROTOCOL_USB: + xpsgtr_bypass_scrambler_8b10b(gtr_phy, false); + break; } + goto out; + +out_disable_clk: + clk_disable_unprepare(gtr_dev->clk[gtr_phy->refclk]); out: mutex_unlock(>r_dev->gtr_mutex); return ret; @@ -854,8 +912,7 @@ static struct phy *xpsgtr_xlate(struct device *dev, } refclk = args->args[3]; - if (refclk >= ARRAY_SIZE(gtr_dev->refclk_sscs) || - !gtr_dev->refclk_sscs[refclk]) { + if (refclk >= ARRAY_SIZE(gtr_dev->clk)) { dev_err(dev, "Invalid reference clock number %u\n", refclk); return ERR_PTR(-EINVAL); } @@ -931,9 +988,7 @@ static int xpsgtr_get_ref_clocks(struct xpsgtr_dev *gtr_dev) { unsigned int refclk; - for (refclk = 0; refclk < ARRAY_SIZE(gtr_dev->refclk_sscs); ++refclk) { - unsigned long rate; - unsigned int i; + for (refclk = 0; refclk < ARRAY_SIZE(gtr_dev->clk); ++refclk) { struct clk *clk; char name[8]; @@ -949,26 +1004,6 @@ static int xpsgtr_get_ref_clocks(struct xpsgtr_dev *gtr_dev) continue; gtr_dev->clk[refclk] = clk; - - /* - * Get the spread spectrum (SSC) settings for the reference - * clock rate. - */ - rate = clk_get_rate(clk); - - for (i = 0 ; i < ARRAY_SIZE(ssc_lookup); i++) { - if (rate == ssc_lookup[i].refclk_rate) { - gtr_dev->refclk_sscs[refclk] = &ssc_lookup[i]; - break; - } - } - - if (i == ARRAY_SIZE(ssc_lookup)) { - dev_err(gtr_dev->dev, - "Invalid rate %lu for reference clock %u\n", - rate, refclk); - return -EINVAL; - } } return 0; @@ -1033,6 +1068,12 @@ static int xpsgtr_probe(struct platform_device *pdev) return PTR_ERR(provider); } + gtr_dev->saved_regs = devm_kmalloc(gtr_dev->dev, + sizeof(save_reg_address), + GFP_KERNEL); + if (!gtr_dev->saved_regs) + return -ENOMEM; + pm_runtime_set_active(gtr_dev->dev); pm_runtime_enable(gtr_dev->dev); @@ -1042,12 +1083,6 @@ static int xpsgtr_probe(struct platform_device *pdev) return ret; } - gtr_dev->saved_regs = devm_kmalloc(gtr_dev->dev, - sizeof(save_reg_address), - GFP_KERNEL); - if (!gtr_dev->saved_regs) - return -ENOMEM; - return 0; } diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig index 546a8f1bb10b..933e3d409ffc 100644 --- a/drivers/pinctrl/Kconfig +++ b/drivers/pinctrl/Kconfig @@ -116,6 +116,7 @@ config PINCTRL_BM1880 depends on OF && (ARCH_BITMAIN || COMPILE_TEST) default ARCH_BITMAIN select PINMUX + select GENERIC_PINCONF help Pinctrl driver for Bitmain BM1880 SoC. diff --git a/drivers/pinctrl/devicetree.c b/drivers/pinctrl/devicetree.c index d9279fc7be83..2898fdfdffd2 100644 --- a/drivers/pinctrl/devicetree.c +++ b/drivers/pinctrl/devicetree.c @@ -69,6 +69,10 @@ static int dt_remember_or_free_map(struct pinctrl *p, const char *statename, int i; struct pinctrl_dt_map *dt_map; + /* Initialize dev_name before any allocation can fail */ + for (i = 0; i < num_maps; i++) + map[i].dev_name = NULL; + /* Initialize common mapping table entry fields */ for (i = 0; i < num_maps; i++) { const char *devname; diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c index f839bd3d0927..eceba66ab033 100644 --- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c +++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c @@ -565,7 +565,7 @@ static int rzg2l_pinctrl_pinconf_set(struct pinctrl_dev *pctldev, break; } default: - return -EOPNOTSUPP; + return -ENOTSUPP; } } @@ -614,7 +614,7 @@ static int rzg2l_pinctrl_pinconf_group_get(struct pinctrl_dev *pctldev, /* Check config matching between to pin */ if (i && prev_config != *config) - return -EOPNOTSUPP; + return -ENOTSUPP; prev_config = *config; } diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c index 7dad0428d73c..16806f144d21 100644 --- a/drivers/s390/block/dasd_ioctl.c +++ b/drivers/s390/block/dasd_ioctl.c @@ -330,7 +330,7 @@ static int dasd_ioctl_check_format(struct block_device *bdev, void __user *argp) static int dasd_release_space(struct dasd_device *device, struct format_data_t *rdata) { - if (!device->discipline->is_ese && !device->discipline->is_ese(device)) + if (!device->discipline->is_ese || !device->discipline->is_ese(device)) return -ENOTSUPP; if (!device->discipline->release_space) return -ENOTSUPP; diff --git a/drivers/s390/crypto/zcrypt_ccamisc.c b/drivers/s390/crypto/zcrypt_ccamisc.c index 6a3c2b460965..cbd7c96ceb0c 100644 --- a/drivers/s390/crypto/zcrypt_ccamisc.c +++ b/drivers/s390/crypto/zcrypt_ccamisc.c @@ -946,7 +946,8 @@ static int _ip_cprb_helper(u16 cardnr, u16 domain, const u8 *clr_key_value, int clr_key_bit_size, u8 *key_token, - int *key_token_size) + int *key_token_size, + bool scrub) { int rc, n; u8 *mem, *ptr; @@ -1087,7 +1088,7 @@ static int _ip_cprb_helper(u16 cardnr, u16 domain, *key_token_size = t->len; out: - free_cprbmem(mem, PARMBSIZE, 0); + free_cprbmem(mem, PARMBSIZE, scrub); return rc; } @@ -1130,7 +1131,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags, * 4/4 COMPLETE the secure cipher key import */ rc = _ip_cprb_helper(card, dom, "AES ", "FIRST ", "MIN3PART", - exorbuf, keybitsize, token, &tokensize); + exorbuf, keybitsize, token, &tokensize, + true); if (rc) { DEBUG_ERR( "%s clear key import 1/4 with CSNBKPI2 failed, rc=%d\n", @@ -1138,7 +1140,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags, goto out; } rc = _ip_cprb_helper(card, dom, "AES ", "ADD-PART", NULL, - clrkey, keybitsize, token, &tokensize); + clrkey, keybitsize, token, &tokensize, + true); if (rc) { DEBUG_ERR( "%s clear key import 2/4 with CSNBKPI2 failed, rc=%d\n", @@ -1146,7 +1149,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags, goto out; } rc = _ip_cprb_helper(card, dom, "AES ", "ADD-PART", NULL, - exorbuf, keybitsize, token, &tokensize); + exorbuf, keybitsize, token, &tokensize, + true); if (rc) { DEBUG_ERR( "%s clear key import 3/4 with CSNBKPI2 failed, rc=%d\n", @@ -1154,7 +1158,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags, goto out; } rc = _ip_cprb_helper(card, dom, "AES ", "COMPLETE", NULL, - NULL, keybitsize, token, &tokensize); + NULL, keybitsize, token, &tokensize, + true); if (rc) { DEBUG_ERR( "%s clear key import 4/4 with CSNBKPI2 failed, rc=%d\n", @@ -1172,7 +1177,8 @@ int cca_clr2cipherkey(u16 card, u16 dom, u32 keybitsize, u32 keygenflags, *keybufsize = tokensize; out: - kfree(token); + memzero_explicit(exorbuf, sizeof(exorbuf)); + kfree_sensitive(token); return rc; } EXPORT_SYMBOL(cca_clr2cipherkey); @@ -1232,6 +1238,9 @@ int cca_cipher2protkey(u16 cardnr, u16 domain, const u8 *ckey, } __packed * prepparm; int keytoklen = ((struct cipherkeytoken *)ckey)->len; + if (keytoklen > PARMBSIZE - sizeof(struct aureqparm)) + return -EINVAL; + /* get already prepared memory for 2 cprbs with param block each */ rc = alloc_and_prep_cprbmem(PARMBSIZE, &mem, &preqcblk, &prepcblk); if (rc) @@ -1401,6 +1410,9 @@ int cca_ecc2protkey(u16 cardnr, u16 domain, const u8 *key, } __packed * prepparm; int keylen = ((struct eccprivkeytoken *)key)->len; + if (keylen > PARMBSIZE - sizeof(struct aureqparm)) + return -EINVAL; + /* get already prepared memory for 2 cprbs with param block each */ rc = alloc_and_prep_cprbmem(PARMBSIZE, &mem, &preqcblk, &prepcblk); if (rc) diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 5c69cba6459f..9531db0660e9 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -6609,6 +6609,9 @@ int qeth_siocdevprivate(struct net_device *dev, struct ifreq *rq, void __user *d struct qeth_card *card = dev->ml_priv; int rc = 0; + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + switch (cmd) { case SIOC_QETH_ADP_SET_SNMP_CONTROL: rc = qeth_snmp_command(card, data); diff --git a/drivers/s390/scsi/zfcp_aux.c b/drivers/s390/scsi/zfcp_aux.c index 2e29121f96fa..c92f9b13d8ec 100644 --- a/drivers/s390/scsi/zfcp_aux.c +++ b/drivers/s390/scsi/zfcp_aux.c @@ -254,6 +254,7 @@ static int zfcp_allocate_low_mem_buffers(struct zfcp_adapter *adapter) static void zfcp_free_low_mem_buffers(struct zfcp_adapter *adapter) { mempool_destroy(adapter->pool.erp_req); + mempool_destroy(adapter->pool.gid_pn_req); mempool_destroy(adapter->pool.scsi_req); mempool_destroy(adapter->pool.scsi_abort); mempool_destroy(adapter->pool.qtcb_pool); diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 225aa8279960..fbb5eecbb7ca 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -866,7 +866,7 @@ static void iscsi_scsi_cmd_rsp(struct iscsi_conn *conn, struct iscsi_hdr *hdr, } senselen = get_unaligned_be16(data); - if (datalen < senselen) + if (datalen < senselen + 2) goto invalid_datalen; memcpy(sc->sense_buffer, data + 2, diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c index 883005757ddb..8e9f6e14c6e5 100644 --- a/drivers/scsi/libiscsi_tcp.c +++ b/drivers/scsi/libiscsi_tcp.c @@ -759,13 +759,6 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr) rc = __iscsi_complete_pdu(conn, hdr, NULL, 0); spin_unlock(&conn->session->back_lock); break; - case ISCSI_OP_SCSI_CMD_RSP: - if (tcp_conn->in.datalen) { - iscsi_tcp_data_recv_prep(tcp_conn); - return 0; - } - rc = iscsi_complete_pdu(conn, hdr, NULL, 0); - break; case ISCSI_OP_R2T: if (ahslen) { rc = ISCSI_ERR_AHSLEN; @@ -773,6 +766,7 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr) } rc = iscsi_tcp_r2t_rsp(conn, hdr); break; + case ISCSI_OP_SCSI_CMD_RSP: case ISCSI_OP_LOGIN_RSP: case ISCSI_OP_TEXT_RSP: case ISCSI_OP_REJECT: diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 591df0a91057..7a3ded66e83e 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -3005,8 +3005,8 @@ static bool comp_write_worker(struct sdeb_store_info *sip, u64 lba, u32 num, if (!res) return res; if (rest) - res = memcmp(fsp, arr + ((num - rest) * lb_size), - rest * lb_size); + res = !memcmp(fsp, arr + ((num - rest) * lb_size), + rest * lb_size); if (!res) return res; if (compare_only) diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c index 580fdcbcd9b6..2bf8cc137d31 100644 --- a/drivers/spi/spi-fsl-dspi.c +++ b/drivers/spi/spi-fsl-dspi.c @@ -751,8 +751,12 @@ static void dspi_setup_accel(struct fsl_dspi *dspi) struct spi_transfer *xfer = dspi->cur_transfer; bool odd = !!(dspi->len & 1); - /* No accel for frames not multiple of 8 bits at the moment */ - if (xfer->bits_per_word % 8) + /* + * No accel for DMA transfers or frames not multiples of 8 bits at the + * moment. + */ + if (dspi->devtype_data->trans_mode == DSPI_DMA_MODE || + xfer->bits_per_word % 8) goto no_accel; if (!odd && dspi->len <= dspi->devtype_data->fifo_size * 2) { @@ -761,10 +765,7 @@ static void dspi_setup_accel(struct fsl_dspi *dspi) dspi->oper_bits_per_word = 8; } else { /* Start off with maximum supported by hardware */ - if (dspi->devtype_data->trans_mode == DSPI_XSPI_MODE) - dspi->oper_bits_per_word = 32; - else - dspi->oper_bits_per_word = 16; + dspi->oper_bits_per_word = 32; /* * And go down only if the buffer can't be sent with diff --git a/drivers/staging/media/meson/vdec/vdec.c b/drivers/staging/media/meson/vdec/vdec.c index 040ed56eb24f..39bf7f64ad0e 100644 --- a/drivers/staging/media/meson/vdec/vdec.c +++ b/drivers/staging/media/meson/vdec/vdec.c @@ -897,7 +897,7 @@ static int vdec_open(struct file *file) ret = vdec_init_ctrls(sess); if (ret) - goto err_m2m_release; + goto err_m2m_ctx_release; sess->pixfmt_cap = formats[0].pixfmts_cap[0]; sess->fmt_out = &formats[0]; @@ -922,6 +922,8 @@ static int vdec_open(struct file *file) return 0; +err_m2m_ctx_release: + v4l2_m2m_ctx_release(sess->m2m_ctx); err_m2m_release: v4l2_m2m_release(sess->m2m_dev); err_free_sess: diff --git a/drivers/staging/media/sunxi/cedrus/cedrus.c b/drivers/staging/media/sunxi/cedrus/cedrus.c index 560ccdd40481..6ab033ab7f6e 100644 --- a/drivers/staging/media/sunxi/cedrus/cedrus.c +++ b/drivers/staging/media/sunxi/cedrus/cedrus.c @@ -302,6 +302,7 @@ static int cedrus_open(struct file *file) err_ctrls: v4l2_ctrl_handler_free(&ctx->hdl); err_free: + v4l2_fh_exit(&ctx->fh); kfree(ctx); mutex_unlock(&dev->dev_mutex); @@ -422,7 +423,7 @@ static int cedrus_probe(struct platform_device *pdev) ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0); if (ret) { v4l2_err(&dev->v4l2_dev, "Failed to register video device\n"); - goto err_m2m; + goto err_media; } v4l2_info(&dev->v4l2_dev, @@ -448,7 +449,8 @@ static int cedrus_probe(struct platform_device *pdev) v4l2_m2m_unregister_media_controller(dev->m2m_dev); err_video: video_unregister_device(&dev->vfd); -err_m2m: +err_media: + media_device_cleanup(&dev->mdev); v4l2_m2m_release(dev->m2m_dev); err_v4l2: v4l2_device_unregister(&dev->v4l2_dev); diff --git a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c index d3e26bfe6c90..712c89d64650 100644 --- a/drivers/staging/media/sunxi/cedrus/cedrus_h264.c +++ b/drivers/staging/media/sunxi/cedrus/cedrus_h264.c @@ -190,6 +190,9 @@ static void _cedrus_write_ref_list(struct cedrus_ctx *ctx, u8 dpb_idx; dpb_idx = ref_list[i].index; + if (dpb_idx >= V4L2_H264_NUM_DPB_ENTRIES) + continue; + dpb = &decode->dpb[dpb_idx]; if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) diff --git a/drivers/staging/media/tegra-video/vi.c b/drivers/staging/media/tegra-video/vi.c index d321790b07d9..39d59380b57c 100644 --- a/drivers/staging/media/tegra-video/vi.c +++ b/drivers/staging/media/tegra-video/vi.c @@ -76,8 +76,8 @@ static int tegra_get_format_idx_by_code(struct tegra_vi *vi, static u32 tegra_get_format_fourcc_by_idx(struct tegra_vi *vi, unsigned int index) { - if (index >= vi->soc->nformats) - return -EINVAL; + if (WARN_ON_ONCE(index >= vi->soc->nformats)) + return vi->soc->video_formats[0].fourcc; return vi->soc->video_formats[index].fourcc; } diff --git a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c index bd21d86318c2..76e9e8fba568 100644 --- a/drivers/staging/rtl8723bs/core/rtw_ieee80211.c +++ b/drivers/staging/rtl8723bs/core/rtw_ieee80211.c @@ -370,6 +370,9 @@ unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit) pbuf = rtw_get_ie(pbuf, WLAN_EID_VENDOR_SPECIFIC, &len, limit_new); if (pbuf) { + if (len < 6) + goto check_next_ie; + /* check if oui matches... */ if (memcmp((pbuf + 2), wpa_oui_type, sizeof(wpa_oui_type))) goto check_next_ie; @@ -694,7 +697,14 @@ u8 *rtw_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen) while (cnt < in_len) { eid = in_ie[cnt]; - if ((eid == WLAN_EID_VENDOR_SPECIFIC) && (!memcmp(&in_ie[cnt + 2], wps_oui, 4))) { + if (cnt + 2 > in_len) + break; + + if (in_ie[cnt + 1] + 2 > in_len - cnt) + break; + + if ((eid == WLAN_EID_VENDOR_SPECIFIC) && (in_ie[cnt + 1] >= 4) && + (!memcmp(&in_ie[cnt + 2], wps_oui, 4))) { wpsie_ptr = &in_ie[cnt]; if (wps_ie) diff --git a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c index 5b2c4edfc12f..1c586e4d95e4 100644 --- a/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c +++ b/drivers/staging/rtl8723bs/core/rtw_mlme_ext.c @@ -911,7 +911,7 @@ unsigned int OnAuthClient(struct adapter *padapter, union recv_frame *precv_fram p = rtw_get_ie(pframe + WLAN_HDR_A3_LEN + _AUTH_IE_OFFSET_, WLAN_EID_CHALLENGE, (int *)&len, pkt_len - WLAN_HDR_A3_LEN - _AUTH_IE_OFFSET_); - if (!p) + if (!p || len != WLAN_AUTH_CHALLENGE_LEN) goto authclnt_fail; memcpy((void *)(pmlmeinfo->chg_txt), (void *)(p + 2), len); diff --git a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c index 74234b5f5610..e782f18d34e3 100644 --- a/drivers/staging/rtl8723bs/core/rtw_wlan_util.c +++ b/drivers/staging/rtl8723bs/core/rtw_wlan_util.c @@ -731,6 +731,9 @@ int WMM_param_handler(struct adapter *padapter, struct ndis_80211_var_ie *pIE) return false; } + if (pIE->length != WLAN_WMM_LEN) + return false; + if (!memcmp(&(pmlmeinfo->WMM_param), (pIE->data + 6), sizeof(struct WMM_para_element))) return false; else diff --git a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c index 9c9110cc2882..dbbe059f6840 100644 --- a/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c +++ b/drivers/staging/rtl8723bs/os_dep/ioctl_cfg80211.c @@ -1996,7 +1996,7 @@ static u8 rtw_get_chan_type(struct adapter *adapter) else return NL80211_CHAN_NO_HT; case CHANNEL_WIDTH_40: - if (mlme_ext->cur_ch_offset == HAL_PRIME_CHNL_OFFSET_UPPER) + if (mlme_ext->cur_ch_offset == HAL_PRIME_CHNL_OFFSET_LOWER) return NL80211_CHAN_HT40PLUS; else return NL80211_CHAN_HT40MINUS; @@ -2071,6 +2071,8 @@ static netdev_tx_t rtw_cfg80211_monitor_if_xmit_entry(struct sk_buff *skb, struc /* Skip the ratio tap header */ skb_pull(skb, rtap_len); + if (skb->len < dot11_hdr_len) + goto fail; dot11_hdr = (struct ieee80211_hdr *)skb->data; frame_control = le16_to_cpu(dot11_hdr->frame_control); @@ -2083,6 +2085,8 @@ static netdev_tx_t rtw_cfg80211_monitor_if_xmit_entry(struct sk_buff *skb, struc qos_len = 2; if ((frame_control & 0x0300) == 0x0300) dot11_hdr_len += 6; + if (skb->len < dot11_hdr_len + qos_len + snap_len) + goto fail; memcpy(dst_mac_addr, dot11_hdr->addr1, sizeof(dst_mac_addr)); memcpy(src_mac_addr, dot11_hdr->addr2, sizeof(src_mac_addr)); diff --git a/drivers/thermal/thermal_hwmon.c b/drivers/thermal/thermal_hwmon.c index 131c1cf6ab9c..32d6091c20f7 100644 --- a/drivers/thermal/thermal_hwmon.c +++ b/drivers/thermal/thermal_hwmon.c @@ -209,7 +209,8 @@ int thermal_add_hwmon_sysfs(struct thermal_zone_device *tz) if (new_hwmon_device) hwmon_device_unregister(hwmon->device); free_mem: - kfree(hwmon); + if (new_hwmon_device) + kfree(hwmon); return result; } diff --git a/drivers/thunderbolt/eeprom.c b/drivers/thunderbolt/eeprom.c index 470885e6f1c8..9a49963637ce 100644 --- a/drivers/thunderbolt/eeprom.c +++ b/drivers/thunderbolt/eeprom.c @@ -392,9 +392,16 @@ static int tb_drom_parse_entry_port(struct tb_switch *sw, return -EIO; } port->link_nr = entry->link_nr; - if (entry->has_dual_link_port) + if (entry->has_dual_link_port) { + if (entry->dual_link_port_nr > sw->config.max_port_number) { + tb_sw_warn(sw, + "port entry has invalid dual link port number %u\n", + entry->dual_link_port_nr); + return -EIO; + } port->dual_link_port = &port->sw->ports[entry->dual_link_port_nr]; + } } return 0; } diff --git a/drivers/thunderbolt/icm.c b/drivers/thunderbolt/icm.c index e6849a272f8d..ae3cbde7bc3c 100644 --- a/drivers/thunderbolt/icm.c +++ b/drivers/thunderbolt/icm.c @@ -2288,7 +2288,7 @@ static int icm_usb4_switch_op(struct tb_switch *sw, u16 opcode, u32 *metadata, if (tx_data_len) { request.data_len_valid |= ICM_USB4_SWITCH_DATA_VALID; if (tx_data_len < ARRAY_SIZE(request.data)) - request.data_len_valid = + request.data_len_valid |= tx_data_len & ICM_USB4_SWITCH_DATA_LEN_MASK; memcpy(request.data, tx_data, tx_data_len * sizeof(u32)); } diff --git a/drivers/tty/serial/8250/8250_dma.c b/drivers/tty/serial/8250/8250_dma.c index 14b5a54cc795..64ab53782d23 100644 --- a/drivers/tty/serial/8250/8250_dma.c +++ b/drivers/tty/serial/8250/8250_dma.c @@ -199,11 +199,12 @@ void serial8250_rx_dma_flush(struct uart_8250_port *p) { struct uart_8250_dma *dma = p->dma; - if (dma->rx_running) { - dmaengine_pause(dma->rxchan); - __dma_rx_complete(p); - dmaengine_terminate_async(dma->rxchan); - } + if (!dma || !dma->rxchan || !dma->rx_running) + return; + + dmaengine_pause(dma->rxchan); + __dma_rx_complete(p); + dmaengine_terminate_async(dma->rxchan); } EXPORT_SYMBOL_GPL(serial8250_rx_dma_flush); @@ -312,6 +313,7 @@ void serial8250_release_dma(struct uart_8250_port *p) /* Release RX resources */ dmaengine_terminate_sync(dma->rxchan); + dma->rx_running = 0; dma_free_coherent(dma->rxchan->device->dev, dma->rx_size, dma->rx_buf, dma->rx_addr); dma_release_channel(dma->rxchan); diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c index 3820d00dfe2a..760a71d90ff0 100644 --- a/drivers/tty/vt/keyboard.c +++ b/drivers/tty/vt/keyboard.c @@ -1393,7 +1393,7 @@ static void kbd_keycode(unsigned int keycode, int down, bool hw_raw) struct keyboard_notifier_param param = { .vc = vc, .value = keycode, .down = down }; int rc; - tty = vc->port.tty; + tty = tty_port_tty_get(&vc->port); if (tty && (!tty->driver_data)) { /* No driver data? Strange. Okay we fix it then. */ @@ -1453,9 +1453,12 @@ static void kbd_keycode(unsigned int keycode, int down, bool hw_raw) * characters get aren't echoed locally. This makes key repeat * usable with slow applications and under heavy loads. */ + tty_kref_put(tty); return; } + tty_kref_put(tty); + param.shift = shift_final = (shift_state | kbd->slockstate) ^ kbd->lockstate; param.ledstate = kbd->ledflagstate; key_map = key_maps[shift_final]; diff --git a/drivers/tty/vt/vt_ioctl.c b/drivers/tty/vt/vt_ioctl.c index fadecf348586..a9b5fe040450 100644 --- a/drivers/tty/vt/vt_ioctl.c +++ b/drivers/tty/vt/vt_ioctl.c @@ -408,6 +408,8 @@ static int vt_k_ioctl(struct tty_struct *tty, unsigned int cmd, /* this could be folded into KDSKBMODE, but for compatibility reasons it is not so easy to fold KDGKBMETA into KDGKBMODE */ case KDSKBMETA: + if (!perm) + return -EPERM; return vt_do_kdskbmeta(console, arg); case KDGKBMETA: diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c index db9a8f2731f1..071d2a079f14 100644 --- a/drivers/usb/atm/cxacru.c +++ b/drivers/usb/atm/cxacru.c @@ -700,6 +700,8 @@ static int cxacru_cm(struct cxacru_data *instance, enum cxacru_cm_request cm, ret = offd; usb_dbg(instance->usbatm, "cm %#x\n", cm); fail: + if (ret < 0) + usb_kill_urb(instance->rcv_urb); mutex_unlock(&instance->cm_serialize); err: return ret; diff --git a/drivers/usb/atm/ueagle-atm.c b/drivers/usb/atm/ueagle-atm.c index 661820041ca7..6a282400027d 100644 --- a/drivers/usb/atm/ueagle-atm.c +++ b/drivers/usb/atm/ueagle-atm.c @@ -2591,6 +2591,7 @@ static struct usbatm_driver uea_usbatm_driver = { static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id) { struct usb_device *usb = interface_to_usbdev(intf); + bool single_iface = usb->config->desc.bNumInterfaces == 1; int ret; uea_enters(usb); @@ -2600,6 +2601,22 @@ static int uea_probe(struct usb_interface *intf, const struct usb_device_id *id) le16_to_cpu(usb->descriptor.bcdDevice), chip_name[UEA_CHIP_VERSION(id)]); + /* + * uea_probe() decides between the pre-firmware and post-firmware case + * from the USB id and stores a different object as interface data in + * each case: a struct completion for a pre-firmware device, a struct + * usbatm_data for a post-firmware one. uea_disconnect() instead tells + * the two apart by the number of interfaces (a pre-firmware device + * exposes a single interface, ADI930 has 2 and eagle has 3). A crafted + * device advertising a pre-firmware id together with a multi-interface + * descriptor (or the other way around) makes the two disagree, so that + * usbatm_usb_disconnect() treats the small completion object as a + * struct usbatm_data and reads out of bounds. Reject such inconsistent + * descriptors so both paths make the same decision. + */ + if (UEA_IS_PREFIRM(id) != single_iface) + return -ENODEV; + usb_reset_device(usb); if (UEA_IS_PREFIRM(id)) { diff --git a/drivers/usb/cdns3/cdnsp-gadget.c b/drivers/usb/cdns3/cdnsp-gadget.c index 6bd9a2ebf687..9b0f2c7cc978 100644 --- a/drivers/usb/cdns3/cdnsp-gadget.c +++ b/drivers/usb/cdns3/cdnsp-gadget.c @@ -154,9 +154,9 @@ static void cdnsp_set_apb_timeout_value(struct cdnsp_device *pdev) offset = cdnsp_find_next_ext_cap(base, offset, D_XEC_PRE_REGS_CAP); reg = base + offset + REG_CHICKEN_BITS_3_OFFSET; - val = le32_to_cpu(readl(reg)); + val = readl(reg); val = CHICKEN_APB_TIMEOUT_SET(val, cdns->override_apb_timeout); - writel(cpu_to_le32(val), reg); + writel(val, reg); } static void cdnsp_set_chicken_bits_2(struct cdnsp_device *pdev, u32 bit) diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c index c42614319265..b2035309d6ea 100644 --- a/drivers/usb/chipidea/core.c +++ b/drivers/usb/chipidea/core.c @@ -1246,6 +1246,7 @@ static int ci_hdrc_remove(struct platform_device *pdev) usb_role_switch_unregister(ci->role_switch); if (ci->supports_runtime_pm) { + pm_runtime_dont_use_autosuspend(&pdev->dev); pm_runtime_get_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); pm_runtime_put_noidle(&pdev->dev); diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index 3e8ea1bbe429..f9b1cea7382f 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -1258,6 +1258,7 @@ static void f_midi_free(struct usb_function *f) opts = container_of(f->fi, struct f_midi_opts, func_inst); mutex_lock(&opts->lock); if (!--midi->free_ref) { + cancel_work_sync(&midi->work); kfree(midi->id); kfifo_free(&midi->in_req_fifo); kfree(midi); diff --git a/drivers/usb/gadget/function/f_ncm.c b/drivers/usb/gadget/function/f_ncm.c index 5569c85c6854..9ec6bdf81f91 100644 --- a/drivers/usb/gadget/function/f_ncm.c +++ b/drivers/usb/gadget/function/f_ncm.c @@ -1180,7 +1180,7 @@ static int ncm_unwrap_ntb(struct gether *port, unsigned char *ntb_ptr = skb->data; __le16 *tmp; unsigned index, index2; - int ndp_index; + unsigned int ndp_index; unsigned dg_len, dg_len2; unsigned ndp_len; unsigned block_len; @@ -1194,6 +1194,10 @@ static int ncm_unwrap_ntb(struct gether *port, int to_process = skb->len; parse_ntb: + if (to_process < (int)opts->nth_size) { + INFO(port->func.config->cdev, "Packet too small for headers\n"); + goto err; + } tmp = (__le16 *)ntb_ptr; /* dwSignature */ @@ -1214,8 +1218,12 @@ static int ncm_unwrap_ntb(struct gether *port, tmp++; /* skip wSequence */ block_len = get_ncm(&tmp, opts->block_length); + if (block_len == 0) + block_len = to_process; + /* (d)wBlockLength */ - if ((block_len < opts->nth_size + opts->ndp_size) || (block_len > ntb_max)) { + if ((block_len < opts->nth_size + opts->ndp_size) || (block_len > ntb_max) || + (block_len > to_process)) { INFO(port->func.config->cdev, "Bad block length: %#X\n", block_len); goto err; } @@ -1278,7 +1286,7 @@ static int ncm_unwrap_ntb(struct gether *port, index = index2; /* wDatagramIndex[0] */ if ((index < opts->nth_size) || - (index > block_len - opts->dpe_size)) { + (index > block_len)) { INFO(port->func.config->cdev, "Bad index: %#X\n", index); goto err; @@ -1290,7 +1298,8 @@ static int ncm_unwrap_ntb(struct gether *port, * ethernet hdr + crc or larger than max frame size */ if ((dg_len < 14 + crc_len) || - (dg_len > frame_max)) { + (dg_len > frame_max) || + (dg_len > block_len - index)) { INFO(port->func.config->cdev, "Bad dgram length: %#X\n", dg_len); goto err; @@ -1315,7 +1324,7 @@ static int ncm_unwrap_ntb(struct gether *port, dg_len2 = get_ncm(&tmp, opts->dgram_item_len); /* wDatagramIndex[1] */ - if (index2 > block_len - opts->dpe_size) { + if (index2 > block_len) { INFO(port->func.config->cdev, "Bad index: %#X\n", index2); goto err; diff --git a/drivers/usb/gadget/function/f_printer.c b/drivers/usb/gadget/function/f_printer.c index 728cb9702d5a..c3e322ea5910 100644 --- a/drivers/usb/gadget/function/f_printer.c +++ b/drivers/usb/gadget/function/f_printer.c @@ -430,7 +430,7 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) { struct printer_dev *dev = fd->private_data; unsigned long flags; - size_t size; + size_t size, not_copied, copied; size_t bytes_copied; struct usb_request *req; /* This is a pointer to the current USB rx request. */ @@ -523,10 +523,12 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) else size = len; - size -= copy_to_user(buf, current_rx_buf, size); - bytes_copied += size; - len -= size; - buf += size; + not_copied = copy_to_user(buf, current_rx_buf, size); + copied = size - not_copied; + + bytes_copied += copied; + len -= copied; + buf += copied; spin_lock_irqsave(&dev->lock, flags); @@ -541,6 +543,17 @@ printer_read(struct file *fd, char __user *buf, size_t len, loff_t *ptr) if (dev->interface < 0) goto out_disabled; + if (!copied) { + dev->current_rx_req = current_rx_req; + dev->current_rx_bytes = current_rx_bytes; + dev->current_rx_buf = current_rx_buf; + spin_unlock_irqrestore(&dev->lock, flags); + mutex_unlock(&dev->lock_printer_io); + return bytes_copied ? bytes_copied : -EFAULT; + } + + size = copied; + /* If we not returning all the data left in this RX request * buffer then adjust the amount of data left in the buffer. * Othewise if we are done with this RX request buffer then diff --git a/drivers/usb/gadget/function/uvc_v4l2.c b/drivers/usb/gadget/function/uvc_v4l2.c index 2a1efaf3708e..b25fc2610cf1 100644 --- a/drivers/usb/gadget/function/uvc_v4l2.c +++ b/drivers/usb/gadget/function/uvc_v4l2.c @@ -39,6 +39,8 @@ uvc_send_response(struct uvc_device *uvc, struct uvc_request_data *data) return usb_ep_set_halt(cdev->gadget->ep0); req->length = min_t(unsigned int, uvc->event_length, data->length); + if (req->length > sizeof(data->data)) + req->length = sizeof(data->data); req->zero = data->length < uvc->event_length; memcpy(req->buf, data->data, req->length); diff --git a/drivers/usb/gadget/udc/bdc/bdc_core.c b/drivers/usb/gadget/udc/bdc/bdc_core.c index 69d11b703c8d..d9383b0f4d15 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_core.c +++ b/drivers/usb/gadget/udc/bdc/bdc_core.c @@ -586,9 +586,29 @@ static int bdc_probe(struct platform_device *pdev) static int bdc_remove(struct platform_device *pdev) { struct bdc *bdc; + unsigned long flags; + u32 temp; bdc = platform_get_drvdata(pdev); dev_dbg(bdc->dev, "%s ()\n", __func__); + /* + * Disable the device interrupt source before freeing the IRQ: + * clear BDC_GIE so the controller stops asserting interrupts, + * then free_irq drains any in-flight handler. + */ + spin_lock_irqsave(&bdc->lock, flags); + temp = bdc_readl(bdc->regs, BDC_BDCSC); + temp &= ~BDC_GIE; + bdc_writel(bdc->regs, BDC_BDCSC, temp); + spin_unlock_irqrestore(&bdc->lock, flags); + free_irq(bdc->irq, bdc); + /* + * Drain func_wake_notify after free_irq: the IRQ handler arms this + * delayed_work via bdc_sr_uspc -> handle_link_state_change -> + * schedule_delayed_work (self-rearmed in bdc_func_wake_timer), so + * the IRQ must be released first to prevent re-arm after cancel. + */ + cancel_delayed_work_sync(&bdc->func_wake_notify); bdc_udc_exit(bdc); bdc_hw_exit(bdc); bdc_phy_exit(bdc); diff --git a/drivers/usb/gadget/udc/bdc/bdc_udc.c b/drivers/usb/gadget/udc/bdc/bdc_udc.c index 53ffaf4e2e37..b5e573f9ef55 100644 --- a/drivers/usb/gadget/udc/bdc/bdc_udc.c +++ b/drivers/usb/gadget/udc/bdc/bdc_udc.c @@ -530,8 +530,8 @@ int bdc_udc_init(struct bdc *bdc) bdc->gadget.name = BRCM_BDC_NAME; - ret = devm_request_irq(bdc->dev, bdc->irq, bdc_udc_interrupt, - IRQF_SHARED, BRCM_BDC_NAME, bdc); + ret = request_irq(bdc->irq, bdc_udc_interrupt, IRQF_SHARED, + BRCM_BDC_NAME, bdc); if (ret) { dev_err(bdc->dev, "failed to request irq #%d %d\n", @@ -542,7 +542,7 @@ int bdc_udc_init(struct bdc *bdc) ret = bdc_init_ep(bdc); if (ret) { dev_err(bdc->dev, "bdc init ep fail: %d\n", ret); - return ret; + goto err0; } ret = usb_add_gadget_udc(bdc->dev, &bdc->gadget); @@ -571,6 +571,7 @@ int bdc_udc_init(struct bdc *bdc) err1: usb_del_gadget_udc(&bdc->gadget); err0: + free_irq(bdc->irq, bdc); bdc_free_ep(bdc); return ret; diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c index 51819a75925f..00cbb5d5fbc4 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -274,6 +274,7 @@ struct dummy { unsigned ints_enabled:1; unsigned udc_suspended:1; unsigned pullup:1; + unsigned fifo_req_busy:1; /* * HOST side support @@ -325,6 +326,26 @@ static inline struct dummy *gadget_dev_to_dummy(struct device *dev) /* DEVICE/GADGET SIDE UTILITY ROUTINES */ +/* + * Give back a gadget request with dum->lock dropped around the callback. + * If @req is the shared fifo_req, clear fifo_req_busy afterward: the flag + * was set in dummy_queue() when the shared request was taken and must stay + * set until its completion callback has returned; list_del_init() alone + * makes the request look idle while the callback is still running. + * Caller holds dum->lock and has already done list_del_init() + status. + */ +static void dummy_giveback(struct dummy *dum, struct usb_ep *_ep, + struct dummy_request *req) +{ + bool fifo = req == &dum->fifo_req; + + spin_unlock(&dum->lock); + usb_gadget_giveback_request(_ep, &req->req); + spin_lock(&dum->lock); + if (fifo) + dum->fifo_req_busy = 0; +} + /* called with spinlock held */ static void nuke(struct dummy *dum, struct dummy_ep *ep) { @@ -335,9 +356,7 @@ static void nuke(struct dummy *dum, struct dummy_ep *ep) list_del_init(&req->queue); req->req.status = -ESHUTDOWN; - spin_unlock(&dum->lock); - usb_gadget_giveback_request(&ep->ep, &req->req); - spin_lock(&dum->lock); + dummy_giveback(dum, &ep->ep, req); } } @@ -724,10 +743,11 @@ static int dummy_queue(struct usb_ep *_ep, struct usb_request *_req, /* implement an emulated single-request FIFO */ if (ep->desc && (ep->desc->bEndpointAddress & USB_DIR_IN) && - list_empty(&dum->fifo_req.queue) && + !dum->fifo_req_busy && list_empty(&ep->queue) && _req->length <= FIFO_SIZE) { req = &dum->fifo_req; + dum->fifo_req_busy = 1; req->req = *_req; req->req.buf = dum->fifo_buf; memcpy(dum->fifo_buf, _req->buf, _req->length); @@ -781,9 +801,7 @@ static int dummy_dequeue(struct usb_ep *_ep, struct usb_request *_req) dev_dbg(udc_dev(dum), "dequeued req %p from %s, len %d buf %p\n", req, _ep->name, _req->length, _req->buf); - spin_unlock(&dum->lock); - usb_gadget_giveback_request(_ep, _req); - spin_lock(&dum->lock); + dummy_giveback(dum, _ep, req); } spin_unlock_irqrestore(&dum->lock, flags); return retval; @@ -1516,9 +1534,7 @@ static int transfer(struct dummy_hcd *dum_hcd, struct urb *urb, if (req->req.status != -EINPROGRESS) { list_del_init(&req->queue); - spin_unlock(&dum->lock); - usb_gadget_giveback_request(&ep->ep, &req->req); - spin_lock(&dum->lock); + dummy_giveback(dum, &ep->ep, req); /* requests might have been unlinked... */ rescan = 1; @@ -1903,9 +1919,7 @@ static void dummy_timer(struct timer_list *t) dev_dbg(udc_dev(dum), "stale req = %p\n", req); - spin_unlock(&dum->lock); - usb_gadget_giveback_request(&ep->ep, &req->req); - spin_lock(&dum->lock); + dummy_giveback(dum, &ep->ep, req); ep->already_seen = 0; goto restart; } diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c index abe7c9a6ce23..a118bb99e070 100644 --- a/drivers/usb/gadget/udc/fsl_udc_core.c +++ b/drivers/usb/gadget/udc/fsl_udc_core.c @@ -2464,7 +2464,6 @@ static int fsl_udc_probe(struct platform_device *pdev) udc_controller->gadget.name = driver_name; /* Setup gadget.dev and register with kernel */ - dev_set_name(&udc_controller->gadget.dev, "gadget"); udc_controller->gadget.dev.of_node = pdev->dev.of_node; if (!IS_ERR_OR_NULL(udc_controller->transceiver)) diff --git a/drivers/usb/gadget/udc/snps_udc_core.c b/drivers/usb/gadget/udc/snps_udc_core.c index d046c09fa566..69f80790718a 100644 --- a/drivers/usb/gadget/udc/snps_udc_core.c +++ b/drivers/usb/gadget/udc/snps_udc_core.c @@ -3134,7 +3134,6 @@ int udc_probe(struct udc *dev) /* device struct setup */ dev->gadget.ops = &udc_ops; - dev_set_name(&dev->gadget.dev, "gadget"); dev->gadget.name = name; dev->gadget.max_speed = USB_SPEED_HIGH; diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 9c7491ac28f2..f8988f110dcf 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -338,6 +338,7 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == PCI_DEVICE_ID_VIA_VL805) { xhci->quirks |= XHCI_LPM_SUPPORT; xhci->quirks |= XHCI_TRB_OVERFETCH; + xhci->dma_mask_bits = 36; } if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA && diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 0ac438392545..823fe397bfb1 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -5398,6 +5398,7 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) if (xhci->hci_version > 0x100) xhci->hcc_params2 = readl(&xhci->cap_regs->hcc_params2); + xhci->dma_mask_bits = 64; /* xhci-plat or xhci-pci might have set max_interrupters already */ if ((!xhci->max_interrupters) || xhci->max_interrupters > HCS_MAX_INTRS(xhci->hcs_params1)) @@ -5438,12 +5439,16 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) if (xhci->quirks & XHCI_NO_64BIT_SUPPORT) xhci->hcc_params &= ~BIT(0); - /* Set dma_mask and coherent_dma_mask to 64-bits, - * if xHC supports 64-bit addressing */ + /* + * Set dma_mask and coherent_dma_mask to 64-bits if xHC supports + * 64-bit addressing, unless a controller-specific quirk callback + * limits the usable address width. + */ if (HCC_64BIT_ADDR(xhci->hcc_params) && - !dma_set_mask(dev, DMA_BIT_MASK(64))) { - xhci_dbg(xhci, "Enabling 64-bit DMA addresses.\n"); - dma_set_coherent_mask(dev, DMA_BIT_MASK(64)); + !dma_set_mask(dev, DMA_BIT_MASK(xhci->dma_mask_bits))) { + xhci_dbg(xhci, "Enabling %u-bit DMA addresses.\n", + xhci->dma_mask_bits); + dma_set_coherent_mask(dev, DMA_BIT_MASK(xhci->dma_mask_bits)); } else { /* * This is to avoid error in cases where a 32-bit USB diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index ac33baa2b0f8..96519c446778 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1544,6 +1544,7 @@ struct xhci_hcd { int event_ring_max; /* 4KB min, 128MB max */ int page_size; + unsigned int dma_mask_bits; /* Valid values are 12 to 20, inclusive */ int page_shift; /* msi-x vectors */ diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c index b76dccd952b8..3049201fc01a 100644 --- a/drivers/usb/serial/ftdi_sio.c +++ b/drivers/usb/serial/ftdi_sio.c @@ -1053,6 +1053,8 @@ static const struct usb_device_id id_table_combined[] = { { USB_DEVICE_INTERFACE_NUMBER(ALTERA_VID, ALTERA_UB3_602E_PID, 3) }, /* Abacus Electrics */ { USB_DEVICE(FTDI_VID, ABACUS_OPTICAL_PROBE_PID) }, + /* Endress+Hauser AG devices */ + { USB_DEVICE(FTDI_VID, FTDI_EH_FXA291_PID) }, { } /* Terminating entry */ }; diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h index 1bbd4d3f1950..0724b5375e85 100644 --- a/drivers/usb/serial/ftdi_sio_ids.h +++ b/drivers/usb/serial/ftdi_sio_ids.h @@ -306,6 +306,11 @@ #define FTDI_ELV_UDF77_PID 0xFB5E /* USB DCF Funkuhr (UDF 77) */ #define FTDI_ELV_UIO88_PID 0xFB5F /* USB-I/O Interface (UIO 88) */ +/* + * Endress+Hauser AG product ids (FTDI_VID) + */ +#define FTDI_EH_FXA291_PID 0xE510 + /* * EVER Eco Pro UPS (http://www.ever.com.pl/) */ diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c index dd924167e3fa..b308111a37b6 100644 --- a/drivers/usb/serial/io_edgeport.c +++ b/drivers/usb/serial/io_edgeport.c @@ -646,7 +646,8 @@ static void edge_interrupt_callback(struct urb *urb) if (edge_port && edge_port->open) { spin_lock_irqsave(&edge_port->ep_lock, flags); - edge_port->txCredits += txCredits; + edge_port->txCredits = min(edge_port->txCredits + txCredits, + edge_port->maxTxCredits); spin_unlock_irqrestore(&edge_port->ep_lock, flags); dev_dbg(dev, "%s - txcredits for port%d = %d\n", diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c index e5784a2c8932..fb20e10e4804 100644 --- a/drivers/usb/serial/keyspan_pda.c +++ b/drivers/usb/serial/keyspan_pda.c @@ -35,6 +35,8 @@ struct keyspan_pda_private { struct work_struct unthrottle_work; struct usb_serial *serial; struct usb_serial_port *port; + bool throttled; + bool throttle_req; }; static int keyspan_pda_write_start(struct usb_serial_port *port); @@ -159,6 +161,7 @@ static void keyspan_pda_rx_interrupt(struct urb *urb) int retval; int status = urb->status; struct keyspan_pda_private *priv; + bool throttled = false; unsigned long flags; priv = usb_get_serial_port_data(port); @@ -220,16 +223,24 @@ static void keyspan_pda_rx_interrupt(struct urb *urb) } exit: - retval = usb_submit_urb(urb, GFP_ATOMIC); - if (retval) - dev_err(&port->dev, - "%s - usb_submit_urb failed with result %d\n", - __func__, retval); + spin_lock_irqsave(&port->lock, flags); + if (priv->throttle_req) { + priv->throttled = true; + throttled = true; + } + spin_unlock_irqrestore(&port->lock, flags); + + if (!throttled) { + retval = usb_submit_urb(urb, GFP_ATOMIC); + if (retval) + dev_err(&port->dev, "failed to resubmit in urb: %d\n", retval); + } } static void keyspan_pda_rx_throttle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; + struct keyspan_pda_private *priv = usb_get_serial_port_data(port); /* * Stop receiving characters. We just turn off the URB request, and @@ -239,16 +250,29 @@ static void keyspan_pda_rx_throttle(struct tty_struct *tty) * send an XOFF, although it might make sense to foist that off upon * the device too. */ - usb_kill_urb(port->interrupt_in_urb); + spin_lock_irq(&port->lock); + priv->throttle_req = true; + spin_unlock_irq(&port->lock); } static void keyspan_pda_rx_unthrottle(struct tty_struct *tty) { struct usb_serial_port *port = tty->driver_data; + struct keyspan_pda_private *priv = usb_get_serial_port_data(port); + bool throttled; + int ret; - /* just restart the receive interrupt URB */ - if (usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL)) - dev_dbg(&port->dev, "usb_submit_urb(read urb) failed\n"); + spin_lock_irq(&port->lock); + throttled = priv->throttled; + priv->throttled = false; + priv->throttle_req = false; + spin_unlock_irq(&port->lock); + + if (throttled) { + ret = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); + if (ret) + dev_err(&port->dev, "failed to submit in urb: %d\n", ret); + } } static speed_t keyspan_pda_setbaud(struct usb_serial *serial, speed_t baud) @@ -585,6 +609,8 @@ static int keyspan_pda_open(struct tty_struct *tty, spin_lock_irq(&port->lock); priv->tx_room = rc; + priv->throttled = false; + priv->throttle_req = false; spin_unlock_irq(&port->lock); rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL); diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 47c5069a125c..500472b34855 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -2497,6 +2497,7 @@ static const struct usb_device_id option_ids[] = { .driver_info = RSVD(5) }, { USB_DEVICE_INTERFACE_CLASS(0x33f8, 0x1003, 0xff), /* Rolling RW135R-GL (laptop MBIM) */ .driver_info = RSVD(5) }, + { USB_DEVICE_INTERFACE_CLASS(0x3466, 0x3301, 0xff) }, /* TDTECH MT5710-CN */ { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x30) }, /* NetPrisma LCUK54-WWD for Global */ { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0x00, 0x40) }, { USB_DEVICE_AND_INTERFACE_INFO(0x3731, 0x0100, 0xff, 0xff, 0x40) }, diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index f5614709e08a..79f69f0e61d1 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -395,6 +395,13 @@ UNUSUAL_DEV( 0x04b3, 0x4001, 0x0110, 0x0110, USB_SC_DEVICE, USB_PR_CB, NULL, US_FL_MAX_SECTORS_MIN), +/* Reported by Ai Chao */ +UNUSUAL_DEV( 0x04b4, 0xb708, 0x0000, 0xffff, + "Longmai Technologies", + "USB Key", + USB_SC_SCSI, USB_PR_BULK, NULL, + US_FL_NO_ATA_1X), + /* * Reported by Simon Levitt * This entry needs Sub and Proto fields diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 17907e61f8e0..080413757eea 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -717,6 +717,7 @@ static int vhost_vdpa_pa_map(struct vhost_vdpa *v, unsigned int gup_flags = FOLL_LONGTERM; unsigned long npages, cur_base, map_pfn, last_pfn = 0; unsigned long lock_limit, sz2pin, nchunks, i; + unsigned long page_offset; u64 start = iova; long pinned; int ret = 0; @@ -729,7 +730,13 @@ static int vhost_vdpa_pa_map(struct vhost_vdpa *v, if (perm & VHOST_ACCESS_WO) gup_flags |= FOLL_WRITE; - npages = PFN_UP(size + (iova & ~PAGE_MASK)); + page_offset = iova & ~PAGE_MASK; + if (size > ULONG_MAX - page_offset) { + ret = -EINVAL; + goto free; + } + + npages = PFN_UP(size + page_offset); if (!npages) { ret = -EINVAL; goto free; diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 9f6e41e28d6a..d8c81c25b747 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -1582,6 +1582,14 @@ static long vhost_vring_set_num_addr(struct vhost_dev *d, BUG(); } + /* + * The metadata cache holds the IOTLB mapping that backed the previous + * desc/avail/used addresses and vring size, both of which are being + * replaced here. iotlb_access_ok() takes a cache hit as proof that the + * region was validated, so the stale entries have to go. + */ + __vhost_vq_meta_reset(vq); + mutex_unlock(&vq->mutex); return r; diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c index 8563264d11fa..036e0ffca08a 100644 --- a/drivers/video/fbdev/core/bitblit.c +++ b/drivers/video/fbdev/core/bitblit.c @@ -274,9 +274,14 @@ static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode, if (!vc->vc_font.data) return; - c = scr_readw((u16 *) vc->vc_pos); + c = scr_readw((u16 *) vc->vc_pos); attribute = get_attribute(info, c); - src = vc->vc_font.data + ((c & charmask) * (w * vc->vc_font.height)); + c &= charmask; + + /* Clamp to font size, same as bit_putcs_aligned() */ + if (c >= vc->vc_font.charcount) + c = 0; + src = vc->vc_font.data + (c * (w * vc->vc_font.height)); if (ops->cursor_state.image.data != src || ops->cursor_reset) { diff --git a/drivers/watchdog/watchdog_pretimeout.c b/drivers/watchdog/watchdog_pretimeout.c index 376a495ab80c..3c109f1db8f0 100644 --- a/drivers/watchdog/watchdog_pretimeout.c +++ b/drivers/watchdog/watchdog_pretimeout.c @@ -165,6 +165,8 @@ void watchdog_unregister_governor(struct watchdog_governor *gov) } spin_lock_irq(&pretimeout_lock); + if (default_gov == gov) + default_gov = NULL; list_for_each_entry(p, &pretimeout_list, entry) if (p->wdd->gov == gov) p->wdd->gov = default_gov; diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c index a7084a720b28..425cfbef4e5e 100644 --- a/fs/binfmt_elf_fdpic.c +++ b/fs/binfmt_elf_fdpic.c @@ -231,6 +231,10 @@ static int load_elf_fdpic_binary(struct linux_binprm *bprm) for (i = 0; i < exec_params.hdr.e_phnum; i++, phdr++) { switch (phdr->p_type) { case PT_INTERP: + /* elf ABI allows only one interpreter */ + if (interpreter_name) + continue; + retval = -ENOMEM; if (phdr->p_filesz > PATH_MAX) goto error; diff --git a/fs/binfmt_misc.c b/fs/binfmt_misc.c index 05c235309421..a26ae2ca96e8 100644 --- a/fs/binfmt_misc.c +++ b/fs/binfmt_misc.c @@ -199,9 +199,6 @@ static int load_misc_binary(struct linux_binprm *bprm) goto ret; } - if (fmt->flags & MISC_FMT_OPEN_BINARY) - bprm->have_execfd = 1; - /* make argv[1] be the path to the binary */ retval = copy_string_kernel(bprm->interp, bprm); if (retval < 0) @@ -231,6 +228,8 @@ static int load_misc_binary(struct linux_binprm *bprm) goto ret; bprm->interpreter = interp_file; + if (fmt->flags & MISC_FMT_OPEN_BINARY) + bprm->have_execfd = 1; if (fmt->flags & MISC_FMT_CREDENTIALS) bprm->execfd_creds = 1; @@ -348,6 +347,10 @@ static Node *create_entry(const char __user *buffer, size_t count) pr_debug("register: delim: %#x {%c}\n", del, del); + /* A flag-char delimiter runs the flag scan off the buffer. */ + if (del == 'P' || del == 'O' || del == 'C' || del == 'F') + goto einval; + /* Pad the buffer with the delim to simplify parsing below. */ memset(buf + count, del, 8); diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index ed8729c99088..3ffcb6217b53 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -528,6 +528,9 @@ static int io_ctl_check_crc(struct btrfs_io_ctl *io_ctl, int index) u32 crc = ~(u32)0; unsigned offset = 0; + if (index >= io_ctl->num_pages) + return -EIO; + if (index == 0) offset = sizeof(u32) * io_ctl->num_pages; diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c index e66ec0c23153..06cf94683401 100644 --- a/fs/btrfs/relocation.c +++ b/fs/btrfs/relocation.c @@ -642,6 +642,7 @@ static int __must_check __add_reloc_root(struct btrfs_root *root) btrfs_err(fs_info, "Duplicate root found for start=%llu while inserting into relocation tree", node->bytenr); + kfree(node); return -EEXIST; } @@ -2047,6 +2048,7 @@ void merge_reloc_roots(struct reloc_control *rc) * corruption, e.g. bad reloc tree key offset. */ ret = -EINVAL; + btrfs_put_root(root); goto out; } ret = merge_reloc_root(rc, root); diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index e37e9fa457af..271f5a76af03 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -4067,6 +4067,7 @@ void ceph_handle_caps(struct ceph_mds_session *session, snaptrace = h + 1; snaptrace_len = le32_to_cpu(h->snap_trace_len); + ceph_decode_need(&snaptrace, end, snaptrace_len, bad); p = snaptrace + snaptrace_len; if (msg_version >= 2) { diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index e6541bd5c63d..11a400663b9f 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -1661,8 +1661,10 @@ CIFSSMBRead(const unsigned int xid, struct cifs_io_parms *io_parms, pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid >> 16)); /* tcon and ses pointer are checked in smb_init */ - if (tcon->ses->server == NULL) + if (!tcon->ses->server) { + cifs_small_buf_release(pSMB); return -ECONNABORTED; + } pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = netfid; @@ -1774,8 +1776,10 @@ CIFSSMBWrite(const unsigned int xid, struct cifs_io_parms *io_parms, pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid >> 16)); /* tcon and ses pointer are checked in smb_init */ - if (tcon->ses->server == NULL) + if (!tcon->ses->server) { + cifs_buf_release(pSMB); return -ECONNABORTED; + } pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = netfid; @@ -2205,8 +2209,10 @@ CIFSSMBWrite2(const unsigned int xid, struct cifs_io_parms *io_parms, pSMB->hdr.PidHigh = cpu_to_le16((__u16)(pid >> 16)); /* tcon and ses pointer are checked in smb_init */ - if (tcon->ses->server == NULL) + if (!tcon->ses->server) { + cifs_small_buf_release(pSMB); return -ECONNABORTED; + } pSMB->AndXCommand = 0xFF; /* none */ pSMB->Fid = netfid; diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c index 5d80ab4fa087..3aaa45375d8b 100644 --- a/fs/cifs/smb2ops.c +++ b/fs/cifs/smb2ops.c @@ -3721,6 +3721,7 @@ static int smb3_simple_fallocate_range(unsigned int xid, struct file_allocated_range_buffer in_data, *out_data = NULL, *tmp_data; u32 out_data_len; char *buf = NULL; + u64 range_start, range_len, range_end; loff_t l; int rc; @@ -3757,13 +3758,21 @@ static int smb3_simple_fallocate_range(unsigned int xid, goto out; } - if (off < le64_to_cpu(tmp_data->file_offset)) { + range_start = le64_to_cpu(tmp_data->file_offset); + range_len = le64_to_cpu(tmp_data->length); + if (check_add_overflow(range_start, range_len, &range_end) || + range_end > S64_MAX) { + rc = -EINVAL; + goto out; + } + + if (off < range_start) { /* * We are at a hole. Write until the end of the region * or until the next allocated data, * whichever comes next. */ - l = le64_to_cpu(tmp_data->file_offset) - off; + l = range_start - off; if (len < l) l = len; rc = smb3_simple_fallocate_write_range(xid, tcon, @@ -3780,11 +3789,13 @@ static int smb3_simple_fallocate_range(unsigned int xid, * until the end of the data or the end of the region * we are supposed to fallocate, whichever comes first. */ - l = le64_to_cpu(tmp_data->length); - if (len < l) - l = len; - off += l; - len -= l; + if (off < range_end) { + l = range_end - off; + if (len < l) + l = len; + off += l; + len -= l; + } tmp_data = &tmp_data[1]; out_data_len -= sizeof(struct file_allocated_range_buffer); diff --git a/fs/crypto/fscrypt_private.h b/fs/crypto/fscrypt_private.h index 373c434b375c..555d942342cc 100644 --- a/fs/crypto/fscrypt_private.h +++ b/fs/crypto/fscrypt_private.h @@ -402,6 +402,19 @@ fscrypt_is_key_prepared(struct fscrypt_prepared_key *prep_key, /* keyring.c */ +/* + * fscrypt_master_key_user - a user's claim to a master key + */ +struct fscrypt_master_key_user { + struct list_head link; + kuid_t uid; + /* + * This 'struct key' contains no secret. It exists solely to charge the + * appropriate user's key quota. + */ + struct key *quota_key; +}; + /* * fscrypt_master_key_secret - secret key material of an in-use master key */ @@ -488,19 +501,18 @@ struct fscrypt_master_key { struct fscrypt_key_specifier mk_spec; /* - * Keyring which contains a key of type 'key_type_fscrypt_user' for each - * user who has added this key. Normally each key will be added by just - * one user, but it's possible that multiple users share a key, and in - * that case we need to keep track of those users so that one user can't - * remove the key before the others want it removed too. + * List of user claims to this key (struct fscrypt_master_key_user). + * Normally each key will be added by just one user, but it's possible + * that multiple users share a key, and in that case we need to keep + * track of those users so that one user can't remove the key before the + * others want it removed too. * - * This is NULL for v1 policy keys; those can only be added by root. + * Used only for v2 policy keys. v1 policy keys can be added only by + * root, so user tracking doesn't apply to them. * - * Locking: protected by ->mk_sem. (We don't just rely on the keyrings - * subsystem semaphore ->mk_users->sem, as we need support for atomic - * search+insert along with proper synchronization with ->mk_secret.) + * Locking: protected by ->mk_sem. */ - struct key *mk_users; + struct list_head mk_users; /* * List of inodes that were unlocked using this key. This allows the diff --git a/fs/crypto/keyring.c b/fs/crypto/keyring.c index 02f8bf8bd54d..51cd45785f0c 100644 --- a/fs/crypto/keyring.c +++ b/fs/crypto/keyring.c @@ -64,18 +64,19 @@ static void fscrypt_free_master_key(struct rcu_head *head) kfree_sensitive(mk); } +static void clear_mk_users(struct fscrypt_master_key *mk); + void fscrypt_put_master_key(struct fscrypt_master_key *mk) { if (!refcount_dec_and_test(&mk->mk_struct_refs)) return; /* - * No structural references left, so free ->mk_users, and also free the + * No structural references left, so clear ->mk_users, and also free the * fscrypt_master_key struct itself after an RCU grace period ensures * that concurrent keyring lookups can no longer find it. */ WARN_ON(refcount_read(&mk->mk_active_refs) != 0); - key_put(mk->mk_users); - mk->mk_users = NULL; + clear_mk_users(mk); call_rcu(&mk->mk_rcu_head, fscrypt_free_master_key); } @@ -141,8 +142,8 @@ static void fscrypt_user_key_describe(const struct key *key, struct seq_file *m) } /* - * Type of key in ->mk_users. Each key of this type represents a particular - * user who has added a particular master key. + * Type of fscrypt_master_key_user::quota_key. This contains no secret; it + * exists solely to charge a user's key quota. * * Note that the name of this key type really should be something like * ".fscrypt-user" instead of simply ".fscrypt". But the shorter name is chosen @@ -156,30 +157,9 @@ static struct key_type key_type_fscrypt_user = { .describe = fscrypt_user_key_describe, }; -#define FSCRYPT_MK_USERS_DESCRIPTION_SIZE \ - (CONST_STRLEN("fscrypt-") + 2 * FSCRYPT_KEY_IDENTIFIER_SIZE + \ - CONST_STRLEN("-users") + 1) - #define FSCRYPT_MK_USER_DESCRIPTION_SIZE \ (2 * FSCRYPT_KEY_IDENTIFIER_SIZE + CONST_STRLEN(".uid.") + 10 + 1) -static void format_mk_users_keyring_description( - char description[FSCRYPT_MK_USERS_DESCRIPTION_SIZE], - const u8 mk_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE]) -{ - sprintf(description, "fscrypt-%*phN-users", - FSCRYPT_KEY_IDENTIFIER_SIZE, mk_identifier); -} - -static void format_mk_user_description( - char description[FSCRYPT_MK_USER_DESCRIPTION_SIZE], - const u8 mk_identifier[FSCRYPT_KEY_IDENTIFIER_SIZE]) -{ - - sprintf(description, "%*phN.uid.%u", FSCRYPT_KEY_IDENTIFIER_SIZE, - mk_identifier, __kuid_val(current_fsuid())); -} - /* Create ->s_master_keys if needed. Synchronized by fscrypt_add_key_mutex. */ static int allocate_filesystem_keyring(struct super_block *sb) { @@ -318,91 +298,94 @@ fscrypt_find_master_key(struct super_block *sb, return mk; } -static int allocate_master_key_users_keyring(struct fscrypt_master_key *mk) +/* Find the current user's claim in ->mk_users. ->mk_sem must be held. */ +static struct fscrypt_master_key_user * +find_master_key_user(struct fscrypt_master_key *mk) { - char description[FSCRYPT_MK_USERS_DESCRIPTION_SIZE]; - struct key *keyring; - - format_mk_users_keyring_description(description, - mk->mk_spec.u.identifier); - keyring = keyring_alloc(description, GLOBAL_ROOT_UID, GLOBAL_ROOT_GID, - current_cred(), KEY_POS_SEARCH | - KEY_USR_SEARCH | KEY_USR_READ | KEY_USR_VIEW, - KEY_ALLOC_NOT_IN_QUOTA, NULL, NULL); - if (IS_ERR(keyring)) - return PTR_ERR(keyring); - - mk->mk_users = keyring; - return 0; -} + struct fscrypt_master_key_user *mk_user; + kuid_t uid = current_fsuid(); -/* - * Find the current user's "key" in the master key's ->mk_users. - * Returns ERR_PTR(-ENOKEY) if not found. - */ -static struct key *find_master_key_user(struct fscrypt_master_key *mk) -{ - char description[FSCRYPT_MK_USER_DESCRIPTION_SIZE]; - key_ref_t keyref; - - format_mk_user_description(description, mk->mk_spec.u.identifier); - - /* - * We need to mark the keyring reference as "possessed" so that we - * acquire permission to search it, via the KEY_POS_SEARCH permission. - */ - keyref = keyring_search(make_key_ref(mk->mk_users, true /*possessed*/), - &key_type_fscrypt_user, description, false); - if (IS_ERR(keyref)) { - if (PTR_ERR(keyref) == -EAGAIN || /* not found */ - PTR_ERR(keyref) == -EKEYREVOKED) /* recently invalidated */ - keyref = ERR_PTR(-ENOKEY); - return ERR_CAST(keyref); + list_for_each_entry(mk_user, &mk->mk_users, link) { + if (uid_eq(mk_user->uid, uid)) + return mk_user; } - return key_ref_to_ptr(keyref); + return NULL; } /* - * Give the current user a "key" in ->mk_users. This charges the user's quota + * Give the current user a claim in ->mk_users. This charges the user's quota * and marks the master key as added by the current user, so that it cannot be * removed by another user with the key. Either ->mk_sem must be held for * write, or the master key must be still undergoing initialization. */ static int add_master_key_user(struct fscrypt_master_key *mk) { + kuid_t uid = current_fsuid(); char description[FSCRYPT_MK_USER_DESCRIPTION_SIZE]; - struct key *mk_user; + struct key *quota_key; + struct fscrypt_master_key_user *mk_user; int err; - format_mk_user_description(description, mk->mk_spec.u.identifier); - mk_user = key_alloc(&key_type_fscrypt_user, description, - current_fsuid(), current_gid(), current_cred(), - KEY_POS_SEARCH | KEY_USR_VIEW, 0, NULL); - if (IS_ERR(mk_user)) - return PTR_ERR(mk_user); + snprintf(description, sizeof(description), "%*phN.uid.%u", + FSCRYPT_KEY_IDENTIFIER_SIZE, mk->mk_spec.u.identifier, + __kuid_val(uid)); + quota_key = key_alloc(&key_type_fscrypt_user, description, uid, + current_gid(), current_cred(), + KEY_POS_SEARCH | KEY_USR_VIEW, 0, NULL); + if (IS_ERR(quota_key)) + return PTR_ERR(quota_key); + + err = key_instantiate_and_link(quota_key, NULL, 0, NULL, NULL); + if (err) { + key_put(quota_key); + return err; + } - err = key_instantiate_and_link(mk_user, NULL, 0, mk->mk_users, NULL); - key_put(mk_user); - return err; + mk_user = kzalloc(sizeof(*mk_user), GFP_KERNEL); + if (!mk_user) { + key_put(quota_key); + return -ENOMEM; + } + mk_user->uid = uid; + mk_user->quota_key = quota_key; + list_add(&mk_user->link, &mk->mk_users); + return 0; +} + +static void unlink_and_free_mk_user(struct fscrypt_master_key_user *mk_user) +{ + list_del(&mk_user->link); + key_put(mk_user->quota_key); + kfree(mk_user); } /* - * Remove the current user's "key" from ->mk_users. + * Remove the current user's claim from ->mk_users. * ->mk_sem must be held for write. * - * Returns 0 if removed, -ENOKEY if not found, or another -errno code. + * Returns 0 if removed or -ENOKEY if not found. */ static int remove_master_key_user(struct fscrypt_master_key *mk) { - struct key *mk_user; - int err; + struct fscrypt_master_key_user *mk_user; mk_user = find_master_key_user(mk); - if (IS_ERR(mk_user)) - return PTR_ERR(mk_user); - err = key_unlink(mk->mk_users, mk_user); - key_put(mk_user); - return err; + if (!mk_user) + return -ENOKEY; + unlink_and_free_mk_user(mk_user); + return 0; +} + +/* + * Clear ->mk_users. Either ->mk_sem must be held for write, or 'mk' must have + * no structural references left. + */ +static void clear_mk_users(struct fscrypt_master_key *mk) +{ + struct fscrypt_master_key_user *mk_user, *tmp; + + list_for_each_entry_safe(mk_user, tmp, &mk->mk_users, link) + unlink_and_free_mk_user(mk_user); } /* @@ -426,13 +409,12 @@ static int add_new_master_key(struct super_block *sb, refcount_set(&mk->mk_struct_refs, 1); mk->mk_spec = *mk_spec; + INIT_LIST_HEAD(&mk->mk_users); + INIT_LIST_HEAD(&mk->mk_decrypted_inodes); spin_lock_init(&mk->mk_decrypted_inodes_lock); if (mk_spec->type == FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER) { - err = allocate_master_key_users_keyring(mk); - if (err) - goto out_put; err = add_master_key_user(mk); if (err) goto out_put; @@ -460,19 +442,13 @@ static int add_existing_master_key(struct fscrypt_master_key *mk, int err; /* - * If the current user is already in ->mk_users, then there's nothing to - * do. Otherwise, we need to add the user to ->mk_users. (Neither is - * applicable for v1 policy keys, which have NULL ->mk_users.) + * For v2 policy keys (FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER): If the current + * user is already in ->mk_users, then there's nothing to do. + * Otherwise, add the user to ->mk_users. */ - if (mk->mk_users) { - struct key *mk_user = find_master_key_user(mk); - - if (mk_user != ERR_PTR(-ENOKEY)) { - if (IS_ERR(mk_user)) - return PTR_ERR(mk_user); - key_put(mk_user); + if (mk->mk_spec.type == FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER) { + if (find_master_key_user(mk) != NULL) return 0; - } err = add_master_key_user(mk); if (err) return err; @@ -787,7 +763,6 @@ int fscrypt_verify_key_added(struct super_block *sb, { struct fscrypt_key_specifier mk_spec; struct fscrypt_master_key *mk; - struct key *mk_user; int err; mk_spec.type = FSCRYPT_KEY_SPEC_TYPE_IDENTIFIER; @@ -799,13 +774,10 @@ int fscrypt_verify_key_added(struct super_block *sb, goto out; } down_read(&mk->mk_sem); - mk_user = find_master_key_user(mk); - if (IS_ERR(mk_user)) { - err = PTR_ERR(mk_user); - } else { - key_put(mk_user); + if (find_master_key_user(mk) != NULL) err = 0; - } + else + err = -ENOKEY; up_read(&mk->mk_sem); fscrypt_put_master_key(mk); out: @@ -998,16 +970,18 @@ static int do_remove_key(struct file *filp, void __user *_uarg, bool all_users) down_write(&mk->mk_sem); /* If relevant, remove current user's (or all users) claim to the key */ - if (mk->mk_users && mk->mk_users->keys.nr_leaves_on_tree != 0) { - if (all_users) - err = keyring_clear(mk->mk_users); - else + if (!list_empty(&mk->mk_users)) { + if (all_users) { + clear_mk_users(mk); + err = 0; + } else { err = remove_master_key_user(mk); + } if (err) { up_write(&mk->mk_sem); goto out_put_key; } - if (mk->mk_users->keys.nr_leaves_on_tree != 0) { + if (!list_empty(&mk->mk_users)) { /* * Other users have still added the key too. We removed * the current user's claim to the key, but we still @@ -1095,6 +1069,8 @@ int fscrypt_ioctl_get_key_status(struct file *filp, void __user *uarg) struct super_block *sb = file_inode(filp)->i_sb; struct fscrypt_get_key_status_arg arg; struct fscrypt_master_key *mk; + kuid_t uid; + const struct fscrypt_master_key_user *mk_user; int err; if (copy_from_user(&arg, uarg, sizeof(arg))) @@ -1127,19 +1103,13 @@ int fscrypt_ioctl_get_key_status(struct file *filp, void __user *uarg) } arg.status = FSCRYPT_KEY_STATUS_PRESENT; - if (mk->mk_users) { - struct key *mk_user; - arg.user_count = mk->mk_users->keys.nr_leaves_on_tree; - mk_user = find_master_key_user(mk); - if (!IS_ERR(mk_user)) { + uid = current_fsuid(); + list_for_each_entry(mk_user, &mk->mk_users, link) { + arg.user_count++; + if (uid_eq(mk_user->uid, uid)) arg.status_flags |= FSCRYPT_KEY_STATUS_FLAG_ADDED_BY_SELF; - key_put(mk_user); - } else if (mk_user != ERR_PTR(-ENOKEY)) { - err = PTR_ERR(mk_user); - goto out_release_key; - } } err = 0; out_release_key: diff --git a/fs/exec.c b/fs/exec.c index 4d5defc2966b..d3418ca9e5b0 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -876,7 +876,7 @@ int transfer_args_to_stack(struct linux_binprm *bprm, stop = bprm->p >> PAGE_SHIFT; sp = *sp_location; - for (index = MAX_ARG_PAGES - 1; index >= stop; index--) { + for (index = MAX_ARG_PAGES; index-- > stop; ) { unsigned int offset = index == stop ? bprm->p & ~PAGE_MASK : 0; char *src = kmap(bprm->page[index]) + offset; sp -= PAGE_SIZE - offset; diff --git a/fs/ksmbd/smb2misc.c b/fs/ksmbd/smb2misc.c index 9e54ecc9d4ad..8d7368ccda85 100644 --- a/fs/ksmbd/smb2misc.c +++ b/fs/ksmbd/smb2misc.c @@ -399,6 +399,11 @@ int ksmbd_smb2_check_message(struct ksmbd_work *work) return 1; } + if (len < __SMB2_HEADER_STRUCTURE_SIZE + sizeof(__le16)) { + ksmbd_debug(SMB, "Message is too small for StructureSize2\n"); + return 1; + } + if (smb2_req_struct_sizes[command] != pdu->StructureSize2) { if (!(command == SMB2_OPLOCK_BREAK_HE && (le16_to_cpu(pdu->StructureSize2) == OP_BREAK_STRUCT_SIZE_20 || diff --git a/fs/namespace.c b/fs/namespace.c index ae1b8530eb93..2c502d554f61 100644 --- a/fs/namespace.c +++ b/fs/namespace.c @@ -3700,6 +3700,11 @@ SYSCALL_DEFINE3(fsmount, int, fs_fd, unsigned int, flags, ret = PTR_ERR(newmount.mnt); goto err_unlock; } + if (newmount.mnt->mnt_sb->s_flags & SB_NOUSER) { + mntput(newmount.mnt); + ret = -EINVAL; + goto err_unlock; + } newmount.dentry = dget(fc->root); newmount.mnt->mnt_flags = mnt_flags; diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index cd97312860ce..25aaae1d6345 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -10294,6 +10294,11 @@ static void nfs41_free_stateid_done(struct rpc_task *task, void *calldata) static void nfs41_free_stateid_release(void *calldata) { + struct nfs_free_stateid_data *data = calldata; + struct nfs_client *clp = data->server->nfs_client; + + nfs_sb_deactive(data->server->super); + nfs_put_client(clp); kfree(calldata); } @@ -10330,6 +10335,14 @@ static int nfs41_free_stateid(struct nfs_server *server, }; struct nfs_free_stateid_data *data; struct rpc_task *task; + struct nfs_client *clp = server->nfs_client; + + if (!refcount_inc_not_zero(&clp->cl_count)) + return -EIO; + if (!nfs_sb_active(server->super)) { + nfs_put_client(clp); + return -EIO; + } nfs4_state_protect(server->nfs_client, NFS_SP4_MACH_CRED_STATEID, &task_setup.rpc_client, &msg); diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c index 2a3fc96ca622..203d3363e3d5 100644 --- a/fs/proc/namespaces.c +++ b/fs/proc/namespaces.c @@ -46,7 +46,7 @@ static const char *proc_ns_get_link(struct dentry *dentry, const struct proc_ns_operations *ns_ops = PROC_I(inode)->ns_ops; struct task_struct *task; struct path ns_path; - int error = -EACCES; + int error; if (!dentry) return ERR_PTR(-ECHILD); @@ -59,6 +59,7 @@ static const char *proc_ns_get_link(struct dentry *dentry, if (error) goto out_put_task; + error = -EACCES; if (!ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) goto out; @@ -90,6 +91,7 @@ static int proc_ns_readlink(struct dentry *dentry, char __user *buffer, int bufl if (res) goto out_put_task; + res = -EACCES; if (ptrace_may_access(task, PTRACE_MODE_READ_FSCREDS)) { res = ns_get_name(name, sizeof(name), task, ns_ops); if (res >= 0) diff --git a/include/linux/dma/qcom_bam_dma.h b/include/linux/dma/qcom_bam_dma.h index 68fc0e643b1b..d9d07a9ab313 100644 --- a/include/linux/dma/qcom_bam_dma.h +++ b/include/linux/dma/qcom_bam_dma.h @@ -13,9 +13,12 @@ * supported by BAM DMA Engine. * * @cmd_and_addr - upper 8 bits command and lower 24 bits register address. - * @data - for write command: content to be written into peripheral register. - * for read command: dest addr to write peripheral register value. - * @mask - register mask. + * @data - For write command: content to be written into peripheral register. + * For read command: lower 32 bits of destination address. + * @mask - For write command: register write mask. + * For read command on BAM v1.6.0+: upper 4 bits of destination address. + * For read command on BAM < v1.6.0: ignored by hardware. + * Setting to 0 ensures 32-bit addressing compatibility. * @reserved - for future usage. * */ @@ -42,6 +45,10 @@ enum bam_command_type { * @addr: target address * @cmd: BAM command * @data: actual data for write and dest addr for read in le32 + * + * For BAM v1.6.0+, the mask field behavior depends on command type: + * - Write commands: mask = write mask (typically 0xffffffff) + * - Read commands: mask = upper 4 bits of destination address (0 for 32-bit) */ static inline void bam_prep_ce_le32(struct bam_cmd_element *bam_ce, u32 addr, @@ -50,7 +57,11 @@ bam_prep_ce_le32(struct bam_cmd_element *bam_ce, u32 addr, bam_ce->cmd_and_addr = cpu_to_le32((addr & 0xffffff) | ((cmd & 0xff) << 24)); bam_ce->data = data; - bam_ce->mask = cpu_to_le32(0xffffffff); + if (cmd == BAM_READ_COMMAND) + bam_ce->mask = cpu_to_le32(0x0); /* 32-bit addressing */ + else + bam_ce->mask = cpu_to_le32(0xffffffff); /* Write mask */ + bam_ce->reserved = 0; } /* @@ -60,7 +71,7 @@ bam_prep_ce_le32(struct bam_cmd_element *bam_ce, u32 addr, * @bam_ce: BAM command element * @addr: target address * @cmd: BAM command - * @data: actual data for write and dest addr for read + * @data: actual data for write and destination address for read */ static inline void bam_prep_ce(struct bam_cmd_element *bam_ce, u32 addr, diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index dddb866d8807..ae79df28174e 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3333,11 +3333,6 @@ static inline bool dev_validate_header(const struct net_device *dev, if (len < dev->min_header_len) return false; - if (capable(CAP_SYS_RAWIO)) { - memset(ll_header + len, 0, dev->hard_header_len - len); - return true; - } - if (dev->header_ops && dev->header_ops->validate) return dev->header_ops->validate(ll_header, len); diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h index c620521c42bc..dfb9708f5340 100644 --- a/include/linux/netfilter/nf_conntrack_sip.h +++ b/include/linux/netfilter/nf_conntrack_sip.h @@ -115,7 +115,7 @@ struct nf_nat_sip_hooks { unsigned int *datalen); void (*seq_adjust)(struct sk_buff *skb, - unsigned int protoff, s16 off); + unsigned int protoff, s32 off); unsigned int (*expect)(struct sk_buff *skb, unsigned int protoff, diff --git a/include/linux/vtime.h b/include/linux/vtime.h index 3684487d01e1..7cee518fde3a 100644 --- a/include/linux/vtime.h +++ b/include/linux/vtime.h @@ -37,11 +37,17 @@ extern void vtime_account_irq(struct task_struct *tsk, unsigned int offset); extern void vtime_account_softirq(struct task_struct *tsk); extern void vtime_account_hardirq(struct task_struct *tsk); extern void vtime_flush(struct task_struct *tsk); +extern void vtime_reset(void); +extern void vtime_dyntick_start(void); +extern void vtime_dyntick_stop(void); #else /* !CONFIG_VIRT_CPU_ACCOUNTING_NATIVE */ static inline void vtime_account_irq(struct task_struct *tsk, unsigned int offset) { } static inline void vtime_account_softirq(struct task_struct *tsk) { } static inline void vtime_account_hardirq(struct task_struct *tsk) { } static inline void vtime_flush(struct task_struct *tsk) { } +static inline void vtime_reset(void) { } +static inline void vtime_dyntick_start(void) { } +static inline void vtime_dyntick_stop(void) { } #endif /* diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h index 3b5986cee073..f1901e592b63 100644 --- a/include/media/videobuf2-core.h +++ b/include/media/videobuf2-core.h @@ -1044,8 +1044,8 @@ __poll_t vb2_core_poll(struct vb2_queue *q, struct file *file, * @ppos: file handle position tracking pointer * @nonblock: mode selector (1 means blocking calls, 0 means nonblocking) */ -size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count, - loff_t *ppos, int nonblock); +ssize_t vb2_read(struct vb2_queue *q, char __user *data, size_t count, + loff_t *ppos, int nonblock); /** * vb2_write() - implements write() syscall logic. * @q: pointer to &struct vb2_queue with videobuf2 queue. @@ -1054,8 +1054,8 @@ size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count, * @ppos: file handle position tracking pointer * @nonblock: mode selector (1 means blocking calls, 0 means nonblocking) */ -size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count, - loff_t *ppos, int nonblock); +ssize_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count, + loff_t *ppos, int nonblock); /** * typedef vb2_thread_fnc - callback function for use with vb2_thread. diff --git a/include/net/act_api.h b/include/net/act_api.h index 29d5dc201b5c..47b0a8feaa71 100644 --- a/include/net/act_api.h +++ b/include/net/act_api.h @@ -249,6 +249,25 @@ int tcf_action_check_ctrlact(int action, struct tcf_proto *tp, struct tcf_chain *tcf_action_set_ctrlact(struct tc_action *a, int action, struct tcf_chain *newchain); +/* Range check for a control action supplied by user space. + * + * This is the same test tcf_action_check_ctrlact() applies to the primary + * control action, factored out for the *fallback* control actions + * (act_gact's TCA_GACT_PROB.paction and act_police's TCA_POLICE_RESULT), + * which must not reach tcf_action_check_ctrlact() because they have no + * goto_chain to allocate. Without it, user space can store kernel-internal + * verdicts such as TC_ACT_CONSUMED, which is TC_ACT_VALUE_MAX + 1 and is + * deliberately not part of the UAPI value range. + */ +static inline bool tcf_action_valid(int action) +{ + int opcode = TC_ACT_EXT_OPCODE(action); + + if (!opcode) + return action <= TC_ACT_VALUE_MAX; + return opcode <= TC_ACT_EXT_OPCODE_MAX || action == TC_ACT_UNSPEC; +} + #ifdef CONFIG_INET DECLARE_STATIC_KEY_FALSE(tcf_frag_xmit_count); #endif diff --git a/include/net/addrconf.h b/include/net/addrconf.h index 71abf4cc6a32..cda93578a41b 100644 --- a/include/net/addrconf.h +++ b/include/net/addrconf.h @@ -368,8 +368,8 @@ static inline struct inet6_dev *in6_dev_get(const struct net_device *dev) rcu_read_lock(); idev = rcu_dereference(dev->ip6_ptr); - if (idev) - refcount_inc(&idev->refcnt); + if (idev && !refcount_inc_not_zero(&idev->refcnt)) + idev = NULL; rcu_read_unlock(); return idev; } diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h index beb690a162ff..57315b9dc059 100644 --- a/include/net/bluetooth/l2cap.h +++ b/include/net/bluetooth/l2cap.h @@ -776,6 +776,7 @@ enum { FLAG_ECRED_CONN_REQ_SENT, FLAG_PENDING_SECURITY, FLAG_HOLD_HCI_CONN, + FLAG_DEL, }; /* Lock nesting levels for L2CAP channels. We need these because lockdep diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h index 99d26879b02a..ba8d3702853d 100644 --- a/include/net/bluetooth/rfcomm.h +++ b/include/net/bluetooth/rfcomm.h @@ -229,6 +229,9 @@ int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci, u8 bit_rate, u8 data_bits, u8 stop_bits, u8 parity, u8 flow_ctrl_settings, u8 xon_char, u8 xoff_char, u16 param_mask); +int rfcomm_dlc_send_rpn(struct rfcomm_dlc *d, u8 bit_rate, u8 data_bits, + u8 stop_bits, u8 parity, u8 flow_ctrl_settings, + u8 xon_char, u8 xoff_char, u16 param_mask); /* ---- RFCOMM DLCs (channels) ---- */ struct rfcomm_dlc *rfcomm_dlc_alloc(gfp_t prio); diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h index 3ed8ddc0dd5d..7d32968f2b13 100644 --- a/include/net/ip_vs.h +++ b/include/net/ip_vs.h @@ -675,10 +675,11 @@ struct ip_vs_dest { /* connection counters and thresholds */ atomic_t activeconns; /* active connections */ - atomic_t inactconns; /* inactive connections */ + atomic_t totalconns; /* total connections */ atomic_t persistconns; /* persistent connections */ __u32 u_threshold; /* upper threshold */ __u32 l_threshold; /* lower threshold */ + __u32 l_threshold_val;/* used lower threshold */ /* for destination cache */ spinlock_t dst_lock; /* lock of dst_cache */ @@ -1457,6 +1458,8 @@ static inline void ip_vs_dest_put_and_free(struct ip_vs_dest *dest) kfree(dest); } +void ip_vs_dest_update_overload(struct ip_vs_dest *dest, int mode); + /* IPVS sync daemon data and function prototypes * (from ip_vs_sync.c) */ @@ -1704,14 +1707,21 @@ void ip_vs_unregister_hooks(struct netns_ipvs *ipvs, unsigned int af); static inline int ip_vs_dest_conn_overhead(struct ip_vs_dest *dest) { - /* We think the overhead of processing active connections is 256 + /* We think the overhead of processing active connections is 257 * times higher than that of inactive connections in average. (This - * 256 times might not be accurate, we will change it later) We + * 257 times might not be accurate, we will change it later) We * use the following formula to estimate the overhead now: - * dest->activeconns*256 + dest->inactconns + * dest->activeconns*256 + dest->totalconns */ return (atomic_read(&dest->activeconns) << 8) + - atomic_read(&dest->inactconns); + atomic_read(&dest->totalconns); +} + +static inline int +ip_vs_dest_inactconns(const struct ip_vs_dest *dest) +{ + return max(atomic_read(&dest->totalconns) - + atomic_read(&dest->activeconns), 0); } #ifdef CONFIG_IP_VS_PROTO_TCP diff --git a/include/net/raw.h b/include/net/raw.h index c51a635671a7..6324965779ec 100644 --- a/include/net/raw.h +++ b/include/net/raw.h @@ -20,9 +20,8 @@ extern struct proto raw_prot; extern struct raw_hashinfo raw_v4_hashinfo; -struct sock *__raw_v4_lookup(struct net *net, struct sock *sk, - unsigned short num, __be32 raddr, - __be32 laddr, int dif, int sdif); +bool raw_v4_match(struct net *net, struct sock *sk, unsigned short num, + __be32 raddr, __be32 laddr, int dif, int sdif); int raw_abort(struct sock *sk, int err); void raw_icmp_error(struct sk_buff *, int, u32); diff --git a/include/net/rawv6.h b/include/net/rawv6.h index 53d86b6055e8..c48c1298699a 100644 --- a/include/net/rawv6.h +++ b/include/net/rawv6.h @@ -5,9 +5,9 @@ #include extern struct raw_hashinfo raw_v6_hashinfo; -struct sock *__raw_v6_lookup(struct net *net, struct sock *sk, - unsigned short num, const struct in6_addr *loc_addr, - const struct in6_addr *rmt_addr, int dif, int sdif); +bool raw_v6_match(struct net *net, struct sock *sk, unsigned short num, + const struct in6_addr *loc_addr, + const struct in6_addr *rmt_addr, int dif, int sdif); int raw_abort(struct sock *sk, int err); diff --git a/include/net/route.h b/include/net/route.h index d771ceb7b337..39be632a9822 100644 --- a/include/net/route.h +++ b/include/net/route.h @@ -240,6 +240,8 @@ int fib_dump_info_fnhe(struct sk_buff *skb, struct netlink_callback *cb, u32 table_id, struct fib_info *fi, int *fa_index, int fa_start, unsigned int flags); +void fnhe_update_pmtu(struct fib_nh_exception *fnhe, u32 new, u32 orig); + static inline void ip_rt_put(struct rtable *rt) { /* dst_release() accepts a NULL parameter. diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index b73eadf644b3..c9a811a3248f 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -322,7 +322,8 @@ struct sctp_cookie { __u8 auth_random[sizeof(struct sctp_paramhdr) + SCTP_AUTH_RANDOM_LENGTH]; - __u8 auth_hmacs[SCTP_AUTH_NUM_HMACS * sizeof(__u16) + 2]; + __u8 auth_hmacs[sizeof(struct sctp_paramhdr) + + SCTP_AUTH_NUM_HMACS * sizeof(__u16)]; __u8 auth_chunks[sizeof(struct sctp_paramhdr) + SCTP_AUTH_MAX_CHUNKS]; /* This is a shim for my peer's INIT packet, followed by diff --git a/kernel/audit.c b/kernel/audit.c index 9c7a898531dd..1339e7731004 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -2077,7 +2077,8 @@ void audit_log_n_hex(struct audit_buffer *ab, const unsigned char *buf, void audit_log_n_string(struct audit_buffer *ab, const char *string, size_t slen) { - int avail, new_len; + int avail; + size_t new_len; unsigned char *ptr; struct sk_buff *skb; @@ -2087,7 +2088,13 @@ void audit_log_n_string(struct audit_buffer *ab, const char *string, BUG_ON(!ab->skb); skb = ab->skb; avail = skb_tailroom(skb); - new_len = slen + 3; /* enclosing quotes + null terminator */ + + /* enclosing quotes + null terminator */ + if (check_add_overflow(slen, 3, &new_len)) { + audit_log_format(ab, "?"); + return; + } + if (new_len > avail) { avail = audit_expand(ab, new_len); if (!avail) diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c index 9d0e63b64ef8..e8874951c194 100644 --- a/kernel/auditfilter.c +++ b/kernel/auditfilter.c @@ -1036,6 +1036,10 @@ int audit_del_rule(struct audit_entry *entry) goto out; } + list_del_rcu(&e->list); + list_del(&e->rule.list); + synchronize_rcu(); + if (e->rule.watch) audit_remove_watch_rule(&e->rule); @@ -1053,8 +1057,6 @@ int audit_del_rule(struct audit_entry *entry) audit_signals--; #endif - list_del_rcu(&e->list); - list_del(&e->rule.list); call_rcu(&e->rcu, audit_free_rule_rcu); out: diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index ec447854f534..a0163090309a 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -7388,11 +7388,12 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env, break; } - /* In case of 'scalar += pointer', dst_reg inherits pointer type and id. - * The id may be overwritten later if we create a new variable offset. + /* For 'scalar += pointer', dst_reg inherits the complete pointer + * register state. Individual fields may be adjusted later by pointer + * arithmetic. Callers guarantee that below does not overwrite off_reg. */ - dst_reg->type = ptr_reg->type; - dst_reg->id = ptr_reg->id; + if (dst_reg != ptr_reg) + *dst_reg = *ptr_reg; if (!check_reg_sane_offset(env, off_reg, ptr_reg->type) || !check_reg_sane_offset(env, ptr_reg, ptr_reg->type)) @@ -7460,7 +7461,7 @@ static int adjust_ptr_min_max_vals(struct bpf_verifier_env *env, } break; case BPF_SUB: - if (dst_reg == off_reg) { + if (dst_reg != ptr_reg) { /* scalar -= pointer. Creates an unknown scalar */ verbose(env, "R%d tried to subtract pointer from scalar\n", dst); @@ -8319,8 +8320,8 @@ static int adjust_reg_min_max_vals(struct bpf_verifier_env *env, err = mark_chain_precision(env, insn->dst_reg); if (err) return err; - return adjust_ptr_min_max_vals(env, insn, - src_reg, dst_reg); + off_reg = *dst_reg; + return adjust_ptr_min_max_vals(env, insn, src_reg, &off_reg); } } else if (ptr_reg) { /* pointer += scalar */ @@ -9644,6 +9645,22 @@ static int check_ld_abs(struct bpf_verifier_env *env, struct bpf_insn *insn) mark_reg_unknown(env, regs, BPF_REG_0); /* ld_abs load up to 32-bit skb data. */ regs[BPF_REG_0].subreg_def = env->insn_idx + 1; + /* + * See bpf_gen_ld_abs() which emits a hidden BPF_EXIT with r0=0 + * which must be explored by the verifier when in a subprog. + */ + if (env->cur_state->curframe) { + struct bpf_verifier_state *branch; + + branch = push_stack(env, env->insn_idx + 1, env->insn_idx, false); + if (!branch) + return -EFAULT; + mark_reg_known_zero(env, regs, BPF_REG_0); + err = prepare_func_exit(env, &env->insn_idx); + if (err) + return err; + env->insn_idx--; + } return 0; } diff --git a/kernel/futex/core.c b/kernel/futex/core.c index 42cd8f2b6da8..8a3a27967973 100644 --- a/kernel/futex/core.c +++ b/kernel/futex/core.c @@ -2078,8 +2078,11 @@ futex_proxy_trylock_atomic(u32 __user *pifutex, struct futex_hash_bucket *hb1, return -EINVAL; /* Ensure that this does not race against an early wakeup */ - if (!futex_requeue_pi_prepare(top_waiter, NULL)) + if (!futex_requeue_pi_prepare(top_waiter, NULL)) { + plist_del(&top_waiter->list, &hb1->chain); + hb_waiters_dec(hb1); return -EAGAIN; + } /* * Try to take the lock for top_waiter and set the FUTEX_WAITERS bit @@ -3360,10 +3363,12 @@ int handle_early_requeue_pi_wakeup(struct futex_hash_bucket *hb, /* * We were woken prior to requeue by a timeout or a signal. - * Unqueue the futex_q and determine which it was. + * Conditionally unqueue the futex_q and determine which it was. */ - plist_del(&q->list, &hb->chain); - hb_waiters_dec(hb); + if (!plist_node_empty(&q->list)) { + plist_del(&q->list, &hb->chain); + hb_waiters_dec(hb); + } /* Handle spurious wakeups gracefully */ ret = -EWOULDBLOCK; @@ -3655,8 +3660,11 @@ static int handle_futex_death(u32 __user *uaddr, struct task_struct *curr, return -1; /* - * Special case for regular (non PI) futexes. The unlock path in - * user space has two race scenarios: + * Special case for regular (non PI) futexes. Ordinarily, we do + * not perform any processing here unless the current thread was + * the owner of the futex (by the TID check below). + * + * However, the unlock path has three race scenarios: * * 1. The unlock path releases the user space futex value and * before it can execute the futex() syscall to wake up @@ -3665,41 +3673,68 @@ static int handle_futex_death(u32 __user *uaddr, struct task_struct *curr, * 2. A woken up waiter is killed before it can acquire the * futex in user space. * - * In the second case, the wake up notification could be generated - * by the unlock path in user space after setting the futex value - * to zero or by the kernel after setting the OWNER_DIED bit below. + * 3. A woken up waiter is killed in user space after another + * thread has acquired the futex, but before it can set + * FUTEX_WAITERS. + * + * Note that, if userspace uses the FUTEX_ROBUST_UNLOCK flag, we + * will not see case 1 here. + * + * In the second and third case, the wake up notification could + * be generated from any of: * - * In both cases the TID validation below prevents a wakeup of - * potential waiters which can cause these waiters to block - * forever. + * i. An ordinary futex wakeup after unlock (with or + * without FUTEX_ROBUST_UNLOCK) + * ii. A robust wakeup from another thread's death + * iii. A previous round through this special case * - * In both cases the following conditions are met: + * As a result, the futex world will be in one of four states: * - * 1) task->robust_list->list_op_pending != NULL - * @pending_op == true - * 2) The owner part of user space futex value == 0 + * A. The futex word is 0 (unlocked) + * B. The futex word is owned by another thread + * (FUTEX_WAITERS is not set) + * C. The futex word is owned by another thread + * (FUTEX_WAITERS set) + * D. The futex's owner died and OWNER_DIED is set + * (the owner part of the word is 0) + * + * The key issue is that the kernel usually (at least from + * sources ii. and iii. or when so requested by userspace from + * source i.) only ever wakes *one* waiter at a time. If this + * waiter dies before acquiring the futex (or setting the + * FUTEX_WAITERS bit), the kernel *must* still wake the next + * waiter down the line to uphold the futex invariants and + * avoid lost wakeups. Note we do not need to handle state C, + * as it does not matter to us whether *we* successfully set + * the bit or a third thread did so in the meantime. + * + * Therefore, in these cases we must issue an additional + * futex_wake(). Note however that we *must not* set OWNER_DIED + * here. Our thread is *not* the owner of the futex. + * + * Thus to summarize, the conditions for needing the additional + * futex_wake() are: + * + * 1) @pending_op == true (the thread has not finished the + * mutex operation) + * 2) The futex word is in one of the states A, B or D * 3) Regular futex: @pi == false * - * If these conditions are met, it is safe to attempt waking up a - * potential waiter without touching the user space futex value and - * trying to set the OWNER_DIED bit. If the futex value is zero, - * the rest of the user space mutex state is consistent, so a woken - * waiter will just take over the uncontended futex. Setting the - * OWNER_DIED bit would create inconsistent state and malfunction - * of the user space owner died handling. Otherwise, the OWNER_DIED - * bit is already set, and the woken waiter is expected to deal with - * this. + * Note in particular that in all of the states A-D the owner + * portion of the futex word differs from our thread's TID + * (unless the actual owner has the same TID in another PID + * namespace, but we cannot currently distinguish that + * scenario), so this can be a special-case wakeup in the bail + * path of the ordinary TID check. */ owner = uval & FUTEX_TID_MASK; - if (pending_op && !pi && !owner) { - futex_wake(uaddr, 1, 1, FUTEX_BITSET_MATCH_ANY); + if (owner != task_pid_vnr(curr)) { + if (pending_op && !pi && (!owner || !(uval & FUTEX_WAITERS))) + futex_wake(uaddr, 1, 1, FUTEX_BITSET_MATCH_ANY); return 0; } - if (owner != task_pid_vnr(curr)) - return 0; - /* * Ok, this dying thread is truly holding a futex * of interest. Set the OWNER_DIED bit atomically diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c index e3022598f7b0..d71c4817996b 100644 --- a/kernel/sched/cputime.c +++ b/kernel/sched/cputime.c @@ -406,19 +406,6 @@ static inline void irqtime_account_process_tick(struct task_struct *p, int user_ */ #ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE -# ifndef __ARCH_HAS_VTIME_TASK_SWITCH -void vtime_task_switch(struct task_struct *prev) -{ - if (is_idle_task(prev)) - vtime_account_idle(prev); - else - vtime_account_kernel(prev); - - vtime_flush(prev); - arch_vtime_task_switch(prev); -} -# endif - void vtime_account_irq(struct task_struct *tsk, unsigned int offset) { unsigned int pc = irq_count() - offset; diff --git a/kernel/trace/trace_eprobe.c b/kernel/trace/trace_eprobe.c index 835c4fada901..dbe6ef2489a4 100644 --- a/kernel/trace/trace_eprobe.c +++ b/kernel/trace/trace_eprobe.c @@ -159,7 +159,8 @@ static bool eprobe_dyn_event_match(const char *system, const char *event, if (!slash) return false; - if (strncmp(ep->event_system, argv[0], slash - argv[0])) + if (strncmp(ep->event_system, argv[0], slash - argv[0]) || + ep->event_system[slash - argv[0]] != '\0') return false; if (strcmp(ep->event_name, slash + 1)) return false; diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 1dfdbd365c8c..b7c643d5f63a 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -2875,6 +2875,7 @@ void trace_event_eval_update(struct trace_eval_map **map, int len) int last_i; int i; + mutex_lock(&event_mutex); down_write(&trace_event_sem); list_for_each_entry_safe(call, p, &ftrace_events, list) { /* events are usually grouped together with systems */ @@ -2908,6 +2909,7 @@ void trace_event_eval_update(struct trace_eval_map **map, int len) cond_resched(); } up_write(&trace_event_sem); + mutex_unlock(&event_mutex); } static struct trace_event_file * @@ -3089,8 +3091,8 @@ static void trace_module_add_events(struct module *mod) end = mod->trace_events + mod->num_trace_events; for_each_event(call, start, end) { - __register_event(*call, mod); - __add_event_to_tracers(*call); + if (!__register_event(*call, mod)) + __add_event_to_tracers(*call); } } diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c index ed2f47d44e0b..7b3014e10eb6 100644 --- a/kernel/trace/trace_events_filter.c +++ b/kernel/trace/trace_events_filter.c @@ -836,6 +836,9 @@ static int regex_match_full(char *str, struct regex *r, int len) if (!len) return strcmp(str, r->pattern) == 0; + if (len < r->len) + return 0; + return strncmp(str, r->pattern, len) == 0; } diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c index 64e77b513697..c523ce5aa495 100644 --- a/kernel/trace/trace_mmiotrace.c +++ b/kernel/trace/trace_mmiotrace.c @@ -29,6 +29,7 @@ static void mmio_reset_data(struct trace_array *tr) { overrun_detected = false; prev_overruns = 0; + atomic_set(&dropped_count, 0); tracing_reset_online_cpus(&tr->array_buffer); } @@ -109,7 +110,6 @@ static void mmio_pipe_open(struct trace_iterator *iter) iter->private = hiter; } -/* XXX: This is not called when the pipe is closed! */ static void mmio_close(struct trace_iterator *iter) { struct header_iter *hiter = iter->private; @@ -146,7 +146,7 @@ static ssize_t mmio_read(struct trace_iterator *iter, struct file *filp, goto print_out; } - if (!hiter) + if (!hiter || !hiter->dev) return 0; mmio_print_pcidev(s, hiter->dev); @@ -279,6 +279,7 @@ static struct tracer mmio_tracer __read_mostly = .start = mmio_trace_start, .pipe_open = mmio_pipe_open, .close = mmio_close, + .pipe_close = mmio_close, .read = mmio_read, .print_line = mmio_print_line, .noboot = true, diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index 54bf1e1bf559..0c2cfad1c1e1 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -176,7 +176,7 @@ void __trace_probe_log_err(int offset, int err_type) lockdep_assert_held(&dyn_event_ops_mutex); - if (!trace_probe_log.argv) + if (!trace_probe_log.argv || !trace_probe_log.argc) return; /* Recalculate the length and allocate buffer */ @@ -896,7 +896,7 @@ int traceprobe_update_arg(struct probe_arg *arg) } /* When len=0, we just calculate the needed length */ -#define LEN_OR_ZERO (len ? len - pos : 0) +#define LEN_OR_ZERO (len > pos ? len - pos : 0) static int __set_print_fmt(struct trace_probe *tp, char *buf, int len, enum probe_print_type ptype) { @@ -1212,16 +1212,17 @@ int trace_probe_compare_arg_type(struct trace_probe *a, struct trace_probe *b) bool trace_probe_match_command_args(struct trace_probe *tp, int argc, const char **argv) { - char buf[MAX_ARGSTR_LEN + 1]; int i; if (tp->nr_args < argc) return false; for (i = 0; i < argc; i++) { - snprintf(buf, sizeof(buf), "%s=%s", - tp->args[i].name, tp->args[i].comm); - if (strcmp(buf, argv[i])) + int len = strlen(tp->args[i].name); + + if (strncmp(argv[i], tp->args[i].name, len) || + argv[i][len] != '=' || + strcmp(argv[i] + len + 1, tp->args[i].comm)) return false; } return true; diff --git a/lib/assoc_array.c b/lib/assoc_array.c index 70304b8f15ac..861965af48b9 100644 --- a/lib/assoc_array.c +++ b/lib/assoc_array.c @@ -255,7 +255,8 @@ assoc_array_walk(const struct assoc_array *array, sc_segments = shortcut->index_key[sc_level >> ASSOC_ARRAY_KEY_CHUNK_SHIFT]; dissimilarity = segments ^ sc_segments; - if (round_up(sc_level, ASSOC_ARRAY_KEY_CHUNK_SIZE) > shortcut->skip_to_level) { + if (shortcut->skip_to_level < round_down(sc_level, + ASSOC_ARRAY_KEY_CHUNK_SIZE) + ASSOC_ARRAY_KEY_CHUNK_SIZE) { /* Trim segments that are beyond the shortcut */ int shift = shortcut->skip_to_level & ASSOC_ARRAY_KEY_CHUNK_MASK; dissimilarity &= ~(ULONG_MAX << shift); diff --git a/lib/rhashtable.c b/lib/rhashtable.c index e12bbfb240b8..c977468291ea 100644 --- a/lib/rhashtable.c +++ b/lib/rhashtable.c @@ -730,6 +730,7 @@ int rhashtable_walk_start_check(struct rhashtable_iter *iter) iter->walker.tbl = rht_dereference_rcu(ht->tbl, ht); iter->slot = 0; iter->skip = 0; + iter->p = NULL; return -EAGAIN; } diff --git a/mm/huge_memory.c b/mm/huge_memory.c index 934c08de74f4..94398e024d3a 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2403,7 +2403,7 @@ static void __split_huge_page_tail(struct page *head, int tail, } static void __split_huge_page(struct page *page, struct list_head *list, - pgoff_t end) + pgoff_t end, struct address_space *mapping) { struct page *head = compound_head(page); struct lruvec *lruvec; @@ -2476,6 +2476,16 @@ static void __split_huge_page(struct page *page, struct list_head *list, split_swap_cluster(entry); } + /* + * Drop the mapping while the head page is still locked and thus pins + * the inode. The loop below may free the after-split subpages -- + * including the head, when @page is a tail beyond EOF that the split + * dropped from the page cache -- which could otherwise let the inode, + * and @mapping, be freed before this unlock. + */ + if (mapping) + i_mmap_unlock_read(mapping); + for (i = 0; i < nr; i++) { struct page *subpage = head + i; if (subpage == page) @@ -2717,7 +2727,9 @@ int split_huge_page_to_list(struct page *page, struct list_head *list) } } - __split_huge_page(page, list, end); + __split_huge_page(page, list, end, mapping); + /* __split_huge_page() dropped the i_mmap lock */ + mapping = NULL; ret = 0; } else { spin_unlock(&ds_queue->split_queue_lock); diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 8b4bc38e1c0a..e0908e491065 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -485,7 +485,7 @@ static int allocate_file_region_entries(struct resv_map *resv, spin_lock(&resv->lock); - list_splice(&allocated_regions, &resv->region_cache); + list_splice_init(&allocated_regions, &resv->region_cache); resv->region_cache_count += to_allocate; } diff --git a/mm/page_reporting.c b/mm/page_reporting.c index 382958eef8a9..cf111a88d95c 100644 --- a/mm/page_reporting.c +++ b/mm/page_reporting.c @@ -48,7 +48,8 @@ __page_reporting_request(struct page_reporting_dev_info *prdev) * now we are limiting this to running no more than once every * couple of seconds. */ - schedule_delayed_work(&prdev->work, PAGE_REPORTING_DELAY); + queue_delayed_work(system_freezable_wq, &prdev->work, + PAGE_REPORTING_DELAY); } /* notify prdev of free page reporting request */ @@ -311,7 +312,8 @@ static void page_reporting_process(struct work_struct *work) */ state = atomic_cmpxchg(&prdev->state, state, PAGE_REPORTING_IDLE); if (state == PAGE_REPORTING_REQUESTED) - schedule_delayed_work(&prdev->work, PAGE_REPORTING_DELAY); + queue_delayed_work(system_freezable_wq, &prdev->work, + PAGE_REPORTING_DELAY); } static DEFINE_MUTEX(page_reporting_mutex); diff --git a/mm/percpu-km.c b/mm/percpu-km.c index fe31aa19db81..86d31190524d 100644 --- a/mm/percpu-km.c +++ b/mm/percpu-km.c @@ -75,7 +75,7 @@ static struct pcpu_chunk *pcpu_create_chunk(gfp_t gfp) chunk->base_addr = page_address(pages); spin_lock_irqsave(&pcpu_lock, flags); - pcpu_chunk_populated(chunk, 0, nr_pages); + pcpu_chunk_populated(chunk, 0, chunk->nr_pages); spin_unlock_irqrestore(&pcpu_lock, flags); pcpu_stats_chunk_alloc(); diff --git a/net/bluetooth/6lowpan.c b/net/bluetooth/6lowpan.c index 9424d153f323..d0b1882f5b4b 100644 --- a/net/bluetooth/6lowpan.c +++ b/net/bluetooth/6lowpan.c @@ -775,20 +775,10 @@ static void chan_close_cb(struct l2cap_chan *chan) struct lowpan_btle_dev *dev = NULL; struct lowpan_peer *peer; int err = -ENOENT; - bool last = false, remove = true; + bool last = false; BT_DBG("chan %p conn %p", chan, chan->conn); - if (chan->conn && chan->conn->hcon) { - if (!is_bt_6lowpan(chan->conn->hcon)) - return; - - /* If conn is set, then the netdev is also there and we should - * not remove it. - */ - remove = false; - } - spin_lock(&devices_lock); list_for_each_entry_rcu(entry, &bt_6lowpan_devices, list) { @@ -815,10 +805,8 @@ static void chan_close_cb(struct l2cap_chan *chan) ifdown(dev->netdev); - if (remove) { - INIT_WORK(&entry->delete_netdev, delete_netdev); - schedule_work(&entry->delete_netdev); - } + INIT_WORK(&entry->delete_netdev, delete_netdev); + schedule_work(&entry->delete_netdev); } else { spin_unlock(&devices_lock); } diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c index e359d448efe9..42a5d2c451a6 100644 --- a/net/bluetooth/hidp/core.c +++ b/net/bluetooth/hidp/core.c @@ -546,9 +546,10 @@ static int hidp_process_data(struct hidp_session *session, struct sk_buff *skb, } if (test_bit(HIDP_WAITING_FOR_RETURN, &session->flags) && - param == session->waiting_report_type) { + param == session->waiting_report_type) { if (session->waiting_report_number < 0 || - session->waiting_report_number == skb->data[0]) { + (skb->len && + session->waiting_report_number == skb->data[0])) { /* hidp_get_raw_report() is waiting on this report. */ session->report_return = skb; done_with_skb = 0; @@ -563,16 +564,18 @@ static int hidp_process_data(struct hidp_session *session, struct sk_buff *skb, static void hidp_recv_ctrl_frame(struct hidp_session *session, struct sk_buff *skb) { - unsigned char hdr, type, param; + unsigned char type, param; + u8 *hdr; int free_skb = 1; BT_DBG("session %p skb %p len %u", session, skb, skb->len); - hdr = skb->data[0]; - skb_pull(skb, 1); + hdr = skb_pull_data(skb, 1); + if (!hdr) + goto free; - type = hdr & HIDP_HEADER_TRANS_MASK; - param = hdr & HIDP_HEADER_PARAM_MASK; + type = *hdr & HIDP_HEADER_TRANS_MASK; + param = *hdr & HIDP_HEADER_PARAM_MASK; switch (type) { case HIDP_TRANS_HANDSHAKE: @@ -593,6 +596,7 @@ static void hidp_recv_ctrl_frame(struct hidp_session *session, break; } +free: if (free_skb) kfree_skb(skb); } @@ -600,14 +604,15 @@ static void hidp_recv_ctrl_frame(struct hidp_session *session, static void hidp_recv_intr_frame(struct hidp_session *session, struct sk_buff *skb) { - unsigned char hdr; + u8 *hdr; BT_DBG("session %p skb %p len %u", session, skb, skb->len); - hdr = skb->data[0]; - skb_pull(skb, 1); + hdr = skb_pull_data(skb, 1); + if (!hdr) + goto free; - if (hdr == (HIDP_TRANS_DATA | HIDP_DATA_RTYPE_INPUT)) { + if (*hdr == (HIDP_TRANS_DATA | HIDP_DATA_RTYPE_INPUT)) { hidp_set_timer(session); if (session->input) @@ -619,9 +624,10 @@ static void hidp_recv_intr_frame(struct hidp_session *session, BT_DBG("report len %d", skb->len); } } else { - BT_DBG("Unsupported protocol header 0x%02x", hdr); + BT_DBG("Unsupported protocol header 0x%02x", *hdr); } +free: kfree_skb(skb); } diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 196b3bdca264..bf031426c912 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -435,7 +435,7 @@ static void l2cap_chan_timeout(struct work_struct *work) BT_DBG("chan %p state %s", chan, state_to_string(chan->state)); - if (!conn) { + if (!conn || test_bit(FLAG_DEL, &chan->flags)) { l2cap_chan_put(chan); return; } @@ -446,6 +446,9 @@ static void l2cap_chan_timeout(struct work_struct *work) */ l2cap_chan_lock(chan); + if (test_bit(FLAG_DEL, &chan->flags)) + goto unlock; + if (chan->state == BT_CONNECTED || chan->state == BT_CONFIG) reason = ECONNREFUSED; else if (chan->state == BT_CONNECT && @@ -458,10 +461,11 @@ static void l2cap_chan_timeout(struct work_struct *work) chan->ops->close(chan); +unlock: l2cap_chan_unlock(chan); - l2cap_chan_put(chan); mutex_unlock(&conn->chan_lock); + l2cap_chan_put(chan); } struct l2cap_chan *l2cap_chan_create(void) @@ -511,6 +515,9 @@ static void l2cap_chan_destroy(struct kref *kref) list_del(&chan->global_l); write_unlock(&chan_list_lock); + if (chan->conn) + l2cap_conn_put(chan->conn); + kfree(chan); } @@ -593,7 +600,7 @@ void __l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan) conn->disc_reason = HCI_ERROR_REMOTE_USER_TERM; - chan->conn = conn; + chan->conn = l2cap_conn_get(conn); switch (chan->chan_type) { case L2CAP_CHAN_CONN_ORIENTED: @@ -648,31 +655,28 @@ void l2cap_chan_add(struct l2cap_conn *conn, struct l2cap_chan *chan) void l2cap_chan_del(struct l2cap_chan *chan, int err) { - struct l2cap_conn *conn = chan->conn; - __clear_chan_timer(chan); - BT_DBG("chan %p, conn %p, err %d, state %s", chan, conn, err, + BT_DBG("chan %p, err %d, state %s", chan, err, state_to_string(chan->state)); chan->ops->teardown(chan, err); - if (conn) { - struct amp_mgr *mgr = conn->hcon->amp_mgr; + if (chan->conn && !test_and_set_bit(FLAG_DEL, &chan->flags)) { + struct amp_mgr *mgr = chan->conn->hcon->amp_mgr; + /* Delete from channel list */ list_del(&chan->list); l2cap_chan_put(chan); - chan->conn = NULL; - /* Reference was only held for non-fixed channels or * fixed channels that explicitly requested it using the * FLAG_HOLD_HCI_CONN flag. */ if (chan->chan_type != L2CAP_CHAN_FIXED || test_bit(FLAG_HOLD_HCI_CONN, &chan->flags)) - hci_conn_drop(conn->hcon); + hci_conn_drop(chan->conn->hcon); if (mgr && mgr->bredr_chan == chan) mgr->bredr_chan = NULL; @@ -2044,7 +2048,7 @@ static void l2cap_monitor_timeout(struct work_struct *work) l2cap_chan_lock(chan); - if (!chan->conn) { + if (!chan->conn || test_bit(FLAG_DEL, &chan->flags)) { l2cap_chan_unlock(chan); l2cap_chan_put(chan); return; @@ -2065,7 +2069,7 @@ static void l2cap_retrans_timeout(struct work_struct *work) l2cap_chan_lock(chan); - if (!chan->conn) { + if (!chan->conn || test_bit(FLAG_DEL, &chan->flags)) { l2cap_chan_unlock(chan); l2cap_chan_put(chan); return; @@ -2690,7 +2694,7 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len) int err; struct sk_buff_head seg_queue; - if (!chan->conn) + if (!chan->conn || test_bit(FLAG_DEL, &chan->flags)) return -ENOTCONN; /* Connectionless channel */ @@ -3291,12 +3295,16 @@ static void l2cap_ack_timeout(struct work_struct *work) l2cap_chan_lock(chan); + if (test_bit(FLAG_DEL, &chan->flags)) + goto unlock; + frames_to_ack = __seq_offset(chan, chan->buffer_seq, chan->last_acked_seq); if (frames_to_ack) l2cap_send_rr_or_rnr(chan, 0); +unlock: l2cap_chan_unlock(chan); l2cap_chan_put(chan); } @@ -5734,6 +5742,10 @@ static int l2cap_le_connect_rsp(struct l2cap_conn *conn, goto unlock; } + chan = l2cap_chan_hold_unless_zero(chan); + if (!chan) + return -EBADSLT; + err = 0; l2cap_chan_lock(chan); @@ -5779,6 +5791,7 @@ static int l2cap_le_connect_rsp(struct l2cap_conn *conn, } l2cap_chan_unlock(chan); + l2cap_chan_put(chan); unlock: mutex_unlock(&conn->chan_lock); diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c index 374187def190..8a8afcd075eb 100644 --- a/net/bluetooth/rfcomm/core.c +++ b/net/bluetooth/rfcomm/core.c @@ -1027,6 +1027,23 @@ int rfcomm_send_rpn(struct rfcomm_session *s, int cr, u8 dlci, return rfcomm_send_frame(s, buf, ptr - buf); } +int rfcomm_dlc_send_rpn(struct rfcomm_dlc *d, u8 bit_rate, u8 data_bits, + u8 stop_bits, u8 parity, u8 flow_ctrl_settings, + u8 xon_char, u8 xoff_char, u16 param_mask) +{ + int err = -ENOTCONN; + + rfcomm_lock(); + if (d->session) + err = rfcomm_send_rpn(d->session, 1, d->dlci, bit_rate, + data_bits, stop_bits, parity, + flow_ctrl_settings, xon_char, xoff_char, + param_mask); + rfcomm_unlock(); + + return err; +} + static int rfcomm_send_rls(struct rfcomm_session *s, int cr, u8 dlci, u8 status) { struct rfcomm_hdr *hdr; diff --git a/net/bluetooth/rfcomm/tty.c b/net/bluetooth/rfcomm/tty.c index ebd78fdbd6e8..6962fa62bd12 100644 --- a/net/bluetooth/rfcomm/tty.c +++ b/net/bluetooth/rfcomm/tty.c @@ -868,7 +868,7 @@ static void rfcomm_tty_set_termios(struct tty_struct *tty, struct ktermios *old) BT_DBG("tty %p termios %p", tty, old); - if (!dev || !dev->dlc || !dev->dlc->session) + if (!dev || !dev->dlc) return; /* Handle turning off CRTSCTS */ @@ -989,9 +989,8 @@ static void rfcomm_tty_set_termios(struct tty_struct *tty, struct ktermios *old) } if (changes) - rfcomm_send_rpn(dev->dlc->session, 1, dev->dlc->dlci, baud, - data_bits, stop_bits, parity, - RFCOMM_RPN_FLOW_NONE, x_on, x_off, changes); + rfcomm_dlc_send_rpn(dev->dlc, baud, data_bits, stop_bits, parity, + RFCOMM_RPN_FLOW_NONE, x_on, x_off, changes); } static void rfcomm_tty_throttle(struct tty_struct *tty) diff --git a/net/bridge/br_mrp.c b/net/bridge/br_mrp.c index fd2de35ffb3c..a837ff7d6f36 100644 --- a/net/bridge/br_mrp.c +++ b/net/bridge/br_mrp.c @@ -215,7 +215,7 @@ static struct sk_buff *br_mrp_alloc_test_skb(struct br_mrp *mrp, struct br_mrp_oui_hdr *oui = NULL; u8 length; - length = sizeof(*sub_opt) + sizeof(*sub_tlv) + sizeof(oui) + + length = sizeof(*sub_opt) + sizeof(*sub_tlv) + sizeof(*oui) + MRP_OPT_PADDING; br_mrp_skb_tlv(skb, BR_MRP_TLV_HEADER_OPTION, length); @@ -224,11 +224,9 @@ static struct sk_buff *br_mrp_alloc_test_skb(struct br_mrp *mrp, sub_opt = skb_put(skb, sizeof(*sub_opt)); memset(sub_opt, 0x0, sizeof(*sub_opt)); - sub_tlv = skb_put(skb, sizeof(*sub_tlv)); - sub_tlv->type = BR_MRP_SUB_TLV_HEADER_TEST_AUTO_MGR; - /* 32 bit alligment shall be ensured therefore add 2 bytes */ - skb_put(skb, MRP_OPT_PADDING); + sub_tlv = skb_put_zero(skb, sizeof(*sub_tlv) + MRP_OPT_PADDING); + sub_tlv->type = BR_MRP_SUB_TLV_HEADER_TEST_AUTO_MGR; } br_mrp_skb_tlv(skb, BR_MRP_TLV_HEADER_END, 0x0); diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c index 3bd46fb38d5f..6fc431e0c424 100644 --- a/net/bridge/br_multicast.c +++ b/net/bridge/br_multicast.c @@ -3511,6 +3511,7 @@ br_multicast_leave_group(struct net_bridge_mcast *brmctx, p->flags |= MDB_PG_FLAGS_FAST_LEAVE; br_multicast_del_pg(mp, p, pp); + break; } goto out; } diff --git a/net/bridge/br_netlink_tunnel.c b/net/bridge/br_netlink_tunnel.c index 8914290c75d4..e4aab0775270 100644 --- a/net/bridge/br_netlink_tunnel.c +++ b/net/bridge/br_netlink_tunnel.c @@ -268,7 +268,8 @@ static void __vlan_tunnel_handle_range(const struct net_bridge_port *p, if (!*v_start) goto out_init; - if (v && curr_change && br_vlan_can_enter_range(v, *v_end)) { + if (v && curr_change && + br_vlan_can_enter_range(v, *v_end, br_get_pvid(vg))) { *v_end = v; return; } diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 9a5479868489..62fdafbcc7e7 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -1475,7 +1475,8 @@ int br_vlan_replay(struct net_device *br_dev, struct net_device *dev, const void *ctx, bool adding, struct notifier_block *nb, struct netlink_ext_ack *extack); bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, - const struct net_bridge_vlan *range_end); + const struct net_bridge_vlan *range_end, + u16 pvid); void br_vlan_fill_forward_path_pvid(struct net_bridge *br, struct net_device_path_ctx *ctx, @@ -1715,7 +1716,8 @@ static inline void br_vlan_notify(const struct net_bridge *br, } static inline bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, - const struct net_bridge_vlan *range_end) + const struct net_bridge_vlan *range_end, + u16 pvid) { return true; } diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index 055d988d280c..5c41c6d00942 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -1958,9 +1958,11 @@ int br_vlan_replay(struct net_device *br_dev, struct net_device *dev, /* check if v_curr can enter a range ending in range_end */ bool br_vlan_can_enter_range(const struct net_bridge_vlan *v_curr, - const struct net_bridge_vlan *range_end) + const struct net_bridge_vlan *range_end, + u16 pvid) { - return v_curr->vid - range_end->vid == 1 && + return v_curr->vid != pvid && range_end->vid != pvid && + v_curr->vid - range_end->vid == 1 && range_end->flags == v_curr->flags && br_vlan_opts_eq_range(v_curr, range_end); } @@ -2042,8 +2044,8 @@ static int br_vlan_dump_dev(const struct net_device *dev, idx += range_end->vid - range_start->vid + 1; range_start = v; - } else if (dump_stats || v->vid == pvid || - !br_vlan_can_enter_range(v, range_end)) { + } else if (dump_stats || + !br_vlan_can_enter_range(v, range_end, pvid)) { u16 vlan_flags = br_vlan_flags(range_start, pvid); if (!br_vlan_fill_vids(skb, range_start->vid, diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c index a6382973b3e7..87fe159efcf7 100644 --- a/net/bridge/br_vlan_options.c +++ b/net/bridge/br_vlan_options.c @@ -262,8 +262,7 @@ int br_vlan_process_options(const struct net_bridge *br, continue; } - if (v->vid == pvid || - !br_vlan_can_enter_range(v, curr_end)) { + if (!br_vlan_can_enter_range(v, curr_end, pvid)) { br_vlan_notify(br, p, curr_start->vid, curr_end->vid, RTM_NEWVLAN); curr_start = v; diff --git a/net/bridge/netfilter/ebt_nflog.c b/net/bridge/netfilter/ebt_nflog.c index 61bf8f4465ab..426f8adc912c 100644 --- a/net/bridge/netfilter/ebt_nflog.c +++ b/net/bridge/netfilter/ebt_nflog.c @@ -41,11 +41,25 @@ ebt_nflog_tg(struct sk_buff *skb, const struct xt_action_param *par) static int ebt_nflog_tg_check(const struct xt_tgchk_param *par) { struct ebt_nflog_info *info = par->targinfo; + int ret; if (info->flags & ~EBT_NFLOG_MASK) return -EINVAL; info->prefix[EBT_NFLOG_PREFIX_SIZE - 1] = '\0'; - return 0; + + ret = nf_logger_find_get(par->family, NF_LOG_TYPE_ULOG); + if (ret != 0 && !par->nft_compat) { + request_module("%s", "nfnetlink_log"); + + ret = nf_logger_find_get(par->family, NF_LOG_TYPE_ULOG); + } + + return ret; +} + +static void ebt_nflog_tg_destroy(const struct xt_tgdtor_param *par) +{ + nf_logger_put(par->family, NF_LOG_TYPE_ULOG); } static struct xt_target ebt_nflog_tg_reg __read_mostly = { @@ -54,6 +68,7 @@ static struct xt_target ebt_nflog_tg_reg __read_mostly = { .family = NFPROTO_BRIDGE, .target = ebt_nflog_tg, .checkentry = ebt_nflog_tg_check, + .destroy = ebt_nflog_tg_destroy, .targetsize = sizeof(struct ebt_nflog_info), .me = THIS_MODULE, }; diff --git a/net/bridge/netfilter/nf_conntrack_bridge.c b/net/bridge/netfilter/nf_conntrack_bridge.c index c63ad63db25e..31ee5af07409 100644 --- a/net/bridge/netfilter/nf_conntrack_bridge.c +++ b/net/bridge/netfilter/nf_conntrack_bridge.c @@ -280,6 +280,7 @@ static unsigned int nf_ct_bridge_pre(void *priv, struct sk_buff *skb, ret = nf_ct_br_defrag6(skb, &bridge_state); break; default: + nf_reset_ct(skb); nf_ct_set(skb, NULL, IP_CT_UNTRACKED); return NF_ACCEPT; } diff --git a/net/can/bcm.c b/net/can/bcm.c index 317cd4c415ba..2cf63940f6a9 100644 --- a/net/can/bcm.c +++ b/net/can/bcm.c @@ -58,6 +58,7 @@ #include #include #include +#include #include #include #include @@ -89,6 +90,8 @@ MODULE_ALIAS("can-proto-2"); #define BCM_MIN_NAMELEN CAN_REQUIRED_SIZE(struct sockaddr_can, can_ifindex) +static struct workqueue_struct *bcm_wq; + /* * easy access to the first 64 bit of can(fd)_frame payload. cp->data is * 64 bit aligned so the offset has to be multiples of 8 which is ensured @@ -102,14 +105,16 @@ static inline u64 get_u64(const struct canfd_frame *cp, int offset) struct bcm_op { struct list_head list; struct rcu_head rcu; + struct work_struct work; int ifindex; canid_t can_id; u32 flags; - unsigned long frames_abs, frames_filtered; + atomic_long_t frames_abs, frames_filtered; struct bcm_timeval ival1, ival2; struct hrtimer timer, thrtimer; ktime_t rx_stamp, kt_ival1, kt_ival2, kt_lastmsg; int rx_ifindex; + int if_detected; /* first received ifindex in ANYDEV rx_op mode */ int cfsiz; u32 count; u32 nframes; @@ -121,7 +126,8 @@ struct bcm_op { struct canfd_frame last_sframe; struct sock *sk; struct net_device *rx_reg_dev; - spinlock_t bcm_tx_lock; /* protect currframe/count in runtime updates */ + spinlock_t bcm_tx_lock; /* protect tx data and timer updates */ + spinlock_t bcm_rx_update_lock; /* protect filter/timer data updates */ }; struct bcm_sock { @@ -211,10 +217,13 @@ static int bcm_proc_show(struct seq_file *m, void *v) list_for_each_entry_rcu(op, &bo->rx_ops, list) { - unsigned long reduction; + long reduction, frames_filtered, frames_abs; + + frames_filtered = atomic_long_read(&op->frames_filtered); + frames_abs = atomic_long_read(&op->frames_abs); /* print only active entries & prevent division by zero */ - if (!op->frames_abs) + if (!frames_abs) continue; seq_printf(m, "rx_op: %03X %-5s ", op->can_id, @@ -236,9 +245,9 @@ static int bcm_proc_show(struct seq_file *m, void *v) (long long)ktime_to_us(op->kt_ival2)); seq_printf(m, "# recv %ld (%ld) => reduction: ", - op->frames_filtered, op->frames_abs); + frames_filtered, frames_abs); - reduction = 100 - (op->frames_filtered * 100) / op->frames_abs; + reduction = 100 - (frames_filtered * 100) / frames_abs; seq_printf(m, "%s%ld%%\n", (reduction == 100) ? "near " : "", reduction); @@ -262,7 +271,8 @@ static int bcm_proc_show(struct seq_file *m, void *v) seq_printf(m, "t2=%lld ", (long long)ktime_to_us(op->kt_ival2)); - seq_printf(m, "# sent %ld\n", op->frames_abs); + seq_printf(m, "# sent %ld\n", + atomic_long_read(&op->frames_abs)); } seq_putc(m, '\n'); @@ -272,25 +282,49 @@ static int bcm_proc_show(struct seq_file *m, void *v) } #endif /* CONFIG_PROC_FS */ +static void bcm_update_rx_stats(struct bcm_op *op) +{ + /* prevent overflow of the reduction% calculation in bcm_proc_show() */ + if (atomic_long_inc_return(&op->frames_abs) > LONG_MAX / 100) { + atomic_long_set(&op->frames_filtered, 0); + atomic_long_set(&op->frames_abs, 0); + } +} + +static void bcm_update_tx_stats(struct bcm_op *op) +{ + /* tx_op has no reduction% calculation - use the full range and + * just keep the displayed counter non-negative on overflow + */ + if (atomic_long_inc_return(&op->frames_abs) == LONG_MAX) + atomic_long_set(&op->frames_abs, 0); +} + /* * bcm_can_tx - send the (next) CAN frame to the appropriate CAN interface * of the given bcm tx op */ -static void bcm_can_tx(struct bcm_op *op) +static void bcm_can_tx(struct bcm_op *op, struct canfd_frame *cf) { struct sk_buff *skb; struct net_device *dev; - struct canfd_frame *cf; + struct canfd_frame cframe; + bool cyclic = !cf; + unsigned int idx = 0; int err; /* no target device? => exit */ if (!op->ifindex) return; - /* read currframe under lock protection */ - spin_lock_bh(&op->bcm_tx_lock); - cf = op->frames + op->cfsiz * op->currframe; - spin_unlock_bh(&op->bcm_tx_lock); + if (cyclic) { + /* read currframe under lock protection */ + spin_lock_bh(&op->bcm_tx_lock); + idx = op->currframe; + memcpy(&cframe, op->frames + op->cfsiz * idx, op->cfsiz); + cf = &cframe; + spin_unlock_bh(&op->bcm_tx_lock); + } dev = dev_get_by_index(sock_net(op->sk), op->ifindex); if (!dev) { @@ -317,16 +351,22 @@ static void bcm_can_tx(struct bcm_op *op) spin_lock_bh(&op->bcm_tx_lock); if (!err) - op->frames_abs++; + bcm_update_tx_stats(op); - op->currframe++; + /* only advance the cyclic sequence if nothing reset currframe while + * we were sending - a concurrent TX_RESET_MULTI_IDX means this + * frame's bookkeeping belongs to a sequence that no longer exists + */ + if (!cyclic || op->currframe == idx) { + op->currframe++; - /* reached last frame? */ - if (op->currframe >= op->nframes) - op->currframe = 0; + /* reached last frame? */ + if (op->currframe >= op->nframes) + op->currframe = 0; - if (op->count > 0) - op->count--; + if (op->count > 0) + op->count--; + } spin_unlock_bh(&op->bcm_tx_lock); out: @@ -401,12 +441,18 @@ static bool bcm_tx_set_expiry(struct bcm_op *op, struct hrtimer *hrt) { ktime_t ival; + spin_lock_bh(&op->bcm_tx_lock); + if (op->kt_ival1 && op->count) ival = op->kt_ival1; - else if (op->kt_ival2) + else if (op->kt_ival2) { ival = op->kt_ival2; - else + } else { + spin_unlock_bh(&op->bcm_tx_lock); return false; + } + + spin_unlock_bh(&op->bcm_tx_lock); hrtimer_set_expires(hrt, ktime_add(ktime_get(), ival)); return true; @@ -423,26 +469,48 @@ static enum hrtimer_restart bcm_tx_timeout_handler(struct hrtimer *hrtimer) { struct bcm_op *op = container_of(hrtimer, struct bcm_op, timer); struct bcm_msg_head msg_head; + bool tx_ival1, tx_ival2; - if (op->kt_ival1 && (op->count > 0)) { - bcm_can_tx(op); - if (!op->count && (op->flags & TX_COUNTEVT)) { + /* snapshot kt_ival1/kt_ival2/count under lock to avoid torn + * ktime_t reads racing with concurrent bcm_tx_setup() updates + */ + spin_lock_bh(&op->bcm_tx_lock); + tx_ival1 = op->kt_ival1 && (op->count > 0); + tx_ival2 = !!op->kt_ival2; + spin_unlock_bh(&op->bcm_tx_lock); + if (tx_ival1) { + u32 flags, count; + struct bcm_timeval ival1, ival2; + + bcm_can_tx(op, NULL); + + /* snapshot variables under lock to avoid torn reads racing + * with concurrent bcm_tx_setup() updates + */ + spin_lock_bh(&op->bcm_tx_lock); + flags = op->flags; + count = op->count; + ival1 = op->ival1; + ival2 = op->ival2; + spin_unlock_bh(&op->bcm_tx_lock); + + if (!count && (flags & TX_COUNTEVT)) { /* create notification to user */ memset(&msg_head, 0, sizeof(msg_head)); msg_head.opcode = TX_EXPIRED; - msg_head.flags = op->flags; - msg_head.count = op->count; - msg_head.ival1 = op->ival1; - msg_head.ival2 = op->ival2; + msg_head.flags = flags; + msg_head.count = count; + msg_head.ival1 = ival1; + msg_head.ival2 = ival2; msg_head.can_id = op->can_id; msg_head.nframes = 0; bcm_send_to_user(op, &msg_head, NULL, 0); } - } else if (op->kt_ival2) { - bcm_can_tx(op); + } else if (tx_ival2) { + bcm_can_tx(op, NULL); } return bcm_tx_set_expiry(op, &op->timer) ? @@ -456,12 +524,9 @@ static void bcm_rx_changed(struct bcm_op *op, struct canfd_frame *data) { struct bcm_msg_head head; - /* update statistics */ - op->frames_filtered++; - - /* prevent statistics overflow */ - if (op->frames_filtered > ULONG_MAX/100) - op->frames_filtered = op->frames_abs = 0; + /* update statistics (frames_filtered <= frames_abs) */ + if (atomic_long_read(&op->frames_abs)) + atomic_long_inc(&op->frames_filtered); /* this element is not throttled anymore */ data->flags &= (BCM_CAN_FLAGS_MASK|RX_RECV); @@ -581,6 +646,8 @@ static enum hrtimer_restart bcm_rx_timeout_handler(struct hrtimer *hrtimer) struct bcm_op *op = container_of(hrtimer, struct bcm_op, timer); struct bcm_msg_head msg_head; + spin_lock_bh(&op->bcm_rx_update_lock); + /* if user wants to be informed, when cyclic CAN-Messages come back */ if ((op->flags & RX_ANNOUNCE_RESUME) && op->last_frames) { /* clear received CAN frames to indicate 'nothing received' */ @@ -597,6 +664,8 @@ static enum hrtimer_restart bcm_rx_timeout_handler(struct hrtimer *hrtimer) msg_head.can_id = op->can_id; msg_head.nframes = 0; + spin_unlock_bh(&op->bcm_rx_update_lock); + bcm_send_to_user(op, &msg_head, NULL, 0); return HRTIMER_NORESTART; @@ -645,15 +714,26 @@ static int bcm_rx_thr_flush(struct bcm_op *op) static enum hrtimer_restart bcm_rx_thr_handler(struct hrtimer *hrtimer) { struct bcm_op *op = container_of(hrtimer, struct bcm_op, thrtimer); + enum hrtimer_restart ret; - if (bcm_rx_thr_flush(op)) { - hrtimer_forward(hrtimer, ktime_get(), op->kt_ival2); - return HRTIMER_RESTART; + spin_lock_bh(&op->bcm_rx_update_lock); + + /* kt_ival2 may have been concurrently cleared by bcm_rx_setup() + * before it cancels this timer - never forward with a zero + * interval in that case. + */ + if (bcm_rx_thr_flush(op) && op->kt_ival2) { + hrtimer_forward_now(hrtimer, op->kt_ival2); + ret = HRTIMER_RESTART; } else { /* rearm throttle handling */ op->kt_lastmsg = 0; - return HRTIMER_NORESTART; + ret = HRTIMER_NORESTART; } + + spin_unlock_bh(&op->bcm_rx_update_lock); + + return ret; } /* @@ -663,7 +743,9 @@ static void bcm_rx_handler(struct sk_buff *skb, void *data) { struct bcm_op *op = (struct bcm_op *)data; const struct canfd_frame *rxframe = (struct canfd_frame *)skb->data; + struct canfd_frame rtrframe; unsigned int i; + bool rtr_frame; if (op->can_id != rxframe->can_id) return; @@ -672,22 +754,66 @@ static void bcm_rx_handler(struct sk_buff *skb, void *data) if (skb->len != op->cfsiz) return; + /* An ANYDEV op with an active RX timeout and/or throttle timer + * tracks a single source interface: claim the first interface that + * delivers a matching frame and reject frames from any other one, + * before hrtimer_cancel() below can touch op->timer - this avoids + * racing bcm_rx_timeout_handler() across concurrent interfaces. + * RX_RTR_FRAME ops are excluded, as kt_ival1/kt_ival2 may briefly + * hold a stale value from an earlier non-RTR configuration. + */ + if (!op->ifindex) { + spin_lock_bh(&op->bcm_rx_update_lock); + + if (!(op->flags & RX_RTR_FRAME) && + (op->kt_ival1 || op->kt_ival2)) { + /* don't claim to vanishing interface */ + if (!op->if_detected && + skb->dev->reg_state == NETREG_REGISTERED) + op->if_detected = skb->dev->ifindex; + + if (op->if_detected != skb->dev->ifindex) { + spin_unlock_bh(&op->bcm_rx_update_lock); + return; + } + } + + spin_unlock_bh(&op->bcm_rx_update_lock); + } + /* disable timeout */ hrtimer_cancel(&op->timer); - /* save rx timestamp */ - op->rx_stamp = skb->tstamp; - /* save originator for recvfrom() */ - op->rx_ifindex = skb->dev->ifindex; - /* update statistics */ - op->frames_abs++; + /* op->flags/op->frames may be updated concurrently by bcm_rx_setup() */ + spin_lock_bh(&op->bcm_rx_update_lock); + + rtr_frame = op->flags & RX_RTR_FRAME; + if (rtr_frame) { + bcm_update_rx_stats(op); + /* snapshot RTR content under lock */ + memcpy(&rtrframe, op->frames, op->cfsiz); + spin_unlock_bh(&op->bcm_rx_update_lock); - if (op->flags & RX_RTR_FRAME) { /* send reply for RTR-request (placed in op->frames[0]) */ - bcm_can_tx(op); + bcm_can_tx(op, &rtrframe); return; } + /* update statistics in the same critical section as bcm_rx_changed() + * below: frames_filtered must never be checked/incremented against a + * frames_abs snapshot from a concurrent bcm_rx_handler() call on + * another CPU for the same (wildcard) op, or frames_filtered can end + * up larger than frames_abs. + */ + bcm_update_rx_stats(op); + + /* save rx timestamp and originator for recvfrom() under lock: an + * ANYDEV op without an active timer can still run concurrently on + * different CPUs, so content and meta data must be bundled here. + */ + op->rx_stamp = skb->tstamp; + op->rx_ifindex = skb->dev->ifindex; + if (op->flags & RX_FILTER_ID) { /* the easiest case */ bcm_rx_update_and_send(op, op->last_frames, rxframe); @@ -721,6 +847,8 @@ static void bcm_rx_handler(struct sk_buff *skb, void *data) rx_starttimer: bcm_rx_starttimer(op); + + spin_unlock_bh(&op->bcm_rx_update_lock); } /* @@ -740,9 +868,12 @@ static struct bcm_op *bcm_find_op(struct list_head *ops, return NULL; } -static void bcm_free_op_rcu(struct rcu_head *rcu_head) +static void bcm_free_op_work(struct work_struct *work) { - struct bcm_op *op = container_of(rcu_head, struct bcm_op, rcu); + struct bcm_op *op = container_of(work, struct bcm_op, work); + + hrtimer_cancel(&op->timer); + hrtimer_cancel(&op->thrtimer); if ((op->frames) && (op->frames != &op->sframe)) kfree(op->frames); @@ -750,9 +881,23 @@ static void bcm_free_op_rcu(struct rcu_head *rcu_head) if ((op->last_frames) && (op->last_frames != &op->last_sframe)) kfree(op->last_frames); + /* the last possible access to op->timer/op->thrtimer has now + * happened above via hrtimer_cancel() - op->sk is no longer + * needed by any pending timer callback, so drop our reference + */ + sock_put(op->sk); + kfree(op); } +static void bcm_free_op_rcu(struct rcu_head *rcu_head) +{ + struct bcm_op *op = container_of(rcu_head, struct bcm_op, rcu); + + INIT_WORK(&op->work, bcm_free_op_work); + queue_work(bcm_wq, &op->work); +} + static void bcm_remove_op(struct bcm_op *op) { hrtimer_cancel(&op->timer); @@ -769,6 +914,7 @@ static void bcm_rx_unreg(struct net_device *dev, struct bcm_op *op) /* mark as removed subscription */ op->rx_reg_dev = NULL; + dev_put(dev); } else printk(KERN_ERR "can-bcm: bcm_rx_unreg: registered device " "mismatch %p %p\n", op->rx_reg_dev, dev); @@ -799,17 +945,14 @@ static int bcm_delete_rx_op(struct list_head *ops, struct bcm_msg_head *mh, * Only remove subscriptions that had not * been removed due to NETDEV_UNREGISTER * in bcm_notifier() + * + * op->rx_reg_dev is a tracked reference taken + * when the subscription was registered, so it + * stays valid here even if a concurrent + * NETDEV_UNREGISTER already unlisted the dev. */ - if (op->rx_reg_dev) { - struct net_device *dev; - - dev = dev_get_by_index(sock_net(op->sk), - op->ifindex); - if (dev) { - bcm_rx_unreg(dev, op); - dev_put(dev); - } - } + if (op->rx_reg_dev) + bcm_rx_unreg(op->rx_reg_dev, op); } else can_rx_unregister(sock_net(op->sk), NULL, op->can_id, @@ -896,6 +1039,8 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, /* check the given can_id */ op = bcm_find_op(&bo->tx_ops, msg_head, ifindex); if (op) { + void *new_frames; + /* update existing BCM operation */ /* @@ -906,11 +1051,23 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, if (msg_head->nframes > op->nframes) return -E2BIG; - /* update CAN frames content */ + /* get new CAN frames content into a staging buffer before + * locking: validate and normalize the frames there so that + * bcm_can_tx() / bcm_tx_timeout_handler() never observe a + * partially updated or unvalidated frame in op->frames + */ + new_frames = kmalloc(msg_head->nframes * op->cfsiz, GFP_KERNEL); + if (!new_frames) + return -ENOMEM; + for (i = 0; i < msg_head->nframes; i++) { - cf = op->frames + op->cfsiz * i; + cf = new_frames + op->cfsiz * i; err = memcpy_from_msg((u8 *)cf, msg, op->cfsiz); + if (err < 0) { + kfree(new_frames); + return err; + } if (op->flags & CAN_FD_FRAME) { if (cf->len > 64) @@ -920,36 +1077,38 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, err = -EINVAL; } - if (err < 0) + if (err < 0) { + kfree(new_frames); return err; + } if (msg_head->flags & TX_CP_CAN_ID) { /* copy can_id into frame */ cf->can_id = msg_head->can_id; } } + + spin_lock_bh(&op->bcm_tx_lock); + + /* update CAN frames content */ + memcpy(op->frames, new_frames, msg_head->nframes * op->cfsiz); + op->flags = msg_head->flags; - /* only lock for unlikely count/nframes/currframe changes */ if (op->nframes != msg_head->nframes || - op->flags & TX_RESET_MULTI_IDX || - op->flags & SETTIMER) { - - spin_lock_bh(&op->bcm_tx_lock); + op->flags & TX_RESET_MULTI_IDX) { + /* potentially update changed nframes */ + op->nframes = msg_head->nframes; + /* restart multiple frame transmission */ + op->currframe = 0; + } - if (op->nframes != msg_head->nframes || - op->flags & TX_RESET_MULTI_IDX) { - /* potentially update changed nframes */ - op->nframes = msg_head->nframes; - /* restart multiple frame transmission */ - op->currframe = 0; - } + if (op->flags & SETTIMER) + op->count = msg_head->count; - if (op->flags & SETTIMER) - op->count = msg_head->count; + spin_unlock_bh(&op->bcm_tx_lock); - spin_unlock_bh(&op->bcm_tx_lock); - } + kfree(new_frames); } else { /* insert new BCM operation for the given can_id */ @@ -1008,6 +1167,7 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, /* bcm_can_tx / bcm_tx_timeout_handler needs this */ op->sk = sk; + sock_hold(sk); op->ifindex = ifindex; /* initialize uninitialized (kzalloc) structure */ @@ -1025,10 +1185,12 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, if (op->flags & SETTIMER) { /* set timer values */ + spin_lock_bh(&op->bcm_tx_lock); op->ival1 = msg_head->ival1; op->ival2 = msg_head->ival2; op->kt_ival1 = bcm_timeval_to_ktime(msg_head->ival1); op->kt_ival2 = bcm_timeval_to_ktime(msg_head->ival2); + spin_unlock_bh(&op->bcm_tx_lock); /* disable an active timer due to zero values? */ if (!op->kt_ival1 && !op->kt_ival2) @@ -1046,7 +1208,7 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, list_add_rcu(&op->list, &bo->tx_ops); if (op->flags & TX_ANNOUNCE) - bcm_can_tx(op); + bcm_can_tx(op, NULL); if (op->flags & STARTTIMER) bcm_tx_start_timer(op); @@ -1060,6 +1222,39 @@ static int bcm_tx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, return err; } +static int bcm_rx_setup_rtr_check(struct bcm_msg_head *msg_head, + struct bcm_op *op, void *new_frames) +{ + struct canfd_frame *frame0 = new_frames; + + if (!(msg_head->flags & RX_RTR_FRAME)) + return 0; + + /* this frame is sent out as-is by bcm_can_tx() whenever a matching + * remote request is received, so validate its length the same way + * bcm_tx_setup() validates TX_SETUP frames before installing it + */ + if (msg_head->flags & CAN_FD_FRAME) { + if (frame0->len > 64) + return -EINVAL; + } else { + if (frame0->len > 8) + return -EINVAL; + } + + /* funny feature in RX(!)_SETUP only for RTR-mode: + * copy can_id into frame BUT without RTR-flag to + * prevent a full-load-loopback-test ... ;-] + * normalize this on the staged buffer, before it is + * ever installed into op->frames. + */ + if ((msg_head->flags & TX_CP_CAN_ID) || + frame0->can_id == op->can_id) + frame0->can_id = op->can_id & ~CAN_RTR_FLAG; + + return 0; +} + /* * bcm_rx_setup - create or update a bcm rx op (for bcm_sendmsg) */ @@ -1069,6 +1264,7 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, struct bcm_sock *bo = bcm_sk(sk); struct bcm_op *op; int do_rx_register; + int new_op = 0; int err = 0; if ((msg_head->flags & RX_FILTER_ID) || (!(msg_head->nframes))) { @@ -1094,6 +1290,8 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, /* check the given can_id */ op = bcm_find_op(&bo->rx_ops, msg_head, ifindex); if (op) { + void *new_frames = NULL; + /* update existing BCM operation */ /* @@ -1105,21 +1303,62 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, return -E2BIG; if (msg_head->nframes) { - /* update CAN frames content */ - err = memcpy_from_msg(op->frames, msg, + /* get new CAN frames content before locking */ + new_frames = kmalloc(msg_head->nframes * op->cfsiz, + GFP_KERNEL); + if (!new_frames) + return -ENOMEM; + + err = memcpy_from_msg(new_frames, msg, msg_head->nframes * op->cfsiz); - if (err < 0) + if (err < 0) { + kfree(new_frames); return err; + } - /* clear last_frames to indicate 'nothing received' */ - memset(op->last_frames, 0, msg_head->nframes * op->cfsiz); + err = bcm_rx_setup_rtr_check(msg_head, op, new_frames); + if (err < 0) { + kfree(new_frames); + return err; + } } + spin_lock_bh(&op->bcm_rx_update_lock); op->nframes = msg_head->nframes; op->flags = msg_head->flags; - /* Only an update -> do not call can_rx_register() */ - do_rx_register = 0; + if (msg_head->nframes) { + /* update CAN frames content */ + memcpy(op->frames, new_frames, + msg_head->nframes * op->cfsiz); + + /* clear last_frames to indicate 'nothing received' */ + memset(op->last_frames, 0, + msg_head->nframes * op->cfsiz); + } + + if (msg_head->flags & SETTIMER) { + op->ival1 = msg_head->ival1; + op->ival2 = msg_head->ival2; + op->kt_ival1 = bcm_timeval_to_ktime(msg_head->ival1); + op->kt_ival2 = bcm_timeval_to_ktime(msg_head->ival2); + op->kt_lastmsg = 0; + op->if_detected = 0; /* reclaim ifindex in ANYDEV mode */ + } + spin_unlock_bh(&op->bcm_rx_update_lock); + + /* free temporary frames / kfree(NULL) is safe */ + kfree(new_frames); + + /* Don't register a new CAN filter for the rx_op update unless + * a concurrent NETDEV_UNREGISTER notifier already tore down + * the previous registration. In this case the receiver needs + * to be re-registered here so that this update doesn't + * silently stop delivering frames for the given ifindex. + * Ops with ifindex = 0 (all CAN interfaces) never carry a + * tracked rx_reg_dev and stay registered as-is. + */ + do_rx_register = (ifindex && !op->rx_reg_dev) ? 1 : 0; } else { /* insert new BCM operation for the given can_id */ @@ -1128,6 +1367,7 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, return -ENOMEM; spin_lock_init(&op->bcm_tx_lock); + spin_lock_init(&op->bcm_rx_update_lock); op->can_id = msg_head->can_id; op->nframes = msg_head->nframes; op->cfsiz = CFSIZ(msg_head->flags); @@ -1161,18 +1401,17 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, if (msg_head->nframes) { err = memcpy_from_msg(op->frames, msg, msg_head->nframes * op->cfsiz); - if (err < 0) { - if (op->frames != &op->sframe) - kfree(op->frames); - if (op->last_frames != &op->last_sframe) - kfree(op->last_frames); - kfree(op); - return err; - } + if (err < 0) + goto free_op; + + err = bcm_rx_setup_rtr_check(msg_head, op, op->frames); + if (err < 0) + goto free_op; } /* bcm_can_tx / bcm_tx_timeout_handler needs this */ op->sk = sk; + sock_hold(sk); op->ifindex = ifindex; /* ifindex for timeout events w/o previous frame reception */ @@ -1189,35 +1428,29 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, /* call can_rx_register() */ do_rx_register = 1; + new_op = 1; } /* if ((op = bcm_find_op(&bo->rx_ops, msg_head->can_id, ifindex))) */ /* check flags */ if (op->flags & RX_RTR_FRAME) { - struct canfd_frame *frame0 = op->frames; - /* no timers in RTR-mode */ hrtimer_cancel(&op->thrtimer); hrtimer_cancel(&op->timer); - - /* - * funny feature in RX(!)_SETUP only for RTR-mode: - * copy can_id into frame BUT without RTR-flag to - * prevent a full-load-loopback-test ... ;-] - */ - if ((op->flags & TX_CP_CAN_ID) || - (frame0->can_id == op->can_id)) - frame0->can_id = op->can_id & ~CAN_RTR_FLAG; - } else { if (op->flags & SETTIMER) { - /* set timer value */ - op->ival1 = msg_head->ival1; - op->ival2 = msg_head->ival2; - op->kt_ival1 = bcm_timeval_to_ktime(msg_head->ival1); - op->kt_ival2 = bcm_timeval_to_ktime(msg_head->ival2); + /* set timers (locked) for newly created op */ + if (new_op) { + spin_lock_bh(&op->bcm_rx_update_lock); + op->ival1 = msg_head->ival1; + op->ival2 = msg_head->ival2; + op->kt_ival1 = bcm_timeval_to_ktime(msg_head->ival1); + op->kt_ival2 = bcm_timeval_to_ktime(msg_head->ival2); + op->kt_lastmsg = 0; + spin_unlock_bh(&op->bcm_rx_update_lock); + } /* disable an active timer due to zero value? */ if (!op->kt_ival1) @@ -1227,9 +1460,11 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, * In any case cancel the throttle timer, flush * potentially blocked msgs and reset throttle handling */ - op->kt_lastmsg = 0; hrtimer_cancel(&op->thrtimer); + + spin_lock_bh(&op->bcm_rx_update_lock); bcm_rx_thr_flush(op); + spin_unlock_bh(&op->bcm_rx_update_lock); } if ((op->flags & STARTTIMER) && op->kt_ival1) @@ -1237,7 +1472,10 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, HRTIMER_MODE_REL_SOFT); } - /* now we can register for can_ids, if we added a new bcm_op */ + /* now we can register for can_ids, if we added a new bcm_op + * or need to re-register after a NETDEV_UNREGISTER tore down + * the previous registration of an existing op + */ if (do_rx_register) { if (ifindex) { struct net_device *dev; @@ -1250,7 +1488,15 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, bcm_rx_handler, op, "bcm", sk); - op->rx_reg_dev = dev; + /* keep a reference so that a later + * unregister can safely reach the device even + * if a concurrent NETDEV_UNREGISTER has + * already unlisted it by ifindex + */ + if (!err) { + op->rx_reg_dev = dev; + dev_hold(dev); + } dev_put(dev); } else { /* the requested device is gone - do not @@ -1259,21 +1505,43 @@ static int bcm_rx_setup(struct bcm_msg_head *msg_head, struct msghdr *msg, err = -ENODEV; } - } else + } else { err = can_rx_register(sock_net(sk), NULL, op->can_id, REGMASK(op->can_id), bcm_rx_handler, op, "bcm", sk); + } + if (err) { - /* this bcm rx op is broken -> remove it */ - bcm_remove_op(op); + /* newly created bcm rx op is broken -> remove it */ + if (new_op) { + bcm_remove_op(op); + return err; + } + + /* an existing op just stays unregistered. + * Cancel op->timer and (defensively) op->thrtimer. + * Other settings can't be reached until the next + * successful RX_SETUP. + */ + hrtimer_cancel(&op->timer); + hrtimer_cancel(&op->thrtimer); return err; } - /* add this bcm_op to the list of the rx_ops */ - list_add_rcu(&op->list, &bo->rx_ops); + /* add a new bcm_op to the list of the rx_ops */ + if (new_op) + list_add_rcu(&op->list, &bo->rx_ops); } return msg_head->nframes * op->cfsiz + MHSIZ; + +free_op: + if (op->frames != &op->sframe) + kfree(op->frames); + if (op->last_frames != &op->last_sframe) + kfree(op->last_frames); + kfree(op); + return err; } /* @@ -1478,11 +1746,30 @@ static void bcm_notify(struct bcm_sock *bo, unsigned long msg, case NETDEV_UNREGISTER: lock_sock(sk); - /* remove device specific receive entries */ - list_for_each_entry(op, &bo->rx_ops, list) + /* rx_ops: remove device specific receive entries */ + list_for_each_entry(op, &bo->rx_ops, list) { if (op->rx_reg_dev == dev) bcm_rx_unreg(dev, op); + /* release an ANYDEV op's claim (see bcm_rx_handler()) + * on this now confirmed-gone interface. + */ + if (!op->ifindex) { + spin_lock_bh(&op->bcm_rx_update_lock); + if (op->if_detected == dev->ifindex) + op->if_detected = 0; + spin_unlock_bh(&op->bcm_rx_update_lock); + } + } + + /* tx_ops: stop device specific cyclic transmissions on the + * vanishing ifindex. Cancelling the timer is enough to stop + * cyclic bcm_can_tx() calls as there is no re-arming. + */ + list_for_each_entry(op, &bo->tx_ops, list) + if (op->ifindex == dev->ifindex) + hrtimer_cancel(&op->timer); + /* remove device reference, if this is our bound device */ if (bo->bound && bo->ifindex == dev->ifindex) { #if IS_ENABLED(CONFIG_PROC_FS) @@ -1615,16 +1902,14 @@ static int bcm_release(struct socket *sock) * Only remove subscriptions that had not * been removed due to NETDEV_UNREGISTER * in bcm_notifier() + * + * op->rx_reg_dev is a tracked reference taken + * when the subscription was registered, so it + * stays valid here even if a concurrent + * NETDEV_UNREGISTER already unlisted the device. */ - if (op->rx_reg_dev) { - struct net_device *dev; - - dev = dev_get_by_index(net, op->ifindex); - if (dev) { - bcm_rx_unreg(dev, op); - dev_put(dev); - } - } + if (op->rx_reg_dev) + bcm_rx_unreg(op->rx_reg_dev, op); } else can_rx_unregister(net, NULL, op->can_id, REGMASK(op->can_id), @@ -1830,11 +2115,16 @@ static int __init bcm_module_init(void) { int err; + bcm_wq = alloc_workqueue("can-bcm-wq", WQ_UNBOUND, 0); + if (!bcm_wq) + return -ENOMEM; + pr_info("can: broadcast manager protocol\n"); err = can_proto_register(&bcm_can_proto); if (err < 0) { printk(KERN_ERR "can: registration of bcm protocol failed\n"); + destroy_workqueue(bcm_wq); return err; } @@ -1848,6 +2138,8 @@ static void __exit bcm_module_exit(void) can_proto_unregister(&bcm_can_proto); unregister_netdevice_notifier(&canbcm_notifier); unregister_pernet_subsys(&canbcm_pernet_ops); + rcu_barrier(); + destroy_workqueue(bcm_wq); } module_init(bcm_module_init); diff --git a/net/can/isotp.c b/net/can/isotp.c index 813134f549f6..34939744dd41 100644 --- a/net/can/isotp.c +++ b/net/can/isotp.c @@ -137,11 +137,12 @@ struct isotp_sock { struct sock sk; int bound; int ifindex; + struct net_device *dev; canid_t txid; canid_t rxid; ktime_t tx_gap; ktime_t lastrxcf_tstamp; - struct hrtimer rxtimer, txtimer, txfrtimer; + struct hrtimer rxtimer, txtimer, txfrtimer, echotimer; struct can_isotp_options opt; struct can_isotp_fc_options rxfc, txfc; struct can_isotp_ll_options ll; @@ -149,6 +150,7 @@ struct isotp_sock { u32 force_tx_stmin; u32 force_rx_stmin; u32 cfecho; /* consecutive frame echo tag */ + u32 tx_gen; /* generation, bumped per new tx transfer */ struct tpcon rx, tx; struct list_head notifier; wait_queue_head_t wait; @@ -355,6 +357,15 @@ static int isotp_rcv_fc(struct isotp_sock *so, struct canfd_frame *cf, int ae) hrtimer_cancel(&so->txtimer); + /* isotp_tx_timeout() may have given up on this job while + * hrtimer_cancel() above waited for it to finish; so->rx_lock + * (held by our caller isotp_rcv()) rules out a concurrent claim, + * so a plain recheck is enough here. + */ + if (so->tx.state != ISOTP_WAIT_FC && + so->tx.state != ISOTP_WAIT_FIRST_FC) + return 1; + if ((cf->len < ae + FC_CONTENT_SZ) || ((so->opt.flags & ISOTP_CHECK_PADDING) && check_pad(so, cf, ae + FC_CONTENT_SZ, so->opt.rxpad_content))) { @@ -400,7 +411,7 @@ static int isotp_rcv_fc(struct isotp_sock *so, struct canfd_frame *cf, int ae) so->tx.bs = 0; so->tx.state = ISOTP_SENDING; /* send CF frame and enable echo timeout handling */ - hrtimer_start(&so->txtimer, ktime_set(ISOTP_ECHO_TIMEOUT, 0), + hrtimer_start(&so->echotimer, ktime_set(ISOTP_ECHO_TIMEOUT, 0), HRTIMER_MODE_REL_SOFT); isotp_send_cframe(so); break; @@ -543,6 +554,14 @@ static int isotp_rcv_cf(struct sock *sk, struct canfd_frame *cf, int ae, hrtimer_cancel(&so->rxtimer); + /* isotp_rx_timer_handler() may have raced us for so->rx.state + * while hrtimer_cancel() above waited for it to finish, already + * reporting ETIMEDOUT and resetting the reception; don't process + * this CF into a reassembly that has already been given up on. + */ + if (so->rx.state != ISOTP_WAIT_DATA) + return 1; + /* CFs are never longer than the FF */ if (cf->len > so->rx.ll_dl) return 1; @@ -832,20 +851,36 @@ static void isotp_rcv_echo(struct sk_buff *skb, void *data) struct canfd_frame *cf = (struct canfd_frame *)skb->data; /* only handle my own local echo CF/SF skb's (no FF!) */ - if (skb->sk != sk || so->cfecho != *(u32 *)cf->data) + if (skb->sk != sk) return; + /* unlike isotp_rcv_fc()/isotp_rcv_cf(), not already under so->rx_lock + * (no isotp_rcv() caller here), so take it ourselves + */ + spin_lock(&so->rx_lock); + + /* so->cfecho may since belong to a new transfer; recheck under lock */ + if (so->cfecho != *(u32 *)cf->data) + goto out_unlock; + /* cancel local echo timeout */ - hrtimer_cancel(&so->txtimer); + hrtimer_cancel(&so->echotimer); /* local echo skb with consecutive frame has been consumed */ so->cfecho = 0; + /* claiming a transfer also takes so->rx_lock, so a plain recheck + * is enough: so->tx.state can't have flipped to ISOTP_SENDING for + * a new claim while we're still in here + */ + if (so->tx.state != ISOTP_SENDING) + goto out_unlock; + if (so->tx.idx >= so->tx.len) { /* we are done */ so->tx.state = ISOTP_IDLE; wake_up_interruptible(&so->wait); - return; + goto out_unlock; } if (so->txfc.bs && so->tx.bs >= so->txfc.bs) { @@ -853,53 +888,83 @@ static void isotp_rcv_echo(struct sk_buff *skb, void *data) so->tx.state = ISOTP_WAIT_FC; hrtimer_start(&so->txtimer, ktime_set(ISOTP_FC_TIMEOUT, 0), HRTIMER_MODE_REL_SOFT); - return; + goto out_unlock; } /* no gap between data frames needed => use burst mode */ if (!so->tx_gap) { /* enable echo timeout handling */ - hrtimer_start(&so->txtimer, ktime_set(ISOTP_ECHO_TIMEOUT, 0), + hrtimer_start(&so->echotimer, ktime_set(ISOTP_ECHO_TIMEOUT, 0), HRTIMER_MODE_REL_SOFT); isotp_send_cframe(so); - return; + goto out_unlock; } /* start timer to send next consecutive frame with correct delay */ hrtimer_start(&so->txfrtimer, so->tx_gap, HRTIMER_MODE_REL_SOFT); + +out_unlock: + spin_unlock(&so->rx_lock); } -static enum hrtimer_restart isotp_tx_timer_handler(struct hrtimer *hrtimer) +/* shared by so->txtimer's and so->echotimer's callbacks. Both timers get + * cancelled under so->rx_lock elsewhere, so this must stay lock-free to + * avoid deadlocking with that; uses so->tx_gen instead to avoid tainting + * a new transfer with an error from the one that just timed out. + */ +static enum hrtimer_restart isotp_tx_timeout(struct isotp_sock *so) { - struct isotp_sock *so = container_of(hrtimer, struct isotp_sock, - txtimer); struct sock *sk = &so->sk; + u32 gen = READ_ONCE(so->tx_gen); + u32 old_state = READ_ONCE(so->tx.state); /* don't handle timeouts in IDLE or SHUTDOWN state */ - if (so->tx.state == ISOTP_IDLE || so->tx.state == ISOTP_SHUTDOWN) + if (old_state == ISOTP_IDLE || old_state == ISOTP_SHUTDOWN) + return HRTIMER_NORESTART; + + /* only claim the timeout if the state is still unchanged */ + if (cmpxchg(&so->tx.state, old_state, ISOTP_IDLE) != old_state) return HRTIMER_NORESTART; /* we did not get any flow control or echo frame in time */ - /* report 'communication error on send' */ - sk->sk_err = ECOMM; - if (!sock_flag(sk, SOCK_DEAD)) - sk_error_report(sk); + if (READ_ONCE(so->tx_gen) == gen) { + /* report 'communication error on send' */ + sk->sk_err = ECOMM; + if (!sock_flag(sk, SOCK_DEAD)) + sk_error_report(sk); + } - /* reset tx state */ - so->tx.state = ISOTP_IDLE; wake_up_interruptible(&so->wait); return HRTIMER_NORESTART; } +/* so->txtimer: fires when a Flow Control frame does not arrive in time */ +static enum hrtimer_restart isotp_tx_timer_handler(struct hrtimer *hrtimer) +{ + struct isotp_sock *so = container_of(hrtimer, struct isotp_sock, + txtimer); + + return isotp_tx_timeout(so); +} + +/* so->echotimer: fires when a sent CF/SF's local echo does not arrive */ +static enum hrtimer_restart isotp_echo_timer_handler(struct hrtimer *hrtimer) +{ + struct isotp_sock *so = container_of(hrtimer, struct isotp_sock, + echotimer); + + return isotp_tx_timeout(so); +} + static enum hrtimer_restart isotp_txfr_timer_handler(struct hrtimer *hrtimer) { struct isotp_sock *so = container_of(hrtimer, struct isotp_sock, txfrtimer); /* start echo timeout handling and cover below protocol error */ - hrtimer_start(&so->txtimer, ktime_set(ISOTP_ECHO_TIMEOUT, 0), + hrtimer_start(&so->echotimer, ktime_set(ISOTP_ECHO_TIMEOUT, 0), HRTIMER_MODE_REL_SOFT); /* cfecho should be consumed by isotp_rcv_echo() here */ @@ -919,13 +984,24 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) int ae = (so->opt.flags & CAN_ISOTP_EXTEND_ADDR) ? 1 : 0; int wait_tx_done = (so->opt.flags & CAN_ISOTP_WAIT_TX_DONE) ? 1 : 0; s64 hrtimer_sec = ISOTP_ECHO_TIMEOUT; + struct hrtimer *tx_hrt = &so->echotimer; + u32 new_state = ISOTP_SENDING; int off; int err; if (!so->bound || so->tx.state == ISOTP_SHUTDOWN) return -EADDRNOTAVAIL; - while (cmpxchg(&so->tx.state, ISOTP_IDLE, ISOTP_SENDING) != ISOTP_IDLE) { + /* claim the socket under so->rx_lock: this serializes the claim + * with the RX path and with sendmsg()'s own error paths below, so + * none of them can ever see a transfer mid-claim + */ + for (;;) { + spin_lock_bh(&so->rx_lock); + if (READ_ONCE(so->tx.state) == ISOTP_IDLE) + break; + spin_unlock_bh(&so->rx_lock); + /* we do not support multiple buffers - for now */ if (msg->msg_flags & MSG_DONTWAIT) return -EAGAIN; @@ -934,9 +1010,29 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) return -EADDRNOTAVAIL; /* wait for complete transmission of current pdu */ - err = wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE); + err = wait_event_interruptible(so->wait, + so->tx.state == ISOTP_IDLE); if (err) - goto err_event_drop; + return err; + } + + /* new transfer: bump so->tx_gen and drain the old one's timers, + * still under the so->rx_lock we just claimed the socket with + */ + WRITE_ONCE(so->tx.state, ISOTP_SENDING); + WRITE_ONCE(so->tx_gen, READ_ONCE(so->tx_gen) + 1); + hrtimer_cancel(&so->txtimer); + hrtimer_cancel(&so->echotimer); + hrtimer_cancel(&so->txfrtimer); + so->cfecho = 0; + spin_unlock_bh(&so->rx_lock); + + /* so->bound is only checked once above - a wakeup may have + * unbound/rebound the socket meanwhile, so re-validate it + */ + if (!so->bound) { + err = -EADDRNOTAVAIL; + goto err_out_drop; } if (!size || size > MAX_MSG_LENGTH) { @@ -1031,18 +1127,33 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) so->cfecho = *(u32 *)cf->data; } else { /* standard flow control check */ - so->tx.state = ISOTP_WAIT_FIRST_FC; + new_state = ISOTP_WAIT_FIRST_FC; /* start timeout for FC */ hrtimer_sec = ISOTP_FC_TIMEOUT; + tx_hrt = &so->txtimer; /* no CF echo tag for isotp_rcv_echo() (FF-mode) */ so->cfecho = 0; } } - hrtimer_start(&so->txtimer, ktime_set(hrtimer_sec, 0), + spin_lock_bh(&so->rx_lock); + if (so->tx.state == ISOTP_SHUTDOWN) { + /* isotp_release() has since taken over and already drained + * our timers - don't send into a socket that's going away + */ + spin_unlock_bh(&so->rx_lock); + kfree_skb(skb); + dev_put(dev); + wake_up_interruptible(&so->wait); + return -EADDRNOTAVAIL; + } + /* WAIT_FIRST_FC for standard FF, else stays ISOTP_SENDING */ + so->tx.state = new_state; + hrtimer_start(tx_hrt, ktime_set(hrtimer_sec, 0), HRTIMER_MODE_REL_SOFT); + spin_unlock_bh(&so->rx_lock); /* send the first or only CAN frame */ cf->flags = so->ll.tx_flags; @@ -1055,13 +1166,10 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) pr_notice_once("can-isotp: %s: can_send_ret %pe\n", __func__, ERR_PTR(err)); + spin_lock_bh(&so->rx_lock); /* no transmission -> no timeout monitoring */ - hrtimer_cancel(&so->txtimer); - - /* reset consecutive frame echo tag */ - so->cfecho = 0; - - goto err_out_drop; + hrtimer_cancel(tx_hrt); + goto err_out_drop_locked; } if (wait_tx_done) { @@ -1077,14 +1185,21 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) return size; +err_out_drop: + /* claimed but nothing sent yet - no timer to cancel */ + spin_lock_bh(&so->rx_lock); + goto err_out_drop_locked; err_event_drop: - /* got signal: force tx state machine to be idle */ - so->tx.state = ISOTP_IDLE; + /* interrupted waiting on our own transfer - drain its timers */ + spin_lock_bh(&so->rx_lock); hrtimer_cancel(&so->txfrtimer); hrtimer_cancel(&so->txtimer); -err_out_drop: - /* drop this PDU and unlock a potential wait queue */ + hrtimer_cancel(&so->echotimer); +err_out_drop_locked: + /* release the claim; so->rx_lock still held from above */ + so->cfecho = 0; so->tx.state = ISOTP_IDLE; + spin_unlock_bh(&so->rx_lock); wake_up_interruptible(&so->wait); return err; @@ -1148,13 +1263,20 @@ static int isotp_release(struct socket *sock) so = isotp_sk(sk); net = sock_net(sk); - /* wait for complete transmission of current pdu */ - while (wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE) == 0 && - cmpxchg(&so->tx.state, ISOTP_IDLE, ISOTP_SHUTDOWN) != ISOTP_IDLE) + /* best-effort: wait for a running pdu to finish, but don't block on + * it forever - give up after the first signal + */ + while (so->tx.state != ISOTP_IDLE && + wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE) == 0) ; - /* force state machines to be idle also when a signal occurred */ + /* claim the socket under so->rx_lock like sendmsg() does, so its + * claim can't race the forced ISOTP_SHUTDOWN below; force it + * unconditionally, even when a signal cut the wait above short + */ + spin_lock_bh(&so->rx_lock); so->tx.state = ISOTP_SHUTDOWN; + spin_unlock_bh(&so->rx_lock); so->rx.state = ISOTP_IDLE; spin_lock(&isotp_notifier_lock); @@ -1166,28 +1288,30 @@ static int isotp_release(struct socket *sock) list_del(&so->notifier); spin_unlock(&isotp_notifier_lock); + rtnl_lock(); lock_sock(sk); - /* remove current filters & unregister */ - if (so->bound) { - if (so->ifindex) { - struct net_device *dev; - - dev = dev_get_by_index(net, so->ifindex); - if (dev) { - if (isotp_register_rxid(so)) - can_rx_unregister(net, dev, so->rxid, - SINGLE_MASK(so->rxid), - isotp_rcv, sk); - - can_rx_unregister(net, dev, so->txid, - SINGLE_MASK(so->txid), - isotp_rcv_echo, sk); - dev_put(dev); - } - } + /* remove current filters & unregister + * tracked reference so->dev is taken at bind() time with rtnl_lock + */ + if (so->bound && so->dev) { + if (isotp_register_rxid(so)) + can_rx_unregister(net, so->dev, so->rxid, + SINGLE_MASK(so->rxid), + isotp_rcv, sk); + + can_rx_unregister(net, so->dev, so->txid, + SINGLE_MASK(so->txid), + isotp_rcv_echo, sk); + dev_put(so->dev); } + so->ifindex = 0; + so->bound = 0; + so->dev = NULL; + + rtnl_unlock(); + /* Always wait for a grace period before touching the timers below. * A concurrent NETDEV_UNREGISTER may have already unregistered our * filters and cleared so->bound in isotp_notify() without waiting @@ -1198,11 +1322,9 @@ static int isotp_release(struct socket *sock) hrtimer_cancel(&so->txfrtimer); hrtimer_cancel(&so->txtimer); + hrtimer_cancel(&so->echotimer); hrtimer_cancel(&so->rxtimer); - so->ifindex = 0; - so->bound = 0; - sock_orphan(sk); sock->sk = NULL; @@ -1256,6 +1378,7 @@ static int isotp_bind(struct socket *sock, struct sockaddr *uaddr, int len) if (!addr->can_ifindex) return -ENODEV; + rtnl_lock(); lock_sock(sk); if (so->bound) { @@ -1263,6 +1386,17 @@ static int isotp_bind(struct socket *sock, struct sockaddr *uaddr, int len) goto out; } + /* A transmission or reception that outlived a previous binding + * (unbound by NETDEV_UNREGISTER) may still be draining; the FC/echo + * and RX watchdog timers bound how long this takes. Checked together + * with so->bound in the same lock_sock() section above, so there is + * no window in which a concurrent isotp_notify() could be missed. + */ + if (so->tx.state != ISOTP_IDLE || so->rx.state != ISOTP_IDLE) { + err = -EAGAIN; + goto out; + } + /* ensure different CAN IDs when the rx_id is to be registered */ if (isotp_register_rxid(so) && rx_id == tx_id) { err = -EADDRNOTAVAIL; @@ -1275,14 +1409,12 @@ static int isotp_bind(struct socket *sock, struct sockaddr *uaddr, int len) goto out; } if (dev->type != ARPHRD_CAN) { - dev_put(dev); err = -ENODEV; - goto out; + goto out_put_dev; } - if (dev->mtu < so->ll.mtu) { - dev_put(dev); + if (READ_ONCE(dev->mtu) < so->ll.mtu) { err = -EINVAL; - goto out; + goto out_put_dev; } if (!(dev->flags & IFF_UP)) notify_enetdown = 1; @@ -1300,16 +1432,25 @@ static int isotp_bind(struct socket *sock, struct sockaddr *uaddr, int len) can_rx_register(net, dev, tx_id, SINGLE_MASK(tx_id), isotp_rcv_echo, sk, "isotpe", sk); - dev_put(dev); - /* switch to new settings */ so->ifindex = ifindex; so->rxid = rx_id; so->txid = tx_id; so->bound = 1; + /* bind() ok -> hold a reference for so->dev so that isotp_release() + * can safely reach the device later, even if a concurrent + * NETDEV_UNREGISTER has already unlisted it by ifindex. + */ + so->dev = dev; + dev_hold(so->dev); + +out_put_dev: + /* remove potential reference from dev_get_by_index() */ + dev_put(dev); out: release_sock(sk); + rtnl_unlock(); if (notify_enetdown) { sk->sk_err = ENETDOWN; @@ -1512,7 +1653,7 @@ static void isotp_notify(struct isotp_sock *so, unsigned long msg, if (!net_eq(dev_net(dev), sock_net(sk))) return; - if (so->ifindex != dev->ifindex) + if (so->dev != dev) return; switch (msg) { @@ -1528,10 +1669,12 @@ static void isotp_notify(struct isotp_sock *so, unsigned long msg, can_rx_unregister(dev_net(dev), dev, so->txid, SINGLE_MASK(so->txid), isotp_rcv_echo, sk); + dev_put(so->dev); } so->ifindex = 0; so->bound = 0; + so->dev = NULL; release_sock(sk); sk->sk_err = ENODEV; @@ -1576,6 +1719,7 @@ static int isotp_init(struct sock *sk) so->ifindex = 0; so->bound = 0; + so->dev = NULL; so->opt.flags = CAN_ISOTP_DEFAULT_FLAGS; so->opt.ext_address = CAN_ISOTP_DEFAULT_EXT_ADDRESS; @@ -1601,6 +1745,8 @@ static int isotp_init(struct sock *sk) so->rxtimer.function = isotp_rx_timer_handler; hrtimer_init(&so->txtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT); so->txtimer.function = isotp_tx_timer_handler; + hrtimer_init(&so->echotimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT); + so->echotimer.function = isotp_echo_timer_handler; hrtimer_init(&so->txfrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL_SOFT); so->txfrtimer.function = isotp_txfr_timer_handler; @@ -1681,13 +1827,18 @@ static __init int isotp_module_init(void) pr_info("can: isotp protocol\n"); + err = register_netdevice_notifier(&canisotp_notifier); + if (err) + return err; + err = can_proto_register(&isotp_can_proto); - if (err < 0) + if (err < 0) { pr_err("can: registration of isotp protocol failed %pe\n", ERR_PTR(err)); - else - register_netdevice_notifier(&canisotp_notifier); + unregister_netdevice_notifier(&canisotp_notifier); + return err; + } - return err; + return 0; } static __exit void isotp_module_exit(void) diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c index e17a166a73c4..55bbcf73c873 100644 --- a/net/can/j1939/transport.c +++ b/net/can/j1939/transport.c @@ -350,6 +350,18 @@ static void j1939_session_skb_drop_old(struct j1939_session *session) } } +static bool j1939_address_is_local(struct j1939_priv *priv, u8 addr) +{ + bool local = false; + + read_lock_bh(&priv->lock); + if (j1939_address_is_unicast(addr) && priv->ents[addr].nusers) + local = true; + read_unlock_bh(&priv->lock); + + return local; +} + void j1939_session_skb_queue(struct j1939_session *session, struct sk_buff *skb) { @@ -358,8 +370,7 @@ void j1939_session_skb_queue(struct j1939_session *session, j1939_ac_fixup(priv, skb); - if (j1939_address_is_unicast(skcb->addr.da) && - priv->ents[skcb->addr.da].nusers) + if (j1939_address_is_local(priv, skcb->addr.da)) skcb->flags |= J1939_ECU_LOCAL_DST; skcb->flags |= J1939_ECU_LOCAL_SRC; @@ -1551,7 +1562,7 @@ j1939_session *j1939_session_fresh_new(struct j1939_priv *priv, } /* alloc data area */ - skb_put(skb, size); + skb_put_zero(skb, size); /* skb is recounted in j1939_session_new() */ return session; } @@ -2021,8 +2032,7 @@ struct j1939_session *j1939_tp_send(struct j1939_priv *priv, return ERR_PTR(ret); /* fix DST flags, it may be used there soon */ - if (j1939_address_is_unicast(skcb->addr.da) && - priv->ents[skcb->addr.da].nusers) + if (j1939_address_is_local(priv, skcb->addr.da)) skcb->flags |= J1939_ECU_LOCAL_DST; /* src is always local, I'm sending ... */ diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c index a21c157daf7d..c83559f015e4 100644 --- a/net/ceph/auth_x.c +++ b/net/ceph/auth_x.c @@ -781,9 +781,16 @@ static int ceph_x_update_authorizer( au = (struct ceph_x_authorizer *)auth->authorizer; if (au->secret_id < th->secret_id) { + int ret; + dout("ceph_x_update_authorizer service %u secret %llu < %llu\n", au->service, au->secret_id, th->secret_id); - return ceph_x_build_authorizer(ac, th, au); + ret = ceph_x_build_authorizer(ac, th, au); + if (ret) + return ret; + + auth->authorizer_buf = au->buf->vec.iov_base; + auth->authorizer_buf_len = au->buf->vec.iov_len; } return 0; } diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index 2e96c755cbe3..7a67bfde6262 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -783,13 +783,13 @@ void ceph_destroy_client(struct ceph_client *client) atomic_set(&client->msgr.stopping, 1); + ceph_debugfs_client_cleanup(client); + /* unmount */ ceph_osdc_stop(&client->osdc); ceph_monc_stop(&client->monc); ceph_messenger_fini(&client->msgr); - ceph_debugfs_client_cleanup(client); - ceph_destroy_options(client->options); kfree(client); diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c index 8f4796c8d8ef..5eb87cfcf8a8 100644 --- a/net/ceph/mon_client.c +++ b/net/ceph/mon_client.c @@ -114,7 +114,7 @@ static struct ceph_monmap *ceph_monmap_decode(void **p, void *end, bool msgr2) dout("%s fsid %pU epoch %u num_mon %u\n", __func__, &fsid, epoch, num_mon); - if (num_mon > CEPH_MAX_MON) + if (num_mon == 0 || num_mon > CEPH_MAX_MON) goto e_inval; monmap = kmalloc(struct_size(monmap, mon_inst, num_mon), GFP_NOIO); @@ -821,7 +821,7 @@ static void handle_get_version_reply(struct ceph_mon_client *monc, struct ceph_mon_generic_request *req; u64 tid = le64_to_cpu(msg->hdr.tid); void *p = msg->front.iov_base; - void *end = p + msg->front_alloc_len; + void *const end = p + msg->front.iov_len; u64 handle; dout("%s msg %p tid %llu\n", __func__, msg, tid); diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index 43c321d38688..905168706d5c 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -504,6 +504,8 @@ static struct crush_map *crush_decode(void *pbyval, void *end) ceph_decode_need(p, end, 4*sizeof(u32), bad); b->id = ceph_decode_32(p); b->type = ceph_decode_16(p); + if (b->type == 0) + goto bad; b->alg = ceph_decode_8(p); if (b->alg != alg) { b->alg = 0; @@ -1830,6 +1832,8 @@ static int decode_new_up_state_weight(void **p, void *end, u8 struct_v, void *new_up_client; void *new_state; void *new_weight_end; + const u32 new_state_item_size = + sizeof(u32) + (struct_v >= 5 ? sizeof(u32) : sizeof(u8)); u32 len; int ret; int i; @@ -1850,7 +1854,8 @@ static int decode_new_up_state_weight(void **p, void *end, u8 struct_v, new_state = *p; ceph_decode_32_safe(p, end, len, e_inval); - len *= sizeof(u32) + (struct_v >= 5 ? sizeof(u32) : sizeof(u8)); + if (check_mul_overflow(len, new_state_item_size, &len)) + goto e_inval; ceph_decode_need(p, end, len, e_inval); *p += len; @@ -3037,8 +3042,11 @@ static int get_immediate_parent(struct crush_map *c, int id, if (b->items[j] != id) continue; - *parent_type_id = b->type; type_cn = lookup_crush_name(&c->type_names, b->type); + if (WARN_ON_ONCE(!type_cn)) + continue; + + *parent_type_id = b->type; parent_loc->cl_type_name = type_cn->cn_name; parent_loc->cl_name = cn->cn_name; return b->id; diff --git a/net/core/lwt_bpf.c b/net/core/lwt_bpf.c index 8c41532b4fe8..c883366a85b8 100644 --- a/net/core/lwt_bpf.c +++ b/net/core/lwt_bpf.c @@ -245,8 +245,10 @@ static int bpf_lwt_xmit_reroute(struct sk_buff *skb) * if there is enough header space in skb. */ err = skb_cow_head(skb, LL_RESERVED_SPACE(dst->dev)); - if (unlikely(err)) + if (unlikely(err)) { + dst_release(dst); goto err; + } skb_dst_drop(skb); skb_dst_set(skb, dst); diff --git a/net/core/sock.c b/net/core/sock.c index bf2bec10d5d6..e5f8916aa85b 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -724,7 +724,6 @@ bool sk_mc_loop(struct sock *sk) return inet6_sk(sk)->mc_loop; #endif } - WARN_ON_ONCE(1); return true; } EXPORT_SYMBOL(sk_mc_loop); diff --git a/net/core/xdp.c b/net/core/xdp.c index 4a9c2f4eceda..a4357f581c70 100644 --- a/net/core/xdp.c +++ b/net/core/xdp.c @@ -625,7 +625,7 @@ struct xdp_frame *xdpf_clone(struct xdp_frame *xdpf) headroom = xdpf->headroom + sizeof(*xdpf); totalsize = headroom + xdpf->len; - if (unlikely(totalsize > PAGE_SIZE)) + if (unlikely(totalsize > SKB_WITH_OVERHEAD(PAGE_SIZE))) return NULL; page = dev_alloc_page(); if (!page) diff --git a/net/hsr/hsr_slave.c b/net/hsr/hsr_slave.c index b8230faa567f..58e757dc5554 100644 --- a/net/hsr/hsr_slave.c +++ b/net/hsr/hsr_slave.c @@ -228,6 +228,8 @@ void hsr_del_port(struct hsr_port *port) netdev_rx_handler_unregister(port->dev); if (!port->hsr->fwd_offloaded) dev_set_promiscuity(port->dev, -1); + if (port->type == HSR_PT_SLAVE_A || port->type == HSR_PT_SLAVE_B) + vlan_vids_del_by_dev(port->dev, master->dev); netdev_upper_dev_unlink(port->dev, master->dev); } diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c index 3d00253afbb8..ccc59b4ca019 100644 --- a/net/ipv4/fib_semantics.c +++ b/net/ipv4/fib_semantics.c @@ -460,6 +460,34 @@ int ip_fib_check_default(__be32 gw, struct net_device *dev) return -1; } +static size_t fib_nexthop_nlmsg_size(const struct fib_nh_common *nhc, + bool skip_oif) +{ + size_t nhsize = 0; + + switch (nhc->nhc_gw_family) { + case AF_INET: + nhsize += nla_total_size(4); /* RTA_GATEWAY */ + break; + case AF_INET6: + nhsize += nla_total_size(sizeof(struct rtvia) + + sizeof(struct in6_addr)); + break; + } + + if (!skip_oif && nhc->nhc_dev) + nhsize += nla_total_size(4); /* RTA_OIF */ + + if (nhc->nhc_lwtstate) { + /* RTA_ENCAP */ + nhsize += lwtunnel_get_encap_size(nhc->nhc_lwtstate); + /* RTA_ENCAP_TYPE */ + nhsize += nla_total_size(2); + } + + return nhsize; +} + size_t fib_nlmsg_size(struct fib_info *fi) { size_t payload = NLMSG_ALIGN(sizeof(struct rtmsg)) @@ -477,32 +505,35 @@ size_t fib_nlmsg_size(struct fib_info *fi) payload += nla_total_size(4); /* RTA_NH_ID */ if (nhs) { - size_t nh_encapsize = 0; - /* Also handles the special case nhs == 1 */ - - /* each nexthop is packed in an attribute */ - size_t nhsize = nla_total_size(sizeof(struct rtnexthop)); + size_t mpsize = 0; unsigned int i; - /* may contain flow and gateway attribute */ - nhsize += 2 * nla_total_size(4); - - /* grab encap info */ for (i = 0; i < fib_info_num_path(fi); i++) { struct fib_nh_common *nhc = fib_info_nhc(fi, i); + size_t nhsize; + + nhsize = fib_nexthop_nlmsg_size(nhc, nhs != 1); + + if (nhs != 1) + nhsize += NLA_ALIGN(sizeof(struct rtnexthop)); + +#ifdef CONFIG_IP_ROUTE_CLASSID + if (nhc->nhc_family == AF_INET) { + struct fib_nh *nh; - if (nhc->nhc_lwtstate) { - /* RTA_ENCAP_TYPE */ - nh_encapsize += lwtunnel_get_encap_size( - nhc->nhc_lwtstate); - /* RTA_ENCAP */ - nh_encapsize += nla_total_size(2); + nh = container_of(nhc, struct fib_nh, nh_common); + if (nh->nh_tclassid) + nhsize += nla_total_size(4); } +#endif + if (nhs == 1) + payload += nhsize; + else + mpsize += nhsize; } - /* all nexthops are packed in a nested attribute */ - payload += nla_total_size((nhs * nhsize) + nh_encapsize); - + if (nhs != 1) + payload += nla_total_size(mpsize); } return payload; @@ -1944,42 +1975,30 @@ static int call_fib_nh_notifiers(struct fib_nh *nh, return NOTIFY_DONE; } -/* Update the PMTU of exceptions when: - * - the new MTU of the first hop becomes smaller than the PMTU - * - the old MTU was the same as the PMTU, and it limited discovery of - * larger MTUs on the path. With that limit raised, we can now - * discover larger MTUs - * A special case is locked exceptions, for which the PMTU is smaller - * than the minimal accepted PMTU: - * - if the new MTU is greater than the PMTU, don't make any change - * - otherwise, unlock and set PMTU +/* Walk the exceptions of a nexthop after its first hop MTU changed. The + * chain is RCU protected here, while fnhe_update_pmtu() takes fnhe_lock + * for the update of each entry. */ void fib_nhc_update_mtu(struct fib_nh_common *nhc, u32 new, u32 orig) { struct fnhe_hash_bucket *bucket; int i; - bucket = rcu_dereference_protected(nhc->nhc_exceptions, 1); + rcu_read_lock(); + bucket = rcu_dereference(nhc->nhc_exceptions); if (!bucket) - return; + goto out; for (i = 0; i < FNHE_HASH_SIZE; i++) { struct fib_nh_exception *fnhe; - for (fnhe = rcu_dereference_protected(bucket[i].chain, 1); + for (fnhe = rcu_dereference(bucket[i].chain); fnhe; - fnhe = rcu_dereference_protected(fnhe->fnhe_next, 1)) { - if (fnhe->fnhe_mtu_locked) { - if (new <= fnhe->fnhe_pmtu) { - fnhe->fnhe_pmtu = new; - fnhe->fnhe_mtu_locked = false; - } - } else if (new < fnhe->fnhe_pmtu || - orig == fnhe->fnhe_pmtu) { - fnhe->fnhe_pmtu = new; - } - } + fnhe = rcu_dereference(fnhe->fnhe_next)) + fnhe_update_pmtu(fnhe, new, orig); } +out: + rcu_read_unlock(); } void fib_sync_mtu(struct net_device *dev, u32 orig_mtu) diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index 3f43851f87e3..03dac903d96b 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1384,7 +1384,7 @@ int fib_table_insert(struct net *net, struct fib_table *tb, out_remove_new_fa: fib_remove_alias(t, tp, l, new_fa); out_free_new_fa: - kmem_cache_free(fn_alias_kmem, new_fa); + alias_free_mem_rcu(new_fa); out: fib_release_info(fi); err: diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index ab631e665e98..9c363f44a694 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -537,11 +537,23 @@ static struct rtable *icmp_route_lookup(struct net *net, if (IS_ERR(rt2)) err = PTR_ERR(rt2); } else { - struct flowi4 fl4_2 = {}; + struct flowi4 fl4_2 = fl4_dec; unsigned long orefdst; - fl4_2.daddr = fl4_dec.saddr; - rt2 = ip_route_output_key(net, &fl4_2); + swap(fl4_2.daddr, fl4_2.saddr); + switch (fl4_2.flowi4_proto) { + case IPPROTO_TCP: + case IPPROTO_UDP: + case IPPROTO_SCTP: + case IPPROTO_DCCP: + swap(fl4_2.fl4_sport, fl4_2.fl4_dport); + break; + } + + fl4_2.flowi4_oif = l3mdev_master_ifindex(route_lookup_dev); + fl4_2.flowi4_flags |= FLOWI_FLAG_ANYSRC; + + rt2 = __ip_route_output_key(net, &fl4_2); if (IS_ERR(rt2)) { err = PTR_ERR(rt2); goto relookup_failed; diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index d99fed07b024..042982aaf970 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -750,11 +750,23 @@ static struct request_sock *inet_reqsk_clone(struct request_sock *req, nreq->rsk_listener = sk; - /* We need not acquire fastopenq->lock - * because the child socket is locked in inet_csk_listen_stop(). - */ - if (sk->sk_protocol == IPPROTO_TCP && tcp_rsk(nreq)->tfo_listener) + if (sk->sk_protocol == IPPROTO_TCP && tcp_rsk(nreq)->tfo_listener) { + struct fastopen_queue *fastopenq; + + /* reqsk_fastopen_remove() will uncharge nreq->rsk_listener, + * that is @sk, so charge it here. Unlike the listener + * being closed, @sk is live and needs its lock. + */ + fastopenq = &inet_csk(sk)->icsk_accept_queue.fastopenq; + spin_lock_bh(&fastopenq->lock); + fastopenq->qlen++; + spin_unlock_bh(&fastopenq->lock); + + /* We need not acquire fastopenq->lock + * because the child socket is locked in inet_csk_listen_stop(). + */ rcu_assign_pointer(tcp_sk(nreq->sk)->fastopen_rsk, nreq); + } return nreq; } diff --git a/net/ipv4/nexthop.c b/net/ipv4/nexthop.c index 8cd148be09c6..9257a63b9ffd 100644 --- a/net/ipv4/nexthop.c +++ b/net/ipv4/nexthop.c @@ -1503,8 +1503,8 @@ static bool nh_res_bucket_migrate(struct nh_res_table *res_table, bool notify_nl, bool force) { struct nh_res_bucket *bucket = &res_table->nh_buckets[bucket_index]; + struct netlink_ext_ack extack = {}; struct nh_grp_entry *new_nhge; - struct netlink_ext_ack extack; int err; new_nhge = list_first_entry_or_null(&res_table->uw_nh_entries, diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index e6cb76ecbf2d..dbfc9301a1fc 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -117,24 +117,19 @@ void raw_unhash_sk(struct sock *sk) } EXPORT_SYMBOL_GPL(raw_unhash_sk); -struct sock *__raw_v4_lookup(struct net *net, struct sock *sk, - unsigned short num, __be32 raddr, __be32 laddr, - int dif, int sdif) +bool raw_v4_match(struct net *net, struct sock *sk, unsigned short num, + __be32 raddr, __be32 laddr, int dif, int sdif) { - sk_for_each_from(sk) { - struct inet_sock *inet = inet_sk(sk); - - if (net_eq(sock_net(sk), net) && inet->inet_num == num && - !(inet->inet_daddr && inet->inet_daddr != raddr) && - !(inet->inet_rcv_saddr && inet->inet_rcv_saddr != laddr) && - raw_sk_bound_dev_eq(net, sk->sk_bound_dev_if, dif, sdif)) - goto found; /* gotcha */ - } - sk = NULL; -found: - return sk; + struct inet_sock *inet = inet_sk(sk); + + if (net_eq(sock_net(sk), net) && inet->inet_num == num && + !(inet->inet_daddr && inet->inet_daddr != raddr) && + !(inet->inet_rcv_saddr && inet->inet_rcv_saddr != laddr) && + raw_sk_bound_dev_eq(net, sk->sk_bound_dev_if, dif, sdif)) + return true; + return false; } -EXPORT_SYMBOL_GPL(__raw_v4_lookup); +EXPORT_SYMBOL_GPL(raw_v4_match); /* * 0 - deliver @@ -168,23 +163,21 @@ static int icmp_filter(const struct sock *sk, const struct sk_buff *skb) */ static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash) { + struct net *net = dev_net(skb->dev); int sdif = inet_sdif(skb); int dif = inet_iif(skb); - struct sock *sk; struct hlist_head *head; int delivered = 0; - struct net *net; + struct sock *sk; - read_lock(&raw_v4_hashinfo.lock); head = &raw_v4_hashinfo.ht[hash]; if (hlist_empty(head)) - goto out; - - net = dev_net(skb->dev); - sk = __raw_v4_lookup(net, __sk_head(head), iph->protocol, - iph->saddr, iph->daddr, dif, sdif); - - while (sk) { + return 0; + read_lock(&raw_v4_hashinfo.lock); + sk_for_each(sk, head) { + if (!raw_v4_match(net, sk, iph->protocol, + iph->saddr, iph->daddr, dif, sdif)) + continue; delivered = 1; if ((iph->protocol != IPPROTO_ICMP || !icmp_filter(sk, skb)) && ip_mc_sf_allow(sk, iph->daddr, iph->saddr, @@ -195,31 +188,16 @@ static int raw_v4_input(struct sk_buff *skb, const struct iphdr *iph, int hash) if (clone) raw_rcv(sk, clone); } - sk = __raw_v4_lookup(net, sk_next(sk), iph->protocol, - iph->saddr, iph->daddr, - dif, sdif); } -out: read_unlock(&raw_v4_hashinfo.lock); return delivered; } int raw_local_deliver(struct sk_buff *skb, int protocol) { - int hash; - struct sock *raw_sk; - - hash = protocol & (RAW_HTABLE_SIZE - 1); - raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]); - - /* If there maybe a raw socket we must check - if not we - * don't care less - */ - if (raw_sk && !raw_v4_input(skb, ip_hdr(skb), hash)) - raw_sk = NULL; - - return raw_sk != NULL; + int hash = protocol & (RAW_HTABLE_SIZE - 1); + return raw_v4_input(skb, ip_hdr(skb), hash); } static void raw_err(struct sock *sk, struct sk_buff *skb, u32 info) @@ -286,29 +264,24 @@ static void raw_err(struct sock *sk, struct sk_buff *skb, u32 info) void raw_icmp_error(struct sk_buff *skb, int protocol, u32 info) { - int hash; - struct sock *raw_sk; + struct net *net = dev_net(skb->dev); + int dif = skb->dev->ifindex; + int sdif = inet_sdif(skb); + struct hlist_head *head; const struct iphdr *iph; - struct net *net; + struct sock *sk; + int hash; hash = protocol & (RAW_HTABLE_SIZE - 1); + head = &raw_v4_hashinfo.ht[hash]; read_lock(&raw_v4_hashinfo.lock); - raw_sk = sk_head(&raw_v4_hashinfo.ht[hash]); - if (raw_sk) { - int dif = skb->dev->ifindex; - int sdif = inet_sdif(skb); - + sk_for_each(sk, head) { iph = (const struct iphdr *)skb->data; - net = dev_net(skb->dev); - - while ((raw_sk = __raw_v4_lookup(net, raw_sk, protocol, - iph->daddr, iph->saddr, - dif, sdif)) != NULL) { - raw_err(raw_sk, skb, info); - raw_sk = sk_next(raw_sk); - iph = (const struct iphdr *)skb->data; - } + if (!raw_v4_match(net, sk, iph->protocol, + iph->daddr, iph->saddr, dif, sdif)) + continue; + raw_err(sk, skb, info); } read_unlock(&raw_v4_hashinfo.lock); } diff --git a/net/ipv4/raw_diag.c b/net/ipv4/raw_diag.c index ccacbde30a2c..b6d92dc7b051 100644 --- a/net/ipv4/raw_diag.c +++ b/net/ipv4/raw_diag.c @@ -34,31 +34,30 @@ raw_get_hashinfo(const struct inet_diag_req_v2 *r) * use helper to figure it out. */ -static struct sock *raw_lookup(struct net *net, struct sock *from, - const struct inet_diag_req_v2 *req) +static bool raw_lookup(struct net *net, struct sock *sk, + const struct inet_diag_req_v2 *req) { struct inet_diag_req_raw *r = (void *)req; - struct sock *sk = NULL; if (r->sdiag_family == AF_INET) - sk = __raw_v4_lookup(net, from, r->sdiag_raw_protocol, - r->id.idiag_dst[0], - r->id.idiag_src[0], - r->id.idiag_if, 0); + return raw_v4_match(net, sk, r->sdiag_raw_protocol, + r->id.idiag_dst[0], + r->id.idiag_src[0], + r->id.idiag_if, 0); #if IS_ENABLED(CONFIG_IPV6) else - sk = __raw_v6_lookup(net, from, r->sdiag_raw_protocol, - (const struct in6_addr *)r->id.idiag_src, - (const struct in6_addr *)r->id.idiag_dst, - r->id.idiag_if, 0); + return raw_v6_match(net, sk, r->sdiag_raw_protocol, + (const struct in6_addr *)r->id.idiag_src, + (const struct in6_addr *)r->id.idiag_dst, + r->id.idiag_if, 0); #endif - return sk; + return false; } static struct sock *raw_sock_get(struct net *net, const struct inet_diag_req_v2 *r) { struct raw_hashinfo *hashinfo = raw_get_hashinfo(r); - struct sock *sk = NULL, *s; + struct sock *sk; int slot; if (IS_ERR(hashinfo)) @@ -66,9 +65,8 @@ static struct sock *raw_sock_get(struct net *net, const struct inet_diag_req_v2 read_lock(&hashinfo->lock); for (slot = 0; slot < RAW_HTABLE_SIZE; slot++) { - sk_for_each(s, &hashinfo->ht[slot]) { - sk = raw_lookup(net, s, r); - if (sk) { + sk_for_each(sk, &hashinfo->ht[slot]) { + if (raw_lookup(net, sk, r)) { /* * Grab it and keep until we fill * diag meaage to be reported, so @@ -81,10 +79,11 @@ static struct sock *raw_sock_get(struct net *net, const struct inet_diag_req_v2 } } } + sk = ERR_PTR(-ENOENT); out_unlock: read_unlock(&hashinfo->lock); - return sk ? sk : ERR_PTR(-ENOENT); + return sk; } static int raw_diag_dump_one(struct netlink_callback *cb, diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 4a7789ac0c10..fd3996dff291 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -758,6 +758,35 @@ static void update_or_create_fnhe(struct fib_nh_common *nhc, __be32 daddr, spin_unlock_bh(&fnhe_lock); } +/* Update the PMTU of an exception when: + * - the new MTU of the first hop becomes smaller than the PMTU + * - the old MTU was the same as the PMTU, and it limited discovery of + * larger MTUs on the path. With that limit raised, we can now + * discover larger MTUs + * A special case is locked exceptions, for which the PMTU is smaller + * than the minimal accepted PMTU: + * - if the new MTU is greater than the PMTU, don't make any change + * - otherwise, unlock and set PMTU + * + * fnhe_lock keeps fnhe_pmtu and fnhe_mtu_locked consistent against + * update_or_create_fnhe(), which sets both under the same lock. + */ +void fnhe_update_pmtu(struct fib_nh_exception *fnhe, u32 new, u32 orig) +{ + spin_lock_bh(&fnhe_lock); + + if (fnhe->fnhe_mtu_locked) { + if (new <= fnhe->fnhe_pmtu) { + fnhe->fnhe_pmtu = new; + fnhe->fnhe_mtu_locked = false; + } + } else if (new < fnhe->fnhe_pmtu || orig == fnhe->fnhe_pmtu) { + fnhe->fnhe_pmtu = new; + } + + spin_unlock_bh(&fnhe_lock); +} + static void __ip_do_redirect(struct rtable *rt, struct sk_buff *skb, struct flowi4 *fl4, bool kill_route) { diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c index 11cb3a353cc6..d01ffe12e0ce 100644 --- a/net/ipv4/tcp_bpf.c +++ b/net/ipv4/tcp_bpf.c @@ -390,6 +390,7 @@ static int tcp_bpf_send_verdict(struct sock *sk, struct sk_psock *psock, case __SK_REDIRECT: redir_ingress = psock->redir_ingress; sk_redir = psock->sk_redir; + sock_hold(sk_redir); sk_msg_apply_bytes(psock, tosend); if (!psock->apply_bytes) { /* Clean up before releasing the sock lock. */ @@ -410,6 +411,7 @@ static int tcp_bpf_send_verdict(struct sock *sk, struct sk_psock *psock, if (eval == __SK_REDIRECT) sock_put(sk_redir); + sock_put(sk_redir); lock_sock(sk); sk_mem_uncharge(sk, sent); @@ -525,7 +527,7 @@ static int tcp_bpf_sendmsg(struct sock *sk, struct msghdr *msg, size_t size) wait_for_memory: err = sk_stream_wait_memory(sk, &timeo); if (err) { - if (msg_tx && msg_tx != psock->cork) + if (msg_tx == &tmp) sk_msg_free(sk, msg_tx); goto out_err; } diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c index 8f47d07c49fb..e2c7d6d8986c 100644 --- a/net/ipv4/udp_offload.c +++ b/net/ipv4/udp_offload.c @@ -20,17 +20,19 @@ static struct sk_buff *__skb_udp_tunnel_segment(struct sk_buff *skb, int tnl_hlen = skb_inner_mac_header(skb) - skb_transport_header(skb); bool remcsum, need_csum, offload_csum, gso_partial; struct sk_buff *segs = ERR_PTR(-EINVAL); - struct udphdr *uh = udp_hdr(skb); u16 mac_offset = skb->mac_header; __be16 protocol = skb->protocol; u16 mac_len = skb->mac_len; int udp_offset, outer_hlen; + struct udphdr *uh; __wsum partial; bool need_ipsec; if (unlikely(!pskb_may_pull(skb, tnl_hlen))) goto out; + uh = udp_hdr(skb); + /* Adjust partial header checksum to negate old length. * We cannot rely on the value contained in uh->len as it is * possible that the actual value exceeds the boundaries of the diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c index a20ef3ab059c..a81aa5e9b7d7 100644 --- a/net/ipv6/fib6_rules.c +++ b/net/ipv6/fib6_rules.c @@ -300,6 +300,7 @@ INDIRECT_CALLABLE_SCOPE bool fib6_rule_suppress(struct fib_rule *rule, suppress_route: ip6_rt_put_flags(rt, flags); + res->rt6 = NULL; return true; } diff --git a/net/ipv6/ila/ila_common.c b/net/ipv6/ila/ila_common.c index b8d43ed4689d..ca54a227fc2f 100644 --- a/net/ipv6/ila/ila_common.c +++ b/net/ipv6/ila/ila_common.c @@ -84,6 +84,7 @@ static void ila_csum_adjust_transport(struct sk_buff *skb, struct tcphdr *th = (struct tcphdr *) (skb_network_header(skb) + nhoff); + ip6h = ipv6_hdr(skb); diff = get_csum_diff(ip6h, p); inet_proto_csum_replace_by_diff(&th->check, skb, diff, true, true); @@ -95,6 +96,7 @@ static void ila_csum_adjust_transport(struct sk_buff *skb, (skb_network_header(skb) + nhoff); if (uh->check || skb->ip_summed == CHECKSUM_PARTIAL) { + ip6h = ipv6_hdr(skb); diff = get_csum_diff(ip6h, p); inet_proto_csum_replace_by_diff(&uh->check, skb, diff, true, true); @@ -109,6 +111,7 @@ static void ila_csum_adjust_transport(struct sk_buff *skb, struct icmp6hdr *ih = (struct icmp6hdr *) (skb_network_header(skb) + nhoff); + ip6h = ipv6_hdr(skb); diff = get_csum_diff(ip6h, p); inet_proto_csum_replace_by_diff(&ih->icmp6_cksum, skb, diff, true, true); @@ -126,6 +129,15 @@ void ila_update_ipv6_locator(struct sk_buff *skb, struct ila_params *p, switch (p->csum_mode) { case ILA_CSUM_ADJUST_TRANSPORT: ila_csum_adjust_transport(skb, p); + /* + * ila_csum_adjust_transport() calls pskb_may_pull(), which can + * reallocate the skb head and leave ip6h (and the iaddr derived + * from it) dangling; reload both before the write below. The + * other csum modes do not pull, so their cached pointers stay + * valid. + */ + ip6h = ipv6_hdr(skb); + iaddr = ila_a2i(&ip6h->daddr); break; case ILA_CSUM_NEUTRAL_MAP: if (sir2ila) { diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c index 53930c28b694..bb7262f5b448 100644 --- a/net/ipv6/ip6_tunnel.c +++ b/net/ipv6/ip6_tunnel.c @@ -677,6 +677,9 @@ ip6ip6_err(struct sk_buff *skb, struct inet6_skb_parm *opt, if (!skb2) return 0; + /* Remove debris left by outer IPv6 stack. */ + memset(IP6CB(skb2), 0, sizeof(*IP6CB(skb2))); + skb_dst_drop(skb2); skb_pull(skb2, offset); skb_reset_network_header(skb2); diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 586e972cbcd5..c3719e5ac89f 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -66,41 +66,27 @@ struct raw_hashinfo raw_v6_hashinfo = { }; EXPORT_SYMBOL_GPL(raw_v6_hashinfo); -struct sock *__raw_v6_lookup(struct net *net, struct sock *sk, - unsigned short num, const struct in6_addr *loc_addr, - const struct in6_addr *rmt_addr, int dif, int sdif) +bool raw_v6_match(struct net *net, struct sock *sk, unsigned short num, + const struct in6_addr *loc_addr, + const struct in6_addr *rmt_addr, int dif, int sdif) { - bool is_multicast = ipv6_addr_is_multicast(loc_addr); - - sk_for_each_from(sk) - if (inet_sk(sk)->inet_num == num) { - - if (!net_eq(sock_net(sk), net)) - continue; - - if (!ipv6_addr_any(&sk->sk_v6_daddr) && - !ipv6_addr_equal(&sk->sk_v6_daddr, rmt_addr)) - continue; - - if (!raw_sk_bound_dev_eq(net, sk->sk_bound_dev_if, - dif, sdif)) - continue; - - if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr)) { - if (ipv6_addr_equal(&sk->sk_v6_rcv_saddr, loc_addr)) - goto found; - if (is_multicast && - inet6_mc_check(sk, loc_addr, rmt_addr)) - goto found; - continue; - } - goto found; - } - sk = NULL; -found: - return sk; + if (inet_sk(sk)->inet_num != num || + !net_eq(sock_net(sk), net) || + (!ipv6_addr_any(&sk->sk_v6_daddr) && + !ipv6_addr_equal(&sk->sk_v6_daddr, rmt_addr)) || + !raw_sk_bound_dev_eq(net, sk->sk_bound_dev_if, + dif, sdif)) + return false; + + if (ipv6_addr_any(&sk->sk_v6_rcv_saddr) || + ipv6_addr_equal(&sk->sk_v6_rcv_saddr, loc_addr) || + (ipv6_addr_is_multicast(loc_addr) && + inet6_mc_check(sk, loc_addr, rmt_addr))) + return true; + + return false; } -EXPORT_SYMBOL_GPL(__raw_v6_lookup); +EXPORT_SYMBOL_GPL(raw_v6_match); /* * 0 - deliver @@ -156,31 +142,28 @@ EXPORT_SYMBOL(rawv6_mh_filter_unregister); */ static bool ipv6_raw_deliver(struct sk_buff *skb, int nexthdr) { + struct net *net = dev_net(skb->dev); const struct in6_addr *saddr; const struct in6_addr *daddr; + struct hlist_head *head; struct sock *sk; bool delivered = false; __u8 hash; - struct net *net; saddr = &ipv6_hdr(skb)->saddr; daddr = saddr + 1; hash = nexthdr & (RAW_HTABLE_SIZE - 1); - + head = &raw_v6_hashinfo.ht[hash]; + if (hlist_empty(head)) + return false; read_lock(&raw_v6_hashinfo.lock); - sk = sk_head(&raw_v6_hashinfo.ht[hash]); - - if (!sk) - goto out; - - net = dev_net(skb->dev); - sk = __raw_v6_lookup(net, sk, nexthdr, daddr, saddr, - inet6_iif(skb), inet6_sdif(skb)); - - while (sk) { + sk_for_each(sk, head) { int filtered; + if (!raw_v6_match(net, sk, nexthdr, daddr, saddr, + inet6_iif(skb), inet6_sdif(skb))) + continue; delivered = true; switch (nexthdr) { case IPPROTO_ICMPV6: @@ -219,23 +202,14 @@ static bool ipv6_raw_deliver(struct sk_buff *skb, int nexthdr) rawv6_rcv(sk, clone); } } - sk = __raw_v6_lookup(net, sk_next(sk), nexthdr, daddr, saddr, - inet6_iif(skb), inet6_sdif(skb)); } -out: read_unlock(&raw_v6_hashinfo.lock); return delivered; } bool raw6_local_deliver(struct sk_buff *skb, int nexthdr) { - struct sock *raw_sk; - - raw_sk = sk_head(&raw_v6_hashinfo.ht[nexthdr & (RAW_HTABLE_SIZE - 1)]); - if (raw_sk && !ipv6_raw_deliver(skb, nexthdr)) - raw_sk = NULL; - - return raw_sk != NULL; + return ipv6_raw_deliver(skb, nexthdr); } /* This cleans up af_inet6 a bit. -DaveM */ @@ -361,28 +335,22 @@ static void rawv6_err(struct sock *sk, struct sk_buff *skb, void raw6_icmp_error(struct sk_buff *skb, int nexthdr, u8 type, u8 code, int inner_offset, __be32 info) { + struct net *net = dev_net(skb->dev); + struct hlist_head *head; struct sock *sk; int hash; - const struct in6_addr *saddr, *daddr; - struct net *net; hash = nexthdr & (RAW_HTABLE_SIZE - 1); - + head = &raw_v6_hashinfo.ht[hash]; read_lock(&raw_v6_hashinfo.lock); - sk = sk_head(&raw_v6_hashinfo.ht[hash]); - if (sk) { + sk_for_each(sk, head) { /* Note: ipv6_hdr(skb) != skb->data */ const struct ipv6hdr *ip6h = (const struct ipv6hdr *)skb->data; - saddr = &ip6h->saddr; - daddr = &ip6h->daddr; - net = dev_net(skb->dev); - - while ((sk = __raw_v6_lookup(net, sk, nexthdr, saddr, daddr, - inet6_iif(skb), inet6_iif(skb)))) { - rawv6_err(sk, skb, NULL, type, code, - inner_offset, info); - sk = sk_next(sk); - } + + if (!raw_v6_match(net, sk, nexthdr, &ip6h->saddr, &ip6h->daddr, + inet6_iif(skb), inet6_sdif(skb))) + continue; + rawv6_err(sk, skb, NULL, type, code, inner_offset, info); } read_unlock(&raw_v6_hashinfo.lock); } diff --git a/net/ipv6/route.c b/net/ipv6/route.c index cb1cf7d5946f..43b8995142e2 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -947,13 +947,13 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len, } else if (rinfo->prefix_len > 128) { return -EINVAL; } else if (rinfo->prefix_len > 64) { - if (rinfo->length < 2) { + /* RFC 4191: Length MUST be 3 when Prefix Length > 64 */ + if (rinfo->length < 3) return -EINVAL; - } } else if (rinfo->prefix_len > 0) { - if (rinfo->length < 1) { + /* RFC 4191: Length MUST be 2 or 3 when Prefix Length > 0 */ + if (rinfo->length < 2) return -EINVAL; - } } pref = rinfo->route_pref; diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index 3188d719a2e4..1ea949561428 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -335,6 +335,7 @@ static void iucv_sever_path(struct sock *sk, int with_user_data) unsigned char user_data[16]; struct iucv_sock *iucv = iucv_sk(sk); struct iucv_path *path = iucv->path; + struct sock_msg_q *p, *n; /* Whoever resets the path pointer, must sever and free it. */ if (xchg(&iucv->path, NULL)) { @@ -346,6 +347,19 @@ static void iucv_sever_path(struct sock *sk, int with_user_data) } else pr_iucv->path_sever(path, NULL); iucv_path_free(path); + + /* + * Message notifications queued on message_q still reference + * the now freed path; drop them, otherwise a later recvmsg() + * would pass the freed iucv_path to message_receive() via + * iucv_process_message_q(). + */ + spin_lock_bh(&iucv->message_q.lock); + list_for_each_entry_safe(p, n, &iucv->message_q.list, list) { + list_del(&p->list); + kfree(p); + } + spin_unlock_bh(&iucv->message_q.lock); } } @@ -1867,7 +1881,8 @@ static int afiucv_hs_callback_syn(struct sock *sk, struct sk_buff *skb) afiucv_swap_src_dest(skb); trans_hdr->flags = AF_IUCV_FLAG_SYN | AF_IUCV_FLAG_FIN; err = dev_queue_xmit(skb); - iucv_sock_kill(nsk); + if (nsk) + iucv_sock_kill(nsk); bh_unlock_sock(sk); goto out; } @@ -2084,6 +2099,8 @@ static int afiucv_hs_rcv(struct sk_buff *skb, struct net_device *dev, } } } + if (sk) + sock_hold(sk); read_unlock(&iucv_sk_list.lock); if (!iucv) sk = NULL; @@ -2133,6 +2150,8 @@ static int afiucv_hs_rcv(struct sk_buff *skb, struct net_device *dev, kfree_skb(skb); } + if (sk) + sock_put(sk); return err; } diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index eb7de2d455e1..3b2d51df5d94 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -482,6 +482,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do WARN_ON(!list_empty(&sdata->u.ap.vlans)); } else if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN) { /* remove all packets in parent bc_buf pointing to this dev */ + __skb_queue_head_init(&freeq); ps = &sdata->bss->ps; spin_lock_irqsave(&ps->bc_buf.lock, flags); @@ -489,10 +490,15 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do if (skb->dev == sdata->dev) { __skb_unlink(skb, &ps->bc_buf); local->total_ps_buffered--; - ieee80211_free_txskb(&local->hw, skb); + __skb_queue_tail(&freeq, skb); } } spin_unlock_irqrestore(&ps->bc_buf.lock, flags); + + skb_queue_walk_safe(&freeq, skb, tmp) { + __skb_unlink(skb, &freeq); + ieee80211_free_txskb(&local->hw, skb); + } } if (going_down) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 15933e9abc9b..dda1ee11f8a8 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1591,6 +1591,8 @@ static void sta_ps_start(struct sta_info *sta) else clear_bit(tid, &sta->txq_buffered_tids); } + + sta_info_recalc_tim(sta); } static void sta_ps_end(struct sta_info *sta) diff --git a/net/mac80211/s1g.c b/net/mac80211/s1g.c index 10b34bc4b67d..e41fd43f6a6e 100644 --- a/net/mac80211/s1g.c +++ b/net/mac80211/s1g.c @@ -100,6 +100,10 @@ ieee80211_s1g_rx_twt_setup(struct ieee80211_sub_if_data *sdata, struct ieee80211_twt_setup *twt = (void *)mgmt->u.action.u.s1g.variable; struct ieee80211_twt_params *twt_agrt = (void *)twt->params; + if (!(twt->control & IEEE80211_TWT_CONTROL_NEG_TYPE_BROADCAST) && + twt->length < sizeof(twt->control) + sizeof(*twt_agrt)) + return; + twt_agrt->req_type &= cpu_to_le16(~IEEE80211_TWT_REQTYPE_REQUEST); /* broadcast TWT not supported yet */ diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c index af6a7e39b7b7..7c8593d7abad 100644 --- a/net/mac802154/llsec.c +++ b/net/mac802154/llsec.c @@ -888,6 +888,11 @@ llsec_do_decrypt_auth(struct sk_buff *skb, const struct mac802154_llsec *sec, data = skb_mac_header(skb) + skb->mac_len; datalen = skb_tail_pointer(skb) - data; + if (datalen < authlen) { + kfree_sensitive(req); + return -EBADMSG; + } + sg_init_one(&sg, skb_mac_header(skb), assoclen + datalen); if (!(hdr->sec.level & IEEE802154_SCF_SECLEVEL_ENC)) { diff --git a/net/mpls/af_mpls.c b/net/mpls/af_mpls.c index b111778bcc35..d77e028aed23 100644 --- a/net/mpls/af_mpls.c +++ b/net/mpls/af_mpls.c @@ -2145,6 +2145,9 @@ static int mpls_valid_fib_dump_req(struct net *net, const struct nlmsghdr *nlh, int ifindex; if (i == RTA_OIF) { + if (!tb[i]) + continue; + ifindex = nla_get_u32(tb[i]); filter->dev = __dev_get_by_index(net, ifindex); if (!filter->dev) @@ -2492,6 +2495,7 @@ static int mpls_getroute(struct sk_buff *in_skb, struct nlmsghdr *in_nlh, r->rtm_family = AF_MPLS; r->rtm_dst_len = 20; r->rtm_src_len = 0; + r->rtm_tos = 0; r->rtm_table = RT_TABLE_MAIN; r->rtm_type = RTN_UNICAST; r->rtm_scope = RT_SCOPE_UNIVERSE; diff --git a/net/mptcp/options.c b/net/mptcp/options.c index cd576b40d4db..7d078b15f632 100644 --- a/net/mptcp/options.c +++ b/net/mptcp/options.c @@ -152,17 +152,11 @@ static void mptcp_parse_option(const struct sk_buff *skb, ptr++; flags = (*ptr++) & MPTCP_DSS_FLAG_MASK; - mp_opt->data_fin = (flags & MPTCP_DSS_DATA_FIN) != 0; mp_opt->dsn64 = (flags & MPTCP_DSS_DSN64) != 0; mp_opt->use_map = (flags & MPTCP_DSS_HAS_MAP) != 0; mp_opt->ack64 = (flags & MPTCP_DSS_ACK64) != 0; mp_opt->use_ack = (flags & MPTCP_DSS_HAS_ACK); - pr_debug("data_fin=%d dsn64=%d use_map=%d ack64=%d use_ack=%d\n", - mp_opt->data_fin, mp_opt->dsn64, - mp_opt->use_map, mp_opt->ack64, - mp_opt->use_ack); - expected_opsize = TCPOLEN_MPTCP_DSS_BASE; if (mp_opt->use_ack) { @@ -173,12 +167,18 @@ static void mptcp_parse_option(const struct sk_buff *skb, } if (mp_opt->use_map) { + mp_opt->data_fin = (flags & MPTCP_DSS_DATA_FIN) != 0; if (mp_opt->dsn64) expected_opsize += TCPOLEN_MPTCP_DSS_MAP64; else expected_opsize += TCPOLEN_MPTCP_DSS_MAP32; } + pr_debug("data_fin=%d dsn64=%d use_map=%d ack64=%d use_ack=%d\n", + mp_opt->data_fin, mp_opt->dsn64, + mp_opt->use_map, mp_opt->ack64, + mp_opt->use_ack); + /* Always parse any csum presence combination, we will enforce * RFC 8684 Section 3.3.0 checks later in subflow_data_ready */ diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c index db350b8f5d88..82b22368a540 100644 --- a/net/ncsi/ncsi-netlink.c +++ b/net/ncsi/ncsi-netlink.c @@ -461,6 +461,10 @@ static int ncsi_send_cmd_nl(struct sk_buff *msg, struct genl_info *info) nca.req_flags = NCSI_REQ_FLAG_NETLINK_DRIVEN; nca.info = info; nca.payload = ntohs(hdr->length); + if (nca.payload > len - sizeof(*hdr)) { + ret = -EINVAL; + goto out_netlink; + } nca.data = data + sizeof(*hdr); ret = ncsi_xmit_cmd(&nca); diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h index da7956e2f8d8..47f3c4fcdf7c 100644 --- a/net/netfilter/ipset/ip_set_hash_gen.h +++ b/net/netfilter/ipset/ip_set_hash_gen.h @@ -964,7 +964,7 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext, #endif if (SET_WITH_COUNTER(set)) ip_set_init_counter(ext_counter(data, set), ext); - if (SET_WITH_COMMENT(set)) + if (SET_WITH_COMMENT(set) && !ext->target) ip_set_init_comment(set, ext_comment(data, set), ext); if (SET_WITH_SKBINFO(set)) ip_set_init_skbinfo(ext_skbinfo(data, set), ext); diff --git a/net/netfilter/ipvs/ip_vs_conn.c b/net/netfilter/ipvs/ip_vs_conn.c index 8a84f81bc820..b850c254b958 100644 --- a/net/netfilter/ipvs/ip_vs_conn.c +++ b/net/netfilter/ipvs/ip_vs_conn.c @@ -570,12 +570,6 @@ static inline void ip_vs_bind_xmit_v6(struct ip_vs_conn *cp) #endif -static inline int ip_vs_dest_totalconns(struct ip_vs_dest *dest) -{ - return atomic_read(&dest->activeconns) - + atomic_read(&dest->inactconns); -} - /* * Bind a connection entry with a virtual service destination * Called just after a new connection entry is created. @@ -599,6 +593,9 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest) flags = cp->flags; /* Bind with the destination and its corresponding transmitter */ if (flags & IP_VS_CONN_F_SYNC) { + /* Synced conns are hashed, so they can not get this flag */ + conn_flags &= ~IP_VS_CONN_F_ONE_PACKET; + /* if the connection is not template and is created * by sync, preserve the activity flag. */ @@ -624,23 +621,22 @@ ip_vs_bind_dest(struct ip_vs_conn *cp, struct ip_vs_dest *dest) /* Update the connection counters */ if (!(flags & IP_VS_CONN_F_TEMPLATE)) { + int tc; + /* It is a normal connection, so modify the counters * according to the flags, later the protocol can * update them on state change */ if (!(flags & IP_VS_CONN_F_INACTIVE)) atomic_inc(&dest->activeconns); - else - atomic_inc(&dest->inactconns); + tc = atomic_inc_return(&dest->totalconns); + if (tc == READ_ONCE(dest->u_threshold)) + ip_vs_dest_update_overload(dest, 1); } else { /* It is a persistent connection/template, so increase the persistent connection counter */ atomic_inc(&dest->persistconns); } - - if (dest->u_threshold != 0 && - ip_vs_dest_totalconns(dest) >= dest->u_threshold) - dest->flags |= IP_VS_DEST_F_OVERLOAD; } @@ -721,30 +717,20 @@ static inline void ip_vs_unbind_dest(struct ip_vs_conn *cp) /* Update the connection counters */ if (!(cp->flags & IP_VS_CONN_F_TEMPLATE)) { - /* It is a normal connection, so decrease the inactconns - or activeconns counter */ - if (cp->flags & IP_VS_CONN_F_INACTIVE) { - atomic_dec(&dest->inactconns); - } else { + int tc; + + /* It is a normal connection, so decrease the counters */ + if (!(cp->flags & IP_VS_CONN_F_INACTIVE)) atomic_dec(&dest->activeconns); - } + tc = atomic_fetch_dec(&dest->totalconns); + if (tc == READ_ONCE(dest->l_threshold_val)) + ip_vs_dest_update_overload(dest, -1); } else { /* It is a persistent connection/template, so decrease the persistent connection counter */ atomic_dec(&dest->persistconns); } - if (dest->l_threshold != 0) { - if (ip_vs_dest_totalconns(dest) < dest->l_threshold) - dest->flags &= ~IP_VS_DEST_F_OVERLOAD; - } else if (dest->u_threshold != 0) { - if (ip_vs_dest_totalconns(dest) * 4 < dest->u_threshold * 3) - dest->flags &= ~IP_VS_DEST_F_OVERLOAD; - } else { - if (dest->flags & IP_VS_DEST_F_OVERLOAD) - dest->flags &= ~IP_VS_DEST_F_OVERLOAD; - } - ip_vs_dest_put(dest); } diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c index b5bd8bec24eb..99cc39036c4e 100644 --- a/net/netfilter/ipvs/ip_vs_core.c +++ b/net/netfilter/ipvs/ip_vs_core.c @@ -1825,6 +1825,7 @@ ip_vs_in_icmp(struct netns_ipvs *ipvs, struct sk_buff *skb, int *related, if (pskb_pull(skb, offset2) == NULL) goto ignore_tunnel; skb_reset_network_header(skb); + memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt)); /* Ensure the IP header is present in headroom */ if (!pskb_may_pull(skb, hlen_orig)) goto ignore_tunnel; diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index 0805c9083eaa..025512d76db0 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -863,6 +863,40 @@ ip_vs_zero_stats(struct ip_vs_stats *stats) spin_unlock_bh(&stats->lock); } +/* Update overload flag based on number of dest conns and lower/upper + * connection thresholds: + * - conns reach u_threshold and exceed it: set the flag + * - conns go below l_threshold (or 75% of u_threshold): clear the flag + */ +static void __ip_vs_dest_update_overload(struct ip_vs_dest *dest, int mode) +{ + int conns; + u32 l, u; + + lockdep_assert_held(&dest->dst_lock); + u = READ_ONCE(dest->u_threshold); + if (!u) + goto unset; + l = READ_ONCE(dest->l_threshold_val); + conns = atomic_read(&dest->totalconns); + if (conns >= (mode > 0 ? l : u)) { + dest->flags |= IP_VS_DEST_F_OVERLOAD; + return; + } + if (conns >= (mode < 0 ? u : l)) + return; + +unset: + dest->flags &= ~IP_VS_DEST_F_OVERLOAD; +} + +void ip_vs_dest_update_overload(struct ip_vs_dest *dest, int mode) +{ + spin_lock_bh(&dest->dst_lock); + __ip_vs_dest_update_overload(dest, mode); + spin_unlock_bh(&dest->dst_lock); +} + /* * Update a destination in the given service */ @@ -929,10 +963,19 @@ __ip_vs_update_dest(struct ip_vs_service *svc, struct ip_vs_dest *dest, /* set the dest status flags */ dest->flags |= IP_VS_DEST_F_AVAILABLE; - if (udest->u_threshold == 0 || udest->u_threshold > dest->u_threshold) - dest->flags &= ~IP_VS_DEST_F_OVERLOAD; - dest->u_threshold = udest->u_threshold; - dest->l_threshold = udest->l_threshold; + if (READ_ONCE(dest->u_threshold) != udest->u_threshold || + READ_ONCE(dest->l_threshold) != udest->l_threshold) { + spin_lock_bh(&dest->dst_lock); + WRITE_ONCE(dest->u_threshold, udest->u_threshold); + WRITE_ONCE(dest->l_threshold, udest->l_threshold); + /* Low threshold defaults to 75% of upper threshold */ + WRITE_ONCE(dest->l_threshold_val, + udest->l_threshold ? : + (udest->u_threshold - + (udest->u_threshold >> 2))); + __ip_vs_dest_update_overload(dest, 0); + spin_unlock_bh(&dest->dst_lock); + } dest->af = udest->af; @@ -1011,7 +1054,7 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest, dest->port = udest->port; atomic_set(&dest->activeconns, 0); - atomic_set(&dest->inactconns, 0); + atomic_set(&dest->totalconns, 0); atomic_set(&dest->persistconns, 0); refcount_set(&dest->refcnt, 1); @@ -1055,6 +1098,9 @@ ip_vs_add_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest) return -ERANGE; } + if (udest->u_threshold > INT_MAX) + return -EINVAL; + if (udest->tun_type == IP_VS_CONN_F_TUNNEL_TYPE_GUE) { if (udest->tun_port == 0) { pr_err("%s(): tunnel port is zero\n", __func__); @@ -1126,6 +1172,9 @@ ip_vs_edit_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest) return -ERANGE; } + if (udest->u_threshold > INT_MAX) + return -EINVAL; + if (udest->tun_type == IP_VS_CONN_F_TUNNEL_TYPE_GUE) { if (udest->tun_port == 0) { pr_err("%s(): tunnel port is zero\n", __func__); @@ -2223,7 +2272,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v) ip_vs_fwd_name(atomic_read(&dest->conn_flags)), atomic_read(&dest->weight), atomic_read(&dest->activeconns), - atomic_read(&dest->inactconns)); + ip_vs_dest_inactconns(dest)); else #endif seq_printf(seq, @@ -2234,7 +2283,7 @@ static int ip_vs_info_seq_show(struct seq_file *seq, void *v) ip_vs_fwd_name(atomic_read(&dest->conn_flags)), atomic_read(&dest->weight), atomic_read(&dest->activeconns), - atomic_read(&dest->inactconns)); + ip_vs_dest_inactconns(dest)); } } @@ -2712,10 +2761,10 @@ __ip_vs_get_dest_entries(struct netns_ipvs *ipvs, const struct ip_vs_get_dests * entry.port = dest->port; entry.conn_flags = atomic_read(&dest->conn_flags); entry.weight = atomic_read(&dest->weight); - entry.u_threshold = dest->u_threshold; - entry.l_threshold = dest->l_threshold; + entry.u_threshold = READ_ONCE(dest->u_threshold); + entry.l_threshold = READ_ONCE(dest->l_threshold); entry.activeconns = atomic_read(&dest->activeconns); - entry.inactconns = atomic_read(&dest->inactconns); + entry.inactconns = ip_vs_dest_inactconns(dest); entry.persistconns = atomic_read(&dest->persistconns); ip_vs_copy_stats(&kstats, &dest->stats); ip_vs_export_stats_user(&entry.stats, &kstats); @@ -3314,12 +3363,14 @@ static int ip_vs_genl_fill_dest(struct sk_buff *skb, struct ip_vs_dest *dest) dest->tun_port) || nla_put_u16(skb, IPVS_DEST_ATTR_TUN_FLAGS, dest->tun_flags) || - nla_put_u32(skb, IPVS_DEST_ATTR_U_THRESH, dest->u_threshold) || - nla_put_u32(skb, IPVS_DEST_ATTR_L_THRESH, dest->l_threshold) || + nla_put_u32(skb, IPVS_DEST_ATTR_U_THRESH, + READ_ONCE(dest->u_threshold)) || + nla_put_u32(skb, IPVS_DEST_ATTR_L_THRESH, + READ_ONCE(dest->l_threshold)) || nla_put_u32(skb, IPVS_DEST_ATTR_ACTIVE_CONNS, atomic_read(&dest->activeconns)) || nla_put_u32(skb, IPVS_DEST_ATTR_INACT_CONNS, - atomic_read(&dest->inactconns)) || + ip_vs_dest_inactconns(dest)) || nla_put_u32(skb, IPVS_DEST_ATTR_PERSIST_CONNS, atomic_read(&dest->persistconns)) || nla_put_u16(skb, IPVS_DEST_ATTR_ADDR_FAMILY, dest->af)) diff --git a/net/netfilter/ipvs/ip_vs_lc.c b/net/netfilter/ipvs/ip_vs_lc.c index 9d34d81fc6f1..534db3c4a016 100644 --- a/net/netfilter/ipvs/ip_vs_lc.c +++ b/net/netfilter/ipvs/ip_vs_lc.c @@ -31,7 +31,7 @@ ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb, /* * Simply select the server with the least number of - * (activeconns<<5) + inactconns + * (activeconns*256) + totalconns * Except whose weight is equal to zero. * If the weight is equal to zero, it means that the server is * quiesced, the existing connections to the server still get @@ -57,7 +57,7 @@ ip_vs_lc_schedule(struct ip_vs_service *svc, const struct sk_buff *skb, IP_VS_DBG_ADDR(least->af, &least->addr), ntohs(least->port), atomic_read(&least->activeconns), - atomic_read(&least->inactconns)); + ip_vs_dest_inactconns(least)); return least; } diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c index c67317be17df..91ce6ef6569e 100644 --- a/net/netfilter/ipvs/ip_vs_proto_sctp.c +++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c @@ -443,12 +443,10 @@ set_sctp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp, if (!(cp->flags & IP_VS_CONN_F_INACTIVE) && (next_state != IP_VS_SCTP_S_ESTABLISHED)) { atomic_dec(&dest->activeconns); - atomic_inc(&dest->inactconns); cp->flags |= IP_VS_CONN_F_INACTIVE; } else if ((cp->flags & IP_VS_CONN_F_INACTIVE) && (next_state == IP_VS_SCTP_S_ESTABLISHED)) { atomic_inc(&dest->activeconns); - atomic_dec(&dest->inactconns); cp->flags &= ~IP_VS_CONN_F_INACTIVE; } } diff --git a/net/netfilter/ipvs/ip_vs_proto_tcp.c b/net/netfilter/ipvs/ip_vs_proto_tcp.c index b382810156b2..662de09b27b8 100644 --- a/net/netfilter/ipvs/ip_vs_proto_tcp.c +++ b/net/netfilter/ipvs/ip_vs_proto_tcp.c @@ -555,12 +555,10 @@ set_tcp_state(struct ip_vs_proto_data *pd, struct ip_vs_conn *cp, if (!(cp->flags & IP_VS_CONN_F_INACTIVE) && !tcp_state_active(new_state)) { atomic_dec(&dest->activeconns); - atomic_inc(&dest->inactconns); cp->flags |= IP_VS_CONN_F_INACTIVE; } else if ((cp->flags & IP_VS_CONN_F_INACTIVE) && tcp_state_active(new_state)) { atomic_inc(&dest->activeconns); - atomic_dec(&dest->inactconns); cp->flags &= ~IP_VS_CONN_F_INACTIVE; } } diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c index e1dea9a82050..bade3fa936f1 100644 --- a/net/netfilter/ipvs/ip_vs_sync.c +++ b/net/netfilter/ipvs/ip_vs_sync.c @@ -879,13 +879,10 @@ static void ip_vs_proc_conn(struct netns_ipvs *ipvs, struct ip_vs_conn_param *pa spin_lock_bh(&cp->lock); if ((cp->flags ^ flags) & IP_VS_CONN_F_INACTIVE && !(flags & IP_VS_CONN_F_TEMPLATE) && dest) { - if (flags & IP_VS_CONN_F_INACTIVE) { + if (flags & IP_VS_CONN_F_INACTIVE) atomic_dec(&dest->activeconns); - atomic_inc(&dest->inactconns); - } else { + else atomic_inc(&dest->activeconns); - atomic_dec(&dest->inactconns); - } } flags &= IP_VS_CONN_F_BACKUP_UPD_MASK; flags |= cp->flags & ~IP_VS_CONN_F_BACKUP_UPD_MASK; diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c index 4326d5ea0400..0f6147ea9e67 100644 --- a/net/netfilter/nf_conntrack_sip.c +++ b/net/netfilter/nf_conntrack_sip.c @@ -1622,7 +1622,7 @@ static int sip_help_tcp(struct sk_buff *skb, unsigned int protoff, unsigned int matchoff, matchlen; unsigned int msglen, origlen; const char *dptr, *end; - s16 diff, tdiff = 0; + s32 diff, tdiff = 0; int ret = NF_ACCEPT; unsigned long clen; bool term; diff --git a/net/netfilter/nf_nat_sip.c b/net/netfilter/nf_nat_sip.c index 76a8bbb44951..7687d3d15df2 100644 --- a/net/netfilter/nf_nat_sip.c +++ b/net/netfilter/nf_nat_sip.c @@ -313,7 +313,7 @@ static unsigned int nf_nat_sip(struct sk_buff *skb, unsigned int protoff, } static void nf_nat_sip_seq_adjust(struct sk_buff *skb, unsigned int protoff, - s16 off) + s32 off) { enum ip_conntrack_info ctinfo; struct nf_conn *ct = nf_ct_get(skb, &ctinfo); diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c index dbafb964bd70..f24d1276f531 100644 --- a/net/netfilter/nft_payload.c +++ b/net/netfilter/nft_payload.c @@ -216,9 +216,7 @@ static int nft_payload_dump(struct sk_buff *skb, const struct nft_expr *expr) static bool nft_payload_offload_mask(struct nft_offload_reg *reg, u32 priv_len, u32 field_len) { - unsigned int remainder, delta, k; struct nft_data mask = {}; - __be32 remainder_mask; if (priv_len == field_len) { memset(®->mask, 0xff, priv_len); @@ -227,15 +225,7 @@ static bool nft_payload_offload_mask(struct nft_offload_reg *reg, return false; } - memset(&mask, 0xff, field_len); - remainder = priv_len % sizeof(u32); - if (remainder) { - k = priv_len / sizeof(u32); - delta = field_len - priv_len; - remainder_mask = htonl(~((1 << (delta * BITS_PER_BYTE)) - 1)); - mask.data[k] = (__force u32)remainder_mask; - } - + memset(&mask, 0xff, priv_len); memcpy(®->mask, &mask, field_len); return true; diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 9c5cfd74a0ee..26918fa575af 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -118,6 +118,7 @@ struct xt_hashlimit_htable { refcount_t use; u_int8_t family; bool rnd_initialized; + bool ratematch; struct hashlimit_cfg3 cfg; /* config */ @@ -325,6 +326,7 @@ static int htable_create(struct net *net, struct hashlimit_cfg3 *cfg, vfree(hinfo); return -ENOMEM; } + hinfo->ratematch = !!(cfg->mode & XT_HASHLIMIT_RATE_MATCH); spin_lock_init(&hinfo->lock); switch (revision) { @@ -868,7 +870,10 @@ static int hashlimit_mt_check_common(const struct xt_mtchk_param *par, } /* Check for overflow. */ - if (revision >= 3 && cfg->mode & XT_HASHLIMIT_RATE_MATCH) { + if (cfg->mode & XT_HASHLIMIT_RATE_MATCH) { + if (revision < 3) + return -EINVAL; + if (cfg->avg == 0 || cfg->avg > U32_MAX) { pr_info_ratelimited("invalid rate\n"); return -ERANGE; @@ -901,6 +906,15 @@ static int hashlimit_mt_check_common(const struct xt_mtchk_param *par, mutex_unlock(&hashlimit_mutex); return ret; } + } else { + if ((cfg->mode & XT_HASHLIMIT_RATE_MATCH && + !(*hinfo)->ratematch) || + (!(cfg->mode & XT_HASHLIMIT_RATE_MATCH) && + (*hinfo)->ratematch)) { + mutex_unlock(&hashlimit_mutex); + htable_put(*hinfo); + return -EINVAL; + } } mutex_unlock(&hashlimit_mutex); diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c index aa240953d766..6fd22d3632ba 100644 --- a/net/openvswitch/actions.c +++ b/net/openvswitch/actions.c @@ -856,12 +856,8 @@ static void do_output(struct datapath *dp, struct sk_buff *skb, int out_port, u16 mru = OVS_CB(skb)->mru; u32 cutlen = OVS_CB(skb)->cutlen; - if (unlikely(cutlen > 0)) { - if (skb->len - cutlen > ovs_mac_header_len(key)) - pskb_trim(skb, skb->len - cutlen); - else - pskb_trim(skb, ovs_mac_header_len(key)); - } + if (unlikely(cutlen < skb->len)) + pskb_trim(skb, max(cutlen, ovs_mac_header_len(key))); if (likely(!mru || (skb->len <= mru + vport->dev->hard_header_len))) { @@ -1111,6 +1107,10 @@ static int execute_masked_set_action(struct sk_buff *skb, return err; } +/* When 'last' is true, recirc() should always consume the 'skb'. + * Otherwise, recirc() should keep 'skb' intact regardless what + * actions are executed on recirculation. + */ static int execute_recirc(struct datapath *dp, struct sk_buff *skb, struct sw_flow_key *key, const struct nlattr *a, bool last) @@ -1121,8 +1121,11 @@ static int execute_recirc(struct datapath *dp, struct sk_buff *skb, int err; err = ovs_flow_key_update(skb, key); - if (err) + if (err) { + if (last) + kfree_skb(skb); return err; + } } BUG_ON(!is_flow_key_valid(key)); @@ -1242,22 +1245,21 @@ static int do_execute_actions(struct datapath *dp, struct sk_buff *skb, clone = skb_clone(skb, GFP_ATOMIC); if (clone) do_output(dp, clone, port, key); - OVS_CB(skb)->cutlen = 0; + OVS_CB(skb)->cutlen = U32_MAX; break; } case OVS_ACTION_ATTR_TRUNC: { struct ovs_action_trunc *trunc = nla_data(a); - if (skb->len > trunc->max_len) - OVS_CB(skb)->cutlen = skb->len - trunc->max_len; + OVS_CB(skb)->cutlen = trunc->max_len; break; } case OVS_ACTION_ATTR_USERSPACE: output_userspace(dp, skb, key, a, attr, len, OVS_CB(skb)->cutlen); - OVS_CB(skb)->cutlen = 0; + OVS_CB(skb)->cutlen = U32_MAX; break; case OVS_ACTION_ATTR_HASH: @@ -1331,7 +1333,7 @@ static int do_execute_actions(struct datapath *dp, struct sk_buff *skb, if (!is_flow_key_valid(key)) { err = ovs_flow_key_update(skb, key); if (err) - return err; + break; } err = ovs_ct_execute(ovs_dp_get_net(dp), skb, key, diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c index 0202111cda35..cef3cefae9b4 100644 --- a/net/openvswitch/datapath.c +++ b/net/openvswitch/datapath.c @@ -250,7 +250,7 @@ void ovs_dp_process_packet(struct sk_buff *skb, struct sw_flow_key *key) upcall.portid = ovs_vport_find_upcall_portid(p, skb); upcall.mru = OVS_CB(skb)->mru; - error = ovs_dp_upcall(dp, skb, key, &upcall, 0); + error = ovs_dp_upcall(dp, skb, key, &upcall, U32_MAX); switch (error) { case 0: case -EAGAIN: @@ -413,7 +413,8 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb, struct sk_buff *nskb = NULL; struct sk_buff *user_skb = NULL; /* to be queued to userspace */ struct nlattr *nla; - size_t len; + size_t msg_size; + size_t skb_len; unsigned int hlen; int err, dp_ifindex; u64 hash; @@ -434,7 +435,8 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb, skb = nskb; } - if (nla_attr_size(skb->len) > USHRT_MAX) { + skb_len = min(skb->len, cutlen); + if (nla_attr_size(skb_len) > USHRT_MAX) { err = -EFBIG; goto out; } @@ -449,13 +451,13 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb, * padding logic. Only perform zerocopy if padding is not required. */ if (dp->user_features & OVS_DP_F_UNALIGNED) - hlen = skb_zerocopy_headlen(skb); + hlen = min(skb_zerocopy_headlen(skb), cutlen); else - hlen = skb->len; + hlen = skb_len; - len = upcall_msg_size(upcall_info, hlen - cutlen, - OVS_CB(skb)->acts_origlen); - user_skb = genlmsg_new(len, GFP_ATOMIC); + msg_size = upcall_msg_size(upcall_info, hlen, + OVS_CB(skb)->acts_origlen); + user_skb = genlmsg_new(msg_size, GFP_ATOMIC); if (!user_skb) { err = -ENOMEM; goto out; @@ -516,7 +518,7 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb, } /* Add OVS_PACKET_ATTR_LEN when packet is truncated */ - if (cutlen > 0 && + if (skb_len < skb->len && nla_put_u32(user_skb, OVS_PACKET_ATTR_LEN, skb->len)) { err = -ENOBUFS; goto out; @@ -541,9 +543,9 @@ static int queue_userspace_packet(struct datapath *dp, struct sk_buff *skb, err = -ENOBUFS; goto out; } - nla->nla_len = nla_attr_size(skb->len - cutlen); + nla->nla_len = nla_attr_size(skb_len); - err = skb_zerocopy(user_skb, skb, skb->len - cutlen, hlen); + err = skb_zerocopy(user_skb, skb, skb_len, hlen); if (err) goto out; @@ -600,6 +602,7 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info) packet->ignore_df = 1; } OVS_CB(packet)->mru = mru; + OVS_CB(packet)->cutlen = U32_MAX; if (a[OVS_PACKET_ATTR_HASH]) { hash = nla_get_u64(a[OVS_PACKET_ATTR_HASH]); @@ -1055,9 +1058,8 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info) error = -EEXIST; goto err_unlock_ovs; } - /* The flow identifier has to be the same for flow updates. - * Look for any overlapping flow. - */ + + /* Look for any overlapping flow. */ if (unlikely(!ovs_flow_cmp(flow, &match))) { if (ovs_identifier_is_key(&flow->id)) flow = ovs_flow_tbl_lookup_exact(&dp->table, @@ -1069,6 +1071,30 @@ static int ovs_flow_cmd_new(struct sk_buff *skb, struct genl_info *info) goto err_unlock_ovs; } } + + if (unlikely(reply)) { + size_t cur, req; + + cur = ovs_flow_cmd_msg_size(acts, &new_flow->id, + ufid_flags); + req = ovs_flow_cmd_msg_size(acts, &flow->id, + ufid_flags); + if (cur < req) { + struct sk_buff *resized; + + resized = ovs_flow_cmd_alloc_info(acts, + &flow->id, + info, false, + ufid_flags); + if (IS_ERR(resized)) { + error = PTR_ERR(resized); + goto err_unlock_ovs; + } + kfree_skb(reply); + reply = resized; + } + } + /* Update actions. */ old_acts = ovsl_dereference(flow->sf_acts); rcu_assign_pointer(flow->sf_acts, acts); diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h index fcfe6cb46441..86a47998a359 100644 --- a/net/openvswitch/datapath.h +++ b/net/openvswitch/datapath.h @@ -114,7 +114,7 @@ struct datapath { * @mru: The maximum received fragement size; 0 if the packet is not * fragmented. * @acts_origlen: The netlink size of the flow actions applied to this skb. - * @cutlen: The number of bytes from the packet end to be removed. + * @cutlen: The number of bytes in the packet to preserve on output. */ struct ovs_skb_cb { struct vport *input_vport; diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c index 52ba0e7721cd..635edddbd55f 100644 --- a/net/openvswitch/flow.c +++ b/net/openvswitch/flow.c @@ -749,8 +749,6 @@ static int key_extract_l3l4(struct sk_buff *skb, struct sw_flow_key *key) * Ethernet header * @key: output flow key * - * The caller must ensure that skb->len >= ETH_HLEN. - * * Initializes @skb header fields as follows: * * - skb->mac_header: the L2 header. @@ -770,8 +768,6 @@ static int key_extract_l3l4(struct sk_buff *skb, struct sw_flow_key *key) */ static int key_extract(struct sk_buff *skb, struct sw_flow_key *key) { - struct ethhdr *eth; - /* Flags are always used as part of stats */ key->tp.flags = 0; @@ -786,6 +782,13 @@ static int key_extract(struct sk_buff *skb, struct sw_flow_key *key) skb_reset_network_header(skb); key->eth.type = skb->protocol; } else { + struct ethhdr *eth; + int err; + + err = check_header(skb, ETH_HLEN); + if (unlikely(err)) + return err; + eth = eth_hdr(skb); ether_addr_copy(key->eth.src, eth->h_source); ether_addr_copy(key->eth.dst, eth->h_dest); diff --git a/net/openvswitch/meter.c b/net/openvswitch/meter.c index 67b471c666c7..966a9f433d43 100644 --- a/net/openvswitch/meter.c +++ b/net/openvswitch/meter.c @@ -136,18 +136,10 @@ static void dp_meter_instance_remove(struct dp_meter_instance *ti, static int attach_meter(struct dp_meter_table *tbl, struct dp_meter *meter) { - struct dp_meter_instance *ti = rcu_dereference_ovsl(tbl->ti); - u32 hash = meter_hash(ti, meter->id); + struct dp_meter_instance *ti; + u32 hash; int err; - /* In generally, slots selected should be empty, because - * OvS uses id-pool to fetch a available id. - */ - if (unlikely(rcu_dereference_ovsl(ti->dp_meters[hash]))) - return -EBUSY; - - dp_meter_instance_insert(ti, meter); - /* That function is thread-safe. */ tbl->count++; if (tbl->count >= tbl->max_meters_allowed) { @@ -155,16 +147,29 @@ static int attach_meter(struct dp_meter_table *tbl, struct dp_meter *meter) goto attach_err; } - if (tbl->count >= ti->n_meters && - dp_meter_instance_realloc(tbl, ti->n_meters * 2)) { - err = -ENOMEM; + ti = rcu_dereference_ovsl(tbl->ti); + if (tbl->count >= ti->n_meters) { + err = dp_meter_instance_realloc(tbl, ti->n_meters * 2); + if (err) + goto attach_err; + + ti = rcu_dereference_ovsl(tbl->ti); + } + + hash = meter_hash(ti, meter->id); + + /* In general, selected slots should be empty, because + * OvS uses id-pool to fetch available ids. + */ + if (unlikely(rcu_dereference_ovsl(ti->dp_meters[hash]))) { + err = -EBUSY; goto attach_err; } + dp_meter_instance_insert(ti, meter); return 0; attach_err: - dp_meter_instance_remove(ti, meter); tbl->count--; return err; } diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c index 25197e14c123..a2a9a602dd25 100644 --- a/net/openvswitch/vport.c +++ b/net/openvswitch/vport.c @@ -438,7 +438,7 @@ int ovs_vport_receive(struct vport *vport, struct sk_buff *skb, OVS_CB(skb)->input_vport = vport; OVS_CB(skb)->mru = 0; - OVS_CB(skb)->cutlen = 0; + OVS_CB(skb)->cutlen = U32_MAX; if (unlikely(dev_net(skb->dev) != ovs_dp_get_net(vport->dp))) { u32 mark; diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index e0ea02e86b38..2c1a0c5e6df1 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1942,11 +1942,12 @@ static void packet_parse_headers(struct sk_buff *skb, struct socket *sock) { int depth; + /* On TX skb->data is the L2 header; anchor it for all socket types. */ + skb_reset_mac_header(skb); + if ((!skb->protocol || skb->protocol == htons(ETH_P_ALL)) && - sock->type == SOCK_RAW) { - skb_reset_mac_header(skb); + sock->type == SOCK_RAW) skb->protocol = dev_parse_header_protocol(skb); - } /* Move network header to the right position for VLAN tagged packets */ if (likely(skb->dev->type == ARPHRD_ETHER) && @@ -4548,7 +4549,11 @@ static int packet_set_ring(struct sock *sk, union tpacket_req_u *req_u, spin_lock(&po->bind_lock); WRITE_ONCE(po->num, num); - if (was_running) + /* + * NETDEV_UNREGISTER may have invalidated the binding while bind_lock + * was dropped above. Do not re-add a fanout hook to a dead device. + */ + if (was_running && READ_ONCE(po->ifindex) != -1) register_prot_hook(sk); spin_unlock(&po->bind_lock); diff --git a/net/phonet/pep.c b/net/phonet/pep.c index ebfca69ac4d2..81b90e02631d 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -55,6 +55,8 @@ static unsigned char *pep_get_sb(struct sk_buff *skb, u8 *ptype, u8 *plen, ph = skb_header_pointer(skb, 0, 2, &h); if (ph == NULL || ph->sb_len < 2 || !pskb_may_pull(skb, ph->sb_len)) return NULL; + /* pskb_may_pull() may have reallocated the head; refetch ph. */ + ph = skb_header_pointer(skb, 0, 2, &h); ph->sb_len -= 2; *ptype = ph->sb_type; *plen = ph->sb_len; diff --git a/net/qrtr/af_qrtr.c b/net/qrtr/af_qrtr.c index 27a7d1ff7f24..94bfb0397e5d 100644 --- a/net/qrtr/af_qrtr.c +++ b/net/qrtr/af_qrtr.c @@ -1258,6 +1258,14 @@ static int qrtr_create(struct net *net, struct socket *sock, if (sock->type != SOCK_DGRAM) return -EPROTOTYPE; + /* QRTR keeps its port and node state in module-global variables that + * are not partitioned per network namespace, and the in-kernel name + * service only operates in init_net. Confine the family to init_net so + * a socket in another namespace cannot reach the global control plane. + */ + if (!net_eq(net, &init_net)) + return -EAFNOSUPPORT; + sk = sk_alloc(net, AF_QIPCRTR, GFP_KERNEL, &qrtr_proto, kern); if (!sk) return -ENOMEM; diff --git a/net/qrtr/ns.c b/net/qrtr/ns.c index 559aad0e3621..4df5f0a9b741 100644 --- a/net/qrtr/ns.c +++ b/net/qrtr/ns.c @@ -68,22 +68,18 @@ struct qrtr_server { struct qrtr_node { unsigned int id; struct xarray servers; + u32 server_count; }; -/* Max lookup limit is chosen based on the current platform requirements. If the - * requirement changes in the future, this value can be increased. - */ -#define QRTR_NS_MAX_LOOKUPS 64 - /* Max nodes, server, lookup limits are chosen based on the current platform * requirements. If the requirement changes in the future, these values can be * increased. */ -#define QRTR_NS_MAX_NODES 64 +#define QRTR_NS_MAX_NODES 512 #define QRTR_NS_MAX_SERVERS 256 -#define QRTR_NS_MAX_LOOKUPS 64 +#define QRTR_NS_MAX_LOOKUPS 128 -static u8 node_count; +static u16 node_count; static struct qrtr_node *node_get(unsigned int node_id) { @@ -249,6 +245,17 @@ static struct qrtr_server *server_add(unsigned int service, if (!service || !port) return NULL; + node = node_get(node_id); + if (!node) + return NULL; + + /* Make sure the new servers per port are capped at the maximum value */ + old = xa_load(&node->servers, port); + if (!old && node->server_count >= QRTR_NS_MAX_SERVERS) { + pr_err_ratelimited("QRTR client node %u exceeds max server limit!\n", node_id); + return NULL; + } + srv = kzalloc(sizeof(*srv), GFP_KERNEL); if (!srv) return NULL; @@ -258,10 +265,6 @@ static struct qrtr_server *server_add(unsigned int service, srv->node = node_id; srv->port = port; - node = node_get(node_id); - if (!node) - goto err; - /* Delete the old server on the same port */ old = xa_store(&node->servers, port, srv, GFP_KERNEL); if (old) { @@ -272,6 +275,8 @@ static struct qrtr_server *server_add(unsigned int service, } else { kfree(old); } + } else { + node->server_count++; } trace_qrtr_ns_server_add(srv->service, srv->instance, @@ -312,6 +317,7 @@ static int server_del(struct qrtr_node *node, unsigned int port, bool bcast) } kfree(srv); + node->server_count--; return 0; } @@ -406,6 +412,7 @@ static int ctrl_cmd_bye(struct sockaddr_qrtr *from) delete_node: xa_erase(&nodes, from->sq_node); kfree(node); + node_count--; return ret; } @@ -708,7 +715,7 @@ static void qrtr_ns_worker(struct work_struct *work) } if (ret < 0) - pr_err("failed while handling packet from %d:%d", + pr_err_ratelimited("failed while handling packet from %d:%d", sq.sq_node, sq.sq_port); } diff --git a/net/rds/ib.c b/net/rds/ib.c index ec45664f3876..810a9b76101f 100644 --- a/net/rds/ib.c +++ b/net/rds/ib.c @@ -431,6 +431,10 @@ static int rds_ib_laddr_check_cm(struct net *net, const struct in6_addr *addr, sa = (struct sockaddr *)&sin; } else { #if IS_ENABLED(CONFIG_IPV6) + if (!ipv6_mod_enabled()) { + ret = -EADDRNOTAVAIL; + goto out; + } memset(&sin6, 0, sizeof(sin6)); sin6.sin6_family = AF_INET6; sin6.sin6_addr = *addr; diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c index 5289afbb61aa..e50e01abb079 100644 --- a/net/rds/ib_cm.c +++ b/net/rds/ib_cm.c @@ -810,6 +810,10 @@ int rds_ib_cm_handle_connect(struct rdma_cm_id *cm_id, dp = event->param.conn.private_data; if (isv6) { #if IS_ENABLED(CONFIG_IPV6) + if (!ipv6_mod_enabled()) { + err = -EOPNOTSUPP; + goto out; + } dp_cmn = &dp->ricp_v6.dp_cmn; saddr6 = &dp->ricp_v6.dp_saddr; daddr6 = &dp->ricp_v6.dp_daddr; diff --git a/net/rds/recv.c b/net/rds/recv.c index a316180d3c32..7fd77e1b4fe7 100644 --- a/net/rds/recv.c +++ b/net/rds/recv.c @@ -365,6 +365,21 @@ void rds_recv_incoming(struct rds_connection *conn, struct in6_addr *saddr, goto out; } + /* + * rds_find_bound() uses a global (netns-agnostic) hash table. + * An RDS connection created in netns A can match a socket bound + * in the init netns, delivering inc cross-netns with inc->i_conn + * pointing into netns A. When cleanup_net() then frees that conn, + * any subsequent dereference of inc->i_conn is a use-after-free. + * Drop the inc if the receiving socket lives in a different netns. + */ + if (!net_eq(sock_net(rds_rs_to_sk(rs)), rds_conn_net(conn))) { + rds_stats_inc(s_recv_drop_no_sock); + rds_sock_put(rs); + rs = NULL; + goto out; + } + /* Process extension headers */ rds_recv_incoming_exthdrs(inc, rs); diff --git a/net/rds/tcp.c b/net/rds/tcp.c index b560d06e6d96..f66cbf0b9895 100644 --- a/net/rds/tcp.c +++ b/net/rds/tcp.c @@ -330,21 +330,25 @@ int rds_tcp_laddr_check(struct net *net, const struct in6_addr *addr, /* If the scope_id is specified, check only those addresses * hosted on the specified interface. */ + rcu_read_lock(); if (scope_id != 0) { - rcu_read_lock(); dev = dev_get_by_index_rcu(net, scope_id); /* scope_id is not valid... */ if (!dev) { rcu_read_unlock(); return -EADDRNOTAVAIL; } - rcu_read_unlock(); } #if IS_ENABLED(CONFIG_IPV6) - ret = ipv6_chk_addr(net, addr, dev, 0); - if (ret) - return 0; + if (ipv6_mod_enabled()) { + ret = ipv6_chk_addr(net, addr, dev, 0); + if (ret) { + rcu_read_unlock(); + return 0; + } + } #endif + rcu_read_unlock(); return -EADDRNOTAVAIL; } diff --git a/net/sched/act_gact.c b/net/sched/act_gact.c index 82148ca7d754..6560ca755589 100644 --- a/net/sched/act_gact.c +++ b/net/sched/act_gact.c @@ -88,6 +88,11 @@ static int tcf_gact_init(struct net *net, struct nlattr *nla, p_parm = nla_data(tb[TCA_GACT_PROB]); if (p_parm->ptype >= MAX_RAND) return -EINVAL; + if (!tcf_action_valid(p_parm->paction)) { + NL_SET_ERR_MSG(extack, + "invalid fallback control action"); + return -EINVAL; + } if (TC_ACT_EXT_CMP(p_parm->paction, TC_ACT_GOTO_CHAIN)) { NL_SET_ERR_MSG(extack, "goto chain not allowed on fallback"); diff --git a/net/sched/act_police.c b/net/sched/act_police.c index 13878b0520f3..498250c389a0 100644 --- a/net/sched/act_police.c +++ b/net/sched/act_police.c @@ -136,6 +136,12 @@ static int tcf_police_init(struct net *net, struct nlattr *nla, if (tb[TCA_POLICE_RESULT]) { tcfp_result = nla_get_u32(tb[TCA_POLICE_RESULT]); + if (!tcf_action_valid(tcfp_result)) { + NL_SET_ERR_MSG(extack, + "invalid fallback control action"); + err = -EINVAL; + goto failure; + } if (TC_ACT_EXT_CMP(tcfp_result, TC_ACT_GOTO_CHAIN)) { NL_SET_ERR_MSG(extack, "goto chain not allowed on fallback"); diff --git a/net/sched/act_tunnel_key.c b/net/sched/act_tunnel_key.c index c79f23367dfb..0be95240b939 100644 --- a/net/sched/act_tunnel_key.c +++ b/net/sched/act_tunnel_key.c @@ -342,14 +342,20 @@ static const struct nla_policy tunnel_key_policy[TCA_TUNNEL_KEY_MAX + 1] = { [TCA_TUNNEL_KEY_ENC_TTL] = { .type = NLA_U8 }, }; -static void tunnel_key_release_params(struct tcf_tunnel_key_params *p) +static void tunnel_key_release_params_rcu(struct rcu_head *head) { - if (!p) - return; + struct tcf_tunnel_key_params *p = container_of(head, typeof(*p), rcu); + if (p->tcft_action == TCA_TUNNEL_KEY_ACT_SET) dst_release(&p->tcft_enc_metadata->dst); + kfree(p); +} - kfree_rcu(p, rcu); +static void tunnel_key_release_params(struct tcf_tunnel_key_params *p) +{ + if (!p) + return; + call_rcu(&p->rcu, tunnel_key_release_params_rcu); } static int tunnel_key_init(struct net *net, struct nlattr *nla, diff --git a/net/sched/cls_route.c b/net/sched/cls_route.c index 194468d0355a..1ce483fd3037 100644 --- a/net/sched/cls_route.c +++ b/net/sched/cls_route.c @@ -51,6 +51,7 @@ struct route4_filter { struct tcf_result res; struct tcf_exts exts; u32 handle; + bool dying; struct route4_bucket *bkt; struct tcf_proto *tp; struct rcu_work rwork; @@ -65,9 +66,11 @@ static inline int route4_fastmap_hash(u32 id, int iif) static DEFINE_SPINLOCK(fastmap_lock); static void -route4_reset_fastmap(struct route4_head *head) +route4_reset_fastmap(struct route4_head *head, struct route4_filter *f) { spin_lock_bh(&fastmap_lock); + if (f) + f->dying = true; memset(head->fastmap, 0, sizeof(head->fastmap)); spin_unlock_bh(&fastmap_lock); } @@ -80,9 +83,11 @@ route4_set_fastmap(struct route4_head *head, u32 id, int iif, /* fastmap updates must look atomic to aling id, iff, filter */ spin_lock_bh(&fastmap_lock); - head->fastmap[h].id = id; - head->fastmap[h].iif = iif; - head->fastmap[h].filter = f; + if (f == ROUTE4_FAILURE || !f->dying) { + head->fastmap[h].id = id; + head->fastmap[h].iif = iif; + head->fastmap[h].filter = f; + } spin_unlock_bh(&fastmap_lock); } @@ -295,6 +300,13 @@ static void route4_destroy(struct tcf_proto *tp, bool rtnl_held, next = rtnl_dereference(f->next); RCU_INIT_POINTER(b->ht[h2], next); tcf_unbind_filter(tp, &f->res); + /* Mark the filter dying under fastmap_lock so + * any in-flight reader that still holds it + * will skip the republish in route4_set_fastmap(). + */ + spin_lock_bh(&fastmap_lock); + f->dying = true; + spin_unlock_bh(&fastmap_lock); if (tcf_exts_get_net(&f->exts)) route4_queue_work(f); else @@ -305,6 +317,11 @@ static void route4_destroy(struct tcf_proto *tp, bool rtnl_held, kfree_rcu(b, rcu); } } + + /* All filters are unlinked and marked dying, so no in-flight + * reader can republish a stale entry after this reset. + */ + route4_reset_fastmap(head, NULL); kfree_rcu(head, rcu); } @@ -332,11 +349,11 @@ static int route4_delete(struct tcf_proto *tp, void *arg, bool *last, /* unlink it */ RCU_INIT_POINTER(*fp, rtnl_dereference(f->next)); - /* Remove any fastmap lookups that might ref filter - * notice we unlink'd the filter so we can't get it - * back in the fastmap. + /* Clear any fastmap entries that may ref this filter and + * mark it dying so in-flight readers can't republish it + * after the reset. */ - route4_reset_fastmap(head); + route4_reset_fastmap(head, f); /* Delete it */ tcf_unbind_filter(tp, &f->res); @@ -551,7 +568,7 @@ static int route4_change(struct net *net, struct sk_buff *in_skb, } } - route4_reset_fastmap(head); + route4_reset_fastmap(head, fold); *arg = f; if (fold) { tcf_unbind_filter(tp, &fold->res); diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c index ad2597deebab..d94c9c11ac1e 100644 --- a/net/sched/sch_cake.c +++ b/net/sched/sch_cake.c @@ -1281,7 +1281,6 @@ static struct sk_buff *cake_ack_filter(struct cake_sched_data *q, seglen = ntohs(ipv6h_check->payload_len); } else { - WARN_ON(1); /* shouldn't happen */ continue; } diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 8b97b13d4c2f..c141f8a1262d 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -545,6 +545,9 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc, asoc->addip_last_asconf->transport == peer) asoc->addip_last_asconf->transport = NULL; + if (asoc->new_transport == peer) + asoc->new_transport = NULL; + /* If we have something on the transmitted list, we have to * save it off. The best place is the active path. */ @@ -575,6 +578,10 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc, if (ch->transport == peer) ch->transport = NULL; + list_for_each_entry(ch, &asoc->outqueue.control_chunk_list, list) + if (ch->transport == peer) + ch->transport = NULL; + asoc->peer.transport_count--; sctp_ulpevent_notify_peer_addr_change(peer, SCTP_ADDR_REMOVED, 0); @@ -616,6 +623,9 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc, return peer; } + if (asoc->peer.transport_count == U16_MAX) + return NULL; + peer = sctp_transport_new(asoc->base.net, addr, gfp); if (!peer) return NULL; @@ -1725,6 +1735,8 @@ void sctp_asconf_queue_teardown(struct sctp_association *asoc) sctp_assoc_free_asconf_queue(asoc); /* Free any cached ASCONF chunk. */ - if (asoc->addip_last_asconf) + if (asoc->addip_last_asconf) { sctp_chunk_free(asoc->addip_last_asconf); + asoc->addip_last_asconf = NULL; + } } diff --git a/net/sctp/auth.c b/net/sctp/auth.c index 34964145514e..a983f96bb0c3 100644 --- a/net/sctp/auth.c +++ b/net/sctp/auth.c @@ -766,7 +766,7 @@ int sctp_auth_ep_add_chunkid(struct sctp_endpoint *ep, __u8 chunk_id) /* Check if we can add this chunk to the array */ param_len = ntohs(p->param_hdr.length); nchunks = param_len - sizeof(struct sctp_paramhdr); - if (nchunks == SCTP_NUM_CHUNK_TYPES) + if (nchunks == SCTP_AUTH_MAX_CHUNKS) return -EINVAL; p->chunks[nchunks] = chunk_id; diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c index dc29ac0f8d3f..be2b9fee59d7 100644 --- a/net/sctp/outqueue.c +++ b/net/sctp/outqueue.c @@ -647,6 +647,7 @@ static int __sctp_outq_flush_rtx(struct sctp_outq *q, struct sctp_packet *pkt, if (chunk->tsn_gap_acked) { list_move_tail(&chunk->transmitted_list, &transport->transmitted); + chunk->transport = transport; continue; } diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index 3089d5e57758..6d738f95aff1 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -1821,9 +1821,9 @@ struct sctp_association *sctp_unpack_cookie( goto fail; } - /* Check to see if the cookie is stale. If there is already - * an association, there is no need to check cookie's expiration - * for init collision case of lost COOKIE ACK. + /* Check to see if the cookie is stale. RFC 9260 Section 5.2.4 + * exempts an expired cookie only when both Verification Tags match + * the current association. * If skb has been timestamped, then use the stamp, otherwise * use current time. This introduces a small possibility that * a cookie may be considered expired, but this would only slow @@ -1834,7 +1834,10 @@ struct sctp_association *sctp_unpack_cookie( else kt = ktime_get_real(); - if (!asoc && ktime_before(bear_cookie->expiration, kt)) { + if ((!asoc || + asoc->c.my_vtag != bear_cookie->my_vtag || + asoc->c.peer_vtag != bear_cookie->peer_vtag) && + ktime_before(bear_cookie->expiration, kt)) { suseconds_t usecs = ktime_to_us(ktime_sub(kt, bear_cookie->expiration)); __be32 n = htonl(usecs); @@ -2187,7 +2190,13 @@ static enum sctp_ierror sctp_verify_param(struct net *net, case SCTP_PARAM_HEARTBEAT_INFO: case SCTP_PARAM_UNRECOGNIZED_PARAMETERS: case SCTP_PARAM_ECN_CAPABLE: + break; case SCTP_PARAM_ADAPTATION_LAYER_IND: + if (ntohs(param.p->length) != sizeof(*param.aind)) { + sctp_process_inv_paramlength(asoc, param.p, + chunk, err_chunk); + retval = SCTP_IERROR_ABORT; + } break; case SCTP_PARAM_SUPPORTED_EXT: @@ -3179,6 +3188,12 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc, if (!peer) return SCTP_ERROR_DNS_FAILED; + /* Don't free asconf->transport; a later wildcard DEL-IP + * parameter reuses it. + */ + if (peer == asconf->transport) + return SCTP_ERROR_REQ_REFUSED; + sctp_assoc_rm_peer(asoc, peer); break; case SCTP_PARAM_SET_PRIMARY: @@ -3347,12 +3362,11 @@ struct sctp_chunk *sctp_process_asconf(struct sctp_association *asoc, goto done; } done: - asoc->peer.addip_serial++; - /* If we are sending a new ASCONF_ACK hold a reference to it in assoc * after freeing the reference to old asconf ack if any. */ if (asconf_ack) { + asoc->peer.addip_serial++; sctp_chunk_hold(asconf_ack); list_add_tail(&asconf_ack->transmitted_list, &asoc->asconf_ack_list); diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 572055ee129f..85e76fa9ee50 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -639,7 +639,7 @@ static bool sctp_auth_chunk_verify(struct net *net, struct sctp_chunk *chunk, struct sctp_chunk auth; if (!chunk->auth_chunk) - return true; + return !sctp_auth_recv_cid(chunk->chunk_hdr->type, asoc); /* SCTP-AUTH: auth_chunk pointer is only set when the cookie-echo * is supposed to be authenticated and we have to do delayed @@ -6098,8 +6098,12 @@ enum sctp_disposition sctp_sf_t4_timer_expire( struct sctp_cmd_seq *commands) { struct sctp_chunk *chunk = asoc->addip_last_asconf; - struct sctp_transport *transport = chunk->transport; + struct sctp_transport *transport; + + if (!chunk) + return SCTP_DISPOSITION_CONSUME; + transport = chunk->transport; SCTP_INC_STATS(net, SCTP_MIB_T4_RTO_EXPIREDS); /* ADDIP 4.1 B1) Increment the error counters and perform path failure diff --git a/net/sctp/stream.c b/net/sctp/stream.c index d38e5431f359..34754ba23198 100644 --- a/net/sctp/stream.c +++ b/net/sctp/stream.c @@ -308,7 +308,8 @@ int sctp_send_reset_streams(struct sctp_association *asoc, goto out; param_len += str_nums * sizeof(__u16) + - sizeof(struct sctp_strreset_inreq); + (out ? sizeof(struct sctp_strreset_inreq) + : sizeof(struct sctp_strreset_outreq)); } if (param_len > SCTP_MAX_CHUNK_LEN - @@ -639,6 +640,9 @@ struct sctp_chunk *sctp_process_strreset_inreq( nums = (ntohs(param.p->length) - sizeof(*inreq)) / sizeof(__u16); str_p = inreq->list_of_streams; + if (nums * sizeof(__u16) + sizeof(struct sctp_strreset_outreq) > + SCTP_MAX_CHUNK_LEN - sizeof(struct sctp_reconf_chunk)) + goto out; for (i = 0; i < nums; i++) { if (ntohs(str_p[i]) >= stream->outcnt) { result = SCTP_STRRESET_ERR_WRONG_SSN; diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 6b60a5dd240d..7bbb59e170a6 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1574,11 +1574,12 @@ static void smc_listen_out(struct smc_sock *new_smc) atomic_dec(&lsmc->queued_smc_hs); release_sock(newsmcsk); /* lock in smc_listen_work() */ + lock_sock_nested(&lsmc->sk, SINGLE_DEPTH_NESTING); if (lsmc->sk.sk_state == SMC_LISTEN) { - lock_sock_nested(&lsmc->sk, SINGLE_DEPTH_NESTING); smc_accept_enqueue(&lsmc->sk, newsmcsk); release_sock(&lsmc->sk); } else { /* no longer listening */ + release_sock(&lsmc->sk); smc_close_non_accepted(newsmcsk); } diff --git a/net/smc/smc_core.c b/net/smc/smc_core.c index 0b32612b86aa..37614dcf1919 100644 --- a/net/smc/smc_core.c +++ b/net/smc/smc_core.c @@ -1304,10 +1304,10 @@ static void __smc_lgr_terminate(struct smc_link_group *lgr, bool soft) read_lock_bh(&lgr->conns_lock); node = rb_first(&lgr->conns_all); while (node) { - read_unlock_bh(&lgr->conns_lock); conn = rb_entry(node, struct smc_connection, alert_node); smc = container_of(conn, struct smc_sock, conn); sock_hold(&smc->sk); /* sock_put below */ + read_unlock_bh(&lgr->conns_lock); lock_sock(&smc->sk); smc_conn_kill(conn, soft); release_sock(&smc->sk); diff --git a/net/smc/smc_llc.c b/net/smc/smc_llc.c index d5ee961ca72d..572d02bfd3ed 100644 --- a/net/smc/smc_llc.c +++ b/net/smc/smc_llc.c @@ -1582,7 +1582,8 @@ static void smc_llc_event_handler(struct smc_llc_qentry *qentry) return; case SMC_LLC_CONFIRM_LINK: case SMC_LLC_ADD_LINK_CONT: - if (lgr->llc_flow_lcl.type != SMC_LLC_FLOW_NONE) { + if (lgr->llc_flow_lcl.type != SMC_LLC_FLOW_NONE && + !lgr->llc_flow_lcl.qentry) { /* a flow is waiting for this message */ smc_llc_flow_qentry_set(&lgr->llc_flow_lcl, qentry); wake_up(&lgr->llc_msg_waiter); diff --git a/net/tipc/core.c b/net/tipc/core.c index 434e70eabe08..1ddecea1df6e 100644 --- a/net/tipc/core.c +++ b/net/tipc/core.c @@ -218,6 +218,11 @@ static void __exit tipc_exit(void) unregister_pernet_device(&tipc_net_ops); tipc_unregister_sysctl(); + /* TODO: Wait for all timers that called call_rcu() to finish before + * calling rcu_barrier(). + */ + rcu_barrier(); + pr_info("Deactivated\n"); } diff --git a/net/tipc/discover.c b/net/tipc/discover.c index e8dcdf267c0c..835ff27f8ea8 100644 --- a/net/tipc/discover.c +++ b/net/tipc/discover.c @@ -58,6 +58,7 @@ * @skb: request message to be (repeatedly) sent * @timer: timer governing period between requests * @timer_intv: current interval between requests (in ms) + * @rcu: RCU head for deferred freeing */ struct tipc_discoverer { u32 bearer_id; @@ -69,6 +70,7 @@ struct tipc_discoverer { struct sk_buff *skb; struct timer_list timer; unsigned long timer_intv; + struct rcu_head rcu; }; /** @@ -382,6 +384,15 @@ int tipc_disc_create(struct net *net, struct tipc_bearer *b, return 0; } +static void tipc_disc_free_rcu(struct rcu_head *rp) +{ + struct tipc_discoverer *d = container_of(rp, struct tipc_discoverer, + rcu); + + kfree_skb(d->skb); + kfree(d); +} + /** * tipc_disc_delete - destroy object sending periodic link setup requests * @d: ptr to link dest structure @@ -389,8 +400,7 @@ int tipc_disc_create(struct net *net, struct tipc_bearer *b, void tipc_disc_delete(struct tipc_discoverer *d) { del_timer_sync(&d->timer); - kfree_skb(d->skb); - kfree(d); + call_rcu(&d->rcu, tipc_disc_free_rcu); } /** diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c index 35e167de0fcf..bebeca619cb3 100644 --- a/net/tipc/netlink.c +++ b/net/tipc/netlink.c @@ -113,12 +113,16 @@ const struct nla_policy tipc_nl_node_policy[TIPC_NLA_NODE_MAX + 1] = { }; /* Properties valid for media, bearer and link */ +static struct netlink_range_validation tipc_nl_mtu_range = { + .max = U16_MAX, +}; + const struct nla_policy tipc_nl_prop_policy[TIPC_NLA_PROP_MAX + 1] = { [TIPC_NLA_PROP_UNSPEC] = { .type = NLA_UNSPEC }, [TIPC_NLA_PROP_PRIO] = { .type = NLA_U32 }, [TIPC_NLA_PROP_TOL] = { .type = NLA_U32 }, [TIPC_NLA_PROP_WIN] = { .type = NLA_U32 }, - [TIPC_NLA_PROP_MTU] = { .type = NLA_U32 }, + [TIPC_NLA_PROP_MTU] = NLA_POLICY_FULL_RANGE(NLA_U32, &tipc_nl_mtu_range), [TIPC_NLA_PROP_BROADCAST] = { .type = NLA_U32 }, [TIPC_NLA_PROP_BROADCAST_RATIO] = { .type = NLA_U32 } }; diff --git a/net/tipc/netlink_compat.c b/net/tipc/netlink_compat.c index 116a97e30144..a8aef355bedc 100644 --- a/net/tipc/netlink_compat.c +++ b/net/tipc/netlink_compat.c @@ -226,6 +226,10 @@ static int __tipc_nl_compat_dumpit(struct tipc_nl_compat_cmd_dump *cmd, int rem; len = (*cmd->dumpit)(buf, &cb); + if (len < 0) { + err = len; + goto err_out; + } nlmsg_for_each_msg(nlmsg, nlmsg_hdr(buf), len, rem) { err = nlmsg_parse_deprecated(nlmsg, GENL_HDRLEN, diff --git a/net/tipc/node.c b/net/tipc/node.c index d2b2adec808b..256904240987 100644 --- a/net/tipc/node.c +++ b/net/tipc/node.c @@ -1063,18 +1063,23 @@ static void __tipc_node_link_down(struct tipc_node *n, int *bearer_id, static void tipc_node_link_down(struct tipc_node *n, int bearer_id, bool delete) { - struct tipc_link_entry *le = &n->links[bearer_id]; struct tipc_media_addr *maddr = NULL; - struct tipc_link *l = le->link; int old_bearer_id = bearer_id; + struct tipc_link_entry *le; struct sk_buff_head xmitq; - - if (!l) - return; + struct tipc_link *l; __skb_queue_head_init(&xmitq); + /* Synchronize the link lookup with bearer teardown. */ tipc_node_write_lock(n); + le = &n->links[bearer_id]; + l = le->link; + if (!l) { + tipc_node_write_unlock_fast(n); + return; + } + if (!tipc_link_is_establishing(l)) { __tipc_node_link_down(n, &bearer_id, &xmitq, &maddr); } else { diff --git a/net/tipc/socket.c b/net/tipc/socket.c index d7110b2738a5..3cf9a81d2586 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -503,6 +503,7 @@ static int tipc_sk_create(struct net *net, struct socket *sock, tipc_set_sk_state(sk, TIPC_OPEN); if (tipc_sk_insert(tsk)) { sk_free(sk); + sock->sk = NULL; pr_warn("Socket create failed; port number exhausted\n"); return -EINVAL; } @@ -796,7 +797,7 @@ static __poll_t tipc_poll(struct file *file, struct socket *sock, __poll_t revents = 0; sock_poll_wait(file, sock, wait); - trace_tipc_sk_poll(sk, NULL, TIPC_DUMP_ALL, " "); + trace_tipc_sk_poll(sk, NULL, TIPC_DUMP_NONE, " "); if (sk->sk_shutdown & RCV_SHUTDOWN) revents |= EPOLLRDHUP | EPOLLIN | EPOLLRDNORM; diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c index 389597bd7ae5..012ff6a49669 100644 --- a/net/tls/tls_sw.c +++ b/net/tls/tls_sw.c @@ -278,9 +278,15 @@ static int tls_do_decryption(struct sock *sk, BUILD_BUG_ON_INVALID(atomic_read(&ctx->decrypt_pending) < 1); atomic_inc(&ctx->decrypt_pending); } else { + DECLARE_CRYPTO_WAIT(wait); + aead_request_set_callback(aead_req, CRYPTO_TFM_REQ_MAY_BACKLOG, - crypto_req_done, &ctx->async_wait); + crypto_req_done, &wait); + ret = crypto_aead_decrypt(aead_req); + if (ret == -EINPROGRESS || ret == -EBUSY) + ret = crypto_wait_req(ret, &wait); + return ret; } ret = crypto_aead_decrypt(aead_req); @@ -289,10 +295,7 @@ static int tls_do_decryption(struct sock *sk, ret = ret ?: -EINPROGRESS; } if (ret == -EINPROGRESS) { - if (darg->async) - return 0; - - ret = crypto_wait_req(ret, &ctx->async_wait); + return 0; } else if (darg->async) { atomic_dec(&ctx->decrypt_pending); } @@ -452,7 +455,7 @@ int tls_tx_records(struct sock *sk, int flags) } tx_err: - if (rc < 0 && rc != -EAGAIN) + if (rc < 0 && rc != -EAGAIN && rc != -EINTR && rc != -ERESTARTSYS) tls_err_abort(sk, rc); return rc; diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c index 0b41028ed544..cf6fcc760406 100644 --- a/net/vmw_vsock/virtio_transport.c +++ b/net/vmw_vsock/virtio_transport.c @@ -292,12 +292,13 @@ static void virtio_transport_tx_work(struct work_struct *work) struct virtqueue *vq; bool added = false; - vq = vsock->vqs[VSOCK_VQ_TX]; mutex_lock(&vsock->tx_lock); if (!vsock->tx_run) goto out; + vq = vsock->vqs[VSOCK_VQ_TX]; + do { struct virtio_vsock_pkt *pkt; unsigned int len; @@ -397,13 +398,13 @@ static void virtio_transport_event_work(struct work_struct *work) container_of(work, struct virtio_vsock, event_work); struct virtqueue *vq; - vq = vsock->vqs[VSOCK_VQ_EVENT]; - mutex_lock(&vsock->event_lock); if (!vsock->event_run) goto out; + vq = vsock->vqs[VSOCK_VQ_EVENT]; + do { struct virtio_vsock_event *event; unsigned int len; @@ -519,12 +520,12 @@ static void virtio_transport_rx_work(struct work_struct *work) container_of(work, struct virtio_vsock, rx_work); struct virtqueue *vq; - vq = vsock->vqs[VSOCK_VQ_RX]; - mutex_lock(&vsock->rx_lock); if (!vsock->rx_run) - goto out; + goto out_nofill; + + vq = vsock->vqs[VSOCK_VQ_RX]; do { virtqueue_disable_cb(vq); @@ -563,6 +564,7 @@ static void virtio_transport_rx_work(struct work_struct *work) out: if (vsock->rx_buf_nr < vsock->rx_buf_max_nr / 2) virtio_vsock_rx_fill(vsock); +out_nofill: mutex_unlock(&vsock->rx_lock); } diff --git a/net/wireless/core.c b/net/wireless/core.c index d63480873d06..3ab7a21a6743 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -1104,6 +1104,7 @@ void wiphy_unregister(struct wiphy *wiphy) /* this has nothing to do now but make sure it's gone */ cancel_work_sync(&rdev->wiphy_work); + cancel_work_sync(&rdev->sched_scan_res_wk); cancel_work_sync(&rdev->rfkill_block); cancel_work_sync(&rdev->conn_work); flush_work(&rdev->event_work); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index a7f91b584ee0..2c74da398cf4 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -300,7 +300,9 @@ nl80211_ftm_responder_policy[NL80211_FTM_RESP_ATTR_MAX + 1] = { static const struct nla_policy nl80211_pmsr_ftm_req_attr_policy[NL80211_PMSR_FTM_REQ_ATTR_MAX + 1] = { [NL80211_PMSR_FTM_REQ_ATTR_ASAP] = { .type = NLA_FLAG }, - [NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE] = { .type = NLA_U32 }, + [NL80211_PMSR_FTM_REQ_ATTR_PREAMBLE] = + NLA_POLICY_RANGE(NLA_U32, NL80211_PREAMBLE_LEGACY, + NL80211_PREAMBLE_HE), [NL80211_PMSR_FTM_REQ_ATTR_NUM_BURSTS_EXP] = NLA_POLICY_MAX(NLA_U8, 15), [NL80211_PMSR_FTM_REQ_ATTR_BURST_PERIOD] = { .type = NLA_U16 }, diff --git a/net/wireless/pmsr.c b/net/wireless/pmsr.c index 65fa39275f73..9cb8bfb9ba96 100644 --- a/net/wireless/pmsr.c +++ b/net/wireless/pmsr.c @@ -116,6 +116,7 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev, NL_SET_ERR_MSG_ATTR(info->extack, tb[NL80211_PMSR_FTM_REQ_ATTR_REQUEST_LCI], "FTM: LCI request not supported"); + return -EOPNOTSUPP; } out->ftm.request_civicloc = @@ -124,6 +125,7 @@ static int pmsr_parse_ftm(struct cfg80211_registered_device *rdev, NL_SET_ERR_MSG_ATTR(info->extack, tb[NL80211_PMSR_FTM_REQ_ATTR_REQUEST_CIVICLOC], "FTM: civic location request not supported"); + return -EOPNOTSUPP; } out->ftm.trigger_based = @@ -190,6 +192,7 @@ static int pmsr_parse_peer(struct cfg80211_registered_device *rdev, { struct nlattr *tb[NL80211_PMSR_PEER_ATTR_MAX + 1]; struct nlattr *req[NL80211_PMSR_REQ_ATTR_MAX + 1]; + bool have_measurement_type = false; struct nlattr *treq; int err, rem; @@ -242,6 +245,14 @@ static int pmsr_parse_peer(struct cfg80211_registered_device *rdev, } nla_for_each_nested(treq, req[NL80211_PMSR_REQ_ATTR_DATA], rem) { + if (have_measurement_type) { + NL_SET_ERR_MSG_ATTR(info->extack, treq, + "multiple measurement types in request data"); + return -EINVAL; + } + + have_measurement_type = true; + switch (nla_type(treq)) { case NL80211_PMSR_TYPE_FTM: err = pmsr_parse_ftm(rdev, treq, out, info); @@ -251,10 +262,16 @@ static int pmsr_parse_peer(struct cfg80211_registered_device *rdev, "unsupported measurement type"); err = -EINVAL; } + if (err) + return err; } - if (err) - return err; + if (!have_measurement_type) { + NL_SET_ERR_MSG_ATTR(info->extack, + req[NL80211_PMSR_REQ_ATTR_DATA], + "missing measurement type in request data"); + return -EINVAL; + } return 0; } diff --git a/net/wireless/scan.c b/net/wireless/scan.c index 1bc2aba69bd7..df9d0431864d 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -240,7 +240,7 @@ bool cfg80211_is_element_inherited(const struct element *elem, return true; if (elem->id == WLAN_EID_EXTENSION) { - if (!ext_id_len) + if (!ext_id_len || !elem->datalen) return true; loop_len = ext_id_len; list = &non_inherit_elem->data[3 + id_len]; diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index 1e5152fdee58..cdc5b4bf5b43 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -1769,15 +1769,19 @@ void x25_kill_by_neigh(struct x25_neigh *nb) { struct sock *s; +again: write_lock_bh(&x25_list_lock); sk_for_each(s, &x25_list) { if (x25_sk(s)->neighbour == nb) { + sock_hold(s); write_unlock_bh(&x25_list_lock); lock_sock(s); - x25_disconnect(s, ENETUNREACH, 0, 0); + if (x25_sk(s)->neighbour == nb) + x25_disconnect(s, ENETUNREACH, 0, 0); release_sock(s); - write_lock_bh(&x25_list_lock); + sock_put(s); + goto again; } } write_unlock_bh(&x25_list_lock); diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c index cec66c74e1d2..536b945e1eeb 100644 --- a/net/xfrm/xfrm_policy.c +++ b/net/xfrm/xfrm_policy.c @@ -1292,8 +1292,8 @@ static void xfrm_hash_rebuild(struct work_struct *work) } } - if (policy->selector.prefixlen_d < dbits || - policy->selector.prefixlen_s < sbits) + if (policy->selector.prefixlen_d >= dbits && + policy->selector.prefixlen_s >= sbits) continue; bin = xfrm_policy_inexact_alloc_bin(policy, dir); diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c index 08b49bd1e8ca..9c972165d2b3 100644 --- a/security/integrity/ima/ima_appraise.c +++ b/security/integrity/ima/ima_appraise.c @@ -254,8 +254,13 @@ static int xattr_verify(enum ima_hooks func, struct integrity_iint_cache *iint, } else { set_bit(IMA_DIGSIG, &iint->atomic_flags); } - if (xattr_len - sizeof(xattr_value->type) - hash_start >= - iint->ima_hash->length) + /* + * Use addition, not subtraction: sizeof() forces unsigned + * math and a short xattr_len would wrap around, bypassing + * this bounds check. + */ + if (xattr_len >= (int)sizeof(xattr_value->type) + hash_start + + (int)iint->ima_hash->length) /* * xattr length may be longer. md5 hash in previous * version occupied 20 bytes in xattr, instead of 16 diff --git a/security/keys/keyring.c b/security/keys/keyring.c index 08aaa9429ab3..fc26d339a962 100644 --- a/security/keys/keyring.c +++ b/security/keys/keyring.c @@ -271,6 +271,7 @@ static unsigned long keyring_get_key_chunk(const void *data, int level) unsigned long chunk = 0; const u8 *d; int desc_len = index_key->desc_len, n = sizeof(chunk); + unsigned int offset; level /= ASSOC_ARRAY_KEY_CHUNK_SIZE; switch (level) { @@ -284,17 +285,18 @@ static unsigned long keyring_get_key_chunk(const void *data, int level) return (unsigned long)index_key->domain_tag; default: level -= 4; - if (desc_len <= sizeof(index_key->desc)) + offset = sizeof(index_key->desc) + level * sizeof(long); + if (desc_len <= offset) return 0; - d = index_key->description + sizeof(index_key->desc); - d += level * sizeof(long); - desc_len -= sizeof(index_key->desc); + d = index_key->description + offset; + desc_len -= offset; if (desc_len > n) desc_len = n; + d += desc_len; do { chunk <<= 8; - chunk |= *d++; + chunk |= *--d; } while (--desc_len > 0); return chunk; } @@ -375,7 +377,7 @@ static int keyring_diff_objects(const void *object, const void *data) return -1; differ_plus_i: - level += i; + level += i - (int)sizeof(a->desc); differ: i = level * 8 + __ffs(seg_a ^ seg_b); return i; diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 297d15383bde..94e3e3ba6a33 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -2338,6 +2338,7 @@ static void relink_to_local(struct snd_pcm_substream *substream) static int snd_pcm_unlink(struct snd_pcm_substream *substream) { + struct snd_pcm_substream *s; struct snd_pcm_group *group; bool nonatomic = substream->pcm->nonatomic; bool do_free = false; @@ -2353,6 +2354,12 @@ static int snd_pcm_unlink(struct snd_pcm_substream *substream) group = substream->group; snd_pcm_group_lock_irq(group, nonatomic); + /* release drain waiters before changing membership, else snd_pcm_drain() + * leaves its on-stack wait entry queued on a member's sleep list + */ + snd_pcm_group_for_each_entry(s, substream) + wake_up(&s->runtime->sleep); + relink_to_local(substream); refcount_dec(&group->refs); diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c index bd9b6148dd6f..45ef869ae9e5 100644 --- a/sound/pci/lx6464es/lx6464es.c +++ b/sound/pci/lx6464es/lx6464es.c @@ -410,11 +410,8 @@ static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream) int err; - const u32 channels = substream->runtime->channels; - const u32 bytes_per_frame = channels * 3; - const u32 period_size = substream->runtime->period_size; const u32 periods = substream->runtime->periods; - const u32 period_bytes = period_size * bytes_per_frame; + const u32 period_bytes = snd_pcm_lib_period_bytes(substream); dma_addr_t buf = substream->dma_buffer.addr; int i; diff --git a/sound/pci/lx6464es/lx_core.c b/sound/pci/lx6464es/lx_core.c index c3f2717aebf2..129199e3ac06 100644 --- a/sound/pci/lx6464es/lx_core.c +++ b/sound/pci/lx6464es/lx_core.c @@ -1015,10 +1015,7 @@ static int lx_interrupt_request_new_buffer(struct lx6464es *chip, const unsigned int is_capture = lx_stream->is_capture; int err; - const u32 channels = substream->runtime->channels; - const u32 bytes_per_frame = channels * 3; - const u32 period_size = substream->runtime->period_size; - const u32 period_bytes = period_size * bytes_per_frame; + const u32 period_bytes = snd_pcm_lib_period_bytes(substream); const u32 pos = lx_stream->frame_pos; const u32 next_pos = ((pos+1) == substream->runtime->periods) ? 0 : pos + 1; diff --git a/sound/soc/codecs/bt-sco.c b/sound/soc/codecs/bt-sco.c index 4d286844e3c8..7c42fcdee27b 100644 --- a/sound/soc/codecs/bt-sco.c +++ b/sound/soc/codecs/bt-sco.c @@ -13,11 +13,21 @@ static const struct snd_soc_dapm_widget bt_sco_widgets[] = { SND_SOC_DAPM_INPUT("RX"), SND_SOC_DAPM_OUTPUT("TX"), + SND_SOC_DAPM_AIF_IN("BT_SCO_RX", "Playback", 0, + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("BT_SCO_TX", "Capture", 0, + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_IN("BT_SCO_RX_WB", "WB Playback", 0, + SND_SOC_NOPM, 0, 0), + SND_SOC_DAPM_AIF_OUT("BT_SCO_TX_WB", "WB Capture", 0, + SND_SOC_NOPM, 0, 0), }; static const struct snd_soc_dapm_route bt_sco_routes[] = { - { "Capture", NULL, "RX" }, - { "TX", NULL, "Playback" }, + { "BT_SCO_TX", NULL, "RX" }, + { "TX", NULL, "BT_SCO_RX" }, + { "BT_SCO_TX_WB", NULL, "RX" }, + { "TX", NULL, "BT_SCO_RX_WB" }, }; static struct snd_soc_dai_driver bt_sco_dai[] = { @@ -41,14 +51,14 @@ static struct snd_soc_dai_driver bt_sco_dai[] = { { .name = "bt-sco-pcm-wb", .playback = { - .stream_name = "Playback", + .stream_name = "WB Playback", .channels_min = 1, .channels_max = 1, .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000, .formats = SNDRV_PCM_FMTBIT_S16_LE, }, .capture = { - .stream_name = "Capture", + .stream_name = "WB Capture", .channels_min = 1, .channels_max = 1, .rates = SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000, diff --git a/sound/soc/codecs/max98090.c b/sound/soc/codecs/max98090.c index 3cf41870978d..4f173f86e157 100644 --- a/sound/soc/codecs/max98090.c +++ b/sound/soc/codecs/max98090.c @@ -2391,8 +2391,9 @@ static int max98090_probe(struct snd_soc_component *component) dev_dbg(component->dev, "max98090_probe\n"); max98090->mclk = devm_clk_get(component->dev, "mclk"); - if (PTR_ERR(max98090->mclk) == -EPROBE_DEFER) - return -EPROBE_DEFER; + if (IS_ERR(max98090->mclk)) + if (PTR_ERR(max98090->mclk) == -EPROBE_DEFER) + return -EPROBE_DEFER; max98090->component = component; diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c index 736cd70be725..909f2e2f1891 100644 --- a/sound/soc/codecs/max98095.c +++ b/sound/soc/codecs/max98095.c @@ -1990,8 +1990,9 @@ static int max98095_probe(struct snd_soc_component *component) int ret = 0; max98095->mclk = devm_clk_get(component->dev, "mclk"); - if (PTR_ERR(max98095->mclk) == -EPROBE_DEFER) - return -EPROBE_DEFER; + if (IS_ERR(max98095->mclk)) + if (PTR_ERR(max98095->mclk) == -EPROBE_DEFER) + return -EPROBE_DEFER; /* reset the codec, the DSP core, and disable all interrupts */ max98095_reset(component); diff --git a/sound/soc/codecs/tas2562.c b/sound/soc/codecs/tas2562.c index 10302552195e..a4e1c1f0a739 100644 --- a/sound/soc/codecs/tas2562.c +++ b/sound/soc/codecs/tas2562.c @@ -33,15 +33,16 @@ static const unsigned int float_vol_db_lookup[] = { 0x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151, 0x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b, -0x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a, +0x000084a3, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a, 0x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f, 0x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7, 0x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d, 0x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a, 0x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27, 0x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68, -0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362, -0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000 +0x06666666, 0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, +0x143d1362, 0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, +0x40000000 }; struct tas2562_data { @@ -507,20 +508,27 @@ static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol, u32 reg_val; reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2]; - ret = snd_soc_component_write(component, TAS2562_DVC_CFG4, - (reg_val & 0xff)); - if (ret) - return ret; - ret = snd_soc_component_write(component, TAS2562_DVC_CFG3, - ((reg_val >> 8) & 0xff)); + /* + * The device applies the 32-bit coefficient to the playback path on + * the write to DVC_CFG4 (the LSB, book 0 page 2 reg 0x0F), so the + * bytes must be written MSB first and DVC_CFG4 last. Writing CFG4 + * first latches a mix of the previous coefficient's upper bytes and + * the new LSB instead of the requested value. + */ + ret = snd_soc_component_write(component, TAS2562_DVC_CFG1, + ((reg_val >> 24) & 0xff)); if (ret) return ret; ret = snd_soc_component_write(component, TAS2562_DVC_CFG2, ((reg_val >> 16) & 0xff)); if (ret) return ret; - ret = snd_soc_component_write(component, TAS2562_DVC_CFG1, - ((reg_val >> 24) & 0xff)); + ret = snd_soc_component_write(component, TAS2562_DVC_CFG3, + ((reg_val >> 8) & 0xff)); + if (ret) + return ret; + ret = snd_soc_component_write(component, TAS2562_DVC_CFG4, + (reg_val & 0xff)); if (ret) return ret; @@ -719,11 +727,12 @@ static int tas2562_parse_dt(struct tas2562_data *tas2562) if (tas2562->sdz_gpio == NULL) { tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down", GPIOD_OUT_HIGH); - if (IS_ERR(tas2562->sdz_gpio)) + if (IS_ERR(tas2562->sdz_gpio)) { if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) return -EPROBE_DEFER; - tas2562->sdz_gpio = NULL; + tas2562->sdz_gpio = NULL; + } } if (tas2562->model_id == TAS2110) diff --git a/sound/soc/meson/aiu-fifo-spdif.c b/sound/soc/meson/aiu-fifo-spdif.c index 2fb30f89bf7a..515310e8eae7 100644 --- a/sound/soc/meson/aiu-fifo-spdif.c +++ b/sound/soc/meson/aiu-fifo-spdif.c @@ -24,6 +24,7 @@ #define AIU_MEM_IEC958_CONTROL_MODE_16BIT BIT(7) #define AIU_MEM_IEC958_CONTROL_MODE_LINEAR BIT(8) #define AIU_MEM_IEC958_BUF_CNTL_INIT BIT(0) +#define AIU_RST_SOFT_958_FAST BIT(2) #define AIU_FIFO_SPDIF_BLOCK 8 @@ -68,11 +69,15 @@ static int fifo_spdif_trigger(struct snd_pcm_substream *substream, int cmd, case SNDRV_PCM_TRIGGER_START: case SNDRV_PCM_TRIGGER_RESUME: case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + snd_soc_component_write(component, AIU_RST_SOFT, + AIU_RST_SOFT_958_FAST); fifo_spdif_dcu_enable(component, true); break; case SNDRV_PCM_TRIGGER_SUSPEND: case SNDRV_PCM_TRIGGER_PAUSE_PUSH: case SNDRV_PCM_TRIGGER_STOP: + snd_soc_component_write(component, AIU_RST_SOFT, + AIU_RST_SOFT_958_FAST); fifo_spdif_dcu_enable(component, false); break; default: diff --git a/sound/usb/6fire/chip.c b/sound/usb/6fire/chip.c index 835295e0807d..e5916c6b75ae 100644 --- a/sound/usb/6fire/chip.c +++ b/sound/usb/6fire/chip.c @@ -158,6 +158,10 @@ static int usb6fire_chip_probe(struct usb_interface *intf, return 0; destroy_chip: + chip->shutdown = true; + if (card) + snd_card_disconnect(card); + usb6fire_chip_abort(chip); snd_card_free(card); return ret; } diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index b9fa755c1ac1..e995b7ab88b1 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -387,13 +387,15 @@ static int prepare_inbound_urb(struct snd_usb_endpoint *ep, case SND_USB_ENDPOINT_TYPE_DATA: offs = 0; for (i = 0; i < urb_ctx->packets; i++) { + if (offs + ep->curpacksize > urb_ctx->buffer_size) + break; urb->iso_frame_desc[i].offset = offs; urb->iso_frame_desc[i].length = ep->curpacksize; offs += ep->curpacksize; } urb->transfer_buffer_length = offs; - urb->number_of_packets = urb_ctx->packets; + urb->number_of_packets = i; break; case SND_USB_ENDPOINT_TYPE_SYNC: @@ -1162,10 +1164,12 @@ static int data_ep_set_params(struct snd_usb_endpoint *ep) << (16 - ep->datainterval); } - if (ep->fill_max) + if (ep->fill_max) { ep->curpacksize = ep->maxpacksize; - else + maxsize = ep->curpacksize; + } else { ep->curpacksize = maxsize; + } if (snd_usb_get_speed(chip->dev) != USB_SPEED_FULL) { packs_per_ms = 8 >> ep->datainterval; @@ -1249,10 +1253,10 @@ static int data_ep_set_params(struct snd_usb_endpoint *ep) u->index = i; u->ep = ep; u->packets = urb_packs; - u->buffer_size = maxsize * u->packets; if (fmt->fmt_type == UAC_FORMAT_TYPE_II) u->packets++; /* for transfer delimiter */ + u->buffer_size = maxsize * u->packets; u->urb = usb_alloc_urb(u->packets, GFP_KERNEL); if (!u->urb) goto out_of_memory; @@ -1819,11 +1823,13 @@ static void snd_usb_handle_sync_urb(struct snd_usb_endpoint *ep, out_packet->packets = in_ctx->packets; for (i = 0; i < in_ctx->packets; i++) { - if (urb->iso_frame_desc[i].status == 0) - out_packet->packet_size[i] = + if (urb->iso_frame_desc[i].status == 0) { + unsigned int frames = urb->iso_frame_desc[i].actual_length / sender->stride; - else + out_packet->packet_size[i] = min(frames, ep->maxframesize); + } else { out_packet->packet_size[i] = 0; + } } spin_unlock_irqrestore(&ep->lock, flags); diff --git a/sound/usb/midi.c b/sound/usb/midi.c index f583b6623ded..f48e1e7e1c80 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -800,6 +800,8 @@ static void snd_usbmidi_akai_output(struct snd_usb_midi_out_endpoint *ep, msg = urb->transfer_buffer + urb->transfer_buffer_length; buf_end = ep->max_transfer - MAX_AKAI_SYSEX_LEN - 1; + if (buf_end <= 0) + return; /* only try adding more data when there's space for at least 1 SysEx */ while (urb->transfer_buffer_length < buf_end) { diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c index acfad8763627..9cb0e24004db 100644 --- a/sound/usb/quirks.c +++ b/sound/usb/quirks.c @@ -1947,6 +1947,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = { QUIRK_FLAG_DSD_RAW), DEVICE_FLG(0x2708, 0x0002, /* Audient iD14 */ QUIRK_FLAG_IGNORE_CTL_ERROR), + DEVICE_FLG(0x2772, 0x0502, /* Musical Fidelity M6s DAC */ + 0), /* for avoiding QUIRK_FLAG_DSD_RAW with vendor match */ DEVICE_FLG(0x2912, 0x30c8, /* Audioengine D1 */ QUIRK_FLAG_GET_SAMPLE_RATE), DEVICE_FLG(0x2b53, 0x0023, /* Fiero SC-01 (firmware v1.0.0 @ 48 kHz) */ diff --git a/sound/usb/usx2y/usX2Yhwdep.c b/sound/usb/usx2y/usX2Yhwdep.c index c29da0341bc5..c0293af448fe 100644 --- a/sound/usb/usx2y/usX2Yhwdep.c +++ b/sound/usb/usx2y/usX2Yhwdep.c @@ -29,6 +29,8 @@ static vm_fault_t snd_us428ctls_vm_fault(struct vm_fault *vmf) vmf->pgoff); offset = vmf->pgoff << PAGE_SHIFT; + if (offset >= US428_SHAREDMEM_PAGES) + return VM_FAULT_SIGBUS; vaddr = (char *)((struct usx2ydev *)vmf->vma->vm_private_data)->us428ctls_sharedmem + offset; page = virt_to_page(vaddr); get_page(page); diff --git a/sound/usb/usx2y/usx2yhwdeppcm.c b/sound/usb/usx2y/usx2yhwdeppcm.c index db83522c1b49..bcf5d2242c5f 100644 --- a/sound/usb/usx2y/usx2yhwdeppcm.c +++ b/sound/usb/usx2y/usx2yhwdeppcm.c @@ -677,6 +677,8 @@ static vm_fault_t snd_usx2y_hwdep_pcm_vm_fault(struct vm_fault *vmf) void *vaddr; offset = vmf->pgoff << PAGE_SHIFT; + if (offset >= USX2Y_HWDEP_PCM_PAGES) + return VM_FAULT_SIGBUS; vaddr = (char *)((struct usx2ydev *)vmf->vma->vm_private_data)->hwdep_pcm_shm + offset; vmf->page = virt_to_page(vaddr); get_page(vmf->page); diff --git a/tools/testing/selftests/clone3/clone3_set_tid.c b/tools/testing/selftests/clone3/clone3_set_tid.c index 0229e9ebb995..a0cc8940e8f8 100644 --- a/tools/testing/selftests/clone3/clone3_set_tid.c +++ b/tools/testing/selftests/clone3/clone3_set_tid.c @@ -146,7 +146,7 @@ int main(int argc, char *argv[]) { FILE *f; char buf; - char *line; + char *line = NULL; int status; int ret = -1; size_t len = 0; diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc index 60c02b482be8..e2322693d0c3 100644 --- a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_eprobe.tc @@ -1,16 +1,16 @@ #!/bin/sh # SPDX-License-Identifier: GPL-2.0 # description: Generic dynamic event - add/remove eprobe events -# requires: dynamic_events events/syscalls/sys_enter_openat "e[:[/]] . []":README +# requires: dynamic_events events/syscalls/sys_enter_chdir ". []":README echo 0 > events/enable clear_dynamic_events SYSTEM="syscalls" -EVENT="sys_enter_openat" +EVENT="sys_enter_chdir" FIELD="filename" -EPROBE="eprobe_open" +EPROBE="eprobe_chdir" OPTIONS="file=+0(\$filename):ustring" echo "e:$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events @@ -18,20 +18,14 @@ grep -q "$EPROBE" dynamic_events test -d events/eprobes/$EPROBE echo 1 > events/eprobes/$EPROBE/enable -ls +cd /sys/kernel/tracing echo 0 > events/eprobes/$EPROBE/enable -content=`grep '^ *ls-' trace | grep 'file='` -nocontent=`grep '^ *ls-' trace | grep 'file=' | grep -v -e '"/' -e '"."' -e '(fault)' ` || true - +content=`grep -e 'file="/sys/kernel/tracing"\|(fault)' trace` if [ -z "$content" ]; then exit_fail fi -if [ ! -z "$nocontent" ]; then - exit_fail -fi - echo "-:$EPROBE" >> dynamic_events ! grep -q "$EPROBE" dynamic_events @@ -87,4 +81,11 @@ echo "-:eprobes/$EPROBE $SYSTEM/$EVENT $OPTIONS" >> dynamic_events ! grep -q "$EPROBE" dynamic_events ! test -d events/eprobes/$EPROBE +if grep -q "e\[:\[/]\[]]" README; then + echo "e:mygroup/ $SYSTEM/$EVENT $OPTIONS" >> dynamic_events + test -d events/mygroup + echo "-:mygroup/" >> dynamic_events + ! test -d events/mygroup +fi + clear_trace diff --git a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc index b4da41d126d5..13d43f40a6fc 100644 --- a/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc +++ b/tools/testing/selftests/ftrace/test.d/dynevent/add_remove_kprobe.tc @@ -23,4 +23,11 @@ grep -q myevent1 dynamic_events echo > dynamic_events +if grep -q "p\[:\[/]\[]]" README; then + echo "p:mygroup/ $PLACE" >> dynamic_events + test -d events/mygroup + echo "-:mygroup/" >> dynamic_events + ! test -d events/mygroup +fi + clear_trace