From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 <gregkh@linuxfoundation.org>
Subject: Re: Linux 6.6.142
Date: Mon, 1 Jun 2026 18:05:45 +0200 [thread overview]
Message-ID: <2026060145-retry-careless-7dc8@gregkh> (raw)
In-Reply-To: <2026060144-courier-unscrew-3668@gregkh>
diff --git a/Makefile b/Makefile
index b9916e8715fe..4399fc78a62d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 6
PATCHLEVEL = 6
-SUBLEVEL = 141
+SUBLEVEL = 142
EXTRAVERSION =
NAME = Pinguïn Aangedreven
diff --git a/arch/arm/mach-versatile/integrator_cp.c b/arch/arm/mach-versatile/integrator_cp.c
index 2ed4ded56b3f..03dfb5f720b7 100644
--- a/arch/arm/mach-versatile/integrator_cp.c
+++ b/arch/arm/mach-versatile/integrator_cp.c
@@ -86,14 +86,6 @@ static u64 notrace intcp_read_sched_clock(void)
return val;
}
-static void __init intcp_init_early(void)
-{
- cm_map = syscon_regmap_lookup_by_compatible("arm,core-module-integrator");
- if (IS_ERR(cm_map))
- return;
- sched_clock_register(intcp_read_sched_clock, 32, 24000000);
-}
-
static void __init intcp_init_irq_of(void)
{
cm_init();
@@ -119,6 +111,10 @@ static void __init intcp_init_of(void)
{
struct device_node *cpcon;
+ cm_map = syscon_regmap_lookup_by_compatible("arm,core-module-integrator");
+ if (!IS_ERR(cm_map))
+ sched_clock_register(intcp_read_sched_clock, 32, 24000000);
+
cpcon = of_find_matching_node(NULL, intcp_syscon_match);
if (!cpcon)
return;
@@ -138,7 +134,6 @@ static const char * intcp_dt_board_compat[] = {
DT_MACHINE_START(INTEGRATOR_CP_DT, "ARM Integrator/CP (Device Tree)")
.reserve = integrator_reserve,
.map_io = intcp_map_io,
- .init_early = intcp_init_early,
.init_irq = intcp_init_irq_of,
.init_machine = intcp_init_of,
.dt_compat = intcp_dt_board_compat,
diff --git a/arch/arm64/include/asm/insn.h b/arch/arm64/include/asm/insn.h
index 12c0278294e3..f477ff380620 100644
--- a/arch/arm64/include/asm/insn.h
+++ b/arch/arm64/include/asm/insn.h
@@ -399,7 +399,7 @@ __AARCH64_INSN_FUNCS(cbz, 0x7F000000, 0x34000000)
__AARCH64_INSN_FUNCS(cbnz, 0x7F000000, 0x35000000)
__AARCH64_INSN_FUNCS(tbz, 0x7F000000, 0x36000000)
__AARCH64_INSN_FUNCS(tbnz, 0x7F000000, 0x37000000)
-__AARCH64_INSN_FUNCS(bcond, 0xFF000010, 0x54000000)
+__AARCH64_INSN_FUNCS(bcond, 0xFF000000, 0x54000000)
__AARCH64_INSN_FUNCS(svc, 0xFFE0001F, 0xD4000001)
__AARCH64_INSN_FUNCS(hvc, 0xFFE0001F, 0xD4000002)
__AARCH64_INSN_FUNCS(smc, 0xFFE0001F, 0xD4000003)
diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c
index 608c39859f4e..c53186d84869 100644
--- a/arch/arm64/kvm/vgic/vgic-its.c
+++ b/arch/arm64/kvm/vgic/vgic-its.c
@@ -2413,6 +2413,10 @@ static int vgic_its_restore_dte(struct vgic_its *its, u32 id,
/* dte entry is valid */
offset = (entry & KVM_ITS_DTE_NEXT_MASK) >> KVM_ITS_DTE_NEXT_SHIFT;
+ /* Mimic the MAPD behaviour and reject invalid EID bits. */
+ if (num_eventid_bits > VITS_TYPER_IDBITS)
+ return -EINVAL;
+
if (!vgic_its_check_id(its, baser, id, NULL))
return -EINVAL;
diff --git a/arch/loongarch/kernel/kprobes.c b/arch/loongarch/kernel/kprobes.c
index 17b040bd6067..ea98b6a3e201 100644
--- a/arch/loongarch/kernel/kprobes.c
+++ b/arch/loongarch/kernel/kprobes.c
@@ -184,16 +184,16 @@ static bool reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
{
switch (kcb->kprobe_status) {
- case KPROBE_HIT_SS:
case KPROBE_HIT_SSDONE:
case KPROBE_HIT_ACTIVE:
kprobes_inc_nmissed_count(p);
setup_singlestep(p, regs, kcb, 1);
break;
+ case KPROBE_HIT_SS:
case KPROBE_REENTER:
pr_warn("Failed to recover from reentered kprobes.\n");
dump_kprobe(p);
- WARN_ON_ONCE(1);
+ BUG();
break;
default:
WARN_ON(1);
diff --git a/arch/loongarch/mm/init.c b/arch/loongarch/mm/init.c
index a5bf96993bb1..03f809424363 100644
--- a/arch/loongarch/mm/init.c
+++ b/arch/loongarch/mm/init.c
@@ -106,11 +106,7 @@ void arch_remove_memory(u64 start, u64 size, struct vmem_altmap *altmap)
{
unsigned long start_pfn = start >> PAGE_SHIFT;
unsigned long nr_pages = size >> PAGE_SHIFT;
- struct page *page = pfn_to_page(start_pfn);
- /* With altmap the first mapped page is offset from @start */
- if (altmap)
- page += vmem_altmap_offset(altmap);
__remove_pages(start_pfn, nr_pages, altmap);
}
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index df20cf201f74..dda35c404a67 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -436,6 +436,10 @@ DEFINE_PER_CPU(u8, irq_work_pending);
#endif /* 32 vs 64 bit */
+/*
+ * Must be called with preemption disabled since it updates
+ * per-CPU irq_work state and programs the local CPU decrementer.
+ */
void arch_irq_work_raise(void)
{
/*
@@ -449,10 +453,8 @@ void arch_irq_work_raise(void)
* which could get tangled up if we're messing with the same state
* here.
*/
- preempt_disable();
set_irq_work_pending_flag();
set_dec(1);
- preempt_enable();
}
static void set_dec_or_work(u64 val)
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index cbe209fe0df1..893c35aeb746 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -1258,6 +1258,9 @@ static inline char *debug_get_user_string(const char __user *user_buf,
{
char *buffer;
+ if (!user_len)
+ return ERR_PTR(-EINVAL);
+
buffer = kmalloc(user_len + 1, GFP_KERNEL);
if (!buffer)
return ERR_PTR(-ENOMEM);
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index 00cefbb59fa9..9d6411c65920 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -244,7 +244,7 @@ static inline unsigned long vdso_encode_cpunode(int cpu, unsigned long node)
static inline void vdso_read_cpunode(unsigned *cpu, unsigned *node)
{
- unsigned long p;
+ unsigned int p;
/*
* Load CPU and node number from the GDT. LSL is faster than RDTSCP
@@ -254,10 +254,10 @@ static inline void vdso_read_cpunode(unsigned *cpu, unsigned *node)
*
* If RDPID is available, use it.
*/
- alternative_io ("lsl %[seg],%k[p]",
- "rdpid %[p]",
+ alternative_io ("lsl %[seg],%[p]",
+ ".byte 0xf3,0x0f,0xc7,0xf8", /* RDPID %eax/rax */
X86_FEATURE_RDPID,
- [p] "=r" (p), [seg] "r" (__CPUNODE_SEG));
+ [p] "=a" (p), [seg] "r" (__CPUNODE_SEG));
if (cpu)
*cpu = (p & VDSO_CPUNODE_MASK);
diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index ec3ffb94807d..3d5236fa54dd 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -656,7 +656,7 @@ static void __init xen_e820_swap_entry_with_ram(struct e820_entry *swap_entry)
/* Fill new entry (keep size and page offset). */
entry->type = swap_entry->type;
entry->addr = entry_end - swap_size +
- swap_addr - swap_entry->addr;
+ swap_entry->addr - swap_addr;
entry->size = swap_entry->size;
/* Convert old entry to RAM, align to pages. */
diff --git a/drivers/accel/qaic/qaic_data.c b/drivers/accel/qaic/qaic_data.c
index d00068987d9b..7beab1309e36 100644
--- a/drivers/accel/qaic/qaic_data.c
+++ b/drivers/accel/qaic/qaic_data.c
@@ -595,8 +595,11 @@ static const struct vm_operations_struct drm_vm_ops = {
static int qaic_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma)
{
struct qaic_bo *bo = to_qaic_bo(obj);
+ unsigned long remap_start;
unsigned long offset = 0;
+ unsigned long remap_end;
struct scatterlist *sg;
+ unsigned long length;
int ret = 0;
if (obj->import_attach)
@@ -604,11 +607,27 @@ static int qaic_gem_object_mmap(struct drm_gem_object *obj, struct vm_area_struc
for (sg = bo->sgt->sgl; sg; sg = sg_next(sg)) {
if (sg_page(sg)) {
+ /* if sg is too large for the VMA, so truncate it to fit */
+ if (check_add_overflow(vma->vm_start, offset, &remap_start))
+ return -EINVAL;
+ if (check_add_overflow(remap_start, sg->length, &remap_end))
+ return -EINVAL;
+
+ if (remap_end > vma->vm_end) {
+ if (check_sub_overflow(vma->vm_end, remap_start, &length))
+ return -EINVAL;
+ } else {
+ length = sg->length;
+ }
+
+ if (length == 0)
+ goto out;
+
ret = remap_pfn_range(vma, vma->vm_start + offset, page_to_pfn(sg_page(sg)),
- sg->length, vma->vm_page_prot);
+ length, vma->vm_page_prot);
if (ret)
goto out;
- offset += sg->length;
+ offset += length;
}
}
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index b97e13a52c33..ae57df879bca 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -463,6 +463,36 @@ int bus_for_each_drv(const struct bus_type *bus, struct device_driver *start,
}
EXPORT_SYMBOL_GPL(bus_for_each_drv);
+static ssize_t driver_override_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ int ret;
+
+ ret = __device_set_driver_override(dev, buf, count);
+ if (ret)
+ return ret;
+
+ return count;
+}
+
+static ssize_t driver_override_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ guard(spinlock)(&dev->driver_override.lock);
+ return sysfs_emit(buf, "%s\n", dev->driver_override.name);
+}
+static DEVICE_ATTR_RW(driver_override);
+
+static struct attribute *driver_override_dev_attrs[] = {
+ &dev_attr_driver_override.attr,
+ NULL,
+};
+
+static const struct attribute_group driver_override_dev_group = {
+ .attrs = driver_override_dev_attrs,
+};
+
/**
* bus_add_device - add device to bus
* @dev: device being added
@@ -496,9 +526,15 @@ int bus_add_device(struct device *dev)
if (error)
goto out_put;
+ if (dev->bus->driver_override) {
+ error = device_add_group(dev, &driver_override_dev_group);
+ if (error)
+ goto out_groups;
+ }
+
error = sysfs_create_link(&sp->devices_kset->kobj, &dev->kobj, dev_name(dev));
if (error)
- goto out_groups;
+ goto out_override;
error = sysfs_create_link(&dev->kobj, &sp->subsys.kobj, "subsystem");
if (error)
@@ -509,6 +545,9 @@ int bus_add_device(struct device *dev)
out_subsys:
sysfs_remove_link(&sp->devices_kset->kobj, dev_name(dev));
+out_override:
+ if (dev->bus->driver_override)
+ device_remove_group(dev, &driver_override_dev_group);
out_groups:
device_remove_groups(dev, sp->bus->dev_groups);
out_put:
@@ -567,6 +606,8 @@ void bus_remove_device(struct device *dev)
sysfs_remove_link(&dev->kobj, "subsystem");
sysfs_remove_link(&sp->devices_kset->kobj, dev_name(dev));
+ if (dev->bus->driver_override)
+ device_remove_group(dev, &driver_override_dev_group);
device_remove_groups(dev, dev->bus->dev_groups);
if (klist_node_attached(&dev->p->knode_bus))
klist_del(&dev->p->knode_bus);
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 3c172e6d3fe0..5048849cb97a 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -2505,6 +2505,7 @@ static void device_release(struct kobject *kobj)
devres_release_all(dev);
kfree(dev->dma_range_map);
+ kfree(dev->driver_override.name);
if (dev->release)
dev->release(dev);
@@ -3153,6 +3154,7 @@ void device_initialize(struct device *dev)
kobject_init(&dev->kobj, &device_ktype);
INIT_LIST_HEAD(&dev->dma_pools);
mutex_init(&dev->mutex);
+ spin_lock_init(&dev->driver_override.lock);
lockdep_set_novalidate_class(&dev->mutex);
spin_lock_init(&dev->devres_lock);
INIT_LIST_HEAD(&dev->devres_head);
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index d371c3437dc6..44f9d0a06d5b 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -380,6 +380,66 @@ static void __exit deferred_probe_exit(void)
}
__exitcall(deferred_probe_exit);
+int __device_set_driver_override(struct device *dev, const char *s, size_t len)
+{
+ const char *new, *old;
+ char *cp;
+
+ if (!s)
+ return -EINVAL;
+
+ /*
+ * The stored value will be used in sysfs show callback (sysfs_emit()),
+ * which has a length limit of PAGE_SIZE and adds a trailing newline.
+ * Thus we can store one character less to avoid truncation during sysfs
+ * show.
+ */
+ if (len >= (PAGE_SIZE - 1))
+ return -EINVAL;
+
+ /*
+ * Compute the real length of the string in case userspace sends us a
+ * bunch of \0 characters like python likes to do.
+ */
+ len = strlen(s);
+
+ if (!len) {
+ /* Empty string passed - clear override */
+ spin_lock(&dev->driver_override.lock);
+ old = dev->driver_override.name;
+ dev->driver_override.name = NULL;
+ spin_unlock(&dev->driver_override.lock);
+ kfree(old);
+
+ return 0;
+ }
+
+ cp = strnchr(s, len, '\n');
+ if (cp)
+ len = cp - s;
+
+ new = kstrndup(s, len, GFP_KERNEL);
+ if (!new)
+ return -ENOMEM;
+
+ spin_lock(&dev->driver_override.lock);
+ old = dev->driver_override.name;
+ if (cp != s) {
+ dev->driver_override.name = new;
+ spin_unlock(&dev->driver_override.lock);
+ } else {
+ /* "\n" passed - clear override */
+ dev->driver_override.name = NULL;
+ spin_unlock(&dev->driver_override.lock);
+
+ kfree(new);
+ }
+ kfree(old);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(__device_set_driver_override);
+
/**
* device_is_bound() - Check if device is bound to a driver
* @dev: device to check
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 8a13babd826c..9e413f522bd6 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -1211,8 +1211,10 @@ void memblk_nr_poison_inc(unsigned long pfn)
const unsigned long block_id = pfn_to_block_id(pfn);
struct memory_block *mem = find_memory_block_by_id(block_id);
- if (mem)
+ if (mem) {
atomic_long_inc(&mem->nr_hwpoison);
+ put_device(&mem->dev);
+ }
}
void memblk_nr_poison_sub(unsigned long pfn, long i)
@@ -1220,8 +1222,10 @@ void memblk_nr_poison_sub(unsigned long pfn, long i)
const unsigned long block_id = pfn_to_block_id(pfn);
struct memory_block *mem = find_memory_block_by_id(block_id);
- if (mem)
+ if (mem) {
atomic_long_sub(i, &mem->nr_hwpoison);
+ put_device(&mem->dev);
+ }
}
static unsigned long memblk_nr_poison(struct memory_block *mem)
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 76bfcba25003..1cc9a876b3cd 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -561,7 +561,6 @@ static void platform_device_release(struct device *dev)
kfree(pa->pdev.dev.platform_data);
kfree(pa->pdev.mfd_cell);
kfree(pa->pdev.resource);
- kfree(pa->pdev.driver_override);
kfree(pa);
}
@@ -1265,38 +1264,9 @@ static ssize_t numa_node_show(struct device *dev,
}
static DEVICE_ATTR_RO(numa_node);
-static ssize_t driver_override_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct platform_device *pdev = to_platform_device(dev);
- ssize_t len;
-
- device_lock(dev);
- len = sysfs_emit(buf, "%s\n", pdev->driver_override);
- device_unlock(dev);
-
- return len;
-}
-
-static ssize_t driver_override_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct platform_device *pdev = to_platform_device(dev);
- int ret;
-
- ret = driver_set_override(dev, &pdev->driver_override, buf, count);
- if (ret)
- return ret;
-
- return count;
-}
-static DEVICE_ATTR_RW(driver_override);
-
static struct attribute *platform_dev_attrs[] = {
&dev_attr_modalias.attr,
&dev_attr_numa_node.attr,
- &dev_attr_driver_override.attr,
NULL,
};
@@ -1336,10 +1306,12 @@ static int platform_match(struct device *dev, struct device_driver *drv)
{
struct platform_device *pdev = to_platform_device(dev);
struct platform_driver *pdrv = to_platform_driver(drv);
+ int ret;
/* When driver_override is set, only bind to the matching driver */
- if (pdev->driver_override)
- return !strcmp(pdev->driver_override, drv->name);
+ ret = device_match_driver_override(dev, drv);
+ if (ret >= 0)
+ return ret;
/* Attempt an OF style match first */
if (of_driver_match_device(dev, drv))
@@ -1482,6 +1454,7 @@ static const struct dev_pm_ops platform_dev_pm_ops = {
struct bus_type platform_bus_type = {
.name = "platform",
.dev_groups = platform_dev_groups,
+ .driver_override = true,
.match = platform_match,
.uevent = platform_uevent,
.probe = platform_probe,
diff --git a/drivers/bluetooth/btmtk.c b/drivers/bluetooth/btmtk.c
index 4c53ab22d09b..ad8753dda826 100644
--- a/drivers/bluetooth/btmtk.c
+++ b/drivers/bluetooth/btmtk.c
@@ -4,6 +4,7 @@
*/
#include <linux/module.h>
#include <linux/firmware.h>
+#include <linux/usb.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
@@ -64,7 +65,7 @@ static void btmtk_coredump(struct hci_dev *hdev)
static void btmtk_coredump_hdr(struct hci_dev *hdev, struct sk_buff *skb)
{
- struct btmediatek_data *data = hci_get_priv(hdev);
+ struct btmtk_data *data = hci_get_priv(hdev);
char buf[80];
snprintf(buf, sizeof(buf), "Controller Name: 0x%X\n",
@@ -85,7 +86,7 @@ static void btmtk_coredump_hdr(struct hci_dev *hdev, struct sk_buff *skb)
static void btmtk_coredump_notify(struct hci_dev *hdev, int state)
{
- struct btmediatek_data *data = hci_get_priv(hdev);
+ struct btmtk_data *data = hci_get_priv(hdev);
switch (state) {
case HCI_DEVCOREDUMP_IDLE:
@@ -103,6 +104,24 @@ static void btmtk_coredump_notify(struct hci_dev *hdev, int state)
}
}
+void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id, u32 fw_ver,
+ u32 fw_flavor)
+{
+ if (dev_id == 0x7925)
+ snprintf(buf, size,
+ "mediatek/mt%04x/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
+ dev_id & 0xffff, dev_id & 0xffff, (fw_ver & 0xff) + 1);
+ else if (dev_id == 0x7961 && fw_flavor)
+ snprintf(buf, size,
+ "mediatek/BT_RAM_CODE_MT%04x_1a_%x_hdr.bin",
+ dev_id & 0xffff, (fw_ver & 0xff) + 1);
+ else
+ snprintf(buf, size,
+ "mediatek/BT_RAM_CODE_MT%04x_1_%x_hdr.bin",
+ dev_id & 0xffff, (fw_ver & 0xff) + 1);
+}
+EXPORT_SYMBOL_GPL(btmtk_fw_get_filename);
+
int btmtk_setup_firmware_79xx(struct hci_dev *hdev, const char *fwname,
wmt_cmd_sync_func_t wmt_cmd_sync)
{
@@ -337,7 +356,7 @@ EXPORT_SYMBOL_GPL(btmtk_set_bdaddr);
void btmtk_reset_sync(struct hci_dev *hdev)
{
- struct btmediatek_data *reset_work = hci_get_priv(hdev);
+ struct btmtk_data *reset_work = hci_get_priv(hdev);
int err;
hci_dev_lock(hdev);
@@ -353,7 +372,7 @@ EXPORT_SYMBOL_GPL(btmtk_reset_sync);
int btmtk_register_coredump(struct hci_dev *hdev, const char *name,
u32 fw_version)
{
- struct btmediatek_data *data = hci_get_priv(hdev);
+ struct btmtk_data *data = hci_get_priv(hdev);
if (!IS_ENABLED(CONFIG_DEV_COREDUMP))
return -EOPNOTSUPP;
@@ -369,7 +388,7 @@ EXPORT_SYMBOL_GPL(btmtk_register_coredump);
int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb)
{
- struct btmediatek_data *data = hci_get_priv(hdev);
+ struct btmtk_data *data = hci_get_priv(hdev);
int err;
bool complete = false;
@@ -417,6 +436,272 @@ int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb)
}
EXPORT_SYMBOL_GPL(btmtk_process_coredump);
+static void btmtk_usb_wmt_recv(struct urb *urb)
+{
+ struct hci_dev *hdev = urb->context;
+ struct btmtk_data *data = hci_get_priv(hdev);
+ struct sk_buff *skb;
+ int err;
+
+ if (urb->status == 0 && urb->actual_length > 0) {
+ hdev->stat.byte_rx += urb->actual_length;
+
+ /* WMT event shouldn't be fragmented and the size should be
+ * less than HCI_WMT_MAX_EVENT_SIZE.
+ */
+ skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
+ if (!skb) {
+ hdev->stat.err_rx++;
+ kfree(urb->setup_packet);
+ return;
+ }
+
+ hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
+ skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
+
+ /* When someone waits for the WMT event, the skb is being cloned
+ * and being processed the events from there then.
+ */
+ if (test_bit(BTMTK_TX_WAIT_VND_EVT, &data->flags)) {
+ data->evt_skb = skb_clone(skb, GFP_ATOMIC);
+ if (!data->evt_skb) {
+ kfree_skb(skb);
+ kfree(urb->setup_packet);
+ return;
+ }
+ }
+
+ err = hci_recv_frame(hdev, skb);
+ if (err < 0) {
+ kfree_skb(data->evt_skb);
+ data->evt_skb = NULL;
+ kfree(urb->setup_packet);
+ return;
+ }
+
+ if (test_and_clear_bit(BTMTK_TX_WAIT_VND_EVT,
+ &data->flags)) {
+ /* Barrier to sync with other CPUs */
+ smp_mb__after_atomic();
+ wake_up_bit(&data->flags,
+ BTMTK_TX_WAIT_VND_EVT);
+ }
+ kfree(urb->setup_packet);
+ return;
+ } else if (urb->status == -ENOENT) {
+ /* Avoid suspend failed when usb_kill_urb */
+ kfree(urb->setup_packet);
+ return;
+ }
+
+ usb_mark_last_busy(data->udev);
+
+ /* The URB complete handler is still called with urb->actual_length = 0
+ * when the event is not available, so we should keep re-submitting
+ * URB until WMT event returns, Also, It's necessary to wait some time
+ * between the two consecutive control URBs to relax the target device
+ * to generate the event. Otherwise, the WMT event cannot return from
+ * the device successfully.
+ */
+ udelay(500);
+
+ usb_anchor_urb(urb, data->ctrl_anchor);
+ err = usb_submit_urb(urb, GFP_ATOMIC);
+ if (err < 0) {
+ kfree(urb->setup_packet);
+ /* -EPERM: urb is being killed;
+ * -ENODEV: device got disconnected
+ */
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
+ urb, -err);
+ usb_unanchor_urb(urb);
+ }
+}
+
+static int btmtk_usb_submit_wmt_recv_urb(struct hci_dev *hdev)
+{
+ struct btmtk_data *data = hci_get_priv(hdev);
+ struct usb_ctrlrequest *dr;
+ unsigned char *buf;
+ int err, size = 64;
+ unsigned int pipe;
+ struct urb *urb;
+
+ urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!urb)
+ return -ENOMEM;
+
+ dr = kmalloc(sizeof(*dr), GFP_KERNEL);
+ if (!dr) {
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
+ dr->bRequest = 1;
+ dr->wIndex = cpu_to_le16(0);
+ dr->wValue = cpu_to_le16(48);
+ dr->wLength = cpu_to_le16(size);
+
+ buf = kmalloc(size, GFP_KERNEL);
+ if (!buf) {
+ kfree(dr);
+ usb_free_urb(urb);
+ return -ENOMEM;
+ }
+
+ pipe = usb_rcvctrlpipe(data->udev, 0);
+
+ usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
+ buf, size, btmtk_usb_wmt_recv, hdev);
+
+ urb->transfer_flags |= URB_FREE_BUFFER;
+
+ usb_anchor_urb(urb, data->ctrl_anchor);
+ err = usb_submit_urb(urb, GFP_KERNEL);
+ if (err < 0) {
+ if (err != -EPERM && err != -ENODEV)
+ bt_dev_err(hdev, "urb %p submission failed (%d)",
+ urb, -err);
+ kfree(dr);
+ usb_unanchor_urb(urb);
+ }
+
+ usb_free_urb(urb);
+
+ return err;
+}
+
+int btmtk_usb_hci_wmt_sync(struct hci_dev *hdev,
+ struct btmtk_hci_wmt_params *wmt_params)
+{
+ struct btmtk_data *data = hci_get_priv(hdev);
+ struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
+ u32 hlen, status = BTMTK_WMT_INVALID;
+ struct btmtk_hci_wmt_evt *wmt_evt;
+ struct btmtk_hci_wmt_cmd *wc;
+ struct btmtk_wmt_hdr *hdr;
+ int err;
+
+ /* Send the WMT command and wait until the WMT event returns */
+ hlen = sizeof(*hdr) + wmt_params->dlen;
+ if (hlen > 255)
+ return -EINVAL;
+
+ wc = kzalloc(hlen, GFP_KERNEL);
+ if (!wc)
+ return -ENOMEM;
+
+ hdr = &wc->hdr;
+ hdr->dir = 1;
+ hdr->op = wmt_params->op;
+ hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
+ hdr->flag = wmt_params->flag;
+ memcpy(wc->data, wmt_params->data, wmt_params->dlen);
+
+ set_bit(BTMTK_TX_WAIT_VND_EVT, &data->flags);
+
+ /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
+ * it needs constantly polling control pipe until the host received the
+ * WMT event, thus, we should require to specifically acquire PM counter
+ * on the USB to prevent the interface from entering auto suspended
+ * while WMT cmd/event in progress.
+ */
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ goto err_free_wc;
+
+ err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
+
+ if (err < 0) {
+ clear_bit(BTMTK_TX_WAIT_VND_EVT, &data->flags);
+ usb_autopm_put_interface(data->intf);
+ goto err_free_wc;
+ }
+
+ /* Submit control IN URB on demand to process the WMT event */
+ err = btmtk_usb_submit_wmt_recv_urb(hdev);
+
+ usb_autopm_put_interface(data->intf);
+
+ if (err < 0)
+ goto err_free_wc;
+
+ /* The vendor specific WMT commands are all answered by a vendor
+ * specific event and will have the Command Status or Command
+ * Complete as with usual HCI command flow control.
+ *
+ * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
+ * state to be cleared. The driver specific event receive routine
+ * will clear that state and with that indicate completion of the
+ * WMT command.
+ */
+ err = wait_on_bit_timeout(&data->flags, BTMTK_TX_WAIT_VND_EVT,
+ TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
+ if (err == -EINTR) {
+ bt_dev_err(hdev, "Execution of wmt command interrupted");
+ clear_bit(BTMTK_TX_WAIT_VND_EVT, &data->flags);
+ goto err_free_wc;
+ }
+
+ if (err) {
+ bt_dev_err(hdev, "Execution of wmt command timed out");
+ clear_bit(BTMTK_TX_WAIT_VND_EVT, &data->flags);
+ err = -ETIMEDOUT;
+ goto err_free_wc;
+ }
+
+ if (data->evt_skb == NULL)
+ goto err_free_wc;
+
+ /* Parse and handle the return WMT event */
+ wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
+ if (wmt_evt->whdr.op != hdr->op) {
+ bt_dev_err(hdev, "Wrong op received %d expected %d",
+ wmt_evt->whdr.op, hdr->op);
+ err = -EIO;
+ goto err_free_skb;
+ }
+
+ switch (wmt_evt->whdr.op) {
+ case BTMTK_WMT_SEMAPHORE:
+ if (wmt_evt->whdr.flag == 2)
+ status = BTMTK_WMT_PATCH_UNDONE;
+ else
+ status = BTMTK_WMT_PATCH_DONE;
+ break;
+ case BTMTK_WMT_FUNC_CTRL:
+ wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
+ if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
+ status = BTMTK_WMT_ON_DONE;
+ else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
+ status = BTMTK_WMT_ON_PROGRESS;
+ else
+ status = BTMTK_WMT_ON_UNDONE;
+ break;
+ case BTMTK_WMT_PATCH_DWNLD:
+ if (wmt_evt->whdr.flag == 2)
+ status = BTMTK_WMT_PATCH_DONE;
+ else if (wmt_evt->whdr.flag == 1)
+ status = BTMTK_WMT_PATCH_PROGRESS;
+ else
+ status = BTMTK_WMT_PATCH_UNDONE;
+ break;
+ }
+
+ if (wmt_params->status)
+ *wmt_params->status = status;
+
+err_free_skb:
+ kfree_skb(data->evt_skb);
+ data->evt_skb = NULL;
+err_free_wc:
+ kfree(wc);
+ return err;
+}
+EXPORT_SYMBOL_GPL(btmtk_usb_hci_wmt_sync);
+
MODULE_AUTHOR("Sean Wang <sean.wang@mediatek.com>");
MODULE_AUTHOR("Mark Chen <mark-yw.chen@mediatek.com>");
MODULE_DESCRIPTION("Bluetooth support for MediaTek devices ver " VERSION);
diff --git a/drivers/bluetooth/btmtk.h b/drivers/bluetooth/btmtk.h
index cbcdb99a22e6..3055b9728ae2 100644
--- a/drivers/bluetooth/btmtk.h
+++ b/drivers/bluetooth/btmtk.h
@@ -28,6 +28,18 @@
#define MTK_COREDUMP_END_LEN (sizeof(MTK_COREDUMP_END))
#define MTK_COREDUMP_NUM 255
+/* UHW CR mapping */
+#define MTK_BT_MISC 0x70002510
+#define MTK_BT_SUBSYS_RST 0x70002610
+#define MTK_UDMA_INT_STA_BT 0x74000024
+#define MTK_UDMA_INT_STA_BT1 0x74000308
+#define MTK_BT_WDT_STATUS 0x740003A0
+#define MTK_EP_RST_OPT 0x74011890
+#define MTK_EP_RST_IN_OUT_OPT 0x00010001
+#define MTK_BT_RST_DONE 0x00000100
+#define MTK_BT_RESET_REG_CONNV3 0x70028610
+#define MTK_BT_READ_DEV_ID 0x70010200
+
enum {
BTMTK_WMT_PATCH_DWNLD = 0x1,
BTMTK_WMT_TEST = 0x2,
@@ -126,6 +138,10 @@ struct btmtk_hci_wmt_params {
u32 *status;
};
+enum {
+ BTMTK_TX_WAIT_VND_EVT,
+};
+
typedef int (*btmtk_reset_sync_func_t)(struct hci_dev *, void *);
struct btmtk_coredump_info {
@@ -135,10 +151,16 @@ struct btmtk_coredump_info {
int state;
};
-struct btmediatek_data {
+struct btmtk_data {
+ unsigned long flags;
u32 dev_id;
btmtk_reset_sync_func_t reset_sync;
struct btmtk_coredump_info cd_info;
+
+ struct usb_device *udev;
+ struct usb_interface *intf;
+ struct usb_anchor *ctrl_anchor;
+ struct sk_buff *evt_skb;
};
typedef int (*wmt_cmd_sync_func_t)(struct hci_dev *,
@@ -160,6 +182,12 @@ int btmtk_register_coredump(struct hci_dev *hdev, const char *name,
u32 fw_version);
int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb);
+
+void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id, u32 fw_ver,
+ u32 fw_flavor);
+
+int btmtk_usb_hci_wmt_sync(struct hci_dev *hdev,
+ struct btmtk_hci_wmt_params *wmt_params);
#else
static inline int btmtk_set_bdaddr(struct hci_dev *hdev,
@@ -194,4 +222,15 @@ static int btmtk_process_coredump(struct hci_dev *hdev, struct sk_buff *skb)
{
return -EOPNOTSUPP;
}
+
+static void btmtk_fw_get_filename(char *buf, size_t size, u32 dev_id,
+ u32 fw_ver, u32 fw_flavor)
+{
+}
+
+static int btmtk_usb_hci_wmt_sync(struct hci_dev *hdev,
+ struct btmtk_hci_wmt_params *wmt_params)
+{
+ return -EOPNOTSUPP;
+}
#endif
diff --git a/drivers/bluetooth/btmtksdio.c b/drivers/bluetooth/btmtksdio.c
index 97659b4792e6..e249aa758783 100644
--- a/drivers/bluetooth/btmtksdio.c
+++ b/drivers/bluetooth/btmtksdio.c
@@ -20,6 +20,7 @@
#include <linux/of.h>
#include <linux/pm_runtime.h>
#include <linux/skbuff.h>
+#include <linux/usb.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sdio_ids.h>
diff --git a/drivers/bluetooth/btmtkuart.c b/drivers/bluetooth/btmtkuart.c
index 203a000a84e3..9823c40ae268 100644
--- a/drivers/bluetooth/btmtkuart.c
+++ b/drivers/bluetooth/btmtkuart.c
@@ -22,6 +22,7 @@
#include <linux/regulator/consumer.h>
#include <linux/serdev.h>
#include <linux/skbuff.h>
+#include <linux/usb.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index c51523d780e6..3d0533a05134 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -2686,282 +2686,6 @@ static int btusb_recv_event_realtek(struct hci_dev *hdev, struct sk_buff *skb)
return hci_recv_frame(hdev, skb);
}
-/* UHW CR mapping */
-#define MTK_BT_MISC 0x70002510
-#define MTK_BT_SUBSYS_RST 0x70002610
-#define MTK_UDMA_INT_STA_BT 0x74000024
-#define MTK_UDMA_INT_STA_BT1 0x74000308
-#define MTK_BT_WDT_STATUS 0x740003A0
-#define MTK_EP_RST_OPT 0x74011890
-#define MTK_EP_RST_IN_OUT_OPT 0x00010001
-#define MTK_BT_RST_DONE 0x00000100
-#define MTK_BT_RESET_REG_CONNV3 0x70028610
-#define MTK_BT_READ_DEV_ID 0x70010200
-
-
-static void btusb_mtk_wmt_recv(struct urb *urb)
-{
- struct hci_dev *hdev = urb->context;
- struct btusb_data *data = hci_get_drvdata(hdev);
- struct sk_buff *skb;
- int err;
-
- if (urb->status == 0 && urb->actual_length > 0) {
- hdev->stat.byte_rx += urb->actual_length;
-
- /* WMT event shouldn't be fragmented and the size should be
- * less than HCI_WMT_MAX_EVENT_SIZE.
- */
- skb = bt_skb_alloc(HCI_WMT_MAX_EVENT_SIZE, GFP_ATOMIC);
- if (!skb) {
- hdev->stat.err_rx++;
- kfree(urb->setup_packet);
- return;
- }
-
- hci_skb_pkt_type(skb) = HCI_EVENT_PKT;
- skb_put_data(skb, urb->transfer_buffer, urb->actual_length);
-
- /* When someone waits for the WMT event, the skb is being cloned
- * and being processed the events from there then.
- */
- if (test_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags)) {
- data->evt_skb = skb_clone(skb, GFP_ATOMIC);
- if (!data->evt_skb) {
- kfree_skb(skb);
- kfree(urb->setup_packet);
- return;
- }
- }
-
- err = hci_recv_frame(hdev, skb);
- if (err < 0) {
- kfree_skb(data->evt_skb);
- data->evt_skb = NULL;
- kfree(urb->setup_packet);
- return;
- }
-
- if (test_and_clear_bit(BTUSB_TX_WAIT_VND_EVT,
- &data->flags)) {
- /* Barrier to sync with other CPUs */
- smp_mb__after_atomic();
- wake_up_bit(&data->flags,
- BTUSB_TX_WAIT_VND_EVT);
- }
- kfree(urb->setup_packet);
- return;
- } else if (urb->status == -ENOENT) {
- /* Avoid suspend failed when usb_kill_urb */
- return;
- }
-
- usb_mark_last_busy(data->udev);
-
- /* The URB complete handler is still called with urb->actual_length = 0
- * when the event is not available, so we should keep re-submitting
- * URB until WMT event returns, Also, It's necessary to wait some time
- * between the two consecutive control URBs to relax the target device
- * to generate the event. Otherwise, the WMT event cannot return from
- * the device successfully.
- */
- udelay(500);
-
- usb_anchor_urb(urb, &data->ctrl_anchor);
- err = usb_submit_urb(urb, GFP_ATOMIC);
- if (err < 0) {
- kfree(urb->setup_packet);
- /* -EPERM: urb is being killed;
- * -ENODEV: device got disconnected
- */
- if (err != -EPERM && err != -ENODEV)
- bt_dev_err(hdev, "urb %p failed to resubmit (%d)",
- urb, -err);
- usb_unanchor_urb(urb);
- }
-}
-
-static int btusb_mtk_submit_wmt_recv_urb(struct hci_dev *hdev)
-{
- struct btusb_data *data = hci_get_drvdata(hdev);
- struct usb_ctrlrequest *dr;
- unsigned char *buf;
- int err, size = 64;
- unsigned int pipe;
- struct urb *urb;
-
- urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!urb)
- return -ENOMEM;
-
- dr = kmalloc(sizeof(*dr), GFP_KERNEL);
- if (!dr) {
- usb_free_urb(urb);
- return -ENOMEM;
- }
-
- dr->bRequestType = USB_TYPE_VENDOR | USB_DIR_IN;
- dr->bRequest = 1;
- dr->wIndex = cpu_to_le16(0);
- dr->wValue = cpu_to_le16(48);
- dr->wLength = cpu_to_le16(size);
-
- buf = kmalloc(size, GFP_KERNEL);
- if (!buf) {
- kfree(dr);
- usb_free_urb(urb);
- return -ENOMEM;
- }
-
- pipe = usb_rcvctrlpipe(data->udev, 0);
-
- usb_fill_control_urb(urb, data->udev, pipe, (void *)dr,
- buf, size, btusb_mtk_wmt_recv, hdev);
-
- urb->transfer_flags |= URB_FREE_BUFFER;
-
- usb_anchor_urb(urb, &data->ctrl_anchor);
- err = usb_submit_urb(urb, GFP_KERNEL);
- if (err < 0) {
- if (err != -EPERM && err != -ENODEV)
- bt_dev_err(hdev, "urb %p submission failed (%d)",
- urb, -err);
- usb_unanchor_urb(urb);
- }
-
- usb_free_urb(urb);
-
- return err;
-}
-
-static int btusb_mtk_hci_wmt_sync(struct hci_dev *hdev,
- struct btmtk_hci_wmt_params *wmt_params)
-{
- struct btusb_data *data = hci_get_drvdata(hdev);
- struct btmtk_hci_wmt_evt_funcc *wmt_evt_funcc;
- u32 hlen, status = BTMTK_WMT_INVALID;
- struct btmtk_hci_wmt_evt *wmt_evt;
- struct btmtk_hci_wmt_cmd *wc;
- struct btmtk_wmt_hdr *hdr;
- int err;
-
- /* Send the WMT command and wait until the WMT event returns */
- hlen = sizeof(*hdr) + wmt_params->dlen;
- if (hlen > 255)
- return -EINVAL;
-
- wc = kzalloc(hlen, GFP_KERNEL);
- if (!wc)
- return -ENOMEM;
-
- hdr = &wc->hdr;
- hdr->dir = 1;
- hdr->op = wmt_params->op;
- hdr->dlen = cpu_to_le16(wmt_params->dlen + 1);
- hdr->flag = wmt_params->flag;
- memcpy(wc->data, wmt_params->data, wmt_params->dlen);
-
- set_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
-
- /* WMT cmd/event doesn't follow up the generic HCI cmd/event handling,
- * it needs constantly polling control pipe until the host received the
- * WMT event, thus, we should require to specifically acquire PM counter
- * on the USB to prevent the interface from entering auto suspended
- * while WMT cmd/event in progress.
- */
- err = usb_autopm_get_interface(data->intf);
- if (err < 0)
- goto err_free_wc;
-
- err = __hci_cmd_send(hdev, 0xfc6f, hlen, wc);
-
- if (err < 0) {
- clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
- usb_autopm_put_interface(data->intf);
- goto err_free_wc;
- }
-
- /* Submit control IN URB on demand to process the WMT event */
- err = btusb_mtk_submit_wmt_recv_urb(hdev);
-
- usb_autopm_put_interface(data->intf);
-
- if (err < 0)
- goto err_free_wc;
-
- /* The vendor specific WMT commands are all answered by a vendor
- * specific event and will have the Command Status or Command
- * Complete as with usual HCI command flow control.
- *
- * After sending the command, wait for BTUSB_TX_WAIT_VND_EVT
- * state to be cleared. The driver specific event receive routine
- * will clear that state and with that indicate completion of the
- * WMT command.
- */
- err = wait_on_bit_timeout(&data->flags, BTUSB_TX_WAIT_VND_EVT,
- TASK_INTERRUPTIBLE, HCI_INIT_TIMEOUT);
- if (err == -EINTR) {
- bt_dev_err(hdev, "Execution of wmt command interrupted");
- clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
- goto err_free_wc;
- }
-
- if (err) {
- bt_dev_err(hdev, "Execution of wmt command timed out");
- clear_bit(BTUSB_TX_WAIT_VND_EVT, &data->flags);
- err = -ETIMEDOUT;
- goto err_free_wc;
- }
-
- if (data->evt_skb == NULL)
- goto err_free_wc;
-
- /* Parse and handle the return WMT event */
- wmt_evt = (struct btmtk_hci_wmt_evt *)data->evt_skb->data;
- if (wmt_evt->whdr.op != hdr->op) {
- bt_dev_err(hdev, "Wrong op received %d expected %d",
- wmt_evt->whdr.op, hdr->op);
- err = -EIO;
- goto err_free_skb;
- }
-
- switch (wmt_evt->whdr.op) {
- case BTMTK_WMT_SEMAPHORE:
- if (wmt_evt->whdr.flag == 2)
- status = BTMTK_WMT_PATCH_UNDONE;
- else
- status = BTMTK_WMT_PATCH_DONE;
- break;
- case BTMTK_WMT_FUNC_CTRL:
- wmt_evt_funcc = (struct btmtk_hci_wmt_evt_funcc *)wmt_evt;
- if (be16_to_cpu(wmt_evt_funcc->status) == 0x404)
- status = BTMTK_WMT_ON_DONE;
- else if (be16_to_cpu(wmt_evt_funcc->status) == 0x420)
- status = BTMTK_WMT_ON_PROGRESS;
- else
- status = BTMTK_WMT_ON_UNDONE;
- break;
- case BTMTK_WMT_PATCH_DWNLD:
- if (wmt_evt->whdr.flag == 2)
- status = BTMTK_WMT_PATCH_DONE;
- else if (wmt_evt->whdr.flag == 1)
- status = BTMTK_WMT_PATCH_PROGRESS;
- else
- status = BTMTK_WMT_PATCH_UNDONE;
- break;
- }
-
- if (wmt_params->status)
- *wmt_params->status = status;
-
-err_free_skb:
- kfree_skb(data->evt_skb);
- data->evt_skb = NULL;
-err_free_wc:
- kfree(wc);
- return err;
-}
-
static int btusb_mtk_func_query(struct hci_dev *hdev)
{
struct btmtk_hci_wmt_params wmt_params;
@@ -2975,7 +2699,7 @@ static int btusb_mtk_func_query(struct hci_dev *hdev)
wmt_params.data = ¶m;
wmt_params.status = &status;
- err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ err = btmtk_usb_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to query function status (%d)", err);
return err;
@@ -3081,28 +2805,13 @@ static u32 btusb_mtk_reset_done(struct hci_dev *hdev)
return val & MTK_BT_RST_DONE;
}
-static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
+static int btusb_mtk_subsys_reset(struct hci_dev *hdev, u32 dev_id)
{
struct btusb_data *data = hci_get_drvdata(hdev);
- struct btmediatek_data *mediatek;
u32 val;
int err;
- /* It's MediaTek specific bluetooth reset mechanism via USB */
- if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
- bt_dev_err(hdev, "last reset failed? Not resetting again");
- return -EBUSY;
- }
-
- err = usb_autopm_get_interface(data->intf);
- if (err < 0)
- return err;
-
- btusb_stop_traffic(data);
- usb_kill_anchored_urbs(&data->tx_anchor);
- mediatek = hci_get_priv(hdev);
-
- if (mediatek->dev_id == 0x7925) {
+ if (dev_id == 0x7925) {
btusb_mtk_uhw_reg_read(data, MTK_BT_RESET_REG_CONNV3, &val);
val |= (1 << 5);
btusb_mtk_uhw_reg_write(data, MTK_BT_RESET_REG_CONNV3, val);
@@ -3146,8 +2855,31 @@ static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
if (!val)
bt_dev_err(hdev, "Can't get device id, subsys reset fail.");
- usb_queue_reset_device(data->intf);
+ return err;
+}
+
+static int btusb_mtk_reset(struct hci_dev *hdev, void *rst_data)
+{
+ struct btusb_data *data = hci_get_drvdata(hdev);
+ struct btmtk_data *btmtk_data = hci_get_priv(hdev);
+ int err;
+
+ /* It's MediaTek specific bluetooth reset mechanism via USB */
+ if (test_and_set_bit(BTUSB_HW_RESET_ACTIVE, &data->flags)) {
+ bt_dev_err(hdev, "last reset failed? Not resetting again");
+ return -EBUSY;
+ }
+
+ err = usb_autopm_get_interface(data->intf);
+ if (err < 0)
+ return err;
+ btusb_stop_traffic(data);
+ usb_kill_anchored_urbs(&data->tx_anchor);
+
+ err = btusb_mtk_subsys_reset(hdev, btmtk_data->dev_id);
+
+ usb_queue_reset_device(data->intf);
clear_bit(BTUSB_HW_RESET_ACTIVE, &data->flags);
return err;
@@ -3167,7 +2899,7 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
char fw_bin_name[64];
u32 fw_version = 0;
u8 param;
- struct btmediatek_data *mediatek;
+ struct btmtk_data *mediatek;
calltime = ktime_get();
@@ -3218,7 +2950,7 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
dev_id & 0xffff, (fw_version & 0xff) + 1);
err = btmtk_setup_firmware_79xx(hdev, fw_bin_name,
- btusb_mtk_hci_wmt_sync);
+ btmtk_usb_hci_wmt_sync);
if (err < 0) {
bt_dev_err(hdev, "Failed to set up firmware (%d)", err);
return err;
@@ -3235,7 +2967,7 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
wmt_params.data = ¶m;
wmt_params.status = NULL;
- err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ err = btmtk_usb_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
return err;
@@ -3257,7 +2989,7 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
wmt_params.data = NULL;
wmt_params.status = &status;
- err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ err = btmtk_usb_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to query firmware status (%d)", err);
return err;
@@ -3270,7 +3002,7 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
/* Setup a firmware which the device definitely requires */
err = btmtk_setup_firmware(hdev, fwname,
- btusb_mtk_hci_wmt_sync);
+ btmtk_usb_hci_wmt_sync);
if (err < 0)
return err;
@@ -3299,7 +3031,7 @@ static int btusb_mtk_setup(struct hci_dev *hdev)
wmt_params.data = ¶m;
wmt_params.status = NULL;
- err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ err = btmtk_usb_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
return err;
@@ -3345,7 +3077,7 @@ static int btusb_mtk_shutdown(struct hci_dev *hdev)
wmt_params.data = ¶m;
wmt_params.status = NULL;
- err = btusb_mtk_hci_wmt_sync(hdev, &wmt_params);
+ err = btmtk_usb_hci_wmt_sync(hdev, &wmt_params);
if (err < 0) {
bt_dev_err(hdev, "Failed to send wmt func ctrl (%d)", err);
return err;
@@ -4425,7 +4157,7 @@ static int btusb_probe(struct usb_interface *intf,
data->recv_event = btusb_recv_event_realtek;
} else if (id->driver_info & BTUSB_MEDIATEK) {
/* Allocate extra space for Mediatek device */
- priv_size += sizeof(struct btmediatek_data);
+ priv_size += sizeof(struct btmtk_data);
}
data->recv_acl = hci_recv_frame;
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index 85baba91aaa9..573be8c3b4dc 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -194,7 +194,15 @@ void hci_uart_init_work(struct work_struct *work)
err = hci_register_dev(hu->hdev);
if (err < 0) {
BT_ERR("Can't register HCI device");
+
+ percpu_down_write(&hu->proto_lock);
clear_bit(HCI_UART_PROTO_READY, &hu->flags);
+ percpu_up_write(&hu->proto_lock);
+
+ /* Safely cancel work after clearing flags */
+ cancel_work_sync(&hu->write_work);
+
+ /* Close protocol before freeing hdev */
hu->proto->close(hu);
hdev = hu->hdev;
hu->hdev = NULL;
@@ -263,8 +271,12 @@ static int hci_uart_open(struct hci_dev *hdev)
/* Close device */
static int hci_uart_close(struct hci_dev *hdev)
{
+ struct hci_uart *hu = hci_get_drvdata(hdev);
+
BT_DBG("hdev %p", hdev);
+ cancel_work_sync(&hu->write_work);
+
hci_uart_flush(hdev);
hdev->flush = NULL;
return 0;
@@ -528,6 +540,7 @@ static void hci_uart_tty_close(struct tty_struct *tty)
{
struct hci_uart *hu = tty->disc_data;
struct hci_dev *hdev;
+ bool proto_ready;
BT_DBG("tty %p", tty);
@@ -537,24 +550,38 @@ static void hci_uart_tty_close(struct tty_struct *tty)
if (!hu)
return;
- hdev = hu->hdev;
- if (hdev)
- hci_uart_close(hdev);
+ /* Wait for init_ready to finish to prevent registration races */
+ cancel_work_sync(&hu->init_ready);
- if (test_bit(HCI_UART_PROTO_READY, &hu->flags)) {
+ proto_ready = test_bit(HCI_UART_PROTO_READY, &hu->flags);
+ if (proto_ready) {
percpu_down_write(&hu->proto_lock);
clear_bit(HCI_UART_PROTO_READY, &hu->flags);
percpu_up_write(&hu->proto_lock);
+ }
- cancel_work_sync(&hu->init_ready);
- cancel_work_sync(&hu->write_work);
+ /*
+ * Unconditionally cancel write_work AFTER clearing PROTO_READY.
+ * This ensures that concurrent protocol timers cannot requeue
+ * write_work via hci_uart_tx_wakeup(), permanently preventing
+ * double-free races and UAFs.
+ */
+ cancel_work_sync(&hu->write_work);
+
+ hdev = hu->hdev;
+ if (hdev)
+ hci_uart_close(hdev); /* proto->flush is safely skipped */
+ if (proto_ready) {
if (hdev) {
if (test_bit(HCI_UART_REGISTERED, &hu->flags))
hci_unregister_dev(hdev);
- hci_free_dev(hdev);
}
+ /* Close protocol before freeing hdev (intrinsically purges queues) */
hu->proto->close(hu);
+
+ if (hdev)
+ hci_free_dev(hdev);
}
clear_bit(HCI_UART_PROTO_SET, &hu->flags);
@@ -622,11 +649,12 @@ static void hci_uart_tty_receive(struct tty_struct *tty, const u8 *data,
* tty caller
*/
hu->proto->recv(hu, data, count);
- percpu_up_read(&hu->proto_lock);
if (hu->hdev)
hu->hdev->stat.byte_rx += count;
+ percpu_up_read(&hu->proto_lock);
+
tty_unthrottle(tty);
}
@@ -692,6 +720,10 @@ static int hci_uart_register_dev(struct hci_uart *hu)
percpu_down_write(&hu->proto_lock);
clear_bit(HCI_UART_PROTO_INIT, &hu->flags);
percpu_up_write(&hu->proto_lock);
+ /* Cancel work after clearing flags */
+ cancel_work_sync(&hu->write_work);
+
+ /* Close protocol before freeing hdev */
hu->proto->close(hu);
hu->hdev = NULL;
hci_free_dev(hdev);
diff --git a/drivers/bus/simple-pm-bus.c b/drivers/bus/simple-pm-bus.c
index aafcc481de91..cb71774400d4 100644
--- a/drivers/bus/simple-pm-bus.c
+++ b/drivers/bus/simple-pm-bus.c
@@ -36,7 +36,7 @@ static int simple_pm_bus_probe(struct platform_device *pdev)
* that's not listed in simple_pm_bus_of_match. We don't want to do any
* of the simple-pm-bus tasks for these devices, so return early.
*/
- if (pdev->driver_override)
+ if (device_has_driver_override(&pdev->dev))
return 0;
match = of_match_device(dev->driver->of_match_table, dev);
@@ -78,7 +78,7 @@ static int simple_pm_bus_remove(struct platform_device *pdev)
{
const void *data = of_device_get_match_data(&pdev->dev);
- if (pdev->driver_override || data)
+ if (device_has_driver_override(&pdev->dev) || data)
return 0;
dev_dbg(&pdev->dev, "%s\n", __func__);
diff --git a/drivers/clk/imx/clk-scu.c b/drivers/clk/imx/clk-scu.c
index 564f549ec204..3a68576cdae7 100644
--- a/drivers/clk/imx/clk-scu.c
+++ b/drivers/clk/imx/clk-scu.c
@@ -700,8 +700,7 @@ struct clk_hw *imx_clk_scu_alloc_dev(const char *name,
return ERR_PTR(ret);
}
- ret = driver_set_override(&pdev->dev, &pdev->driver_override,
- "imx-scu-clk", strlen("imx-scu-clk"));
+ ret = device_set_driver_override(&pdev->dev, "imx-scu-clk");
if (ret) {
platform_device_put(pdev);
return ERR_PTR(ret);
diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
index d885e1381072..31e61602e770 100644
--- a/drivers/firmware/arm_ffa/bus.c
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -24,6 +24,8 @@ static int ffa_device_match(struct device *dev, struct device_driver *drv)
id_table = to_ffa_driver(drv)->id_table;
ffa_dev = to_ffa_dev(dev);
+ if (!id_table)
+ return 0;
while (!uuid_is_null(&id_table->uuid)) {
/*
@@ -107,7 +109,7 @@ int ffa_driver_register(struct ffa_driver *driver, struct module *owner,
{
int ret;
- if (!driver->probe)
+ if (!driver->probe || !driver->id_table)
return -EINVAL;
driver->driver.bus = &ffa_bus_type;
diff --git a/drivers/firmware/arm_ffa/driver.c b/drivers/firmware/arm_ffa/driver.c
index 488f8345dd1b..ece91d8d820b 100644
--- a/drivers/firmware/arm_ffa/driver.c
+++ b/drivers/firmware/arm_ffa/driver.c
@@ -743,7 +743,7 @@ static int __init ffa_init(void)
drv_info->rx_buffer = alloc_pages_exact(RXTX_BUFFER_SIZE, GFP_KERNEL);
if (!drv_info->rx_buffer) {
ret = -ENOMEM;
- goto free_pages;
+ goto free_drv_info;
}
drv_info->tx_buffer = alloc_pages_exact(RXTX_BUFFER_SIZE, GFP_KERNEL);
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index ef55e3851b36..493b6b07bdc3 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -371,21 +371,11 @@ static void __init efi_debugfs_init(void)
static inline void efi_debugfs_init(void) {}
#endif
-/*
- * We register the efi subsystem with the firmware subsystem and the
- * efivars subsystem with the efi subsystem, if the system was booted with
- * EFI.
- */
-static int __init efisubsys_init(void)
+static int __init efipostcore_init(void)
{
- int error;
-
if (!efi_enabled(EFI_RUNTIME_SERVICES))
efi.runtime_supported_mask = 0;
- if (!efi_enabled(EFI_BOOT))
- return 0;
-
if (efi.runtime_supported_mask) {
/*
* Since we process only one efi_runtime_service() at a time, an
@@ -397,9 +387,23 @@ static int __init efisubsys_init(void)
pr_err("Creating efi_rts_wq failed, EFI runtime services disabled.\n");
clear_bit(EFI_RUNTIME_SERVICES, &efi.flags);
efi.runtime_supported_mask = 0;
- return 0;
}
}
+ return 0;
+}
+postcore_initcall(efipostcore_init);
+
+/*
+ * We register the efi subsystem with the firmware subsystem and the
+ * efivars subsystem with the efi subsystem, if the system was booted with
+ * EFI.
+ */
+static int __init efisubsys_init(void)
+{
+ int error;
+
+ if (!efi_enabled(EFI_BOOT))
+ return 0;
if (efi_rt_services_supported(EFI_RT_SUPPORTED_TIME_SERVICES))
platform_device_register_simple("rtc-efi", 0, NULL, 0);
diff --git a/drivers/gpio/gpiolib-cdev.c b/drivers/gpio/gpiolib-cdev.c
index 545998e9f6ad..c6689f66a2d2 100644
--- a/drivers/gpio/gpiolib-cdev.c
+++ b/drivers/gpio/gpiolib-cdev.c
@@ -16,7 +16,6 @@
#include <linux/hte.h>
#include <linux/interrupt.h>
#include <linux/irqreturn.h>
-#include <linux/kernel.h>
#include <linux/kfifo.h>
#include <linux/module.h>
#include <linux/mutex.h>
@@ -25,6 +24,7 @@
#include <linux/rbtree.h>
#include <linux/seq_file.h>
#include <linux/spinlock.h>
+#include <linux/string.h>
#include <linux/timekeeping.h>
#include <linux/uaccess.h>
#include <linux/workqueue.h>
@@ -1374,6 +1374,7 @@ static int gpio_v2_line_flags_validate(u64 flags)
static int gpio_v2_line_config_validate(struct gpio_v2_line_config *lc,
unsigned int num_lines)
{
+ size_t unused_attrs;
unsigned int i;
u64 flags;
int ret;
@@ -1381,9 +1382,21 @@ static int gpio_v2_line_config_validate(struct gpio_v2_line_config *lc,
if (lc->num_attrs > GPIO_V2_LINE_NUM_ATTRS_MAX)
return -EINVAL;
- if (memchr_inv(lc->padding, 0, sizeof(lc->padding)))
+ unused_attrs = GPIO_V2_LINE_NUM_ATTRS_MAX - lc->num_attrs;
+
+ if (!mem_is_zero(lc->padding, sizeof(lc->padding)))
return -EINVAL;
+ for (i = 0; i < lc->num_attrs; i++) {
+ if (lc->attrs[i].attr.padding != 0)
+ return -EINVAL;
+ }
+
+ if (unused_attrs) {
+ if (!mem_is_zero(&lc->attrs[lc->num_attrs], unused_attrs * sizeof(*lc->attrs)))
+ return -EINVAL;
+ }
+
for (i = 0; i < num_lines; i++) {
flags = gpio_v2_line_config_flags(lc, i);
ret = gpio_v2_line_flags_validate(flags);
@@ -1825,7 +1838,7 @@ static int linereq_create(struct gpio_device *gdev, void __user *ip)
if ((ulr.num_lines == 0) || (ulr.num_lines > GPIO_V2_LINES_MAX))
return -EINVAL;
- if (memchr_inv(ulr.padding, 0, sizeof(ulr.padding)))
+ if (!mem_is_zero(ulr.padding, sizeof(ulr.padding)))
return -EINVAL;
lc = &ulr.config;
@@ -2619,7 +2632,7 @@ static int lineinfo_get(struct gpio_chardev_data *cdev, void __user *ip,
if (copy_from_user(&lineinfo, ip, sizeof(lineinfo)))
return -EFAULT;
- if (memchr_inv(lineinfo.padding, 0, sizeof(lineinfo.padding)))
+ if (!mem_is_zero(lineinfo.padding, sizeof(lineinfo.padding)))
return -EINVAL;
desc = gpiochip_get_desc(cdev->gdev->chip, lineinfo.offset);
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
index c0a705888cb5..edf17c69c1be 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
@@ -488,6 +488,10 @@ static enum bp_result get_gpio_i2c_info(
- sizeof(struct atom_common_table_header))
/ sizeof(struct atom_gpio_pin_assignment);
+ if (!bios_get_image(&bp->base, DATA_TABLES(gpio_pin_lut),
+ le16_to_cpu(header->table_header.structuresize)))
+ return BP_RESULT_BADBIOSTABLE;
+
pin = (struct atom_gpio_pin_assignment *) header->gpio_pin;
for (table_index = 0; table_index < count; table_index++) {
@@ -677,6 +681,11 @@ static enum bp_result bios_parser_get_gpio_pin_info(
count = (le16_to_cpu(header->table_header.structuresize)
- sizeof(struct atom_common_table_header))
/ sizeof(struct atom_gpio_pin_assignment);
+
+ if (!bios_get_image(&bp->base, DATA_TABLES(gpio_pin_lut),
+ le16_to_cpu(header->table_header.structuresize)))
+ return BP_RESULT_BADBIOSTABLE;
+
for (i = 0; i < count; ++i) {
if (header->gpio_pin[i].gpio_id != gpio_id)
continue;
diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.c
index adc710fe4a45..d3f149192451 100644
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser_helper.c
@@ -37,10 +37,13 @@ uint8_t *bios_get_image(struct dc_bios *bp,
uint32_t offset,
uint32_t size)
{
- if (bp->bios && offset + size < bp->bios_size)
- return bp->bios + offset;
- else
+ if (!bp->bios)
return NULL;
+
+ if (offset > bp->bios_size || size > bp->bios_size - offset)
+ return NULL;
+
+ return bp->bios + offset;
}
#include "reg_helper.h"
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 31c53491b837..bea18f450ac9 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -4965,7 +4965,11 @@ bool dc_process_dmub_aux_transfer_async(struct dc *dc,
uint8_t action;
union dmub_rb_cmd cmd = {0};
- ASSERT(payload->length <= 16);
+ if (link_index >= dc->link_count || !dc->links[link_index])
+ return false;
+
+ if (payload->length > sizeof(cmd.dp_aux_access.aux_control.dpaux.data))
+ return false;
cmd.dp_aux_access.header.type = DMUB_CMD__DP_AUX_ACCESS;
cmd.dp_aux_access.header.payload_bytes = 0;
diff --git a/drivers/gpu/drm/bridge/chipone-icn6211.c b/drivers/gpu/drm/bridge/chipone-icn6211.c
index 5e295f86f2a7..f4741be16ae2 100644
--- a/drivers/gpu/drm/bridge/chipone-icn6211.c
+++ b/drivers/gpu/drm/bridge/chipone-icn6211.c
@@ -757,7 +757,9 @@ static int chipone_i2c_probe(struct i2c_client *client)
dev_set_drvdata(dev, icn);
i2c_set_clientdata(client, icn);
- drm_bridge_add(&icn->bridge);
+ ret = devm_drm_bridge_add(dev, &icn->bridge);
+ if (ret)
+ return ret;
return chipone_dsi_host_attach(icn);
}
diff --git a/drivers/gpu/drm/bridge/ite-it66121.c b/drivers/gpu/drm/bridge/ite-it66121.c
index 2381cd1cba87..588c7df4ff8d 100644
--- a/drivers/gpu/drm/bridge/ite-it66121.c
+++ b/drivers/gpu/drm/bridge/ite-it66121.c
@@ -1566,6 +1566,11 @@ static int it66121_probe(struct i2c_client *client)
return ret;
}
+ ctx->gpio_reset = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(ctx->gpio_reset))
+ return dev_err_probe(dev, PTR_ERR(ctx->gpio_reset),
+ "Failed to get reset GPIO\n");
+
it66121_hw_reset(ctx);
ctx->regmap = devm_regmap_init_i2c(client, &it66121_regmap_config);
diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
index 460db3c8a08c..d8d67170f23e 100644
--- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
+++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c
@@ -302,7 +302,6 @@ static void ge_b850v3_lvds_remove(void)
goto out;
drm_bridge_remove(&ge_b850v3_lvds_ptr->bridge);
-
ge_b850v3_lvds_ptr = NULL;
out:
mutex_unlock(&ge_b850v3_lvds_dev_mutex);
@@ -312,6 +311,7 @@ static int ge_b850v3_register(void)
{
struct i2c_client *stdp4028_i2c = ge_b850v3_lvds_ptr->stdp4028_i2c;
struct device *dev = &stdp4028_i2c->dev;
+ int ret;
/* drm bridge initialization */
ge_b850v3_lvds_ptr->bridge.funcs = &ge_b850v3_lvds_funcs;
@@ -329,11 +329,15 @@ static int ge_b850v3_register(void)
if (!stdp4028_i2c->irq)
return 0;
- return devm_request_threaded_irq(&stdp4028_i2c->dev,
- stdp4028_i2c->irq, NULL,
- ge_b850v3_lvds_irq_handler,
- IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
- "ge-b850v3-lvds-dp", ge_b850v3_lvds_ptr);
+ ret = devm_request_threaded_irq(&stdp4028_i2c->dev,
+ stdp4028_i2c->irq, NULL,
+ ge_b850v3_lvds_irq_handler,
+ IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+ "ge-b850v3-lvds-dp", ge_b850v3_lvds_ptr);
+ if (ret)
+ drm_bridge_remove(&ge_b850v3_lvds_ptr->bridge);
+
+ return ret;
}
static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c)
diff --git a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
index 4d55e3cf570f..a966a03167cc 100644
--- a/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
+++ b/drivers/gpu/drm/msm/disp/msm_disp_snapshot_util.c
@@ -9,7 +9,7 @@
#include "msm_disp_snapshot.h"
-static void msm_disp_state_dump_regs(u32 **reg, u32 aligned_len, void __iomem *base_addr)
+static void msm_disp_state_dump_regs(u32 **reg, u32 len, void __iomem *base_addr)
{
u32 len_padded;
u32 num_rows;
@@ -19,11 +19,11 @@ static void msm_disp_state_dump_regs(u32 **reg, u32 aligned_len, void __iomem *b
void __iomem *end_addr;
int i;
- len_padded = aligned_len * REG_DUMP_ALIGN;
- num_rows = aligned_len / REG_DUMP_ALIGN;
+ len_padded = round_up(len, REG_DUMP_ALIGN);
+ num_rows = DIV_ROUND_UP(len, REG_DUMP_ALIGN);
addr = base_addr;
- end_addr = base_addr + aligned_len;
+ end_addr = base_addr + len;
if (!(*reg))
*reg = kvzalloc(len_padded, GFP_KERNEL);
@@ -51,8 +51,8 @@ static void msm_disp_state_dump_regs(u32 **reg, u32 aligned_len, void __iomem *b
static void msm_disp_state_print_regs(const u32 *dump_addr, u32 len,
void __iomem *base_addr, struct drm_printer *p)
{
+ void __iomem *addr, *end_addr;
int i;
- void __iomem *addr;
u32 num_rows;
if (!dump_addr) {
@@ -61,6 +61,7 @@ static void msm_disp_state_print_regs(const u32 *dump_addr, u32 len,
}
addr = base_addr;
+ end_addr = base_addr + len;
num_rows = len / REG_DUMP_ALIGN;
for (i = 0; i < num_rows; i++) {
@@ -70,6 +71,17 @@ static void msm_disp_state_print_regs(const u32 *dump_addr, u32 len,
dump_addr[i * 4 + 2], dump_addr[i * 4 + 3]);
addr += REG_DUMP_ALIGN;
}
+
+ if (addr != end_addr) {
+ drm_printf(p, "0x%lx : %08x",
+ (unsigned long)(addr - base_addr),
+ dump_addr[i * 4]);
+ if (addr + 0x4 < end_addr)
+ drm_printf(p, " %08x", dump_addr[i * 4 + 1]);
+ if (addr + 0x8 < end_addr)
+ drm_printf(p, " %08x", dump_addr[i * 4 + 2]);
+ drm_printf(p, "\n");
+ }
}
void msm_disp_state_print(struct msm_disp_state *state, struct drm_printer *p)
@@ -189,7 +201,7 @@ void msm_disp_snapshot_add_block(struct msm_disp_state *disp_state, u32 len,
va_end(va);
INIT_LIST_HEAD(&new_blk->node);
- new_blk->size = ALIGN(len, REG_DUMP_ALIGN);
+ new_blk->size = len;
new_blk->base_addr = base_addr;
msm_disp_state_dump_regs(&new_blk->state, new_blk->size, base_addr);
diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c
index 771ac3456103..f5ac0e20665f 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_host.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_host.c
@@ -1929,6 +1929,7 @@ int msm_dsi_host_init(struct msm_dsi *msm_dsi)
/* fixup base address by io offset */
msm_host->ctrl_base += cfg->io_offset;
+ msm_host->ctrl_size -= cfg->io_offset;
ret = devm_regulator_bulk_get_const(&pdev->dev, cfg->num_regulators,
cfg->regulator_data,
diff --git a/drivers/gpu/drm/msm/msm_iommu.c b/drivers/gpu/drm/msm/msm_iommu.c
index d5512037c38b..10d068fdfebd 100644
--- a/drivers/gpu/drm/msm/msm_iommu.c
+++ b/drivers/gpu/drm/msm/msm_iommu.c
@@ -362,14 +362,15 @@ static int msm_iommu_map(struct msm_mmu *mmu, uint64_t iova,
struct sg_table *sgt, size_t len, int prot)
{
struct msm_iommu *iommu = to_msm_iommu(mmu);
- size_t ret;
+ ssize_t ret;
/* The arm-smmu driver expects the addresses to be sign extended */
if (iova & BIT_ULL(48))
iova |= GENMASK_ULL(63, 49);
ret = iommu_map_sgtable(iommu->domain, iova, sgt, prot);
- WARN_ON(!ret);
+ if (ret < 0)
+ return ret;
return (ret == len) ? 0 : -EINVAL;
}
diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.h b/drivers/gpu/drm/virtio/virtgpu_drv.h
index 61fd37f95fbd..9f9ded45cd6a 100644
--- a/drivers/gpu/drm/virtio/virtgpu_drv.h
+++ b/drivers/gpu/drm/virtio/virtgpu_drv.h
@@ -313,6 +313,7 @@ virtio_gpu_array_from_handles(struct drm_file *drm_file, u32 *handles, u32 nents
void virtio_gpu_array_add_obj(struct virtio_gpu_object_array *objs,
struct drm_gem_object *obj);
int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs);
+int virtio_gpu_lock_one_resv_uninterruptible(struct virtio_gpu_object_array *objs);
void virtio_gpu_array_unlock_resv(struct virtio_gpu_object_array *objs);
void virtio_gpu_array_add_fence(struct virtio_gpu_object_array *objs,
struct dma_fence *fence);
diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
index 7db48d17ee3a..2e75cdeb49b3 100644
--- a/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -236,6 +236,23 @@ int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs)
return ret;
}
+int virtio_gpu_lock_one_resv_uninterruptible(struct virtio_gpu_object_array *objs)
+{
+ int ret;
+
+ if (objs->nents != 1)
+ return -EINVAL;
+
+ dma_resv_lock(objs->objs[0]->resv, NULL);
+
+ ret = dma_resv_reserve_fences(objs->objs[0]->resv, 1);
+ if (ret) {
+ virtio_gpu_array_unlock_resv(objs);
+ return ret;
+ }
+ return 0;
+}
+
void virtio_gpu_array_unlock_resv(struct virtio_gpu_object_array *objs)
{
if (objs->nents == 1) {
diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c
index 36de73e03bbf..5c173721759a 100644
--- a/drivers/gpu/drm/virtio/virtgpu_plane.c
+++ b/drivers/gpu/drm/virtio/virtgpu_plane.c
@@ -168,7 +168,10 @@ static void virtio_gpu_resource_flush(struct drm_plane *plane,
if (!objs)
return;
virtio_gpu_array_add_obj(objs, vgfb->base.obj[0]);
- virtio_gpu_array_lock_resv(objs);
+ if (virtio_gpu_lock_one_resv_uninterruptible(objs)) {
+ virtio_gpu_array_put_free(objs);
+ return;
+ }
virtio_gpu_cmd_resource_flush(vgdev, bo->hw_res_handle, x, y,
width, height, objs,
vgplane_st->fence);
@@ -339,7 +342,10 @@ static void virtio_gpu_cursor_plane_update(struct drm_plane *plane,
if (!objs)
return;
virtio_gpu_array_add_obj(objs, vgfb->base.obj[0]);
- virtio_gpu_array_lock_resv(objs);
+ if (virtio_gpu_lock_one_resv_uninterruptible(objs)) {
+ virtio_gpu_array_put_free(objs);
+ return;
+ }
virtio_gpu_cmd_transfer_to_host_2d
(vgdev, 0,
plane->state->crtc_w,
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index d9e33dde8989..9d396d2e534d 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -234,7 +234,7 @@ static const struct hid_device_id hid_quirks[] = {
* used as a driver. See hid_scan_report().
*/
static const struct hid_device_id hid_have_special_driver[] = {
-#if IS_ENABLED(CONFIG_APPLEDISPLAY)
+#if IS_ENABLED(CONFIG_USB_APPLEDISPLAY)
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x9218) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x9219) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, 0x921c) },
diff --git a/drivers/hid/hid-uclogic-core.c b/drivers/hid/hid-uclogic-core.c
index 45de01dea4b1..d4cf8846f326 100644
--- a/drivers/hid/hid-uclogic-core.c
+++ b/drivers/hid/hid-uclogic-core.c
@@ -142,7 +142,9 @@ static int uclogic_input_configured(struct hid_device *hdev,
suffix = "System Control";
break;
}
- } else {
+ }
+
+ if (suffix) {
hi->input->name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
"%s %s", hdev->name, suffix);
if (!hi->input->name)
diff --git a/drivers/hwmon/pmbus/adm1266.c b/drivers/hwmon/pmbus/adm1266.c
index ed0a7b9fae4b..a8690d6c9b9c 100644
--- a/drivers/hwmon/pmbus/adm1266.c
+++ b/drivers/hwmon/pmbus/adm1266.c
@@ -46,6 +46,7 @@
#define ADM1266_BLACKBOX_OFFSET 0
#define ADM1266_BLACKBOX_SIZE 64
+#define ADM1266_BLACKBOX_MAX_RECORDS 32
#define ADM1266_PMBUS_BLOCK_MAX 255
@@ -60,7 +61,7 @@ struct adm1266_data {
u8 *dev_mem;
struct mutex buf_mutex;
u8 write_buf[ADM1266_PMBUS_BLOCK_MAX + 1] ____cacheline_aligned;
- u8 read_buf[ADM1266_PMBUS_BLOCK_MAX + 1] ____cacheline_aligned;
+ u8 read_buf[ADM1266_PMBUS_BLOCK_MAX + 2] ____cacheline_aligned;
};
static const struct nvmem_cell_info adm1266_nvmem_cells[] = {
@@ -175,6 +176,8 @@ static int adm1266_gpio_get(struct gpio_chip *chip, unsigned int offset)
ret = i2c_smbus_read_block_data(data->client, pmbus_cmd, read_buf);
if (ret < 0)
return ret;
+ if (ret < 2)
+ return -EIO;
pins_status = read_buf[0] + (read_buf[1] << 8);
if (offset < ADM1266_GPIO_NR)
@@ -195,6 +198,8 @@ static int adm1266_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask
ret = i2c_smbus_read_block_data(data->client, ADM1266_GPIO_STATUS, read_buf);
if (ret < 0)
return ret;
+ if (ret < 2)
+ return -EIO;
status = read_buf[0] + (read_buf[1] << 8);
@@ -207,11 +212,12 @@ static int adm1266_gpio_get_multiple(struct gpio_chip *chip, unsigned long *mask
ret = i2c_smbus_read_block_data(data->client, ADM1266_PDIO_STATUS, read_buf);
if (ret < 0)
return ret;
+ if (ret < 2)
+ return -EIO;
status = read_buf[0] + (read_buf[1] << 8);
- *bits = 0;
- for_each_set_bit_from(gpio_nr, mask, ADM1266_GPIO_NR + ADM1266_PDIO_STATUS) {
+ for_each_set_bit_from(gpio_nr, mask, ADM1266_GPIO_NR + ADM1266_PDIO_NR) {
if (test_bit(gpio_nr - ADM1266_GPIO_NR, &status))
set_bit(gpio_nr, bits);
}
@@ -347,9 +353,10 @@ static void adm1266_init_debugfs(struct adm1266_data *data)
static int adm1266_nvmem_read_blackbox(struct adm1266_data *data, u8 *read_buff)
{
+ u8 record[ADM1266_PMBUS_BLOCK_MAX];
int record_count;
char index;
- u8 buf[5];
+ u8 buf[I2C_SMBUS_BLOCK_MAX];
int ret;
ret = i2c_smbus_read_block_data(data->client, ADM1266_BLACKBOX_INFO, buf);
@@ -360,15 +367,18 @@ static int adm1266_nvmem_read_blackbox(struct adm1266_data *data, u8 *read_buff)
return -EIO;
record_count = buf[3];
+ if (record_count > ADM1266_BLACKBOX_MAX_RECORDS)
+ return -EIO;
for (index = 0; index < record_count; index++) {
- ret = adm1266_pmbus_block_xfer(data, ADM1266_READ_BLACKBOX, 1, &index, read_buff);
+ ret = adm1266_pmbus_block_xfer(data, ADM1266_READ_BLACKBOX, 1, &index, record);
if (ret < 0)
return ret;
if (ret != ADM1266_BLACKBOX_SIZE)
return -EIO;
+ memcpy(read_buff, record, ADM1266_BLACKBOX_SIZE);
read_buff += ADM1266_BLACKBOX_SIZE;
}
@@ -432,7 +442,7 @@ static int adm1266_set_rtc(struct adm1266_data *data)
char write_buf[6];
int i;
- kt = ktime_get_seconds();
+ kt = ktime_get_real_seconds();
memset(write_buf, 0, sizeof(write_buf));
@@ -462,20 +472,20 @@ static int adm1266_probe(struct i2c_client *client)
crc8_populate_msb(pmbus_crc_table, 0x7);
mutex_init(&data->buf_mutex);
- ret = adm1266_config_gpio(data);
+ ret = adm1266_set_rtc(data);
if (ret < 0)
return ret;
- ret = adm1266_set_rtc(data);
- if (ret < 0)
+ ret = pmbus_do_probe(client, &data->info);
+ if (ret)
return ret;
ret = adm1266_config_nvmem(data);
if (ret < 0)
return ret;
- ret = pmbus_do_probe(client, &data->info);
- if (ret)
+ ret = adm1266_config_gpio(data);
+ if (ret < 0)
return ret;
adm1266_init_debugfs(data);
diff --git a/drivers/infiniband/sw/siw/siw_qp_rx.c b/drivers/infiniband/sw/siw/siw_qp_rx.c
index e2ad2425d57d..e4fa61a0c6ca 100644
--- a/drivers/infiniband/sw/siw/siw_qp_rx.c
+++ b/drivers/infiniband/sw/siw/siw_qp_rx.c
@@ -1101,6 +1101,21 @@ static int siw_get_hdr(struct siw_rx_stream *srx)
return -EAGAIN;
}
+ /*
+ * Peer-controlled mpa_len must not underflow srx->fpdu_part_rem
+ * in siw_tcp_rx_data(); a negative value flows as a signed copy
+ * length into siw_check_mem() and skb_copy_bits().
+ */
+ if (unlikely(be16_to_cpu(c_hdr->mpa_len) + MPA_HDR_SIZE <
+ iwarp_pktinfo[opcode].hdr_len)) {
+ pr_warn_ratelimited("siw: short mpa_len %u for opcode %u (hdr_len %u)\n",
+ be16_to_cpu(c_hdr->mpa_len), opcode,
+ iwarp_pktinfo[opcode].hdr_len);
+ siw_init_terminate(rx_qp(srx), TERM_ERROR_LAYER_LLP,
+ LLP_ETYPE_MPA, LLP_ECODE_FPDU_START, 0);
+ return -EINVAL;
+ }
+
/*
* DDP/RDMAP header receive completed. Check if the current
* DDP segment starts a new RDMAP message or continues a previously
diff --git a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
index 3f305e694fe8..1b1c6ea4ee5a 100644
--- a/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
+++ b/drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c
@@ -295,8 +295,8 @@ int rtrs_srv_create_path_files(struct rtrs_srv_path *srv_path)
put_kobj:
kobject_del(&srv_path->kobj);
destroy_root:
- kobject_put(&srv_path->kobj);
rtrs_srv_destroy_once_sysfs_root_folders(srv_path);
+ kobject_put(&srv_path->kobj);
return err;
}
diff --git a/drivers/irqchip/irq-ath79-cpu.c b/drivers/irqchip/irq-ath79-cpu.c
index 923e4bba3776..9b7273a7f8ce 100644
--- a/drivers/irqchip/irq-ath79-cpu.c
+++ b/drivers/irqchip/irq-ath79-cpu.c
@@ -85,10 +85,3 @@ static int __init ar79_cpu_intc_of_init(
}
IRQCHIP_DECLARE(ar79_cpu_intc, "qca,ar7100-cpu-intc",
ar79_cpu_intc_of_init);
-
-void __init ath79_cpu_irq_init(unsigned irq_wb_chan2, unsigned irq_wb_chan3)
-{
- irq_wb_chan[2] = irq_wb_chan2;
- irq_wb_chan[3] = irq_wb_chan3;
- mips_cpu_irq_init();
-}
diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c
index 2d18a03d9274..8d889bc5f3d1 100644
--- a/drivers/net/dsa/mt7530.c
+++ b/drivers/net/dsa/mt7530.c
@@ -880,12 +880,16 @@ mt7530_set_ageing_time(struct dsa_switch *ds, unsigned int msecs)
unsigned int age_count;
unsigned int age_unit;
- /* Applied timer is (AGE_CNT + 1) * (AGE_UNIT + 1) seconds */
- if (secs < 1 || secs > (AGE_CNT_MAX + 1) * (AGE_UNIT_MAX + 1))
- return -ERANGE;
-
- /* iterate through all possible age_count to find the closest pair */
- for (tmp_age_count = 0; tmp_age_count <= AGE_CNT_MAX; ++tmp_age_count) {
+ /* Applied timer is (AGE_CNT + 1) * (AGE_UNIT + 1) seconds.
+ * The DSA core has already validated the range using
+ * ds->ageing_time_min and ds->ageing_time_max.
+ *
+ * Iterate through all possible age_count values to find the closest
+ * pair. Start from 1 because the per-entry aging counter is
+ * initialized to AGE_CNT and a value of 0 means the entry will
+ * never be aged out.
+ */
+ for (tmp_age_count = 1; tmp_age_count <= AGE_CNT_MAX; ++tmp_age_count) {
unsigned int tmp_age_unit = secs / (tmp_age_count + 1) - 1;
if (tmp_age_unit <= AGE_UNIT_MAX) {
@@ -1170,46 +1174,41 @@ static void mt7530_setup_port5(struct dsa_switch *ds, phy_interface_t interface)
static void
mt753x_trap_frames(struct mt7530_priv *priv)
{
- /* Trap 802.1X PAE frames and BPDUs to the CPU port(s) and egress them
- * VLAN-untagged.
+ /* Trap 802.1X PAE frames and BPDUs to the CPU port(s) and egress
+ * them with the EG_TAG attribute set to disabled (system default)
+ * so that any VLAN tags in the frame are not modified by the
+ * switch egress VLAN tag processing. This preserves VLAN tags
+ * for reception on VLAN sub-interfaces.
*/
mt7530_rmw(priv, MT753X_BPC,
- MT753X_PAE_BPDU_FR | MT753X_PAE_EG_TAG_MASK |
- MT753X_PAE_PORT_FW_MASK | MT753X_BPDU_EG_TAG_MASK |
- MT753X_BPDU_PORT_FW_MASK,
- MT753X_PAE_BPDU_FR |
- MT753X_PAE_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
- MT753X_PAE_PORT_FW(MT753X_BPDU_CPU_ONLY) |
- MT753X_BPDU_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
- MT753X_BPDU_CPU_ONLY);
-
- /* Trap frames with :01 and :02 MAC DAs to the CPU port(s) and egress
- * them VLAN-untagged.
+ PAE_BPDU_FR | PAE_EG_TAG_MASK | PAE_PORT_FW_MASK |
+ BPDU_EG_TAG_MASK | BPDU_PORT_FW_MASK,
+ PAE_BPDU_FR | PAE_EG_TAG(MT7530_VLAN_EG_DISABLED) |
+ PAE_PORT_FW(TO_CPU_FW_CPU_ONLY) |
+ BPDU_EG_TAG(MT7530_VLAN_EG_DISABLED) |
+ TO_CPU_FW_CPU_ONLY);
+
+ /* Trap frames with :01 and :02 MAC DAs to the CPU port(s) and
+ * egress them with EG_TAG disabled.
*/
mt7530_rmw(priv, MT753X_RGAC1,
- MT753X_R02_BPDU_FR | MT753X_R02_EG_TAG_MASK |
- MT753X_R02_PORT_FW_MASK | MT753X_R01_BPDU_FR |
- MT753X_R01_EG_TAG_MASK | MT753X_R01_PORT_FW_MASK,
- MT753X_R02_BPDU_FR |
- MT753X_R02_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
- MT753X_R02_PORT_FW(MT753X_BPDU_CPU_ONLY) |
- MT753X_R01_BPDU_FR |
- MT753X_R01_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
- MT753X_BPDU_CPU_ONLY);
-
- /* Trap frames with :03 and :0E MAC DAs to the CPU port(s) and egress
- * them VLAN-untagged.
+ R02_BPDU_FR | R02_EG_TAG_MASK | R02_PORT_FW_MASK |
+ R01_BPDU_FR | R01_EG_TAG_MASK | R01_PORT_FW_MASK,
+ R02_BPDU_FR | R02_EG_TAG(MT7530_VLAN_EG_DISABLED) |
+ R02_PORT_FW(TO_CPU_FW_CPU_ONLY) | R01_BPDU_FR |
+ R01_EG_TAG(MT7530_VLAN_EG_DISABLED) |
+ TO_CPU_FW_CPU_ONLY);
+
+ /* Trap frames with :03 and :0E MAC DAs to the CPU port(s) and
+ * egress them with EG_TAG disabled.
*/
mt7530_rmw(priv, MT753X_RGAC2,
- MT753X_R0E_BPDU_FR | MT753X_R0E_EG_TAG_MASK |
- MT753X_R0E_PORT_FW_MASK | MT753X_R03_BPDU_FR |
- MT753X_R03_EG_TAG_MASK | MT753X_R03_PORT_FW_MASK,
- MT753X_R0E_BPDU_FR |
- MT753X_R0E_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
- MT753X_R0E_PORT_FW(MT753X_BPDU_CPU_ONLY) |
- MT753X_R03_BPDU_FR |
- MT753X_R03_EG_TAG(MT7530_VLAN_EG_UNTAGGED) |
- MT753X_BPDU_CPU_ONLY);
+ R0E_BPDU_FR | R0E_EG_TAG_MASK | R0E_PORT_FW_MASK |
+ R03_BPDU_FR | R03_EG_TAG_MASK | R03_PORT_FW_MASK,
+ R0E_BPDU_FR | R0E_EG_TAG(MT7530_VLAN_EG_DISABLED) |
+ R0E_PORT_FW(TO_CPU_FW_CPU_ONLY) | R03_BPDU_FR |
+ R03_EG_TAG(MT7530_VLAN_EG_DISABLED) |
+ TO_CPU_FW_CPU_ONLY);
}
static int
@@ -2419,6 +2418,8 @@ mt7530_setup(struct dsa_switch *ds)
ds->assisted_learning_on_cpu_port = true;
ds->mtu_enforcement_ingress = true;
+ ds->ageing_time_min = 2 * 1000;
+ ds->ageing_time_max = (AGE_CNT_MAX + 1) * (AGE_UNIT_MAX + 1) * 1000;
if (priv->id == ID_MT7530) {
regulator_set_voltage(priv->core_pwr, 1000000, 1000000);
@@ -2598,6 +2599,8 @@ mt7531_setup_common(struct dsa_switch *ds)
ds->assisted_learning_on_cpu_port = true;
ds->mtu_enforcement_ingress = true;
+ ds->ageing_time_min = 2 * 1000;
+ ds->ageing_time_max = (AGE_CNT_MAX + 1) * (AGE_UNIT_MAX + 1) * 1000;
mt753x_trap_frames(priv);
diff --git a/drivers/net/dsa/mt7530.h b/drivers/net/dsa/mt7530.h
index 0ad52d3cbfeb..393a7cb03a43 100644
--- a/drivers/net/dsa/mt7530.h
+++ b/drivers/net/dsa/mt7530.h
@@ -67,47 +67,47 @@ enum mt753x_id {
#define MT753X_MIRROR_MASK(id) ((((id) == ID_MT7531) || ((id) == ID_MT7988)) ? \
MT7531_MIRROR_MASK : MIRROR_MASK)
-/* Registers for BPDU and PAE frame control*/
+/* Register for BPDU and PAE frame control */
#define MT753X_BPC 0x24
-#define MT753X_PAE_BPDU_FR BIT(25)
-#define MT753X_PAE_EG_TAG_MASK GENMASK(24, 22)
-#define MT753X_PAE_EG_TAG(x) FIELD_PREP(MT753X_PAE_EG_TAG_MASK, x)
-#define MT753X_PAE_PORT_FW_MASK GENMASK(18, 16)
-#define MT753X_PAE_PORT_FW(x) FIELD_PREP(MT753X_PAE_PORT_FW_MASK, x)
-#define MT753X_BPDU_EG_TAG_MASK GENMASK(8, 6)
-#define MT753X_BPDU_EG_TAG(x) FIELD_PREP(MT753X_BPDU_EG_TAG_MASK, x)
-#define MT753X_BPDU_PORT_FW_MASK GENMASK(2, 0)
-
-/* Register for :01 and :02 MAC DA frame control */
+#define PAE_BPDU_FR BIT(25)
+#define PAE_EG_TAG_MASK GENMASK(24, 22)
+#define PAE_EG_TAG(x) FIELD_PREP(PAE_EG_TAG_MASK, x)
+#define PAE_PORT_FW_MASK GENMASK(18, 16)
+#define PAE_PORT_FW(x) FIELD_PREP(PAE_PORT_FW_MASK, x)
+#define BPDU_EG_TAG_MASK GENMASK(8, 6)
+#define BPDU_EG_TAG(x) FIELD_PREP(BPDU_EG_TAG_MASK, x)
+#define BPDU_PORT_FW_MASK GENMASK(2, 0)
+
+/* Register for 01-80-C2-00-00-[01,02] MAC DA frame control */
#define MT753X_RGAC1 0x28
-#define MT753X_R02_BPDU_FR BIT(25)
-#define MT753X_R02_EG_TAG_MASK GENMASK(24, 22)
-#define MT753X_R02_EG_TAG(x) FIELD_PREP(MT753X_R02_EG_TAG_MASK, x)
-#define MT753X_R02_PORT_FW_MASK GENMASK(18, 16)
-#define MT753X_R02_PORT_FW(x) FIELD_PREP(MT753X_R02_PORT_FW_MASK, x)
-#define MT753X_R01_BPDU_FR BIT(9)
-#define MT753X_R01_EG_TAG_MASK GENMASK(8, 6)
-#define MT753X_R01_EG_TAG(x) FIELD_PREP(MT753X_R01_EG_TAG_MASK, x)
-#define MT753X_R01_PORT_FW_MASK GENMASK(2, 0)
-
-/* Register for :03 and :0E MAC DA frame control */
+#define R02_BPDU_FR BIT(25)
+#define R02_EG_TAG_MASK GENMASK(24, 22)
+#define R02_EG_TAG(x) FIELD_PREP(R02_EG_TAG_MASK, x)
+#define R02_PORT_FW_MASK GENMASK(18, 16)
+#define R02_PORT_FW(x) FIELD_PREP(R02_PORT_FW_MASK, x)
+#define R01_BPDU_FR BIT(9)
+#define R01_EG_TAG_MASK GENMASK(8, 6)
+#define R01_EG_TAG(x) FIELD_PREP(R01_EG_TAG_MASK, x)
+#define R01_PORT_FW_MASK GENMASK(2, 0)
+
+/* Register for 01-80-C2-00-00-[03,0E] MAC DA frame control */
#define MT753X_RGAC2 0x2c
-#define MT753X_R0E_BPDU_FR BIT(25)
-#define MT753X_R0E_EG_TAG_MASK GENMASK(24, 22)
-#define MT753X_R0E_EG_TAG(x) FIELD_PREP(MT753X_R0E_EG_TAG_MASK, x)
-#define MT753X_R0E_PORT_FW_MASK GENMASK(18, 16)
-#define MT753X_R0E_PORT_FW(x) FIELD_PREP(MT753X_R0E_PORT_FW_MASK, x)
-#define MT753X_R03_BPDU_FR BIT(9)
-#define MT753X_R03_EG_TAG_MASK GENMASK(8, 6)
-#define MT753X_R03_EG_TAG(x) FIELD_PREP(MT753X_R03_EG_TAG_MASK, x)
-#define MT753X_R03_PORT_FW_MASK GENMASK(2, 0)
-
-enum mt753x_bpdu_port_fw {
- MT753X_BPDU_FOLLOW_MFC,
- MT753X_BPDU_CPU_EXCLUDE = 4,
- MT753X_BPDU_CPU_INCLUDE = 5,
- MT753X_BPDU_CPU_ONLY = 6,
- MT753X_BPDU_DROP = 7,
+#define R0E_BPDU_FR BIT(25)
+#define R0E_EG_TAG_MASK GENMASK(24, 22)
+#define R0E_EG_TAG(x) FIELD_PREP(R0E_EG_TAG_MASK, x)
+#define R0E_PORT_FW_MASK GENMASK(18, 16)
+#define R0E_PORT_FW(x) FIELD_PREP(R0E_PORT_FW_MASK, x)
+#define R03_BPDU_FR BIT(9)
+#define R03_EG_TAG_MASK GENMASK(8, 6)
+#define R03_EG_TAG(x) FIELD_PREP(R03_EG_TAG_MASK, x)
+#define R03_PORT_FW_MASK GENMASK(2, 0)
+
+enum mt753x_to_cpu_fw {
+ TO_CPU_FW_SYSTEM_DEFAULT,
+ TO_CPU_FW_CPU_EXCLUDE = 4,
+ TO_CPU_FW_CPU_INCLUDE = 5,
+ TO_CPU_FW_CPU_ONLY = 6,
+ TO_CPU_FW_DROP = 7,
};
/* Registers for address table access */
diff --git a/drivers/net/ethernet/amd/pds_core/debugfs.c b/drivers/net/ethernet/amd/pds_core/debugfs.c
index 51f3f73a839a..33b8e8d1fd4c 100644
--- a/drivers/net/ethernet/amd/pds_core/debugfs.c
+++ b/drivers/net/ethernet/amd/pds_core/debugfs.c
@@ -64,9 +64,14 @@ DEFINE_SHOW_ATTRIBUTE(identity);
void pdsc_debugfs_add_ident(struct pdsc *pdsc)
{
+ struct dentry *dentry;
+
/* This file will already exist in the reset flow */
- if (debugfs_lookup("identity", pdsc->dentry))
+ dentry = debugfs_lookup("identity", pdsc->dentry);
+ if (!IS_ERR_OR_NULL(dentry)) {
+ dput(dentry);
return;
+ }
debugfs_create_file("identity", 0400, pdsc->dentry,
pdsc, &identity_fops);
diff --git a/drivers/net/ethernet/amd/pds_core/dev.c b/drivers/net/ethernet/amd/pds_core/dev.c
index e65a1632df50..0e9398503a04 100644
--- a/drivers/net/ethernet/amd/pds_core/dev.c
+++ b/drivers/net/ethernet/amd/pds_core/dev.c
@@ -162,12 +162,19 @@ static int pdsc_devcmd_wait(struct pdsc *pdsc, u8 opcode, int max_seconds)
dev_dbg(dev, "DEVCMD %d %s after %ld secs\n",
opcode, pdsc_devcmd_str(opcode), duration / HZ);
- if ((!done || timeout) && running) {
+ if (!running) {
+ dev_err(dev, "DEVCMD %d %s fw not running\n",
+ opcode, pdsc_devcmd_str(opcode));
+ pdsc_devcmd_clean(pdsc);
+ return -ENXIO;
+ }
+
+ if (!done || timeout) {
dev_err(dev, "DEVCMD %d %s timeout, done %d timeout %d max_seconds=%d\n",
opcode, pdsc_devcmd_str(opcode), done, timeout,
max_seconds);
- err = -ETIMEDOUT;
pdsc_devcmd_clean(pdsc);
+ return -ETIMEDOUT;
}
status = pdsc_devcmd_status(pdsc);
diff --git a/drivers/net/ethernet/amd/pds_core/devlink.c b/drivers/net/ethernet/amd/pds_core/devlink.c
index bee70e46e34c..3144bad75a4d 100644
--- a/drivers/net/ethernet/amd/pds_core/devlink.c
+++ b/drivers/net/ethernet/amd/pds_core/devlink.c
@@ -120,12 +120,16 @@ int pdsc_dl_info_get(struct devlink *dl, struct devlink_info_req *req,
listlen = min(fw_list.num_fw_slots, ARRAY_SIZE(fw_list.fw_names));
for (i = 0; i < listlen; i++) {
+ char *fw_ver = fw_list.fw_names[i].fw_version;
+
if (i < ARRAY_SIZE(fw_slotnames))
strscpy(buf, fw_slotnames[i], sizeof(buf));
else
snprintf(buf, sizeof(buf), "fw.slot_%d", i);
- err = devlink_info_version_stored_put(req, buf,
- fw_list.fw_names[i].fw_version);
+ fw_ver[sizeof(fw_list.fw_names[i].fw_version) - 1] = '\0';
+ err = devlink_info_version_stored_put(req, buf, fw_ver);
+ if (err)
+ return err;
}
err = devlink_info_version_running_put(req,
diff --git a/drivers/net/ethernet/atheros/ag71xx.c b/drivers/net/ethernet/atheros/ag71xx.c
index baf12ae0b8c4..576e75b5168e 100644
--- a/drivers/net/ethernet/atheros/ag71xx.c
+++ b/drivers/net/ethernet/atheros/ag71xx.c
@@ -1880,6 +1880,9 @@ static int ag71xx_probe(struct platform_device *pdev)
return -ENOMEM;
ndev->irq = platform_get_irq(pdev, 0);
+ if (ndev->irq < 0)
+ return ndev->irq;
+
err = devm_request_irq(&pdev->dev, ndev->irq, ag71xx_interrupt,
0x0, dev_name(&pdev->dev), ndev);
if (err) {
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index d1f5ae56fa41..d8e4456d111e 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1326,13 +1326,12 @@ void bcmgenet_eee_enable_set(struct net_device *dev, bool enable,
reg &= ~(TBUF_EEE_EN | TBUF_PM_EN);
bcmgenet_writel(reg, priv->base + off);
- /* Do the same for thing for RBUF */
+ /* RBUF EEE/PM can break the RX path on GENET. Keep it disabled. */
reg = bcmgenet_rbuf_readl(priv, RBUF_ENERGY_CTRL);
- if (enable)
- reg |= RBUF_EEE_EN | RBUF_PM_EN;
- else
+ if (reg & (RBUF_EEE_EN | RBUF_PM_EN)) {
reg &= ~(RBUF_EEE_EN | RBUF_PM_EN);
- bcmgenet_rbuf_writel(priv, reg, RBUF_ENERGY_CTRL);
+ bcmgenet_rbuf_writel(priv, reg, RBUF_ENERGY_CTRL);
+ }
if (!enable && priv->clk_eee_enabled) {
clk_disable_unprepare(priv->clk_eee);
diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
index d323c5c23521..e6e9c8a576af 100644
--- a/drivers/net/ethernet/cirrus/cs89x0.c
+++ b/drivers/net/ethernet/cirrus/cs89x0.c
@@ -1271,7 +1271,6 @@ static const struct net_device_ops net_ops = {
static void __init reset_chip(struct net_device *dev)
{
-#if !defined(CONFIG_MACH_MX31ADS)
struct net_local *lp = netdev_priv(dev);
unsigned long reset_start_time;
@@ -1298,7 +1297,6 @@ static void __init reset_chip(struct net_device *dev)
while ((readreg(dev, PP_SelfST) & INIT_DONE) == 0 &&
time_before(jiffies, reset_start_time + 2))
;
-#endif /* !CONFIG_MACH_MX31ADS */
}
/* This is the real probe routine.
diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c
index fce2ff1e1d83..45a548d93e15 100644
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -121,6 +121,9 @@ struct gemini_ethernet_port {
struct napi_struct napi;
struct hrtimer rx_coalesce_timer;
unsigned int rx_coalesce_nsecs;
+ struct sk_buff *rx_skb;
+ unsigned int rx_frag_nr;
+
unsigned int freeq_refill;
struct gmac_txq txq[TX_QUEUE_NUM];
unsigned int txq_order;
@@ -1447,10 +1450,11 @@ static unsigned int gmac_rx(struct net_device *netdev, unsigned int budget)
unsigned short m = (1 << port->rxq_order) - 1;
struct gemini_ethernet *geth = port->geth;
void __iomem *ptr_reg = port->rxq_rwptr;
+ unsigned int frag_nr = port->rx_frag_nr;
+ struct sk_buff *skb = port->rx_skb;
unsigned int frame_len, frag_len;
struct gmac_rxdesc *rx = NULL;
struct gmac_queue_page *gpage;
- static struct sk_buff *skb;
union gmac_rxdesc_0 word0;
union gmac_rxdesc_1 word1;
union gmac_rxdesc_3 word3;
@@ -1460,7 +1464,6 @@ static unsigned int gmac_rx(struct net_device *netdev, unsigned int budget)
unsigned short r, w;
union dma_rwptr rw;
dma_addr_t mapping;
- int frag_nr = 0;
spin_lock_irqsave(&geth->irq_lock, flags);
rw.bits32 = readl(ptr_reg);
@@ -1496,6 +1499,12 @@ static unsigned int gmac_rx(struct net_device *netdev, unsigned int budget)
gpage = gmac_get_queue_page(geth, port, mapping + PAGE_SIZE);
if (!gpage) {
dev_err(geth->dev, "could not find mapping\n");
+ if (skb) {
+ napi_free_frags(&port->napi);
+ port->stats.rx_dropped++;
+ skb = NULL;
+ frag_nr = 0;
+ }
continue;
}
page = gpage->page;
@@ -1504,6 +1513,8 @@ static unsigned int gmac_rx(struct net_device *netdev, unsigned int budget)
if (skb) {
napi_free_frags(&port->napi);
port->stats.rx_dropped++;
+ skb = NULL;
+ frag_nr = 0;
}
skb = gmac_skb_if_good_frame(port, word0, frame_len);
@@ -1538,6 +1549,7 @@ static unsigned int gmac_rx(struct net_device *netdev, unsigned int budget)
if (word3.bits32 & EOF_BIT) {
napi_gro_frags(&port->napi);
skb = NULL;
+ frag_nr = 0;
--budget;
}
continue;
@@ -1546,6 +1558,7 @@ static unsigned int gmac_rx(struct net_device *netdev, unsigned int budget)
if (skb) {
napi_free_frags(&port->napi);
skb = NULL;
+ frag_nr = 0;
}
if (mapping)
@@ -1554,6 +1567,8 @@ static unsigned int gmac_rx(struct net_device *netdev, unsigned int budget)
port->stats.rx_dropped++;
}
+ port->rx_skb = skb;
+ port->rx_frag_nr = frag_nr;
writew(r, ptr_reg);
return budget;
}
@@ -1882,6 +1897,8 @@ static int gmac_stop(struct net_device *netdev)
gmac_disable_tx_rx(netdev);
gmac_stop_dma(port);
napi_disable(&port->napi);
+ port->rx_skb = NULL;
+ port->rx_frag_nr = 0;
gmac_enable_irq(netdev, 0);
gmac_cleanup_rxq(netdev);
diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
index 850db8e0e6b0..14d765247d73 100644
--- a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
@@ -537,14 +537,14 @@ void ice_dcb_rebuild(struct ice_pf *pf)
struct ice_dcbx_cfg *err_cfg;
int ret;
+ mutex_lock(&pf->tc_mutex);
+
ret = ice_query_port_ets(pf->hw.port_info, &buf, sizeof(buf), NULL);
if (ret) {
dev_err(dev, "Query Port ETS failed\n");
goto dcb_error;
}
- mutex_lock(&pf->tc_mutex);
-
if (!pf->hw.port_info->qos_cfg.is_sw_lldp)
ice_cfg_etsrec_defaults(pf->hw.port_info);
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 72e394dc68f4..957b6f1b61d6 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -3646,7 +3646,7 @@ ice_vlan_rx_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
ret = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx,
ICE_MCAST_VLAN_PROMISC_BITS,
vid);
- if (ret)
+ if (ret && ret != -EEXIST)
goto finish;
}
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c
index 4e110a008a25..eae4376c6859 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.c
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.c
@@ -2364,8 +2364,8 @@ ice_xmit_frame_ring(struct sk_buff *skb, struct ice_tx_ring *tx_ring)
ice_trace(xmit_frame_ring, tx_ring, skb);
- /* record the location of the first descriptor for this packet */
- first = &tx_ring->tx_buf[tx_ring->next_to_use];
+ if (unlikely(ipv6_hopopt_jumbo_remove(skb)))
+ goto out_drop;
count = ice_xmit_desc_count(skb);
if (ice_chk_linearize(skb, count)) {
@@ -2392,6 +2392,8 @@ ice_xmit_frame_ring(struct sk_buff *skb, struct ice_tx_ring *tx_ring)
offload.tx_ring = tx_ring;
+ /* record the location of the first descriptor for this packet */
+ first = &tx_ring->tx_buf[tx_ring->next_to_use];
first->skb = skb;
first->type = ICE_TX_BUF_SKB;
first->bytecount = max_t(unsigned int, skb->len, ETH_ZLEN);
@@ -2453,7 +2455,6 @@ ice_xmit_frame_ring(struct sk_buff *skb, struct ice_tx_ring *tx_ring)
out_drop:
ice_trace(xmit_frame_ring_drop, tx_ring, skb);
dev_kfree_skb_any(skb);
- first->type = ICE_TX_BUF_EMPTY;
return NETDEV_TX_OK;
}
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 72b17a0f052c..99d6aa03d4b6 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1225,6 +1225,7 @@ static int ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
ether_addr_equal(rx_ring->netdev->dev_addr,
eth_hdr(skb)->h_source)) {
dev_kfree_skb_irq(skb);
+ skb = NULL;
continue;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/esw/ipsec_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/esw/ipsec_fs.c
index eed8fcde2613..7dfec1629bab 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/esw/ipsec_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/esw/ipsec_fs.c
@@ -129,7 +129,8 @@ static int mlx5_esw_ipsec_modify_flow_dests(struct mlx5_eswitch *esw,
attr = flow->attr;
esw_attr = attr->esw_attr;
- if (esw_attr->out_count - esw_attr->split_count > 1)
+ if (!esw_attr->out_count ||
+ esw_attr->out_count - esw_attr->split_count > 1)
return 0;
err = mlx5_eswitch_restore_ipsec_rule(esw, flow->rule[0], esw_attr,
diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
index 5466f14e000c..ce48685a50b2 100644
--- a/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_main.c
@@ -750,11 +750,10 @@ static void lan966x_cleanup_ports(struct lan966x *lan966x)
for (p = 0; p < lan966x->num_phys_ports; p++) {
port = lan966x->ports[p];
- if (!port)
+ if (!port || !port->dev)
continue;
- if (port->dev)
- unregister_netdev(port->dev);
+ unregister_netdev(port->dev);
lan966x_xdp_port_deinit(port);
if (lan966x->fdma && lan966x->fdma_ndev == port->dev)
@@ -875,6 +874,9 @@ static int lan966x_probe_port(struct lan966x *lan966x, u32 p,
err = register_netdev(dev);
if (err) {
dev_err(lan966x->dev, "register_netdev failed\n");
+ phylink_destroy(phylink);
+ port->phylink = NULL;
+ port->dev = NULL;
return err;
}
diff --git a/drivers/net/ethernet/microsoft/mana/hw_channel.c b/drivers/net/ethernet/microsoft/mana/hw_channel.c
index 148dda6570fc..1234c62fcbc7 100644
--- a/drivers/net/ethernet/microsoft/mana/hw_channel.c
+++ b/drivers/net/ethernet/microsoft/mana/hw_channel.c
@@ -75,21 +75,19 @@ static int mana_hwc_post_rx_wqe(const struct hwc_wq *hwc_rxq,
}
static void mana_hwc_handle_resp(struct hw_channel_context *hwc, u32 resp_len,
- struct hwc_work_request *rx_req)
+ struct hwc_work_request *rx_req, u16 msg_id)
{
const struct gdma_resp_hdr *resp_msg = rx_req->buf_va;
struct hwc_caller_ctx *ctx;
int err;
- if (!test_bit(resp_msg->response.hwc_msg_id,
- hwc->inflight_msg_res.map)) {
- dev_err(hwc->dev, "hwc_rx: invalid msg_id = %u\n",
- resp_msg->response.hwc_msg_id);
+ if (!test_bit(msg_id, hwc->inflight_msg_res.map)) {
+ dev_err(hwc->dev, "hwc_rx: invalid msg_id = %u\n", msg_id);
mana_hwc_post_rx_wqe(hwc->rxq, rx_req);
return;
}
- ctx = hwc->caller_ctx + resp_msg->response.hwc_msg_id;
+ ctx = hwc->caller_ctx + msg_id;
err = mana_hwc_verify_resp_msg(ctx, resp_msg, resp_len);
if (err)
goto out;
@@ -218,6 +216,7 @@ static void mana_hwc_rx_event_handler(void *ctx, u32 gdma_rxq_id,
struct gdma_sge *sge;
u64 rq_base_addr;
u64 rx_req_idx;
+ u16 msg_id;
u8 *wqe;
if (WARN_ON_ONCE(hwc_rxq->gdma_wq->id != gdma_rxq_id))
@@ -233,16 +232,26 @@ static void mana_hwc_rx_event_handler(void *ctx, u32 gdma_rxq_id,
rq_base_addr = hwc_rxq->msg_buf->mem_info.dma_handle;
rx_req_idx = (sge->address - rq_base_addr) / hwc->max_req_msg_size;
+ if (rx_req_idx >= hwc_rxq->msg_buf->num_reqs) {
+ dev_err(hwc->dev, "HWC RX: wrong rx_req_idx=%llu, num_reqs=%u\n",
+ rx_req_idx, hwc_rxq->msg_buf->num_reqs);
+ return;
+ }
+
rx_req = &hwc_rxq->msg_buf->reqs[rx_req_idx];
resp = (struct gdma_resp_hdr *)rx_req->buf_va;
- if (resp->response.hwc_msg_id >= hwc->num_inflight_msg) {
- dev_err(hwc->dev, "HWC RX: wrong msg_id=%u\n",
- resp->response.hwc_msg_id);
+ /* Read msg_id once from DMA buffer to prevent TOCTOU:
+ * DMA memory is shared/unencrypted in CVMs - host can
+ * modify it between reads.
+ */
+ msg_id = READ_ONCE(resp->response.hwc_msg_id);
+ if (msg_id >= hwc->num_inflight_msg) {
+ dev_err(hwc->dev, "HWC RX: wrong msg_id=%u\n", msg_id);
return;
}
- mana_hwc_handle_resp(hwc, rx_oob->tx_oob_data_size, rx_req);
+ mana_hwc_handle_resp(hwc, rx_oob->tx_oob_data_size, rx_req, msg_id);
/* Can no longer use 'resp', because the buffer is posted to the HW
* in mana_hwc_handle_resp() above.
diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
index 33f4f58ee51c..1fb09372c25a 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c
@@ -1038,11 +1038,13 @@ static void qed_cid_map_free(struct qed_hwfn *p_hwfn)
for (type = 0; type < MAX_CONN_TYPES; type++) {
bitmap_free(p_mngr->acquired[type].cid_map);
+ p_mngr->acquired[type].cid_map = NULL;
p_mngr->acquired[type].max_count = 0;
p_mngr->acquired[type].start_cid = 0;
for (vf = 0; vf < MAX_NUM_VFS; vf++) {
bitmap_free(p_mngr->acquired_vf[type][vf].cid_map);
+ p_mngr->acquired_vf[type][vf].cid_map = NULL;
p_mngr->acquired_vf[type][vf].max_count = 0;
p_mngr->acquired_vf[type][vf].start_cid = 0;
}
diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
index 78253ad57b2e..c549845f60f1 100644
--- a/drivers/net/ifb.c
+++ b/drivers/net/ifb.c
@@ -211,12 +211,12 @@ static void ifb_get_strings(struct net_device *dev, u32 stringset, u8 *buf)
switch (stringset) {
case ETH_SS_STATS:
- for (i = 0; i < dev->real_num_rx_queues; i++)
+ for (i = 0; i < dev->num_tx_queues; i++)
for (j = 0; j < IFB_Q_STATS_LEN; j++)
ethtool_sprintf(&p, "rx_queue_%u_%.18s",
i, ifb_q_stats_desc[j].desc);
- for (i = 0; i < dev->real_num_tx_queues; i++)
+ for (i = 0; i < dev->num_tx_queues; i++)
for (j = 0; j < IFB_Q_STATS_LEN; j++)
ethtool_sprintf(&p, "tx_queue_%u_%.18s",
i, ifb_q_stats_desc[j].desc);
@@ -229,8 +229,7 @@ static int ifb_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
- return IFB_Q_STATS_LEN * (dev->real_num_rx_queues +
- dev->real_num_tx_queues);
+ return IFB_Q_STATS_LEN * dev->num_tx_queues * 2;
default:
return -EOPNOTSUPP;
}
@@ -262,12 +261,12 @@ static void ifb_get_ethtool_stats(struct net_device *dev,
struct ifb_q_private *txp;
int i;
- for (i = 0; i < dev->real_num_rx_queues; i++) {
+ for (i = 0; i < dev->num_tx_queues; i++) {
txp = dp->tx_private + i;
ifb_fill_stats_data(&data, &txp->rx_stats);
}
- for (i = 0; i < dev->real_num_tx_queues; i++) {
+ for (i = 0; i < dev->num_tx_queues; i++) {
txp = dp->tx_private + i;
ifb_fill_stats_data(&data, &txp->tx_stats);
}
diff --git a/drivers/net/phy/dp83tc811.c b/drivers/net/phy/dp83tc811.c
index 7ea32fb77190..5425a95352f9 100644
--- a/drivers/net/phy/dp83tc811.c
+++ b/drivers/net/phy/dp83tc811.c
@@ -393,6 +393,7 @@ static struct phy_driver dp83811_driver[] = {
.config_init = dp83811_config_init,
.config_aneg = dp83811_config_aneg,
.soft_reset = dp83811_phy_reset,
+ .get_features = genphy_c45_pma_read_ext_abilities,
.get_wol = dp83811_get_wol,
.set_wol = dp83811_set_wol,
.config_intr = dp83811_config_intr,
diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c
index 8e6fd4962c48..747d14bf152c 100644
--- a/drivers/net/phy/phy-c45.c
+++ b/drivers/net/phy/phy-c45.c
@@ -919,6 +919,79 @@ int genphy_c45_pma_baset1_read_abilities(struct phy_device *phydev)
}
EXPORT_SYMBOL_GPL(genphy_c45_pma_baset1_read_abilities);
+/**
+ * genphy_c45_pma_read_ext_abilities - read supported link modes from PMA
+ * @phydev: target phy_device struct
+ *
+ * Read the supported link modes from the PMA/PMD extended ability register
+ * (Register 1.11).
+ */
+int genphy_c45_pma_read_ext_abilities(struct phy_device *phydev)
+{
+ int val;
+
+ val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_EXTABLE);
+ if (val < 0)
+ return val;
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_10GBLRM);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_10GBT);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_10GBKX4);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_10GBKR);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_1000BT);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_1000BKX);
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_100BTX);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_100BTX);
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_10BT);
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT,
+ phydev->supported,
+ val & MDIO_PMA_EXTABLE_10BT);
+
+ if (val & MDIO_PMA_EXTABLE_NBT) {
+ val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD,
+ MDIO_PMA_NG_EXTABLE);
+ if (val < 0)
+ return val;
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_NG_EXTABLE_2_5GBT);
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
+ phydev->supported,
+ val & MDIO_PMA_NG_EXTABLE_5GBT);
+ }
+
+ if (val & MDIO_PMA_EXTABLE_BT1) {
+ val = genphy_c45_pma_baset1_read_abilities(phydev);
+ if (val < 0)
+ return val;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(genphy_c45_pma_read_ext_abilities);
+
/**
* genphy_c45_pma_read_abilities - read supported link modes from PMA
* @phydev: target phy_device struct
@@ -962,63 +1035,9 @@ int genphy_c45_pma_read_abilities(struct phy_device *phydev)
val & MDIO_PMA_STAT2_10GBER);
if (val & MDIO_PMA_STAT2_EXTABLE) {
- val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_EXTABLE);
+ val = genphy_c45_pma_read_ext_abilities(phydev);
if (val < 0)
return val;
-
- linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_10GBLRM);
- linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseT_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_10GBT);
- linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_10GBKX4);
- linkmode_mod_bit(ETHTOOL_LINK_MODE_10000baseKR_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_10GBKR);
- linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_1000BT);
- linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseKX_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_1000BKX);
-
- linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_100BTX);
- linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_100BTX);
-
- linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_10BT);
- linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT,
- phydev->supported,
- val & MDIO_PMA_EXTABLE_10BT);
-
- if (val & MDIO_PMA_EXTABLE_NBT) {
- val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD,
- MDIO_PMA_NG_EXTABLE);
- if (val < 0)
- return val;
-
- linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_NG_EXTABLE_2_5GBT);
-
- linkmode_mod_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
- phydev->supported,
- val & MDIO_PMA_NG_EXTABLE_5GBT);
- }
-
- if (val & MDIO_PMA_EXTABLE_BT1) {
- val = genphy_c45_pma_baset1_read_abilities(phydev);
- if (val < 0)
- return val;
- }
}
/* This is optional functionality. If not supported, we may get an error
diff --git a/drivers/net/wireless/ath/ath11k/dp_rx.c b/drivers/net/wireless/ath/ath11k/dp_rx.c
index d2d994e09480..31fd92bd9efe 100644
--- a/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ b/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -2217,8 +2217,7 @@ ath11k_dp_rx_h_find_peer(struct ath11k_base *ab, struct sk_buff *msdu)
lockdep_assert_held(&ab->base_lock);
- if (rxcb->peer_id)
- peer = ath11k_peer_find_by_id(ab, rxcb->peer_id);
+ peer = ath11k_peer_find_by_id(ab, rxcb->peer_id);
if (peer)
return peer;
diff --git a/drivers/net/wireless/ath/ath11k/hal.c b/drivers/net/wireless/ath/ath11k/hal.c
index b42925f84200..0c93ed9ba52a 100644
--- a/drivers/net/wireless/ath/ath11k/hal.c
+++ b/drivers/net/wireless/ath/ath11k/hal.c
@@ -1372,14 +1372,22 @@ EXPORT_SYMBOL(ath11k_hal_srng_deinit);
void ath11k_hal_srng_clear(struct ath11k_base *ab)
{
- /* No need to memset rdp and wrp memory since each individual
- * segment would get cleared in ath11k_hal_srng_src_hw_init()
- * and ath11k_hal_srng_dst_hw_init().
+ /*
+ * Preserve the shared pointer buffers, but clear the previous
+ * firmware instance's hp/tp state before handing them back to FW.
+ * LMAC rings reuse this shared memory without going through the
+ * normal SRNG hw-init path that zeros non-LMAC ring pointers.
*/
memset(ab->hal.srng_list, 0,
sizeof(ab->hal.srng_list));
memset(ab->hal.shadow_reg_addr, 0,
sizeof(ab->hal.shadow_reg_addr));
+ if (ab->hal.rdp.vaddr)
+ memset(ab->hal.rdp.vaddr, 0,
+ sizeof(*ab->hal.rdp.vaddr) * HAL_SRNG_RING_ID_MAX);
+ if (ab->hal.wrp.vaddr)
+ memset(ab->hal.wrp.vaddr, 0,
+ sizeof(*ab->hal.wrp.vaddr) * HAL_SRNG_NUM_LMAC_RINGS);
ab->hal.avail_blk_resource = 0;
ab->hal.current_blk_index = 0;
ab->hal.num_shadow_reg_configured = 0;
diff --git a/drivers/net/wireless/ath/ath11k/hal_rx.c b/drivers/net/wireless/ath/ath11k/hal_rx.c
index 2bc95026335e..8cb212449da7 100644
--- a/drivers/net/wireless/ath/ath11k/hal_rx.c
+++ b/drivers/net/wireless/ath/ath11k/hal_rx.c
@@ -1469,11 +1469,8 @@ ath11k_hal_rx_parse_mon_status_tlv(struct ath11k_base *ab,
case HAL_RX_MPDU_START: {
struct hal_rx_mpdu_info *mpdu_info =
(struct hal_rx_mpdu_info *)tlv_data;
- u16 peer_id;
- peer_id = ath11k_hal_rx_mpduinfo_get_peerid(ab, mpdu_info);
- if (peer_id)
- ppdu_info->peer_id = peer_id;
+ ppdu_info->peer_id = ath11k_hal_rx_mpduinfo_get_peerid(ab, mpdu_info);
break;
}
case HAL_RXPCU_PPDU_END_INFO: {
diff --git a/drivers/net/wireless/ath/ath11k/testmode.c b/drivers/net/wireless/ath/ath11k/testmode.c
index 43bb23265d34..b9f0ef458988 100644
--- a/drivers/net/wireless/ath/ath11k/testmode.c
+++ b/drivers/net/wireless/ath/ath11k/testmode.c
@@ -457,6 +457,7 @@ static int ath11k_tm_cmd_wmi_ftm(struct ath11k *ar, struct nlattr *tb[])
ret = ath11k_wmi_cmd_send(wmi, skb, cmd_id);
if (ret) {
ath11k_warn(ar->ab, "failed to send wmi ftm command: %d\n", ret);
+ dev_kfree_skb(skb);
goto out;
}
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c
index f491aeb22a88..a23f20fb1ebd 100644
--- a/drivers/net/wireless/ath/ath11k/wmi.c
+++ b/drivers/net/wireless/ath/ath11k/wmi.c
@@ -9090,6 +9090,7 @@ int ath11k_wmi_wow_host_wakeup_ind(struct ath11k *ar)
struct wmi_wow_host_wakeup_ind *cmd;
struct sk_buff *skb;
size_t len;
+ int ret;
len = sizeof(*cmd);
skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, len);
@@ -9103,14 +9104,20 @@ int ath11k_wmi_wow_host_wakeup_ind(struct ath11k *ar)
ath11k_dbg(ar->ab, ATH11K_DBG_WMI, "tlv wow host wakeup ind\n");
- return ath11k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID);
+ ret = ath11k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID);
+ if (ret) {
+ ath11k_warn(ar->ab, "failed to send WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID\n");
+ dev_kfree_skb(skb);
+ }
+
+ return ret;
}
int ath11k_wmi_wow_enable(struct ath11k *ar)
{
struct wmi_wow_enable_cmd *cmd;
struct sk_buff *skb;
- int len;
+ int ret, len;
len = sizeof(*cmd);
skb = ath11k_wmi_alloc_skb(ar->wmi->wmi_ab, len);
@@ -9125,7 +9132,13 @@ int ath11k_wmi_wow_enable(struct ath11k *ar)
cmd->pause_iface_config = WOW_IFACE_PAUSE_ENABLED;
ath11k_dbg(ar->ab, ATH11K_DBG_WMI, "tlv wow enable\n");
- return ath11k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_ENABLE_CMDID);
+ ret = ath11k_wmi_cmd_send(ar->wmi, skb, WMI_WOW_ENABLE_CMDID);
+ if (ret) {
+ ath11k_warn(ar->ab, "failed to send WMI_WOW_ENABLE_CMDID\n");
+ dev_kfree_skb(skb);
+ }
+
+ return ret;
}
int ath11k_wmi_scan_prob_req_oui(struct ath11k *ar,
diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem.c b/drivers/net/wwan/iosm/iosm_ipc_imem.c
index 829515a601b3..107c944ca9e6 100644
--- a/drivers/net/wwan/iosm/iosm_ipc_imem.c
+++ b/drivers/net/wwan/iosm/iosm_ipc_imem.c
@@ -1430,6 +1430,8 @@ struct iosm_imem *ipc_imem_init(struct iosm_pcie *pcie, unsigned int device_id,
protocol_init_fail:
cancel_work_sync(&ipc_imem->run_state_worker);
ipc_task_deinit(ipc_imem->ipc_task);
+ if (ipc_imem->ipc_protocol)
+ ipc_protocol_deinit(ipc_imem->ipc_protocol);
ipc_task_init_fail:
kfree(ipc_imem->ipc_task);
ipc_task_fail:
diff --git a/drivers/phy/marvell/phy-mvebu-a3700-utmi.c b/drivers/phy/marvell/phy-mvebu-a3700-utmi.c
index 04f4fb4bed70..f882bc57649c 100644
--- a/drivers/phy/marvell/phy-mvebu-a3700-utmi.c
+++ b/drivers/phy/marvell/phy-mvebu-a3700-utmi.c
@@ -168,9 +168,8 @@ static int mvebu_a3700_utmi_phy_power_off(struct phy *phy)
u32 reg;
/* Disable PHY pull-up and enable USB2 suspend */
- reg = readl(utmi->regs + USB2_PHY_CTRL(usb32));
- reg &= ~(RB_USB2PHY_PU | RB_USB2PHY_SUSPM(usb32));
- writel(reg, utmi->regs + USB2_PHY_CTRL(usb32));
+ regmap_update_bits(utmi->usb_misc, USB2_PHY_CTRL(usb32),
+ RB_USB2PHY_PU | RB_USB2PHY_SUSPM(usb32), 0);
/* Power down OTG module */
if (usb32) {
diff --git a/drivers/phy/tegra/xusb-tegra186.c b/drivers/phy/tegra/xusb-tegra186.c
index bec9616c4a2e..4452e73fb82a 100644
--- a/drivers/phy/tegra/xusb-tegra186.c
+++ b/drivers/phy/tegra/xusb-tegra186.c
@@ -20,8 +20,8 @@
/* FUSE USB_CALIB registers */
#define HS_CURR_LEVEL_PADX_SHIFT(x) ((x) ? (11 + (x - 1) * 6) : 0)
#define HS_CURR_LEVEL_PAD_MASK 0x3f
-#define HS_TERM_RANGE_ADJ_SHIFT 7
-#define HS_TERM_RANGE_ADJ_MASK 0xf
+#define HS_TERM_RANGE_ADJ_PADX_SHIFT(x) ((x) ? (5 + (x - 1) * 4) : 7)
+#define HS_TERM_RANGE_ADJ_PAD_MASK 0xf
#define HS_SQUELCH_SHIFT 29
#define HS_SQUELCH_MASK 0x7
@@ -253,7 +253,7 @@
struct tegra_xusb_fuse_calibration {
u32 *hs_curr_level;
u32 hs_squelch;
- u32 hs_term_range_adj;
+ u32 *hs_term_range_adj;
u32 rpd_ctrl;
};
@@ -930,7 +930,7 @@ static int tegra186_utmi_phy_power_on(struct phy *phy)
value = padctl_readl(padctl, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index));
value &= ~TERM_RANGE_ADJ(~0);
- value |= TERM_RANGE_ADJ(priv->calib.hs_term_range_adj);
+ value |= TERM_RANGE_ADJ(priv->calib.hs_term_range_adj[index]);
value &= ~RPD_CTRL(~0);
value |= RPD_CTRL(priv->calib.rpd_ctrl);
padctl_writel(padctl, value, XUSB_PADCTL_USB2_OTG_PADX_CTL1(index));
@@ -1464,17 +1464,23 @@ static const char * const tegra186_usb3_functions[] = {
static int
tegra186_xusb_read_fuse_calibration(struct tegra186_xusb_padctl *padctl)
{
+ const struct tegra_xusb_padctl_soc *soc = padctl->base.soc;
struct device *dev = padctl->base.dev;
unsigned int i, count;
u32 value, *level;
+ u32 *hs_term_range_adj;
int err;
- count = padctl->base.soc->ports.usb2.count;
+ count = soc->ports.usb2.count;
level = devm_kcalloc(dev, count, sizeof(u32), GFP_KERNEL);
if (!level)
return -ENOMEM;
+ hs_term_range_adj = devm_kcalloc(dev, count, sizeof(u32), GFP_KERNEL);
+ if (!hs_term_range_adj)
+ return -ENOMEM;
+
err = tegra_fuse_readl(TEGRA_FUSE_SKU_CALIB_0, &value);
if (err)
return dev_err_probe(dev, err,
@@ -1490,8 +1496,8 @@ tegra186_xusb_read_fuse_calibration(struct tegra186_xusb_padctl *padctl)
padctl->calib.hs_squelch = (value >> HS_SQUELCH_SHIFT) &
HS_SQUELCH_MASK;
- padctl->calib.hs_term_range_adj = (value >> HS_TERM_RANGE_ADJ_SHIFT) &
- HS_TERM_RANGE_ADJ_MASK;
+ hs_term_range_adj[0] = (value >> HS_TERM_RANGE_ADJ_PADX_SHIFT(0)) &
+ HS_TERM_RANGE_ADJ_PAD_MASK;
err = tegra_fuse_readl(TEGRA_FUSE_USB_CALIB_EXT_0, &value);
if (err) {
@@ -1503,6 +1509,17 @@ tegra186_xusb_read_fuse_calibration(struct tegra186_xusb_padctl *padctl)
padctl->calib.rpd_ctrl = (value >> RPD_CTRL_SHIFT) & RPD_CTRL_MASK;
+ for (i = 1; i < count; i++) {
+ if (soc->has_per_pad_term)
+ hs_term_range_adj[i] =
+ (value >> HS_TERM_RANGE_ADJ_PADX_SHIFT(i)) &
+ HS_TERM_RANGE_ADJ_PAD_MASK;
+ else
+ hs_term_range_adj[i] = hs_term_range_adj[0];
+ }
+
+ padctl->calib.hs_term_range_adj = hs_term_range_adj;
+
return 0;
}
@@ -1708,6 +1725,7 @@ const struct tegra_xusb_padctl_soc tegra194_xusb_padctl_soc = {
.num_supplies = ARRAY_SIZE(tegra194_xusb_padctl_supply_names),
.supports_gen2 = true,
.poll_trk_completed = true,
+ .has_per_pad_term = true,
};
EXPORT_SYMBOL_GPL(tegra194_xusb_padctl_soc);
@@ -1732,6 +1750,7 @@ const struct tegra_xusb_padctl_soc tegra234_xusb_padctl_soc = {
.trk_hw_mode = false,
.trk_update_on_idle = true,
.supports_lp_cfg_en = true,
+ .has_per_pad_term = true,
};
EXPORT_SYMBOL_GPL(tegra234_xusb_padctl_soc);
#endif
diff --git a/drivers/phy/tegra/xusb.h b/drivers/phy/tegra/xusb.h
index d2b5f9565132..810b410672f3 100644
--- a/drivers/phy/tegra/xusb.h
+++ b/drivers/phy/tegra/xusb.h
@@ -436,6 +436,7 @@ struct tegra_xusb_padctl_soc {
bool trk_hw_mode;
bool trk_update_on_idle;
bool supports_lp_cfg_en;
+ bool has_per_pad_term;
};
struct tegra_xusb_padctl {
diff --git a/drivers/pinctrl/qcom/pinctrl-sm8150.c b/drivers/pinctrl/qcom/pinctrl-sm8150.c
index f8f5bee74f1d..565aab84835c 100644
--- a/drivers/pinctrl/qcom/pinctrl-sm8150.c
+++ b/drivers/pinctrl/qcom/pinctrl-sm8150.c
@@ -1496,18 +1496,18 @@ static const struct msm_gpio_wakeirq_map sm8150_pdc_map[] = {
{ 3, 31 }, { 5, 32 }, { 8, 33 }, { 9, 34 }, { 10, 100 },
{ 12, 104 }, { 24, 37 }, { 26, 38 }, { 27, 41 }, { 28, 42 },
{ 30, 39 }, { 36, 43 }, { 37, 44 }, { 38, 30 }, { 39, 118 },
- { 39, 125 }, { 41, 47 }, { 42, 48 }, { 46, 50 }, { 47, 49 },
- { 48, 51 }, { 49, 53 }, { 50, 52 }, { 51, 116 }, { 51, 123 },
+ { 41, 47 }, { 42, 48 }, { 46, 50 }, { 47, 49 },
+ { 48, 51 }, { 49, 53 }, { 50, 52 }, { 51, 116 },
{ 53, 54 }, { 54, 55 }, { 55, 56 }, { 56, 57 }, { 58, 58 },
{ 60, 60 }, { 61, 61 }, { 68, 62 }, { 70, 63 }, { 76, 71 },
{ 77, 66 }, { 81, 64 }, { 83, 65 }, { 86, 67 }, { 87, 84 },
- { 88, 117 }, { 88, 124 }, { 90, 69 }, { 91, 70 }, { 93, 75 },
+ { 88, 117 }, { 90, 69 }, { 91, 70 }, { 93, 75 },
{ 95, 72 }, { 96, 73 }, { 97, 74 }, { 101, 40 }, { 103, 77 },
{ 104, 78 }, { 108, 79 }, { 112, 80 }, { 113, 81 }, { 114, 82 },
{ 117, 85 }, { 118, 101 }, { 119, 87 }, { 120, 88 }, { 121, 89 },
{ 122, 90 }, { 123, 91 }, { 124, 92 }, { 125, 93 }, { 129, 94 },
{ 132, 105 }, { 133, 83 }, { 134, 36 }, { 136, 97 }, { 142, 103 },
- { 144, 115 }, { 144, 122 }, { 147, 102 }, { 150, 107 },
+ { 144, 115 }, { 147, 102 }, { 150, 107 },
{ 152, 108 }, { 153, 109 }
};
diff --git a/drivers/platform/x86/adv_swbutton.c b/drivers/platform/x86/adv_swbutton.c
index 6b23ba78e028..f7bc252650d5 100644
--- a/drivers/platform/x86/adv_swbutton.c
+++ b/drivers/platform/x86/adv_swbutton.c
@@ -48,10 +48,14 @@ static int adv_swbutton_probe(struct platform_device *device)
{
struct adv_swbutton *button;
struct input_dev *input;
- acpi_handle handle = ACPI_HANDLE(&device->dev);
+ acpi_handle handle;
acpi_status status;
int error;
+ handle = ACPI_HANDLE(&device->dev);
+ if (!handle)
+ return -ENODEV;
+
button = devm_kzalloc(&device->dev, sizeof(*button), GFP_KERNEL);
if (!button)
return -ENOMEM;
diff --git a/drivers/platform/x86/hp/hp_accel.c b/drivers/platform/x86/hp/hp_accel.c
index 52535576772a..aeedc77bed7f 100644
--- a/drivers/platform/x86/hp/hp_accel.c
+++ b/drivers/platform/x86/hp/hp_accel.c
@@ -300,6 +300,9 @@ static int lis3lv02d_probe(struct platform_device *device)
int ret;
lis3_dev.bus_priv = ACPI_COMPANION(&device->dev);
+ if (!lis3_dev.bus_priv)
+ return -ENODEV;
+
lis3_dev.init = lis3lv02d_acpi_init;
lis3_dev.read = lis3lv02d_acpi_read;
lis3_dev.write = lis3lv02d_acpi_write;
diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c
index 79390e9e888a..346fbad34e24 100644
--- a/drivers/platform/x86/intel/hid.c
+++ b/drivers/platform/x86/intel/hid.c
@@ -657,12 +657,16 @@ static bool button_array_present(struct platform_device *device)
static int intel_hid_probe(struct platform_device *device)
{
- acpi_handle handle = ACPI_HANDLE(&device->dev);
unsigned long long mode, dummy;
struct intel_hid_priv *priv;
+ acpi_handle handle;
acpi_status status;
int err;
+ handle = ACPI_HANDLE(&device->dev);
+ if (!handle)
+ return -ENODEV;
+
intel_hid_init_dsm(handle);
if (!intel_hid_evaluate_method(handle, INTEL_HID_DSM_HDMM_FN, &mode)) {
diff --git a/drivers/platform/x86/intel/vbtn.c b/drivers/platform/x86/intel/vbtn.c
index 5d13452bb947..0e0c4022e61a 100644
--- a/drivers/platform/x86/intel/vbtn.c
+++ b/drivers/platform/x86/intel/vbtn.c
@@ -272,12 +272,16 @@ static bool intel_vbtn_has_switches(acpi_handle handle, bool dual_accel)
static int intel_vbtn_probe(struct platform_device *device)
{
- acpi_handle handle = ACPI_HANDLE(&device->dev);
bool dual_accel, has_buttons, has_switches;
struct intel_vbtn_priv *priv;
+ acpi_handle handle;
acpi_status status;
int err;
+ handle = ACPI_HANDLE(&device->dev);
+ if (!handle)
+ return -ENODEV;
+
dual_accel = dual_accel_detect();
has_buttons = acpi_has_method(handle, "VBDL");
has_switches = intel_vbtn_has_switches(handle, dual_accel);
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 93307ca75c10..e623359862ea 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1318,34 +1318,23 @@ void ccw_device_schedule_recovery(void)
spin_unlock_irqrestore(&recovery_lock, flags);
}
-static int purge_fn(struct subchannel *sch, void *data)
+static int purge_fn(struct device *dev, void *data)
{
- struct ccw_device *cdev;
-
- spin_lock_irq(sch->lock);
- if (sch->st != SUBCHANNEL_TYPE_IO || !sch->schib.pmcw.dnv)
- goto unlock;
-
- if (!is_blacklisted(sch->schid.ssid, sch->schib.pmcw.dev))
- goto unlock;
-
- cdev = sch_get_cdev(sch);
- if (cdev) {
- if (cdev->private->state != DEV_STATE_OFFLINE)
- goto unlock;
+ struct ccw_device *cdev = to_ccwdev(dev);
+ struct ccw_dev_id *id = &cdev->private->dev_id;
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
- if (atomic_cmpxchg(&cdev->private->onoff, 0, 1) != 0)
- goto unlock;
+ spin_lock_irq(cdev->ccwlock);
+ if (is_blacklisted(id->ssid, id->devno) &&
+ (cdev->private->state == DEV_STATE_OFFLINE) &&
+ (atomic_cmpxchg(&cdev->private->onoff, 0, 1) == 0)) {
+ CIO_MSG_EVENT(3, "ccw: purging 0.%x.%04x\n", id->ssid,
+ id->devno);
ccw_device_sched_todo(cdev, CDEV_TODO_UNREG);
+ css_sched_sch_todo(sch, SCH_TODO_UNREG);
atomic_set(&cdev->private->onoff, 0);
}
-
- css_sched_sch_todo(sch, SCH_TODO_UNREG);
- CIO_MSG_EVENT(3, "ccw: purging 0.%x.%04x%s\n", sch->schid.ssid,
- sch->schib.pmcw.dev, cdev ? "" : " (no cdev)");
-
-unlock:
- spin_unlock_irq(sch->lock);
+ spin_unlock_irq(cdev->ccwlock);
/* Abort loop in case of pending signal. */
if (signal_pending(current))
return -EINTR;
@@ -1361,7 +1350,7 @@ static int purge_fn(struct subchannel *sch, void *data)
int ccw_purge_blacklisted(void)
{
CIO_MSG_EVENT(2, "ccw: purging blacklisted devices\n");
- for_each_subchannel_staged(purge_fn, NULL, NULL);
+ bus_for_each_dev(&ccw_bus_type, NULL, NULL, purge_fn);
return 0;
}
diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c
index 35589b6af90d..544a4e85c6e4 100644
--- a/drivers/scsi/isci/host.c
+++ b/drivers/scsi/isci/host.c
@@ -1252,6 +1252,9 @@ void isci_host_deinit(struct isci_host *ihost)
wait_for_stop(ihost);
+ /* No further IRQ-driven scheduling can happen past wait_for_stop(). */
+ tasklet_kill(&ihost->completion_tasklet);
+
/* phy stop is after controller stop to allow port and device to
* go idle before shutting down the phys, but the expectation is
* that i/o has been shut off well before we reach this
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index fe3a96577f31..d0d289c49c8d 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1537,10 +1537,8 @@ static int of_qcom_slim_ngd_register(struct device *parent,
ngd->id = id;
ngd->pdev->dev.parent = parent;
- ret = driver_set_override(&ngd->pdev->dev,
- &ngd->pdev->driver_override,
- QCOM_SLIM_NGD_DRV_NAME,
- strlen(QCOM_SLIM_NGD_DRV_NAME));
+ ret = device_set_driver_override(&ngd->pdev->dev,
+ QCOM_SLIM_NGD_DRV_NAME);
if (ret) {
platform_device_put(ngd->pdev);
kfree(ngd);
diff --git a/drivers/spi/spi-mtk-snfi.c b/drivers/spi/spi-mtk-snfi.c
index 22f3b22d77ad..f960c2c2f6b8 100644
--- a/drivers/spi/spi-mtk-snfi.c
+++ b/drivers/spi/spi-mtk-snfi.c
@@ -961,7 +961,7 @@ static int mtk_snand_read_page_cache(struct mtk_snand *snf,
&snf->op_done, usecs_to_jiffies(SNFI_POLL_INTERVAL))) {
dev_err(snf->dev, "DMA timed out for reading from cache.\n");
ret = -ETIMEDOUT;
- goto cleanup;
+ goto cleanup2;
}
// Wait for BUS_SEC_CNTR returning expected value
diff --git a/drivers/spi/spi-qup.c b/drivers/spi/spi-qup.c
index 1e9cd86d9dcc..fd442062847d 100644
--- a/drivers/spi/spi-qup.c
+++ b/drivers/spi/spi-qup.c
@@ -967,8 +967,11 @@ static int spi_qup_init_dma(struct spi_controller *host, resource_size_t base)
err:
dma_release_channel(host->dma_tx);
+ host->dma_tx = NULL;
err_tx:
dma_release_channel(host->dma_rx);
+ host->dma_rx = NULL;
+
return ret;
}
diff --git a/drivers/spi/spi-sprd.c b/drivers/spi/spi-sprd.c
index 4ba822ee491a..4128d137f990 100644
--- a/drivers/spi/spi-sprd.c
+++ b/drivers/spi/spi-sprd.c
@@ -993,7 +993,8 @@ static int sprd_spi_probe(struct platform_device *pdev)
disable_clk:
clk_disable_unprepare(ss->clk);
release_dma:
- sprd_spi_dma_release(ss);
+ if (ss->dma.enable)
+ sprd_spi_dma_release(ss);
free_controller:
spi_controller_put(sctlr);
diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index e0459fd4d549..187ec6536dd6 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -874,6 +874,7 @@ static int ti_qspi_probe(struct platform_device *pdev)
dev_err(qspi->dev,
"dma_alloc_coherent failed, using PIO mode\n");
dma_release_channel(qspi->rx_chan);
+ qspi->rx_chan = NULL;
goto no_dma;
}
host->dma_rx = qspi->rx_chan;
diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index 16bb4fc3a4ba..2024532dfc44 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -74,7 +74,6 @@ struct spidev_data {
struct list_head device_entry;
/* TX/RX buffers are NULL unless this device is open (users > 0) */
- struct mutex buf_lock;
unsigned users;
u8 *tx_buffer;
u8 *rx_buffer;
@@ -102,24 +101,6 @@ spidev_sync_unlocked(struct spi_device *spi, struct spi_message *message)
return status;
}
-static ssize_t
-spidev_sync(struct spidev_data *spidev, struct spi_message *message)
-{
- ssize_t status;
- struct spi_device *spi;
-
- mutex_lock(&spidev->spi_lock);
- spi = spidev->spi;
-
- if (spi == NULL)
- status = -ESHUTDOWN;
- else
- status = spidev_sync_unlocked(spi, message);
-
- mutex_unlock(&spidev->spi_lock);
- return status;
-}
-
static inline ssize_t
spidev_sync_write(struct spidev_data *spidev, size_t len)
{
@@ -132,7 +113,8 @@ spidev_sync_write(struct spidev_data *spidev, size_t len)
spi_message_init(&m);
spi_message_add_tail(&t, &m);
- return spidev_sync(spidev, &m);
+
+ return spidev_sync_unlocked(spidev->spi, &m);
}
static inline ssize_t
@@ -147,7 +129,8 @@ spidev_sync_read(struct spidev_data *spidev, size_t len)
spi_message_init(&m);
spi_message_add_tail(&t, &m);
- return spidev_sync(spidev, &m);
+
+ return spidev_sync_unlocked(spidev->spi, &m);
}
/*-------------------------------------------------------------------------*/
@@ -157,7 +140,7 @@ static ssize_t
spidev_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos)
{
struct spidev_data *spidev;
- ssize_t status;
+ ssize_t status = -ESHUTDOWN;
/* chipselect only toggles at start or end of operation */
if (count > bufsiz)
@@ -165,7 +148,11 @@ spidev_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos)
spidev = filp->private_data;
- mutex_lock(&spidev->buf_lock);
+ mutex_lock(&spidev->spi_lock);
+
+ if (spidev->spi == NULL)
+ goto err_spi_removed;
+
status = spidev_sync_read(spidev, count);
if (status > 0) {
unsigned long missing;
@@ -176,7 +163,9 @@ spidev_read(struct file *filp, char __user *buf, size_t count, loff_t *f_pos)
else
status = status - missing;
}
- mutex_unlock(&spidev->buf_lock);
+
+err_spi_removed:
+ mutex_unlock(&spidev->spi_lock);
return status;
}
@@ -187,7 +176,7 @@ spidev_write(struct file *filp, const char __user *buf,
size_t count, loff_t *f_pos)
{
struct spidev_data *spidev;
- ssize_t status;
+ ssize_t status = -ESHUTDOWN;
unsigned long missing;
/* chipselect only toggles at start or end of operation */
@@ -196,13 +185,19 @@ spidev_write(struct file *filp, const char __user *buf,
spidev = filp->private_data;
- mutex_lock(&spidev->buf_lock);
+ mutex_lock(&spidev->spi_lock);
+
+ if (spidev->spi == NULL)
+ goto err_spi_removed;
+
missing = copy_from_user(spidev->tx_buffer, buf, count);
if (missing == 0)
status = spidev_sync_write(spidev, count);
else
status = -EFAULT;
- mutex_unlock(&spidev->buf_lock);
+
+err_spi_removed:
+ mutex_unlock(&spidev->spi_lock);
return status;
}
@@ -376,14 +371,6 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
return -ESHUTDOWN;
}
- /* use the buffer lock here for triple duty:
- * - prevent I/O (from us) so calling spi_setup() is safe;
- * - prevent concurrent SPI_IOC_WR_* from morphing
- * data fields while SPI_IOC_RD_* reads them;
- * - SPI_IOC_MESSAGE needs the buffer locked "normally".
- */
- mutex_lock(&spidev->buf_lock);
-
switch (cmd) {
/* read requests */
case SPI_IOC_RD_MODE:
@@ -516,7 +503,6 @@ spidev_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
break;
}
- mutex_unlock(&spidev->buf_lock);
spi_dev_put(spi);
mutex_unlock(&spidev->spi_lock);
return retval;
@@ -547,9 +533,6 @@ spidev_compat_ioc_message(struct file *filp, unsigned int cmd,
return -ESHUTDOWN;
}
- /* SPI_IOC_MESSAGE needs the buffer locked "normally" */
- mutex_lock(&spidev->buf_lock);
-
/* Check message and copy into scratch area */
ioc = spidev_get_ioc_message(cmd, u_ioc, &n_ioc);
if (IS_ERR(ioc)) {
@@ -570,7 +553,6 @@ spidev_compat_ioc_message(struct file *filp, unsigned int cmd,
kfree(ioc);
done:
- mutex_unlock(&spidev->buf_lock);
spi_dev_put(spi);
mutex_unlock(&spidev->spi_lock);
return retval;
@@ -795,7 +777,6 @@ static int spidev_probe(struct spi_device *spi)
/* Initialize the driver data */
spidev->spi = spi;
mutex_init(&spidev->spi_lock);
- mutex_init(&spidev->buf_lock);
INIT_LIST_HEAD(&spidev->device_entry);
diff --git a/fs/netfs/iterator.c b/fs/netfs/iterator.c
index 781ea403498e..9a047ca863fe 100644
--- a/fs/netfs/iterator.c
+++ b/fs/netfs/iterator.c
@@ -72,21 +72,24 @@ ssize_t netfs_extract_user_iter(struct iov_iter *orig, size_t orig_len,
break;
}
- if (ret > count) {
- pr_err("get_pages rc=%zd more than %zu\n", ret, count);
+ if (WARN(ret > count,
+ "%s: extract_pages overrun %zd > %zu bytes\n",
+ __func__, ret, count)) {
+ ret = -EIO;
break;
}
- count -= ret;
- ret += offset;
- cur_npages = DIV_ROUND_UP(ret, PAGE_SIZE);
-
- if (npages + cur_npages > max_pages) {
- pr_err("Out of bvec array capacity (%u vs %u)\n",
- npages + cur_npages, max_pages);
+ cur_npages = DIV_ROUND_UP(offset + ret, PAGE_SIZE);
+ if (WARN(cur_npages > max_pages - npages,
+ "%s: extract_pages overrun %u > %u pages\n",
+ __func__, npages + cur_npages, max_pages)) {
+ ret = -EIO;
break;
}
+ count -= ret;
+ ret += offset;
+
for (i = 0; i < cur_npages; i++) {
len = ret > PAGE_SIZE ? PAGE_SIZE : ret;
bvec_set_page(bv + npages + i, *pages++, len - offset, offset);
@@ -97,6 +100,11 @@ ssize_t netfs_extract_user_iter(struct iov_iter *orig, size_t orig_len,
npages += cur_npages;
}
+ /* Note: Don't try to clean up after EIO. Either we got no pages, so
+ * nothing to clean up, or we got a buffer overrun, memory corruption
+ * and can't trust the stuff in the buffer (a WARN was emitted).
+ */
+
if (ret < 0 && (ret == -ENOMEM || npages == 0)) {
for (i = 0; i < npages; i++)
unpin_user_page(bv[i].bv_page);
diff --git a/fs/smb/client/cifs_spnego.c b/fs/smb/client/cifs_spnego.c
index 2ad067886ec3..10a261bc81c9 100644
--- a/fs/smb/client/cifs_spnego.c
+++ b/fs/smb/client/cifs_spnego.c
@@ -8,6 +8,7 @@
*/
#include <linux/list.h>
+#include <linux/cred.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <keys/user-type.h>
@@ -46,12 +47,27 @@ cifs_spnego_key_destroy(struct key *key)
kfree(key->payload.data[0]);
}
+static int
+cifs_spnego_key_vet_description(const char *description)
+{
+ /*
+ * cifs.spnego descriptions are authority-bearing inputs to cifs.upcall.
+ * They are only valid when produced by CIFS while using the private
+ * spnego_cred installed below. Do not let userspace create this type
+ * of key through request_key(2)/add_key(2), since the helper treats
+ * pid/uid/creduid/upcall_target as kernel-originating fields.
+ */
+ if (current_cred() != spnego_cred)
+ return -EPERM;
+ return 0;
+}
/*
* keytype for CIFS spnego keys
*/
struct key_type cifs_spnego_key_type = {
.name = "cifs.spnego",
+ .vet_description = cifs_spnego_key_vet_description,
.instantiate = cifs_spnego_key_instantiate,
.destroy = cifs_spnego_key_destroy,
.describe = user_describe,
diff --git a/fs/smb/client/cifsfs.c b/fs/smb/client/cifsfs.c
index 11712e8c39db..a2887b978dc8 100644
--- a/fs/smb/client/cifsfs.c
+++ b/fs/smb/client/cifsfs.c
@@ -298,6 +298,8 @@ static void cifs_kill_sb(struct super_block *sb)
/* Wait for all pending oplock breaks to complete */
flush_workqueue(cifsoplockd_wq);
+ /* Wait for all opened files to release */
+ flush_workqueue(deferredclose_wq);
/* finally release root dentry */
dput(cifs_sb->root);
diff --git a/fs/smb/client/smb2transport.c b/fs/smb/client/smb2transport.c
index 63907fb245e9..e4adfb6325dd 100644
--- a/fs/smb/client/smb2transport.c
+++ b/fs/smb/client/smb2transport.c
@@ -214,7 +214,9 @@ smb2_find_smb_sess_tcon_unlocked(struct cifs_ses *ses, __u32 tid)
list_for_each_entry(tcon, &ses->tcon_list, tcon_list) {
if (tcon->tid != tid)
continue;
+ spin_lock(&tcon->tc_lock);
++tcon->tc_count;
+ spin_unlock(&tcon->tc_lock);
trace_smb3_tcon_ref(tcon->debug_id, tcon->tc_count,
netfs_trace_tcon_ref_get_find_sess_tcon);
return tcon;
diff --git a/fs/smb/server/mgmt/user_session.c b/fs/smb/server/mgmt/user_session.c
index 6c7fbd589087..d9768f88aabc 100644
--- a/fs/smb/server/mgmt/user_session.c
+++ b/fs/smb/server/mgmt/user_session.c
@@ -159,11 +159,11 @@ void ksmbd_session_destroy(struct ksmbd_session *sess)
if (!sess)
return;
+ ksmbd_tree_conn_session_logoff(sess);
+ ksmbd_destroy_file_table(sess);
if (sess->user)
ksmbd_free_user(sess->user);
-
- ksmbd_tree_conn_session_logoff(sess);
- ksmbd_destroy_file_table(&sess->file_table);
+ ksmbd_launch_ksmbd_durable_scavenger();
ksmbd_session_rpc_clear_list(sess);
free_channel_list(sess);
kfree(sess->Preauth_HashValue);
@@ -396,9 +396,11 @@ void destroy_previous_session(struct ksmbd_conn *conn,
ksmbd_all_conn_set_status(id, KSMBD_SESS_NEED_SETUP);
goto out;
}
- ksmbd_destroy_file_table(&prev_sess->file_table);
+
+ ksmbd_destroy_file_table(prev_sess);
prev_sess->state = SMB2_SESSION_EXPIRED;
ksmbd_all_conn_set_status(id, KSMBD_SESS_NEED_SETUP);
+ ksmbd_launch_ksmbd_durable_scavenger();
out:
up_write(&conn->session_lock);
up_write(&sessions_table_lock);
diff --git a/fs/smb/server/oplock.c b/fs/smb/server/oplock.c
index c49a75ff5fbb..5302c30a4a91 100644
--- a/fs/smb/server/oplock.c
+++ b/fs/smb/server/oplock.c
@@ -484,8 +484,12 @@ static inline int compare_guid_key(struct oplock_info *opinfo,
const char *guid1, const char *key1)
{
const char *guid2, *key2;
+ struct ksmbd_conn *conn;
- guid2 = opinfo->conn->ClientGUID;
+ conn = READ_ONCE(opinfo->conn);
+ if (!conn)
+ return 0;
+ guid2 = conn->ClientGUID;
key2 = opinfo->o_lease->lease_key;
if (!memcmp(guid1, guid2, SMB2_CLIENT_GUID_SIZE) &&
!memcmp(key1, key2, SMB2_LEASE_KEY_SIZE))
@@ -1841,6 +1845,7 @@ int smb2_check_durable_oplock(struct ksmbd_conn *conn,
struct ksmbd_share_config *share,
struct ksmbd_file *fp,
struct lease_ctx_info *lctx,
+ struct ksmbd_user *user,
char *name)
{
struct oplock_info *opinfo = opinfo_get(fp);
@@ -1849,6 +1854,12 @@ int smb2_check_durable_oplock(struct ksmbd_conn *conn,
if (!opinfo)
return 0;
+ if (ksmbd_vfs_compare_durable_owner(fp, user) == false) {
+ ksmbd_debug(SMB, "Durable handle reconnect failed: owner mismatch\n");
+ ret = -EBADF;
+ goto out;
+ }
+
if (opinfo->is_lease == false) {
if (lctx) {
pr_err("create context include lease\n");
diff --git a/fs/smb/server/oplock.h b/fs/smb/server/oplock.h
index f8da0bba766b..e6c4fbe5cf4e 100644
--- a/fs/smb/server/oplock.h
+++ b/fs/smb/server/oplock.h
@@ -133,5 +133,6 @@ int smb2_check_durable_oplock(struct ksmbd_conn *conn,
struct ksmbd_share_config *share,
struct ksmbd_file *fp,
struct lease_ctx_info *lctx,
+ struct ksmbd_user *user,
char *name);
#endif /* __KSMBD_OPLOCK_H */
diff --git a/fs/smb/server/server.c b/fs/smb/server/server.c
index 598601a4bf92..416b14267251 100644
--- a/fs/smb/server/server.c
+++ b/fs/smb/server/server.c
@@ -372,6 +372,7 @@ static void server_ctrl_handle_reset(struct server_ctrl_struct *ctrl)
{
ksmbd_ipc_soft_reset();
ksmbd_conn_transport_destroy();
+ ksmbd_stop_durable_scavenger();
server_conf_free();
server_conf_init();
WRITE_ONCE(server_conf.state, SERVER_STATE_STARTING_UP);
diff --git a/fs/smb/server/server.h b/fs/smb/server/server.h
index 48bd203abb44..e3a0f6c9c2c3 100644
--- a/fs/smb/server/server.h
+++ b/fs/smb/server/server.h
@@ -47,6 +47,7 @@ struct ksmbd_server_config {
char *conf[SERVER_CONF_WORK_GROUP + 1];
bool bind_interfaces_only;
+ struct task_struct *dh_task;
};
extern struct ksmbd_server_config server_conf;
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index d68fe617369e..04d4a784deaf 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -2994,7 +2994,8 @@ int smb2_open(struct ksmbd_work *work)
}
if (dh_info.reconnected == true) {
- rc = smb2_check_durable_oplock(conn, share, dh_info.fp, lc, name);
+ rc = smb2_check_durable_oplock(conn, share, dh_info.fp,
+ lc, sess->user, name);
if (rc) {
ksmbd_put_durable_fd(dh_info.fp);
goto err_out2;
@@ -3601,7 +3602,7 @@ int smb2_open(struct ksmbd_work *work)
SMB2_CREATE_GUID_SIZE);
if (dh_info.timeout)
fp->durable_timeout = min(dh_info.timeout,
- 300000);
+ DURABLE_HANDLE_MAX_TIMEOUT);
else
fp->durable_timeout = 60;
}
diff --git a/fs/smb/server/smb2pdu.h b/fs/smb/server/smb2pdu.h
index 2821e6c8298f..ad02d0a37602 100644
--- a/fs/smb/server/smb2pdu.h
+++ b/fs/smb/server/smb2pdu.h
@@ -75,6 +75,8 @@ struct create_durable_req_v2 {
__u8 CreateGuid[16];
} __packed;
+#define DURABLE_HANDLE_MAX_TIMEOUT 300000
+
struct create_durable_reconn_req {
struct create_context_hdr ccontext;
__u8 Name[8];
diff --git a/fs/smb/server/smbacl.c b/fs/smb/server/smbacl.c
index ff59217b4bea..e50a972fa476 100644
--- a/fs/smb/server/smbacl.c
+++ b/fs/smb/server/smbacl.c
@@ -643,8 +643,10 @@ static void set_posix_acl_entries_dacl(struct mnt_idmap *idmap,
ntace = (struct smb_ace *)((char *)pndace + *size);
ace_sz = fill_ace_for_sid(ntace, sid, ACCESS_ALLOWED, flags,
pace->e_perm, 0777);
- if (check_add_overflow(*size, ace_sz, size))
+ if (check_add_overflow(*size, ace_sz, size)) {
+ kfree(sid);
break;
+ }
(*num_aces)++;
if (pace->e_tag == ACL_USER)
ntace->access_req |=
@@ -655,8 +657,10 @@ static void set_posix_acl_entries_dacl(struct mnt_idmap *idmap,
ntace = (struct smb_ace *)((char *)pndace + *size);
ace_sz = fill_ace_for_sid(ntace, sid, ACCESS_ALLOWED,
0x03, pace->e_perm, 0777);
- if (check_add_overflow(*size, ace_sz, size))
+ if (check_add_overflow(*size, ace_sz, size)) {
+ kfree(sid);
break;
+ }
(*num_aces)++;
if (pace->e_tag == ACL_USER)
ntace->access_req |=
@@ -698,8 +702,10 @@ static void set_posix_acl_entries_dacl(struct mnt_idmap *idmap,
ntace = (struct smb_ace *)((char *)pndace + *size);
ace_sz = fill_ace_for_sid(ntace, sid, ACCESS_ALLOWED, 0x0b,
pace->e_perm, 0777);
- if (check_add_overflow(*size, ace_sz, size))
+ if (check_add_overflow(*size, ace_sz, size)) {
+ kfree(sid);
break;
+ }
(*num_aces)++;
if (pace->e_tag == ACL_USER)
ntace->access_req |=
diff --git a/fs/smb/server/vfs_cache.c b/fs/smb/server/vfs_cache.c
index eacc6ef41db0..5986c3b3251f 100644
--- a/fs/smb/server/vfs_cache.c
+++ b/fs/smb/server/vfs_cache.c
@@ -8,6 +8,8 @@
#include <linux/filelock.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>
+#include <linux/kthread.h>
+#include <linux/freezer.h>
#include "glob.h"
#include "vfs_cache.h"
@@ -16,7 +18,9 @@
#include "connection.h"
#include "mgmt/tree_connect.h"
#include "mgmt/user_session.h"
+#include "mgmt/user_config.h"
#include "smb_common.h"
+#include "server.h"
#define S_DEL_PENDING 1
#define S_DEL_ON_CLS 2
@@ -31,6 +35,10 @@ static struct ksmbd_file_table global_ft;
static atomic_long_t fd_limit;
static struct kmem_cache *filp_cache;
+static bool durable_scavenger_running;
+static DEFINE_MUTEX(durable_scavenger_lock);
+static wait_queue_head_t dh_wq;
+
void ksmbd_set_fd_limit(unsigned long limit)
{
limit = min(limit, get_max_files());
@@ -110,7 +118,7 @@ int ksmbd_query_inode_status(struct dentry *dentry)
return ret;
down_read(&ci->m_lock);
- if (ci->m_flags & (S_DEL_PENDING | S_DEL_ON_CLS))
+ if (ci->m_flags & S_DEL_PENDING)
ret = KSMBD_INODE_STATUS_PENDING_DELETE;
else
ret = KSMBD_INODE_STATUS_OK;
@@ -126,7 +134,7 @@ bool ksmbd_inode_pending_delete(struct ksmbd_file *fp)
int ret;
down_read(&ci->m_lock);
- ret = (ci->m_flags & (S_DEL_PENDING | S_DEL_ON_CLS));
+ ret = (ci->m_flags & S_DEL_PENDING);
up_read(&ci->m_lock);
return ret;
@@ -294,12 +302,20 @@ static void __ksmbd_inode_close(struct ksmbd_file *fp)
}
}
+ down_write(&ci->m_lock);
+ /* Promote S_DEL_ON_CLS to S_DEL_PENDING when close */
+ if (ci->m_flags & S_DEL_ON_CLS) {
+ ci->m_flags &= ~S_DEL_ON_CLS;
+ ci->m_flags |= S_DEL_PENDING;
+ }
+ up_write(&ci->m_lock);
+
if (atomic_dec_and_test(&ci->m_count)) {
bool do_unlink = false;
down_write(&ci->m_lock);
- if (ci->m_flags & (S_DEL_ON_CLS | S_DEL_PENDING)) {
- ci->m_flags &= ~(S_DEL_ON_CLS | S_DEL_PENDING);
+ if (ci->m_flags & S_DEL_PENDING) {
+ ci->m_flags &= ~S_DEL_PENDING;
do_unlink = true;
}
up_write(&ci->m_lock);
@@ -316,9 +332,24 @@ static void __ksmbd_remove_durable_fd(struct ksmbd_file *fp)
if (!has_file_id(fp->persistent_id))
return;
- write_lock(&global_ft.lock);
idr_remove(global_ft.idr, fp->persistent_id);
+ /*
+ * Clear persistent_id so a later __ksmbd_close_fd() that runs from a
+ * delayed putter (e.g. when a concurrent ksmbd_lookup_fd_inode()
+ * walker held the final reference) does not re-issue idr_remove() on
+ * an id that idr_alloc_cyclic() may have already handed out to a new
+ * durable handle.
+ */
+ fp->persistent_id = KSMBD_NO_FID;
+}
+
+static void ksmbd_remove_durable_fd(struct ksmbd_file *fp)
+{
+ write_lock(&global_ft.lock);
+ __ksmbd_remove_durable_fd(fp);
write_unlock(&global_ft.lock);
+ if (waitqueue_active(&dh_wq))
+ wake_up(&dh_wq);
}
static void __ksmbd_remove_fd(struct ksmbd_file_table *ft, struct ksmbd_file *fp)
@@ -341,7 +372,7 @@ static void __ksmbd_close_fd(struct ksmbd_file_table *ft, struct ksmbd_file *fp)
struct ksmbd_lock *smb_lock, *tmp_lock;
fd_limit_close();
- __ksmbd_remove_durable_fd(fp);
+ ksmbd_remove_durable_fd(fp);
if (ft)
__ksmbd_remove_fd(ft, fp);
@@ -369,6 +400,8 @@ static void __ksmbd_close_fd(struct ksmbd_file_table *ft, struct ksmbd_file *fp)
if (ksmbd_stream_fd(fp))
kfree(fp->stream.name);
+ kfree(fp->owner.name);
+
kmem_cache_free(filp_cache, fp);
}
@@ -400,6 +433,20 @@ static struct ksmbd_file *__ksmbd_lookup_fd(struct ksmbd_file_table *ft,
static void __put_fd_final(struct ksmbd_work *work, struct ksmbd_file *fp)
{
+ /*
+ * Detached durable fp -- session_fd_check() cleared fp->conn at
+ * preserve, so this fp is no longer tracked by any conn's
+ * stats.open_files_count. This happens when
+ * ksmbd_scavenger_dispose_dh() hands the final close off to an
+ * m_fp_list walker (e.g. ksmbd_lookup_fd_inode()) whose work->conn
+ * is unrelated to the conn that originally opened the handle; close
+ * via the NULL-ft path so we do not underflow that unrelated
+ * counter.
+ */
+ if (!fp->conn) {
+ __ksmbd_close_fd(NULL, fp);
+ return;
+ }
__ksmbd_close_fd(&work->sess->file_table, fp);
atomic_dec(&work->conn->stats.open_files_count);
}
@@ -515,7 +562,10 @@ struct ksmbd_file *ksmbd_lookup_durable_fd(unsigned long long id)
struct ksmbd_file *fp;
fp = __ksmbd_lookup_fd(&global_ft, id);
- if (fp && fp->conn) {
+ if (fp && (fp->conn ||
+ (fp->durable_scavenger_timeout &&
+ (fp->durable_scavenger_timeout <
+ jiffies_to_msecs(jiffies))))) {
ksmbd_put_durable_fd(fp);
fp = NULL;
}
@@ -677,11 +727,13 @@ void ksmbd_update_fstate(struct ksmbd_file_table *ft, struct ksmbd_file *fp,
}
static int
-__close_file_table_ids(struct ksmbd_file_table *ft,
+__close_file_table_ids(struct ksmbd_session *sess,
struct ksmbd_tree_connect *tcon,
bool (*skip)(struct ksmbd_tree_connect *tcon,
- struct ksmbd_file *fp))
+ struct ksmbd_file *fp,
+ struct ksmbd_user *user))
{
+ struct ksmbd_file_table *ft = &sess->file_table;
struct ksmbd_file *fp;
unsigned int id = 0;
int num = 0;
@@ -694,7 +746,7 @@ __close_file_table_ids(struct ksmbd_file_table *ft,
break;
}
- if (skip(tcon, fp) ||
+ if (skip(tcon, fp, sess->user) ||
!atomic_dec_and_test(&fp->refcount)) {
id++;
write_unlock(&ft->lock);
@@ -746,13 +798,232 @@ static inline bool is_reconnectable(struct ksmbd_file *fp)
}
static bool tree_conn_fd_check(struct ksmbd_tree_connect *tcon,
- struct ksmbd_file *fp)
+ struct ksmbd_file *fp,
+ struct ksmbd_user *user)
{
return fp->tcon != tcon;
}
+static bool ksmbd_durable_scavenger_alive(void)
+{
+ mutex_lock(&durable_scavenger_lock);
+ if (!durable_scavenger_running) {
+ mutex_unlock(&durable_scavenger_lock);
+ return false;
+ }
+ mutex_unlock(&durable_scavenger_lock);
+
+ if (kthread_should_stop())
+ return false;
+
+ if (idr_is_empty(global_ft.idr))
+ return false;
+
+ return true;
+}
+
+static void ksmbd_scavenger_dispose_dh(struct ksmbd_file *fp)
+{
+ /*
+ * Durable-preserved fp can remain linked on f_ci->m_fp_list for
+ * share-mode checks. Unlink it before final close; fp->node is not
+ * available as a scavenger-private list node because re-adding it to
+ * another list corrupts m_fp_list.
+ */
+ down_write(&fp->f_ci->m_lock);
+ list_del_init(&fp->node);
+ up_write(&fp->f_ci->m_lock);
+
+ /*
+ * Drop both the durable lifetime reference and the transient reference
+ * taken by the scavenger under global_ft.lock. If a concurrent
+ * ksmbd_lookup_fd_inode() (or any other m_fp_list walker) snatched fp
+ * before the unlink above, that holder owns the final close via
+ * ksmbd_fd_put() -> __ksmbd_close_fd(). Otherwise the scavenger is
+ * the last putter and finalises fp here.
+ */
+ if (atomic_sub_and_test(2, &fp->refcount))
+ __ksmbd_close_fd(NULL, fp);
+}
+
+static int ksmbd_durable_scavenger(void *dummy)
+{
+ struct ksmbd_file *fp = NULL;
+ struct ksmbd_file *expired_fp;
+ unsigned int id;
+ unsigned int min_timeout = 1;
+ bool found_fp_timeout;
+ unsigned long remaining_jiffies;
+
+ __module_get(THIS_MODULE);
+
+ set_freezable();
+ while (ksmbd_durable_scavenger_alive()) {
+ if (try_to_freeze())
+ continue;
+
+ remaining_jiffies = wait_event_timeout(dh_wq,
+ ksmbd_durable_scavenger_alive() == false,
+ __msecs_to_jiffies(min_timeout));
+ if (remaining_jiffies)
+ min_timeout = jiffies_to_msecs(remaining_jiffies);
+ else
+ min_timeout = DURABLE_HANDLE_MAX_TIMEOUT;
+
+ do {
+ expired_fp = NULL;
+ found_fp_timeout = false;
+
+ write_lock(&global_ft.lock);
+ idr_for_each_entry(global_ft.idr, fp, id) {
+ unsigned long durable_timeout;
+
+ if (!fp->durable_timeout)
+ continue;
+
+ if (atomic_read(&fp->refcount) > 1 ||
+ fp->conn)
+ continue;
+
+ found_fp_timeout = true;
+ if (fp->durable_scavenger_timeout <=
+ jiffies_to_msecs(jiffies)) {
+ __ksmbd_remove_durable_fd(fp);
+ /*
+ * Take a transient reference so fp
+ * cannot be freed by an in-flight
+ * ksmbd_lookup_fd_inode() that found
+ * it through f_ci->m_fp_list while we
+ * drop global_ft.lock and reach the
+ * m_fp_list unlink in
+ * ksmbd_scavenger_dispose_dh().
+ */
+ atomic_inc(&fp->refcount);
+ expired_fp = fp;
+ break;
+ }
+
+ durable_timeout =
+ fp->durable_scavenger_timeout -
+ jiffies_to_msecs(jiffies);
+
+ if (min_timeout > durable_timeout)
+ min_timeout = durable_timeout;
+ }
+ write_unlock(&global_ft.lock);
+
+ if (expired_fp)
+ ksmbd_scavenger_dispose_dh(expired_fp);
+ } while (expired_fp);
+
+ if (found_fp_timeout == false)
+ break;
+ }
+
+ mutex_lock(&durable_scavenger_lock);
+ durable_scavenger_running = false;
+ mutex_unlock(&durable_scavenger_lock);
+
+ module_put(THIS_MODULE);
+
+ return 0;
+}
+
+void ksmbd_launch_ksmbd_durable_scavenger(void)
+{
+ if (!(server_conf.flags & KSMBD_GLOBAL_FLAG_DURABLE_HANDLE))
+ return;
+
+ mutex_lock(&durable_scavenger_lock);
+ if (durable_scavenger_running == true) {
+ mutex_unlock(&durable_scavenger_lock);
+ return;
+ }
+
+ durable_scavenger_running = true;
+
+ server_conf.dh_task = kthread_run(ksmbd_durable_scavenger,
+ (void *)NULL, "ksmbd-durable-scavenger");
+ if (IS_ERR(server_conf.dh_task))
+ pr_err("cannot start conn thread, err : %ld\n",
+ PTR_ERR(server_conf.dh_task));
+ mutex_unlock(&durable_scavenger_lock);
+}
+
+void ksmbd_stop_durable_scavenger(void)
+{
+ if (!(server_conf.flags & KSMBD_GLOBAL_FLAG_DURABLE_HANDLE))
+ return;
+
+ mutex_lock(&durable_scavenger_lock);
+ if (!durable_scavenger_running) {
+ mutex_unlock(&durable_scavenger_lock);
+ return;
+ }
+
+ durable_scavenger_running = false;
+ if (waitqueue_active(&dh_wq))
+ wake_up(&dh_wq);
+ mutex_unlock(&durable_scavenger_lock);
+ kthread_stop(server_conf.dh_task);
+}
+
+/*
+ * ksmbd_vfs_copy_durable_owner - Copy owner info for durable reconnect
+ * @fp: ksmbd file pointer to store owner info
+ * @user: user pointer to copy from
+ *
+ * This function binds the current user's identity to the file handle
+ * to satisfy MS-SMB2 Step 8 (SecurityContext matching) during reconnect.
+ *
+ * Return: 0 on success, or negative error code on failure
+ */
+static int ksmbd_vfs_copy_durable_owner(struct ksmbd_file *fp,
+ struct ksmbd_user *user)
+{
+ if (!user)
+ return -EINVAL;
+
+ /* Duplicate the user name to ensure identity persistence */
+ fp->owner.name = kstrdup(user->name, GFP_KERNEL);
+ if (!fp->owner.name)
+ return -ENOMEM;
+
+ fp->owner.uid = user->uid;
+ fp->owner.gid = user->gid;
+
+ return 0;
+}
+
+/**
+ * ksmbd_vfs_compare_durable_owner - Verify if the requester is original owner
+ * @fp: existing ksmbd file pointer
+ * @user: user pointer of the reconnect requester
+ *
+ * Compares the UID, GID, and name of the current requester against the
+ * original owner stored in the file handle.
+ *
+ * Return: true if the user matches, false otherwise
+ */
+bool ksmbd_vfs_compare_durable_owner(struct ksmbd_file *fp,
+ struct ksmbd_user *user)
+{
+ if (!user || !fp->owner.name)
+ return false;
+
+ /* Check if the UID and GID match first (fast path) */
+ if (fp->owner.uid != user->uid || fp->owner.gid != user->gid)
+ return false;
+
+ /* Validate the account name to ensure the same SecurityContext */
+ if (strcmp(fp->owner.name, user->name))
+ return false;
+
+ return true;
+}
+
static bool session_fd_check(struct ksmbd_tree_connect *tcon,
- struct ksmbd_file *fp)
+ struct ksmbd_file *fp, struct ksmbd_user *user)
{
struct ksmbd_inode *ci;
struct oplock_info *op;
@@ -762,6 +1033,9 @@ static bool session_fd_check(struct ksmbd_tree_connect *tcon,
if (!is_reconnectable(fp))
return false;
+ if (ksmbd_vfs_copy_durable_owner(fp, user))
+ return false;
+
conn = fp->conn;
ci = fp->f_ci;
down_write(&ci->m_lock);
@@ -784,12 +1058,16 @@ static bool session_fd_check(struct ksmbd_tree_connect *tcon,
fp->tcon = NULL;
fp->volatile_id = KSMBD_NO_FID;
+ if (fp->durable_timeout)
+ fp->durable_scavenger_timeout =
+ jiffies_to_msecs(jiffies) + fp->durable_timeout;
+
return true;
}
void ksmbd_close_tree_conn_fds(struct ksmbd_work *work)
{
- int num = __close_file_table_ids(&work->sess->file_table,
+ int num = __close_file_table_ids(work->sess,
work->tcon,
tree_conn_fd_check);
@@ -798,7 +1076,7 @@ void ksmbd_close_tree_conn_fds(struct ksmbd_work *work)
void ksmbd_close_session_fds(struct ksmbd_work *work)
{
- int num = __close_file_table_ids(&work->sess->file_table,
+ int num = __close_file_table_ids(work->sess,
work->tcon,
session_fd_check);
@@ -816,11 +1094,12 @@ void ksmbd_free_global_file_table(void)
unsigned int id;
idr_for_each_entry(global_ft.idr, fp, id) {
- __ksmbd_remove_durable_fd(fp);
- kmem_cache_free(filp_cache, fp);
+ ksmbd_remove_durable_fd(fp);
+ __ksmbd_close_fd(NULL, fp);
}
- ksmbd_destroy_file_table(&global_ft);
+ idr_destroy(global_ft.idr);
+ kfree(global_ft.idr);
}
int ksmbd_validate_name_reconnect(struct ksmbd_share_config *share,
@@ -894,6 +1173,10 @@ int ksmbd_reopen_durable_fd(struct ksmbd_work *work, struct ksmbd_file *fp)
}
up_write(&ci->m_lock);
+ fp->owner.uid = fp->owner.gid = 0;
+ kfree(fp->owner.name);
+ fp->owner.name = NULL;
+
return 0;
}
@@ -908,12 +1191,14 @@ int ksmbd_init_file_table(struct ksmbd_file_table *ft)
return 0;
}
-void ksmbd_destroy_file_table(struct ksmbd_file_table *ft)
+void ksmbd_destroy_file_table(struct ksmbd_session *sess)
{
+ struct ksmbd_file_table *ft = &sess->file_table;
+
if (!ft->idr)
return;
- __close_file_table_ids(ft, NULL, session_fd_check);
+ __close_file_table_ids(sess, NULL, session_fd_check);
idr_destroy(ft->idr);
kfree(ft->idr);
ft->idr = NULL;
@@ -927,6 +1212,8 @@ int ksmbd_init_file_cache(void)
if (!filp_cache)
goto out;
+ init_waitqueue_head(&dh_wq);
+
return 0;
out:
diff --git a/fs/smb/server/vfs_cache.h b/fs/smb/server/vfs_cache.h
index 5a225e7055f1..79d85cf4e13b 100644
--- a/fs/smb/server/vfs_cache.h
+++ b/fs/smb/server/vfs_cache.h
@@ -67,6 +67,13 @@ enum {
FP_CLOSED
};
+/* Owner information for durable handle reconnect */
+struct durable_owner {
+ unsigned int uid;
+ unsigned int gid;
+ char *name;
+};
+
struct ksmbd_file {
struct file *filp;
u64 persistent_id;
@@ -101,6 +108,7 @@ struct ksmbd_file {
struct list_head lock_list;
int durable_timeout;
+ int durable_scavenger_timeout;
/* if ls is happening on directory, below is valid*/
struct ksmbd_readdir_data readdir_data;
@@ -110,6 +118,7 @@ struct ksmbd_file {
bool is_durable;
bool is_persistent;
bool is_resilient;
+ struct durable_owner owner;
};
static inline void set_ctx_actor(struct dir_context *ctx,
@@ -136,7 +145,7 @@ static inline bool ksmbd_stream_fd(struct ksmbd_file *fp)
}
int ksmbd_init_file_table(struct ksmbd_file_table *ft);
-void ksmbd_destroy_file_table(struct ksmbd_file_table *ft);
+void ksmbd_destroy_file_table(struct ksmbd_session *sess);
int ksmbd_close_fd(struct ksmbd_work *work, u64 id);
struct ksmbd_file *ksmbd_lookup_fd_fast(struct ksmbd_work *work, u64 id);
struct ksmbd_file *ksmbd_lookup_foreign_fd(struct ksmbd_work *work, u64 id);
@@ -152,6 +161,8 @@ struct ksmbd_file *ksmbd_lookup_fd_cguid(char *cguid);
struct ksmbd_file *ksmbd_lookup_fd_inode(struct dentry *dentry);
unsigned int ksmbd_open_durable_fd(struct ksmbd_file *fp);
struct ksmbd_file *ksmbd_open_fd(struct ksmbd_work *work, struct file *filp);
+void ksmbd_launch_ksmbd_durable_scavenger(void);
+void ksmbd_stop_durable_scavenger(void);
void ksmbd_close_tree_conn_fds(struct ksmbd_work *work);
void ksmbd_close_session_fds(struct ksmbd_work *work);
int ksmbd_close_inode_fds(struct ksmbd_work *work, struct inode *inode);
@@ -160,6 +171,8 @@ void ksmbd_free_global_file_table(void);
void ksmbd_set_fd_limit(unsigned long limit);
void ksmbd_update_fstate(struct ksmbd_file_table *ft, struct ksmbd_file *fp,
unsigned int state);
+bool ksmbd_vfs_compare_durable_owner(struct ksmbd_file *fp,
+ struct ksmbd_user *user);
/*
* INODE hash
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 138676463336..724e684ea261 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -151,7 +151,7 @@ static int internal_create_group(struct kobject *kobj, int update,
kernfs_get(kn);
error = create_files(kn, kobj, uid, gid, grp, update);
if (error) {
- if (grp->name)
+ if (grp->name && !update)
kernfs_remove(kn);
}
kernfs_put(kn);
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c
index cc364669d723..f1ebe4608457 100644
--- a/fs/zonefs/super.c
+++ b/fs/zonefs/super.c
@@ -627,10 +627,14 @@ static long zonefs_fname_to_fno(const struct qstr *fname)
return c - '0';
for (i = 0, rname = name + len - 1; i < len; i++, rname--) {
+ long digit;
+
c = *rname;
if (!isdigit(c))
return -ENOENT;
- fno += (c - '0') * shift;
+ digit = (c - '0') * shift;
+ if (check_add_overflow(fno, digit, &fno))
+ return -ENOENT;
shift *= 10;
}
diff --git a/include/asm-generic/kprobes.h b/include/asm-generic/kprobes.h
index 060eab094e5a..5290a2b2e15a 100644
--- a/include/asm-generic/kprobes.h
+++ b/include/asm-generic/kprobes.h
@@ -14,7 +14,7 @@ static unsigned long __used \
_kbl_addr_##fname = (unsigned long)fname;
# define NOKPROBE_SYMBOL(fname) __NOKPROBE_SYMBOL(fname)
/* Use this to forbid a kprobes attach on very low level functions */
-# define __kprobes __section(".kprobes.text")
+# define __kprobes notrace __section(".kprobes.text")
# define nokprobe_inline __always_inline
#else
# define NOKPROBE_SYMBOL(fname)
diff --git a/include/linux/device.h b/include/linux/device.h
index 8fb9bd71fcd0..2a9017eec15c 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -643,6 +643,8 @@ enum struct_device_flags {
* on. This shrinks the "Board Support Packages" (BSPs) and
* minimizes board-specific #ifdefs in drivers.
* @driver_data: Private pointer for driver specific info.
+ * @driver_override: Driver name to force a match. Do not touch directly; use
+ * device_set_driver_override() instead.
* @links: Links to suppliers and consumers of this device.
* @power: For device power management.
* See Documentation/driver-api/pm/devices.rst for details.
@@ -735,6 +737,10 @@ struct device {
core doesn't touch it */
void *driver_data; /* Driver data, set and get with
dev_set_drvdata/dev_get_drvdata */
+ struct {
+ const char *name;
+ spinlock_t lock;
+ } driver_override;
struct mutex mutex; /* mutex to synchronize calls to
* its driver.
*/
@@ -882,6 +888,54 @@ struct device_link {
#define kobj_to_dev(__kobj) container_of_const(__kobj, struct device, kobj)
+int __device_set_driver_override(struct device *dev, const char *s, size_t len);
+
+/**
+ * device_set_driver_override() - Helper to set or clear driver override.
+ * @dev: Device to change
+ * @s: NUL-terminated string, new driver name to force a match, pass empty
+ * string to clear it ("" or "\n", where the latter is only for sysfs
+ * interface).
+ *
+ * Helper to set or clear driver override of a device.
+ *
+ * Returns: 0 on success or a negative error code on failure.
+ */
+static inline int device_set_driver_override(struct device *dev, const char *s)
+{
+ return __device_set_driver_override(dev, s, s ? strlen(s) : 0);
+}
+
+/**
+ * device_has_driver_override() - Check if a driver override has been set.
+ * @dev: device to check
+ *
+ * Returns true if a driver override has been set for this device.
+ */
+static inline bool device_has_driver_override(struct device *dev)
+{
+ guard(spinlock)(&dev->driver_override.lock);
+ return !!dev->driver_override.name;
+}
+
+/**
+ * device_match_driver_override() - Match a driver against the device's driver_override.
+ * @dev: device to check
+ * @drv: driver to match against
+ *
+ * Returns > 0 if a driver override is set and matches the given driver, 0 if a
+ * driver override is set but does not match, or < 0 if a driver override is not
+ * set at all.
+ */
+static inline int device_match_driver_override(struct device *dev,
+ const struct device_driver *drv)
+{
+ guard(spinlock)(&dev->driver_override.lock);
+ if (dev->driver_override.name)
+ return !strcmp(dev->driver_override.name, drv->name);
+ return -1;
+}
+
/**
* device_iommu_mapped - Returns true when the device DMA is translated
* by an IOMMU
diff --git a/include/linux/device/bus.h b/include/linux/device/bus.h
index ae10c4322754..d43ce072d747 100644
--- a/include/linux/device/bus.h
+++ b/include/linux/device/bus.h
@@ -65,6 +65,9 @@ struct fwnode_handle;
* @iommu_ops: IOMMU specific operations for this bus, used to attach IOMMU
* driver implementations to a bus and allow the driver to do
* bus-specific setup
+ * @driver_override: Set to true if this bus supports the driver_override
+ * mechanism, which allows userspace to force a specific
+ * driver to bind to a device via a sysfs attribute.
* @need_parent_lock: When probing or removing a device on this bus, the
* device core should lock the device's parent.
*
@@ -106,6 +109,7 @@ struct bus_type {
const struct iommu_ops *iommu_ops;
+ bool driver_override;
bool need_parent_lock;
};
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index 76680d583852..735f6f334a98 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -193,6 +193,7 @@ struct fwnode_operations {
static inline void fwnode_init(struct fwnode_handle *fwnode,
const struct fwnode_operations *ops)
{
+ fwnode->secondary = NULL;
fwnode->ops = ops;
INIT_LIST_HEAD(&fwnode->consumers);
INIT_LIST_HEAD(&fwnode->suppliers);
diff --git a/include/linux/phy.h b/include/linux/phy.h
index a57e799b1de1..586973404ad4 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1857,6 +1857,7 @@ int genphy_c45_an_config_aneg(struct phy_device *phydev);
int genphy_c45_an_disable_aneg(struct phy_device *phydev);
int genphy_c45_read_mdix(struct phy_device *phydev);
int genphy_c45_pma_read_abilities(struct phy_device *phydev);
+int genphy_c45_pma_read_ext_abilities(struct phy_device *phydev);
int genphy_c45_pma_baset1_read_abilities(struct phy_device *phydev);
int genphy_c45_read_eee_abilities(struct phy_device *phydev);
int genphy_c45_pma_baset1_read_master_slave(struct phy_device *phydev);
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index 7a41c72c1959..8828b0d275d7 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -31,11 +31,6 @@ struct platform_device {
struct resource *resource;
const struct platform_device_id *id_entry;
- /*
- * Driver name to force a match. Do not set directly, because core
- * frees it. Use driver_set_override() to set or clear it.
- */
- const char *driver_override;
/* MFD cell pointer */
struct mfd_cell *mfd_cell;
diff --git a/include/linux/sched/task.h b/include/linux/sched/task.h
index 8dbecab4c400..fc19837c8083 100644
--- a/include/linux/sched/task.h
+++ b/include/linux/sched/task.h
@@ -227,4 +227,6 @@ static inline void task_unlock(struct task_struct *p)
spin_unlock(&p->alloc_lock);
}
+DEFINE_GUARD(task_lock, struct task_struct *, task_lock(_T), task_unlock(_T))
+
#endif /* _LINUX_SCHED_TASK_H */
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index ceb56b39c70f..90bc853cafb6 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -548,5 +548,31 @@ DEFINE_LOCK_GUARD_1(spinlock_irqsave, spinlock_t,
DEFINE_LOCK_GUARD_1_COND(spinlock_irqsave, _try,
spin_trylock_irqsave(_T->lock, _T->flags))
+DEFINE_LOCK_GUARD_1(read_lock, rwlock_t,
+ read_lock(_T->lock),
+ read_unlock(_T->lock))
+
+DEFINE_LOCK_GUARD_1(read_lock_irq, rwlock_t,
+ read_lock_irq(_T->lock),
+ read_unlock_irq(_T->lock))
+
+DEFINE_LOCK_GUARD_1(read_lock_irqsave, rwlock_t,
+ read_lock_irqsave(_T->lock, _T->flags),
+ read_unlock_irqrestore(_T->lock, _T->flags),
+ unsigned long flags)
+
+DEFINE_LOCK_GUARD_1(write_lock, rwlock_t,
+ write_lock(_T->lock),
+ write_unlock(_T->lock))
+
+DEFINE_LOCK_GUARD_1(write_lock_irq, rwlock_t,
+ write_lock_irq(_T->lock),
+ write_unlock_irq(_T->lock))
+
+DEFINE_LOCK_GUARD_1(write_lock_irqsave, rwlock_t,
+ write_lock_irqsave(_T->lock, _T->flags),
+ write_unlock_irqrestore(_T->lock, _T->flags),
+ unsigned long flags)
+
#undef __LINUX_INSIDE_SPINLOCK_H
#endif /* __LINUX_SPINLOCK_H */
diff --git a/include/linux/string.h b/include/linux/string.h
index ce137830a0b9..bbcaceb8fb6f 100644
--- a/include/linux/string.h
+++ b/include/linux/string.h
@@ -212,6 +212,18 @@ static inline void memcpy_flushcache(void *dst, const void *src, size_t cnt)
void *memchr_inv(const void *s, int c, size_t n);
char *strreplace(char *str, char old, char new);
+/**
+ * mem_is_zero - Check if an area of memory is all 0's.
+ * @s: The memory area
+ * @n: The size of the area
+ *
+ * Return: True if the area of memory is all 0's.
+ */
+static inline bool mem_is_zero(const void *s, size_t n)
+{
+ return !memchr_inv(s, 0, n);
+}
+
extern void kfree_const(const void *x);
extern char *kstrdup(const char *s, gfp_t gfp) __malloc;
diff --git a/include/net/af_unix.h b/include/net/af_unix.h
index b6eedf7650da..d2fa6d9f1e97 100644
--- a/include/net/af_unix.h
+++ b/include/net/af_unix.h
@@ -23,6 +23,7 @@ void unix_del_edges(struct scm_fp_list *fpl);
void unix_update_edges(struct unix_sock *receiver);
int unix_prepare_fpl(struct scm_fp_list *fpl);
void unix_destroy_fpl(struct scm_fp_list *fpl);
+void unix_peek_fpl(struct scm_fp_list *fpl);
void unix_gc(void);
void wait_for_unix_gc(struct scm_fp_list *fpl);
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index c25f9f4cac80..7673228cd697 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -380,6 +380,7 @@ void baswap(bdaddr_t *dst, const bdaddr_t *src);
struct bt_sock {
struct sock sk;
struct list_head accept_q;
+ spinlock_t accept_q_lock; /* protects accept_q */
struct sock *parent;
unsigned long flags;
void (*skb_msg_name)(struct sk_buff *, void *, int *);
diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h
index c81021ab07aa..2bd5c68e6943 100644
--- a/include/net/netfilter/nf_queue.h
+++ b/include/net/netfilter/nf_queue.h
@@ -12,6 +12,7 @@
struct nf_queue_entry {
struct list_head list;
struct sk_buff *skb;
+ struct net_device *skb_dev;
unsigned int id;
unsigned int hook_index; /* index in hook_entries->hook[] */
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index 2364c68df76c..e06dbddc2872 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -791,10 +791,8 @@ TRACE_EVENT(btrfs_sync_file,
TP_fast_assign(
struct dentry *dentry = file_dentry(file);
struct inode *inode = file_inode(file);
- struct dentry *parent = dget_parent(dentry);
- struct inode *parent_inode = d_inode(parent);
+ struct inode *parent_inode = d_inode(dentry->d_parent);
- dput(parent);
TP_fast_assign_fsid(btrfs_sb(inode->i_sb));
__entry->ino = btrfs_ino(BTRFS_I(inode));
__entry->parent = btrfs_ino(BTRFS_I(parent_inode));
diff --git a/kernel/irq_work.c b/kernel/irq_work.c
index 2f4fb336dda1..188721af8eb3 100644
--- a/kernel/irq_work.c
+++ b/kernel/irq_work.c
@@ -292,6 +292,12 @@ void irq_work_sync(struct irq_work *work)
!arch_irq_work_has_interrupt()) {
rcuwait_wait_event(&work->irqwait, !irq_work_is_busy(work),
TASK_UNINTERRUPTIBLE);
+ /*
+ * Ensure irq_work_single() does not access @work
+ * after removing IRQ_WORK_BUSY. It is always
+ * accessed within a RCU-read section.
+ */
+ synchronize_rcu();
return;
}
@@ -302,6 +308,7 @@ EXPORT_SYMBOL_GPL(irq_work_sync);
static void run_irq_workd(unsigned int cpu)
{
+ guard(rcu)();
irq_work_run_list(this_cpu_ptr(&lazy_list));
}
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index 3c7d122a37fb..6196a495d9c0 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -396,6 +396,34 @@ static int check_ptrace_options(unsigned long data)
return 0;
}
+static inline void ptrace_set_stopped(struct task_struct *task)
+{
+ guard(spinlock)(&task->sighand->siglock);
+
+ /*
+ * If the task is already STOPPED, set JOBCTL_TRAP_STOP and
+ * TRAPPING, and kick it so that it transits to TRACED. TRAPPING
+ * will be cleared if the child completes the transition or any
+ * event which clears the group stop states happens. We'll wait
+ * for the transition to complete before returning from this
+ * function.
+ *
+ * This hides STOPPED -> RUNNING -> TRACED transition from the
+ * attaching thread but a different thread in the same group can
+ * still observe the transient RUNNING state. IOW, if another
+ * thread's WNOHANG wait(2) on the stopped tracee races against
+ * ATTACH, the wait(2) may fail due to the transient RUNNING.
+ *
+ * The following task_is_stopped() test is safe as both transitions
+ * in and out of STOPPED are protected by siglock.
+ */
+ if (task_is_stopped(task) &&
+ task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING)) {
+ task->jobctl &= ~JOBCTL_STOPPED;
+ signal_wake_up_state(task, __TASK_STOPPED);
+ }
+}
+
static int ptrace_attach(struct task_struct *task, long request,
unsigned long addr,
unsigned long flags)
@@ -403,17 +431,17 @@ static int ptrace_attach(struct task_struct *task, long request,
bool seize = (request == PTRACE_SEIZE);
int retval;
- retval = -EIO;
if (seize) {
if (addr != 0)
- goto out;
+ return -EIO;
/*
* This duplicates the check in check_ptrace_options() because
* ptrace_attach() and ptrace_setoptions() have historically
* used different error codes for unknown ptrace options.
*/
if (flags & ~(unsigned long)PTRACE_O_MASK)
- goto out;
+ return -EIO;
+
retval = check_ptrace_options(flags);
if (retval)
return retval;
@@ -424,88 +452,54 @@ static int ptrace_attach(struct task_struct *task, long request,
audit_ptrace(task);
- retval = -EPERM;
if (unlikely(task->flags & PF_KTHREAD))
- goto out;
+ return -EPERM;
if (same_thread_group(task, current))
- goto out;
+ return -EPERM;
/*
* Protect exec's credential calculations against our interference;
* SUID, SGID and LSM creds get determined differently
* under ptrace.
*/
- retval = -ERESTARTNOINTR;
- if (mutex_lock_interruptible(&task->signal->cred_guard_mutex))
- goto out;
+ scoped_cond_guard (mutex_intr, return -ERESTARTNOINTR,
+ &task->signal->cred_guard_mutex) {
- task_lock(task);
- retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH_REALCREDS);
- task_unlock(task);
- if (retval)
- goto unlock_creds;
+ scoped_guard (task_lock, task) {
+ retval = __ptrace_may_access(task, PTRACE_MODE_ATTACH_REALCREDS);
+ if (retval)
+ return retval;
+ }
- write_lock_irq(&tasklist_lock);
- retval = -EPERM;
- if (unlikely(task->exit_state))
- goto unlock_tasklist;
- if (task->ptrace)
- goto unlock_tasklist;
+ scoped_guard (write_lock_irq, &tasklist_lock) {
+ if (unlikely(task->exit_state))
+ return -EPERM;
+ if (task->ptrace)
+ return -EPERM;
- task->ptrace = flags;
+ task->ptrace = flags;
- ptrace_link(task, current);
+ ptrace_link(task, current);
- /* SEIZE doesn't trap tracee on attach */
- if (!seize)
- send_sig_info(SIGSTOP, SEND_SIG_PRIV, task);
+ /* SEIZE doesn't trap tracee on attach */
+ if (!seize)
+ send_sig_info(SIGSTOP, SEND_SIG_PRIV, task);
- spin_lock(&task->sighand->siglock);
+ ptrace_set_stopped(task);
+ }
+ }
/*
- * If the task is already STOPPED, set JOBCTL_TRAP_STOP and
- * TRAPPING, and kick it so that it transits to TRACED. TRAPPING
- * will be cleared if the child completes the transition or any
- * event which clears the group stop states happens. We'll wait
- * for the transition to complete before returning from this
- * function.
- *
- * This hides STOPPED -> RUNNING -> TRACED transition from the
- * attaching thread but a different thread in the same group can
- * still observe the transient RUNNING state. IOW, if another
- * thread's WNOHANG wait(2) on the stopped tracee races against
- * ATTACH, the wait(2) may fail due to the transient RUNNING.
- *
- * The following task_is_stopped() test is safe as both transitions
- * in and out of STOPPED are protected by siglock.
+ * We do not bother to change retval or clear JOBCTL_TRAPPING
+ * if wait_on_bit() was interrupted by SIGKILL. The tracer will
+ * not return to user-mode, it will exit and clear this bit in
+ * __ptrace_unlink() if it wasn't already cleared by the tracee;
+ * and until then nobody can ptrace this task.
*/
- if (task_is_stopped(task) &&
- task_set_jobctl_pending(task, JOBCTL_TRAP_STOP | JOBCTL_TRAPPING)) {
- task->jobctl &= ~JOBCTL_STOPPED;
- signal_wake_up_state(task, __TASK_STOPPED);
- }
-
- spin_unlock(&task->sighand->siglock);
-
- retval = 0;
-unlock_tasklist:
- write_unlock_irq(&tasklist_lock);
-unlock_creds:
- mutex_unlock(&task->signal->cred_guard_mutex);
-out:
- if (!retval) {
- /*
- * We do not bother to change retval or clear JOBCTL_TRAPPING
- * if wait_on_bit() was interrupted by SIGKILL. The tracer will
- * not return to user-mode, it will exit and clear this bit in
- * __ptrace_unlink() if it wasn't already cleared by the tracee;
- * and until then nobody can ptrace this task.
- */
- wait_on_bit(&task->jobctl, JOBCTL_TRAPPING_BIT, TASK_KILLABLE);
- proc_ptrace_connector(task, PTRACE_ATTACH);
- }
+ wait_on_bit(&task->jobctl, JOBCTL_TRAPPING_BIT, TASK_KILLABLE);
+ proc_ptrace_connector(task, PTRACE_ATTACH);
- return retval;
+ return 0;
}
/**
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index a305d1488387..508edf1f3f1e 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -4392,6 +4392,7 @@ static void rb_iter_reset(struct ring_buffer_iter *iter)
iter->head_page = cpu_buffer->reader_page;
iter->head = cpu_buffer->reader_page->read;
iter->next_event = iter->head;
+ iter->missed_events = 0;
iter->cache_reader_page = iter->head_page;
iter->cache_read = cpu_buffer->read;
@@ -5002,10 +5003,7 @@ ring_buffer_peek(struct trace_buffer *buffer, int cpu, u64 *ts,
*/
bool ring_buffer_iter_dropped(struct ring_buffer_iter *iter)
{
- bool ret = iter->missed_events != 0;
-
- iter->missed_events = 0;
- return ret;
+ return iter->missed_events != 0;
}
EXPORT_SYMBOL_GPL(ring_buffer_iter_dropped);
@@ -5222,7 +5220,7 @@ void ring_buffer_iter_advance(struct ring_buffer_iter *iter)
unsigned long flags;
raw_spin_lock_irqsave(&cpu_buffer->reader_lock, flags);
-
+ iter->missed_events = 0;
rb_advance_iter(iter);
raw_spin_unlock_irqrestore(&cpu_buffer->reader_lock, flags);
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 597f47397c72..59115079c798 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -1354,10 +1354,8 @@ static const char *hist_field_name(struct hist_field *field,
len = snprintf(full_name, sizeof(full_name), "%s.%s.%s",
field->system, field->event_name,
field->name);
- if (len >= sizeof(full_name))
- return NULL;
-
- field_name = full_name;
+ if (len < sizeof(full_name))
+ field_name = full_name;
} else
field_name = field->name;
} else if (field->flags & HIST_FIELD_FL_TIMESTAMP)
diff --git a/kernel/trace/tracing_map.c b/kernel/trace/tracing_map.c
index 1921ade45be3..0e5b3ea49936 100644
--- a/kernel/trace/tracing_map.c
+++ b/kernel/trace/tracing_map.c
@@ -386,13 +386,11 @@ static void tracing_map_elt_init_fields(struct tracing_map_elt *elt)
}
}
-static void tracing_map_elt_free(struct tracing_map_elt *elt)
+static void __tracing_map_elt_free(struct tracing_map_elt *elt)
{
if (!elt)
return;
- if (elt->map->ops && elt->map->ops->elt_free)
- elt->map->ops->elt_free(elt);
kfree(elt->fields);
kfree(elt->vars);
kfree(elt->var_set);
@@ -400,6 +398,17 @@ static void tracing_map_elt_free(struct tracing_map_elt *elt)
kfree(elt);
}
+static void tracing_map_elt_free(struct tracing_map_elt *elt)
+{
+ if (!elt)
+ return;
+
+ /* Only objects initialized with alloc_elt() should be passed to free_elt().*/
+ if (elt->map->ops && elt->map->ops->elt_free)
+ elt->map->ops->elt_free(elt);
+ __tracing_map_elt_free(elt);
+}
+
static struct tracing_map_elt *tracing_map_elt_alloc(struct tracing_map *map)
{
struct tracing_map_elt *elt;
@@ -444,7 +453,7 @@ static struct tracing_map_elt *tracing_map_elt_alloc(struct tracing_map *map)
}
return elt;
free:
- tracing_map_elt_free(elt);
+ __tracing_map_elt_free(elt);
return ERR_PTR(err);
}
diff --git a/lib/kunit/Kconfig b/lib/kunit/Kconfig
index 68a6daec0aef..f5ba59037390 100644
--- a/lib/kunit/Kconfig
+++ b/lib/kunit/Kconfig
@@ -16,8 +16,9 @@ menuconfig KUNIT
if KUNIT
config KUNIT_DEBUGFS
- bool "KUnit - Enable /sys/kernel/debug/kunit debugfs representation" if !KUNIT_ALL_TESTS
- default KUNIT_ALL_TESTS
+ bool "KUnit - Enable /sys/kernel/debug/kunit debugfs representation"
+ depends on DEBUG_FS
+ default y
help
Enable debugfs representation for kunit. Currently this consists
of /sys/kernel/debug/kunit/<test_suite>/results files for each
diff --git a/lib/test_kprobes.c b/lib/test_kprobes.c
index 0648f7154f5c..cd7a452ab303 100644
--- a/lib/test_kprobes.c
+++ b/lib/test_kprobes.c
@@ -12,6 +12,12 @@
#define div_factor 3
+#define KP_CLEAR(_kp) \
+do { \
+ (_kp).addr = NULL; \
+ (_kp).flags = 0; \
+} while (0)
+
static u32 rand1, preh_val, posth_val;
static u32 (*target)(u32 value);
static u32 (*recursed_target)(u32 value);
@@ -125,10 +131,6 @@ static void test_kprobes(struct kunit *test)
current_test = test;
- /* addr and flags should be cleard for reusing kprobe. */
- kp.addr = NULL;
- kp.flags = 0;
-
KUNIT_EXPECT_EQ(test, 0, register_kprobes(kps, 2));
preh_val = 0;
posth_val = 0;
@@ -226,9 +228,6 @@ static void test_kretprobes(struct kunit *test)
struct kretprobe *rps[2] = {&rp, &rp2};
current_test = test;
- /* addr and flags should be cleard for reusing kprobe. */
- rp.kp.addr = NULL;
- rp.kp.flags = 0;
KUNIT_EXPECT_EQ(test, 0, register_kretprobes(rps, 2));
krph_val = 0;
@@ -290,8 +289,6 @@ static void test_stacktrace_on_kretprobe(struct kunit *test)
unsigned long myretaddr = (unsigned long)__builtin_return_address(0);
current_test = test;
- rp3.kp.addr = NULL;
- rp3.kp.flags = 0;
/*
* Run the stacktrace_driver() to record correct return address in
@@ -352,8 +349,6 @@ static void test_stacktrace_on_nested_kretprobe(struct kunit *test)
struct kretprobe *rps[2] = {&rp3, &rp4};
current_test = test;
- rp3.kp.addr = NULL;
- rp3.kp.flags = 0;
//KUNIT_ASSERT_NE(test, myretaddr, stacktrace_driver());
@@ -367,6 +362,18 @@ static void test_stacktrace_on_nested_kretprobe(struct kunit *test)
static int kprobes_test_init(struct kunit *test)
{
+ KP_CLEAR(kp);
+ KP_CLEAR(kp2);
+ KP_CLEAR(kp_missed);
+#ifdef CONFIG_KRETPROBES
+ KP_CLEAR(rp.kp);
+ KP_CLEAR(rp2.kp);
+#ifdef CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE
+ KP_CLEAR(rp3.kp);
+ KP_CLEAR(rp4.kp);
+#endif
+#endif
+
target = kprobe_target;
target2 = kprobe_target2;
recursed_target = kprobe_recursed_target;
diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c
index dd04bd38567a..e8bf79c0d344 100644
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -1539,6 +1539,7 @@ static int damon_sysfs_memcg_path_to_id(char *memcg_path, unsigned short *id)
if (damon_sysfs_memcg_path_eq(memcg, path, memcg_path)) {
*id = mem_cgroup_id(memcg);
found = true;
+ mem_cgroup_iter_break(NULL, memcg);
break;
}
}
diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 30deb7d73b2b..f614709e6cda 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -1224,6 +1224,7 @@ static void batadv_bla_purge_backbone_gw(struct batadv_priv *bat_priv, int now)
struct hlist_head *head;
struct batadv_hashtable *hash;
spinlock_t *list_lock; /* protects write access to the hash lists */
+ bool purged;
int i;
hash = bat_priv->bla.backbone_hash;
@@ -1234,30 +1235,45 @@ static void batadv_bla_purge_backbone_gw(struct batadv_priv *bat_priv, int now)
head = &hash->table[i];
list_lock = &hash->list_locks[i];
- spin_lock_bh(list_lock);
- hlist_for_each_entry_safe(backbone_gw, node_tmp,
- head, hash_entry) {
- if (now)
- goto purge_now;
- if (!batadv_has_timed_out(backbone_gw->lasttime,
- BATADV_BLA_BACKBONE_TIMEOUT))
- continue;
+ do {
+ purged = false;
- batadv_dbg(BATADV_DBG_BLA, backbone_gw->bat_priv,
- "%s(): backbone gw %pM timed out\n",
- __func__, backbone_gw->orig);
+ spin_lock_bh(list_lock);
+ hlist_for_each_entry_safe(backbone_gw, node_tmp,
+ head, hash_entry) {
+ if (now)
+ goto purge_now;
+ if (!batadv_has_timed_out(backbone_gw->lasttime,
+ BATADV_BLA_BACKBONE_TIMEOUT))
+ continue;
+
+ batadv_dbg(BATADV_DBG_BLA, backbone_gw->bat_priv,
+ "%s(): backbone gw %pM timed out\n",
+ __func__, backbone_gw->orig);
purge_now:
- /* don't wait for the pending request anymore */
- if (atomic_read(&backbone_gw->request_sent))
- atomic_dec(&bat_priv->bla.num_requests);
+ purged = true;
- batadv_bla_del_backbone_claims(backbone_gw);
+ /* don't wait for the pending request anymore */
+ if (atomic_read(&backbone_gw->request_sent))
+ atomic_dec(&bat_priv->bla.num_requests);
- hlist_del_rcu(&backbone_gw->hash_entry);
- batadv_backbone_gw_put(backbone_gw);
- }
- spin_unlock_bh(list_lock);
+ batadv_bla_del_backbone_claims(backbone_gw);
+
+ hlist_del_rcu(&backbone_gw->hash_entry);
+ break;
+ }
+ spin_unlock_bh(list_lock);
+
+ if (purged) {
+ /* reference for pending report_work */
+ if (cancel_work_sync(&backbone_gw->report_work))
+ batadv_backbone_gw_put(backbone_gw);
+
+ /* reference for hash_entry */
+ batadv_backbone_gw_put(backbone_gw);
+ }
+ } while (purged);
}
}
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 28a939d56090..c76bddbf816a 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -698,6 +698,9 @@ static bool batadv_dat_forward_data(struct batadv_priv *bat_priv,
goto free_orig;
tmp_skb = pskb_copy_for_clone(skb, GFP_ATOMIC);
+ if (!tmp_skb)
+ goto free_neigh;
+
if (!batadv_send_skb_prepare_unicast_4addr(bat_priv, tmp_skb,
cand[i].orig_node,
packet_subtype)) {
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index c120c7c6d25f..4c1931940341 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -17,6 +17,7 @@
#include <linux/lockdep.h>
#include <linux/minmax.h>
#include <linux/netdevice.h>
+#include <linux/overflow.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
@@ -81,9 +82,9 @@ void batadv_frag_purge_orig(struct batadv_orig_node *orig_node,
*
* Return: the maximum size of payload that can be fragmented.
*/
-static int batadv_frag_size_limit(void)
+static size_t batadv_frag_size_limit(void)
{
- int limit = BATADV_FRAG_MAX_FRAG_SIZE;
+ size_t limit = BATADV_FRAG_MAX_FRAG_SIZE;
limit -= sizeof(struct batadv_frag_packet);
limit *= BATADV_FRAG_MAX_FRAGMENTS;
@@ -144,7 +145,9 @@ static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,
struct batadv_frag_packet *frag_packet;
u8 bucket;
u16 seqno, hdr_size = sizeof(struct batadv_frag_packet);
+ bool overflow = false;
bool ret = false;
+ size_t data_len;
/* Linearize packet to avoid linearizing 16 packets in a row when doing
* the later merge. Non-linear merge should be added to remove this
@@ -154,6 +157,7 @@ static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,
goto err;
frag_packet = (struct batadv_frag_packet *)skb->data;
+ data_len = skb->len - hdr_size;
seqno = ntohs(frag_packet->seqno);
bucket = seqno % BATADV_FRAG_BUFFER_COUNT;
@@ -172,7 +176,7 @@ static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,
spin_lock_bh(&chain->lock);
if (batadv_frag_init_chain(chain, seqno)) {
hlist_add_head(&frag_entry_new->list, &chain->fragment_list);
- chain->size = skb->len - hdr_size;
+ chain->size = data_len;
chain->timestamp = jiffies;
chain->total_size = ntohs(frag_packet->total_size);
ret = true;
@@ -189,7 +193,11 @@ static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,
if (frag_entry_curr->no < frag_entry_new->no) {
hlist_add_before(&frag_entry_new->list,
&frag_entry_curr->list);
- chain->size += skb->len - hdr_size;
+
+ if (check_add_overflow(chain->size, data_len,
+ &chain->size))
+ overflow = true;
+
chain->timestamp = jiffies;
ret = true;
goto out;
@@ -202,13 +210,16 @@ static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,
/* Reached the end of the list, so insert after 'frag_entry_last'. */
if (likely(frag_entry_last)) {
hlist_add_behind(&frag_entry_new->list, &frag_entry_last->list);
- chain->size += skb->len - hdr_size;
+
+ if (check_add_overflow(chain->size, data_len, &chain->size))
+ overflow = true;
+
chain->timestamp = jiffies;
ret = true;
}
out:
- if (chain->size > batadv_frag_size_limit() ||
+ if (overflow || chain->size > batadv_frag_size_limit() ||
chain->total_size != ntohs(frag_packet->total_size) ||
chain->total_size > batadv_frag_size_limit()) {
/* Clear chain if total size of either the list or the packet
@@ -294,6 +305,31 @@ batadv_frag_merge_packets(struct hlist_head *chain)
return skb_out;
}
+/**
+ * batadv_skb_is_frag() - check if newly merged skb is gain a unicast packet
+ * @skb: newly merged skb
+ *
+ * Return: if newly skb is of type BATADV_UNICAST_FRAG
+ */
+static bool batadv_skb_is_frag(struct sk_buff *skb)
+{
+ struct batadv_ogm_packet *batadv_ogm_packet;
+
+ /* packet should hold at least type and version */
+ if (unlikely(!pskb_may_pull(skb, 2)))
+ return false;
+
+ batadv_ogm_packet = (struct batadv_ogm_packet *)skb->data;
+
+ if (batadv_ogm_packet->version != BATADV_COMPAT_VERSION)
+ return false;
+
+ if (batadv_ogm_packet->packet_type != BATADV_UNICAST_FRAG)
+ return false;
+
+ return true;
+}
+
/**
* batadv_frag_skb_buffer() - buffer fragment for later merge
* @skb: skb to buffer
@@ -327,6 +363,16 @@ bool batadv_frag_skb_buffer(struct sk_buff **skb,
if (!skb_out)
goto out_err;
+ /* fragment in fragment is not allowed. otherwise it is possible
+ * to exhaust the stack when receiving a matryoshka-style
+ * "fragments in a fragment packet"
+ */
+ if (batadv_skb_is_frag(skb_out)) {
+ kfree_skb(skb_out);
+ skb_out = NULL;
+ goto out_err;
+ }
+
out:
ret = true;
out_err:
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index d26124bc27e1..003b03ca31b4 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -479,10 +479,14 @@ void batadv_gw_node_delete(struct batadv_priv *bat_priv,
*/
void batadv_gw_node_free(struct batadv_priv *bat_priv)
{
+ struct batadv_gw_node *curr_gw;
struct batadv_gw_node *gw_node;
struct hlist_node *node_tmp;
spin_lock_bh(&bat_priv->gw.list_lock);
+ curr_gw = rcu_replace_pointer(bat_priv->gw.curr_gw, NULL, true);
+ batadv_gw_node_put(curr_gw);
+
hlist_for_each_entry_safe(gw_node, node_tmp,
&bat_priv->gw.gateway_list, list) {
hlist_del_init_rcu(&gw_node->list);
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 7388d2ad7b5d..97c075d0a002 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -823,8 +823,6 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
orig_node = container_of(rcu, struct batadv_orig_node, rcu);
- batadv_mcast_purge_orig(orig_node);
-
batadv_frag_purge_orig(orig_node, NULL);
kfree(orig_node->tt_buff);
@@ -878,6 +876,8 @@ void batadv_orig_node_release(struct kref *ref)
/* Free nc_nodes */
batadv_nc_purge_orig(orig_node->bat_priv, orig_node, NULL);
+ batadv_mcast_purge_orig(orig_node);
+
call_rcu(&orig_node->rcu, batadv_orig_node_free_rcu);
}
diff --git a/net/batman-adv/tp_meter.c b/net/batman-adv/tp_meter.c
index 87797969c220..04a83d6be45b 100644
--- a/net/batman-adv/tp_meter.c
+++ b/net/batman-adv/tp_meter.c
@@ -8,6 +8,7 @@
#include "main.h"
#include <linux/atomic.h>
+#include <linux/bug.h>
#include <linux/build_bug.h>
#include <linux/byteorder/generic.h>
#include <linux/cache.h>
@@ -418,11 +419,14 @@ static void batadv_tp_sender_cleanup(struct batadv_tp_vars *tp_vars)
static void batadv_tp_sender_end(struct batadv_priv *bat_priv,
struct batadv_tp_vars *tp_vars)
{
+ enum batadv_tp_meter_reason reason;
u32 session_cookie;
+ reason = atomic_read(&tp_vars->send_result);
+
batadv_dbg(BATADV_DBG_TP_METER, bat_priv,
"Test towards %pM finished..shutting down (reason=%d)\n",
- tp_vars->other_end, tp_vars->reason);
+ tp_vars->other_end, reason);
batadv_dbg(BATADV_DBG_TP_METER, bat_priv,
"Last timing stats: SRTT=%ums RTTVAR=%ums RTO=%ums\n",
@@ -435,7 +439,7 @@ static void batadv_tp_sender_end(struct batadv_priv *bat_priv,
session_cookie = batadv_tp_session_cookie(tp_vars->session,
tp_vars->icmp_uid);
- batadv_tp_batctl_notify(tp_vars->reason,
+ batadv_tp_batctl_notify(reason,
tp_vars->other_end,
bat_priv,
tp_vars->start_time,
@@ -451,10 +455,18 @@ static void batadv_tp_sender_end(struct batadv_priv *bat_priv,
static void batadv_tp_sender_shutdown(struct batadv_tp_vars *tp_vars,
enum batadv_tp_meter_reason reason)
{
- if (!atomic_dec_and_test(&tp_vars->sending))
- return;
+ atomic_cmpxchg(&tp_vars->send_result, 0, reason);
+}
- tp_vars->reason = reason;
+/**
+ * batadv_tp_sender_stopped() - check if tp session was stopped with reason
+ * @tp_vars: the private data of the current TP meter session
+ *
+ * Return: whether stop reason was found
+ */
+static bool batadv_tp_sender_stopped(struct batadv_tp_vars *tp_vars)
+{
+ return atomic_read(&tp_vars->send_result) != 0;
}
/**
@@ -484,7 +496,7 @@ static void batadv_tp_reset_sender_timer(struct batadv_tp_vars *tp_vars)
/* most of the time this function is invoked while normal packet
* reception...
*/
- if (unlikely(atomic_read(&tp_vars->sending) == 0))
+ if (unlikely(batadv_tp_sender_stopped(tp_vars)))
/* timer ref will be dropped in batadv_tp_sender_cleanup */
return;
@@ -504,7 +516,7 @@ static void batadv_tp_sender_timeout(struct timer_list *t)
struct batadv_tp_vars *tp_vars = from_timer(tp_vars, t, timer);
struct batadv_priv *bat_priv = tp_vars->bat_priv;
- if (atomic_read(&tp_vars->sending) == 0)
+ if (batadv_tp_sender_stopped(tp_vars))
return;
/* if the user waited long enough...shutdown the test */
@@ -663,7 +675,10 @@ static void batadv_tp_recv_ack(struct batadv_priv *bat_priv,
if (unlikely(!tp_vars))
return;
- if (unlikely(atomic_read(&tp_vars->sending) == 0))
+ if (unlikely(tp_vars->role != BATADV_TP_SENDER))
+ goto out;
+
+ if (unlikely(batadv_tp_sender_stopped(tp_vars)))
goto out;
/* old ACK? silently drop it.. */
@@ -829,21 +844,21 @@ static int batadv_tp_send(void *arg)
if (unlikely(tp_vars->role != BATADV_TP_SENDER)) {
err = BATADV_TP_REASON_DST_UNREACHABLE;
- tp_vars->reason = err;
+ batadv_tp_sender_shutdown(tp_vars, err);
goto out;
}
orig_node = batadv_orig_hash_find(bat_priv, tp_vars->other_end);
if (unlikely(!orig_node)) {
err = BATADV_TP_REASON_DST_UNREACHABLE;
- tp_vars->reason = err;
+ batadv_tp_sender_shutdown(tp_vars, err);
goto out;
}
primary_if = batadv_primary_if_get_selected(bat_priv);
if (unlikely(!primary_if)) {
err = BATADV_TP_REASON_DST_UNREACHABLE;
- tp_vars->reason = err;
+ batadv_tp_sender_shutdown(tp_vars, err);
goto out;
}
@@ -862,7 +877,7 @@ static int batadv_tp_send(void *arg)
queue_delayed_work(batadv_event_workqueue, &tp_vars->finish_work,
msecs_to_jiffies(tp_vars->test_length));
- while (atomic_read(&tp_vars->sending) != 0) {
+ while (!batadv_tp_sender_stopped(tp_vars)) {
if (unlikely(!batadv_tp_avail(tp_vars, payload_len))) {
batadv_tp_wait_available(tp_vars, payload_len);
continue;
@@ -885,8 +900,7 @@ static int batadv_tp_send(void *arg)
"Meter: %s() cannot send packets (%d)\n",
__func__, err);
/* ensure nobody else tries to stop the thread now */
- if (atomic_dec_and_test(&tp_vars->sending))
- tp_vars->reason = err;
+ batadv_tp_sender_shutdown(tp_vars, err);
break;
}
@@ -1008,7 +1022,7 @@ void batadv_tp_start(struct batadv_priv *bat_priv, const u8 *dst,
ether_addr_copy(tp_vars->other_end, dst);
kref_init(&tp_vars->refcount);
tp_vars->role = BATADV_TP_SENDER;
- atomic_set(&tp_vars->sending, 1);
+ atomic_set(&tp_vars->send_result, 0);
memcpy(tp_vars->session, session_id, sizeof(session_id));
tp_vars->icmp_uid = icmp_uid;
@@ -1100,12 +1114,16 @@ void batadv_tp_stop(struct batadv_priv *bat_priv, const u8 *dst,
if (!tp_vars) {
batadv_dbg(BATADV_DBG_TP_METER, bat_priv,
"Meter: trying to interrupt an already over connection\n");
- goto out;
+ goto out_put_orig_node;
}
+ if (unlikely(tp_vars->role != BATADV_TP_SENDER))
+ goto out_put_tp_vars;
+
batadv_tp_sender_shutdown(tp_vars, return_value);
+out_put_tp_vars:
batadv_tp_vars_put(tp_vars);
-out:
+out_put_orig_node:
batadv_orig_node_put(orig_node);
}
@@ -1156,6 +1174,9 @@ static void batadv_tp_receiver_shutdown(struct timer_list *t)
spin_unlock_bh(&tp_vars->unacked_lock);
/* drop reference of timer */
+ if (WARN_ON(atomic_xchg(&tp_vars->receiving, 0) != 1))
+ return;
+
batadv_tp_vars_put(tp_vars);
}
@@ -1374,6 +1395,7 @@ batadv_tp_init_recv(struct batadv_priv *bat_priv,
ether_addr_copy(tp_vars->other_end, icmp->orig);
tp_vars->role = BATADV_TP_RECEIVER;
+ atomic_set(&tp_vars->receiving, 1);
memcpy(tp_vars->session, icmp->session, sizeof(tp_vars->session));
tp_vars->last_recv = BATADV_TP_FIRST_SEQ;
tp_vars->bat_priv = bat_priv;
@@ -1546,8 +1568,12 @@ void batadv_tp_stop_all(struct batadv_priv *bat_priv)
break;
case BATADV_TP_RECEIVER:
batadv_tp_list_detach(tp_var);
- if (timer_shutdown_sync(&tp_var->timer))
- batadv_tp_vars_put(tp_var);
+ timer_shutdown_sync(&tp_var->timer);
+
+ if (atomic_xchg(&tp_var->receiving, 0) != 1)
+ break;
+
+ batadv_tp_vars_put(tp_var);
break;
}
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 788507b29f9a..957a70854157 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -295,7 +295,7 @@ struct batadv_frag_table_entry {
u16 seqno;
/** @size: accumulated size of packets in list */
- u16 size;
+ size_t size;
/** @total_size: expected size of the assembled packet */
u16 total_size;
@@ -446,7 +446,7 @@ struct batadv_orig_node {
* @tt_buff_len: length of the last tt changeset this node received
* from the orig node
*/
- s16 tt_buff_len;
+ u16 tt_buff_len;
/** @tt_buff_lock: lock that protects tt_buff and tt_buff_len */
spinlock_t tt_buff_lock;
@@ -994,7 +994,7 @@ struct batadv_priv_tt {
* @last_changeset_len: length of last tt changeset this host has
* generated
*/
- s16 last_changeset_len;
+ u16 last_changeset_len;
/**
* @last_changeset_lock: lock protecting last_changeset &
@@ -1388,11 +1388,14 @@ struct batadv_tp_vars {
/** @role: receiver/sender modi */
enum batadv_tp_meter_role role;
- /** @sending: sending binary semaphore: 1 if sending, 0 is not */
- atomic_t sending;
+ /**
+ * @send_result: 0 when sending is ongoing and otherwise
+ * enum batadv_tp_meter_reason
+ */
+ atomic_t send_result;
- /** @reason: reason for a stopped session */
- enum batadv_tp_meter_reason reason;
+ /** @receiving: receiving binary semaphore: 1 if receiving, 0 is not */
+ atomic_t receiving;
/** @finish_work: work item for the finishing procedure */
struct delayed_work finish_work;
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 0b4d0a8bd361..53a4792ae75d 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -151,6 +151,7 @@ struct sock *bt_sock_alloc(struct net *net, struct socket *sock,
sock_init_data(sock, sk);
INIT_LIST_HEAD(&bt_sk(sk)->accept_q);
+ spin_lock_init(&bt_sk(sk)->accept_q_lock);
sock_reset_flag(sk, SOCK_ZAPPED);
@@ -211,6 +212,7 @@ void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh)
{
const struct cred *old_cred;
struct pid *old_pid;
+ struct bt_sock *par = bt_sk(parent);
BT_DBG("parent %p, sk %p", parent, sk);
@@ -221,9 +223,13 @@ void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh)
else
lock_sock_nested(sk, SINGLE_DEPTH_NESTING);
- list_add_tail(&bt_sk(sk)->accept_q, &bt_sk(parent)->accept_q);
bt_sk(sk)->parent = parent;
+ spin_lock_bh(&par->accept_q_lock);
+ list_add_tail(&bt_sk(sk)->accept_q, &par->accept_q);
+ sk_acceptq_added(parent);
+ spin_unlock_bh(&par->accept_q_lock);
+
/* Copy credentials from parent since for incoming connections the
* socket is allocated by the kernel.
*/
@@ -241,8 +247,6 @@ void bt_accept_enqueue(struct sock *parent, struct sock *sk, bool bh)
bh_unlock_sock(sk);
else
release_sock(sk);
-
- sk_acceptq_added(parent);
}
EXPORT_SYMBOL(bt_accept_enqueue);
@@ -251,45 +255,72 @@ EXPORT_SYMBOL(bt_accept_enqueue);
*/
void bt_accept_unlink(struct sock *sk)
{
+ struct sock *parent = bt_sk(sk)->parent;
+
BT_DBG("sk %p state %d", sk, sk->sk_state);
+ spin_lock_bh(&bt_sk(parent)->accept_q_lock);
list_del_init(&bt_sk(sk)->accept_q);
- sk_acceptq_removed(bt_sk(sk)->parent);
+ sk_acceptq_removed(parent);
+ spin_unlock_bh(&bt_sk(parent)->accept_q_lock);
bt_sk(sk)->parent = NULL;
sock_put(sk);
}
EXPORT_SYMBOL(bt_accept_unlink);
+static struct sock *bt_accept_get(struct sock *parent, struct sock *sk)
+{
+ struct bt_sock *bt = bt_sk(parent);
+ struct sock *next = NULL;
+
+ /* accept_q is modified from child teardown paths too, so take a
+ * temporary reference before dropping the queue lock.
+ */
+ spin_lock_bh(&bt->accept_q_lock);
+
+ if (sk) {
+ if (bt_sk(sk)->parent != parent)
+ goto out;
+
+ if (!list_is_last(&bt_sk(sk)->accept_q, &bt->accept_q)) {
+ next = &list_next_entry(bt_sk(sk), accept_q)->sk;
+ sock_hold(next);
+ }
+ } else if (!list_empty(&bt->accept_q)) {
+ next = &list_first_entry(&bt->accept_q,
+ struct bt_sock, accept_q)->sk;
+ sock_hold(next);
+ }
+
+out:
+ spin_unlock_bh(&bt->accept_q_lock);
+ return next;
+}
+
struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock)
{
- struct bt_sock *s, *n;
- struct sock *sk;
+ struct sock *sk, *next;
BT_DBG("parent %p", parent);
restart:
- list_for_each_entry_safe(s, n, &bt_sk(parent)->accept_q, accept_q) {
- sk = (struct sock *)s;
-
+ for (sk = bt_accept_get(parent, NULL); sk; sk = next) {
/* Prevent early freeing of sk due to unlink and sock_kill */
- sock_hold(sk);
lock_sock(sk);
/* Check sk has not already been unlinked via
* bt_accept_unlink() due to serialisation caused by sk locking
*/
- if (!bt_sk(sk)->parent) {
+ if (bt_sk(sk)->parent != parent) {
BT_DBG("sk %p, already unlinked", sk);
release_sock(sk);
sock_put(sk);
- /* Restart the loop as sk is no longer in the list
- * and also avoid a potential infinite loop because
- * list_for_each_entry_safe() is not thread safe.
- */
goto restart;
}
+ next = bt_accept_get(parent, sk);
+
/* sk is safely in the parent list so reduce reference count */
sock_put(sk);
@@ -306,7 +337,19 @@ struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock)
if (newsock)
sock_graft(sk, newsock);
+ /* Hand the caller a reference taken while sk is
+ * still locked. bt_accept_unlink() just dropped
+ * the accept-queue reference; without this hold a
+ * concurrent teardown (e.g. l2cap_conn_del() ->
+ * l2cap_sock_kill()) could free sk between
+ * release_sock() and the caller using it. Every
+ * caller drops this with sock_put() when done.
+ */
+ sock_hold(sk);
+
release_sock(sk);
+ if (next)
+ sock_put(next);
return sk;
}
@@ -508,18 +551,28 @@ EXPORT_SYMBOL(bt_sock_stream_recvmsg);
static inline __poll_t bt_accept_poll(struct sock *parent)
{
- struct bt_sock *s, *n;
+ struct bt_sock *bt = bt_sk(parent);
+ struct bt_sock *s;
struct sock *sk;
+ __poll_t mask = 0;
+
+ spin_lock_bh(&bt->accept_q_lock);
+ list_for_each_entry(s, &bt->accept_q, accept_q) {
+ int state;
- list_for_each_entry_safe(s, n, &bt_sk(parent)->accept_q, accept_q) {
sk = (struct sock *)s;
- if (sk->sk_state == BT_CONNECTED ||
- (test_bit(BT_SK_DEFER_SETUP, &bt_sk(parent)->flags) &&
- sk->sk_state == BT_CONNECT2))
- return EPOLLIN | EPOLLRDNORM;
+ state = READ_ONCE(sk->sk_state);
+
+ if (state == BT_CONNECTED ||
+ (test_bit(BT_SK_DEFER_SETUP, &bt->flags) &&
+ state == BT_CONNECT2)) {
+ mask = EPOLLIN | EPOLLRDNORM;
+ break;
+ }
}
+ spin_unlock_bh(&bt->accept_q_lock);
- return 0;
+ return mask;
}
__poll_t bt_sock_poll(struct file *file, struct socket *sock,
diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index 38f542665f19..e125afe573fc 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -638,8 +638,8 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
goto failed;
}
- up_write(&bnep_session_sem);
strcpy(req->device, dev->name);
+ up_write(&bnep_session_sem);
return 0;
failed:
diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index 1469e9b69e63..1ad08e09b6c3 100644
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -692,6 +692,8 @@ static void iso_sock_cleanup_listen(struct sock *parent)
while ((sk = bt_accept_dequeue(parent, NULL))) {
iso_sock_close(sk);
iso_sock_kill(sk);
+ /* Drop the reference handed back by bt_accept_dequeue(). */
+ sock_put(sk);
}
/* If listening socket stands for a PA sync connection,
@@ -1146,8 +1148,13 @@ static int iso_sock_accept(struct socket *sock, struct socket *newsock,
}
ch = bt_accept_dequeue(sk, newsock);
- if (ch)
+ if (ch) {
+ /* Drop the bridging ref from bt_accept_dequeue();
+ * the grafted socket keeps ch alive from here.
+ */
+ sock_put(ch);
break;
+ }
if (!timeo) {
err = -EAGAIN;
@@ -2100,6 +2107,11 @@ void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
break;
case ISO_END:
+ if (!conn->rx_len) {
+ BT_ERR("Unexpected end frame (len %d)", skb->len);
+ goto drop;
+ }
+
skb_copy_from_linear_data(skb, skb_put(conn->rx_skb, skb->len),
skb->len);
conn->rx_len -= skb->len;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index fd727a2961fa..e5a21b714686 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -348,8 +348,13 @@ static int l2cap_sock_accept(struct socket *sock, struct socket *newsock,
}
nsk = bt_accept_dequeue(sk, newsock);
- if (nsk)
+ if (nsk) {
+ /* Drop the bridging ref from bt_accept_dequeue();
+ * the grafted socket keeps nsk alive from here.
+ */
+ sock_put(nsk);
break;
+ }
if (!timeo) {
err = -EAGAIN;
@@ -1441,22 +1446,54 @@ static void l2cap_sock_cleanup_listen(struct sock *parent)
BT_DBG("parent %p state %s", parent,
state_to_string(parent->sk_state));
- /* Close not yet accepted channels */
+ /* Close not yet accepted channels.
+ *
+ * bt_accept_dequeue() now returns sk with an extra reference held
+ * (taken while sk was still locked) so a concurrent l2cap_conn_del()
+ * -> l2cap_sock_kill() cannot free sk under us.
+ *
+ * cleanup_listen() runs under the parent sk lock, so unlike
+ * l2cap_sock_shutdown() we must NOT take conn->lock here: that would
+ * establish sk_lock -> conn->lock and invert the established
+ * conn->lock -> chan->lock -> sk_lock order (lockdep deadlock).
+ *
+ * Instead, briefly take the child sk lock to fetch and pin its chan.
+ * l2cap_conn_del() reaches the chan free only via
+ * l2cap_chan_del() -> l2cap_sock_teardown_cb(), which itself takes
+ * the child sk lock; holding it across l2cap_chan_hold_unless_zero()
+ * therefore guarantees the chan cannot be freed while we read and
+ * pin it (hold_unless_zero() additionally skips a chan already past
+ * its last reference). We then drop the sk lock before taking
+ * chan->lock, so sk and chan locks are never held together.
+ */
while ((sk = bt_accept_dequeue(parent, NULL))) {
- struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+ struct l2cap_chan *chan;
+
+ lock_sock_nested(sk, L2CAP_NESTING_NORMAL);
+ chan = l2cap_chan_hold_unless_zero(l2cap_pi(sk)->chan);
+ release_sock(sk);
+ if (!chan) {
+ /* l2cap_conn_del() already tearing this child down */
+ sock_put(sk);
+ continue;
+ }
BT_DBG("child chan %p state %s", chan,
state_to_string(chan->state));
- l2cap_chan_hold(chan);
l2cap_chan_lock(chan);
-
__clear_chan_timer(chan);
l2cap_chan_close(chan, ECONNRESET);
- l2cap_sock_kill(sk);
-
+ /* l2cap_conn_del() may already have killed this socket
+ * (it sets SOCK_DEAD); skip the duplicate to avoid a
+ * double sock_put()/l2cap_chan_put().
+ */
+ if (!sock_flag(sk, SOCK_DEAD))
+ l2cap_sock_kill(sk);
l2cap_chan_unlock(chan);
+
l2cap_chan_put(chan);
+ sock_put(sk);
}
}
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 1874d50e96aa..4271fba3245c 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -9140,9 +9140,15 @@ static int add_ext_adv_data(struct sock *sk, struct hci_dev *hdev, void *data,
struct adv_info *adv_instance;
int err = 0;
struct mgmt_pending_cmd *cmd;
+ u16 expected_len;
BT_DBG("%s", hdev->name);
+ expected_len = struct_size(cp, data, cp->adv_data_len + cp->scan_rsp_len);
+ if (expected_len != data_len)
+ return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_DATA,
+ MGMT_STATUS_INVALID_PARAMS);
+
hci_dev_lock(hdev);
adv_instance = hci_find_adv_instance(hdev, cp->instance);
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 1cf6543bdec5..bc2b22c2b3ae 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -180,6 +180,8 @@ static void rfcomm_sock_cleanup_listen(struct sock *parent)
while ((sk = bt_accept_dequeue(parent, NULL))) {
rfcomm_sock_close(sk);
rfcomm_sock_kill(sk);
+ /* Drop the reference handed back by bt_accept_dequeue(). */
+ sock_put(sk);
}
parent->sk_state = BT_CLOSED;
@@ -496,8 +498,13 @@ static int rfcomm_sock_accept(struct socket *sock, struct socket *newsock, int f
}
nsk = bt_accept_dequeue(sk, newsock);
- if (nsk)
+ if (nsk) {
+ /* Drop the bridging ref from bt_accept_dequeue();
+ * the grafted socket keeps nsk alive from here.
+ */
+ sock_put(nsk);
break;
+ }
if (!timeo) {
err = -EAGAIN;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 1c9c54f35988..3a3e1cf3c7c8 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -432,6 +432,8 @@ static void sco_sock_cleanup_listen(struct sock *parent)
while ((sk = bt_accept_dequeue(parent, NULL))) {
sco_sock_close(sk);
sco_sock_kill(sk);
+ /* Drop the reference handed back by bt_accept_dequeue(). */
+ sock_put(sk);
}
parent->sk_state = BT_CLOSED;
@@ -704,8 +706,13 @@ static int sco_sock_accept(struct socket *sock, struct socket *newsock,
}
ch = bt_accept_dequeue(sk, newsock);
- if (ch)
+ if (ch) {
+ /* Drop the bridging ref from bt_accept_dequeue();
+ * the grafted socket keeps ch alive from here.
+ */
+ sock_put(ch);
break;
+ }
if (!timeo) {
err = -EAGAIN;
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 4e75ec75c702..9c91b663bc3b 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -4641,10 +4641,31 @@ static void br_multicast_start_querier(struct net_bridge_mcast *brmctx,
rcu_read_unlock();
}
+static void br_multicast_enable_all_ports(struct net_bridge *br)
+{
+ struct net_bridge_port *port;
+
+ if (br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED))
+ return;
+
+ list_for_each_entry(port, &br->port_list, list)
+ __br_multicast_enable_port_ctx(&port->multicast_ctx);
+}
+
+static void br_multicast_disable_all_ports(struct net_bridge *br)
+{
+ struct net_bridge_port *port;
+
+ if (br_opt_get(br, BROPT_MCAST_VLAN_SNOOPING_ENABLED))
+ return;
+
+ list_for_each_entry(port, &br->port_list, list)
+ __br_multicast_disable_port_ctx(&port->multicast_ctx);
+}
+
int br_multicast_toggle(struct net_bridge *br, unsigned long val,
struct netlink_ext_ack *extack)
{
- struct net_bridge_port *port;
bool change_snoopers = false;
int err = 0;
@@ -4661,6 +4682,7 @@ int br_multicast_toggle(struct net_bridge *br, unsigned long val,
br_opt_toggle(br, BROPT_MULTICAST_ENABLED, !!val);
if (!br_opt_get(br, BROPT_MULTICAST_ENABLED)) {
change_snoopers = true;
+ br_multicast_disable_all_ports(br);
goto unlock;
}
@@ -4668,8 +4690,7 @@ int br_multicast_toggle(struct net_bridge *br, unsigned long val,
goto unlock;
br_multicast_open(br);
- list_for_each_entry(port, &br->port_list, list)
- __br_multicast_enable_port_ctx(&port->multicast_ctx);
+ br_multicast_enable_all_ports(br);
change_snoopers = true;
diff --git a/net/core/gro.c b/net/core/gro.c
index 0a9d4a3bb104..1555e6bb5c9d 100644
--- a/net/core/gro.c
+++ b/net/core/gro.c
@@ -110,6 +110,9 @@ int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb)
if (p->pp_recycle != skb->pp_recycle)
return -ETOOMANYREFS;
+ if (skb_zcopy(p) || skb_zcopy(skb))
+ return -ETOOMANYREFS;
+
if (unlikely(p->len + len >= netif_get_gro_max_size(p->dev, p) ||
NAPI_GRO_CB(skb)->flush))
return -E2BIG;
diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index 14208d32eeaf..403ad91c5c74 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -1267,12 +1267,19 @@ static int sk_psock_verdict_recv(struct sock *sk, struct sk_buff *skb)
static void sk_psock_verdict_data_ready(struct sock *sk)
{
const struct proto_ops *ops = NULL;
+ struct sk_psock *psock;
struct socket *sock;
int copied;
trace_sk_data_ready(sk);
rcu_read_lock();
+ psock = sk_psock(sk);
+ if (psock && tls_sw_has_ctx_rx(sk)) {
+ psock->saved_data_ready(sk);
+ rcu_read_unlock();
+ return;
+ }
sock = READ_ONCE(sk->sk_socket);
if (likely(sock))
ops = READ_ONCE(sock->ops);
@@ -1282,8 +1289,6 @@ static void sk_psock_verdict_data_ready(struct sock *sk)
copied = ops->read_skb(sk, sk_psock_verdict_recv);
if (copied >= 0) {
- struct sk_psock *psock;
-
rcu_read_lock();
psock = sk_psock(sk);
if (psock)
diff --git a/net/ethtool/bitset.c b/net/ethtool/bitset.c
index f0883357d12e..4691d6d0f2b7 100644
--- a/net/ethtool/bitset.c
+++ b/net/ethtool/bitset.c
@@ -91,7 +91,7 @@ static bool ethnl_bitmap32_not_zero(const u32 *map, unsigned int start,
u32 mask;
if (end <= start)
- return true;
+ return false;
if (start % 32) {
mask = ethnl_upper_bits(start);
@@ -104,11 +104,11 @@ static bool ethnl_bitmap32_not_zero(const u32 *map, unsigned int start,
start_word++;
}
- if (!memchr_inv(map + start_word, '\0',
- (end_word - start_word) * sizeof(u32)))
+ if (memchr_inv(map + start_word, '\0',
+ (end_word - start_word) * sizeof(u32)))
return true;
if (end % 32 == 0)
- return true;
+ return false;
return map[end_word] & ethnl_lower_bits(end);
}
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index a6f9192b4e53..c7a1f763e464 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -1115,7 +1115,7 @@ static void reqsk_timer_handler(struct timer_list *t)
}
drop:
- __inet_csk_reqsk_queue_drop(sk_listener, oreq, true);
+ __inet_csk_reqsk_queue_drop(oreq->rsk_listener, oreq, true);
reqsk_put(oreq);
}
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index 78cd5ee24448..359d00d74095 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -82,8 +82,8 @@ static int __init arptable_filter_init(void)
static void __exit arptable_filter_fini(void)
{
- unregister_pernet_subsys(&arptable_filter_net_ops);
xt_unregister_template(&packet_filter);
+ unregister_pernet_subsys(&arptable_filter_net_ops);
kfree(arpfilter_ops);
}
diff --git a/net/ipv4/netfilter/iptable_filter.c b/net/ipv4/netfilter/iptable_filter.c
index b9062f4552ac..c03c1a4ea7ca 100644
--- a/net/ipv4/netfilter/iptable_filter.c
+++ b/net/ipv4/netfilter/iptable_filter.c
@@ -101,8 +101,8 @@ static int __init iptable_filter_init(void)
static void __exit iptable_filter_fini(void)
{
- unregister_pernet_subsys(&iptable_filter_net_ops);
xt_unregister_template(&packet_filter);
+ unregister_pernet_subsys(&iptable_filter_net_ops);
kfree(filter_ops);
}
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c
index 3abb430af9e6..6a51e61b3556 100644
--- a/net/ipv4/netfilter/iptable_mangle.c
+++ b/net/ipv4/netfilter/iptable_mangle.c
@@ -134,8 +134,8 @@ static int __init iptable_mangle_init(void)
static void __exit iptable_mangle_fini(void)
{
- unregister_pernet_subsys(&iptable_mangle_net_ops);
xt_unregister_template(&packet_mangler);
+ unregister_pernet_subsys(&iptable_mangle_net_ops);
kfree(mangle_ops);
}
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index ca5e5b21587c..33330e13ea18 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/net/ipv4/netfilter/iptable_raw.c
@@ -100,9 +100,9 @@ static int __init iptable_raw_init(void)
static void __exit iptable_raw_fini(void)
{
+ xt_unregister_template(&packet_raw);
unregister_pernet_subsys(&iptable_raw_net_ops);
kfree(rawtable_ops);
- xt_unregister_template(&packet_raw);
}
module_init(iptable_raw_init);
diff --git a/net/ipv4/netfilter/iptable_security.c b/net/ipv4/netfilter/iptable_security.c
index d885443cb267..2b89adc1e575 100644
--- a/net/ipv4/netfilter/iptable_security.c
+++ b/net/ipv4/netfilter/iptable_security.c
@@ -89,9 +89,9 @@ static int __init iptable_security_init(void)
static void __exit iptable_security_fini(void)
{
+ xt_unregister_template(&security_table);
unregister_pernet_subsys(&iptable_security_net_ops);
kfree(sectbl_ops);
- xt_unregister_template(&security_table);
}
module_init(iptable_security_init);
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 39834b95ee59..b670364630a1 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -383,7 +383,7 @@ static int raw_send_hdrinc(struct sock *sk, struct flowi4 *fl4,
* in, reject the frame as invalid
*/
err = -EINVAL;
- if (iphlen > length)
+ if (iphlen > length || iphlen < sizeof(*iph))
goto error_free;
if (iphlen >= sizeof(*iph)) {
diff --git a/net/ipv6/netfilter/ip6t_hbh.c b/net/ipv6/netfilter/ip6t_hbh.c
index e7a3fb9355ee..450dd53846a2 100644
--- a/net/ipv6/netfilter/ip6t_hbh.c
+++ b/net/ipv6/netfilter/ip6t_hbh.c
@@ -168,6 +168,10 @@ static int hbh_mt6_check(const struct xt_mtchk_param *par)
pr_debug("unknown flags %X\n", optsinfo->invflags);
return -EINVAL;
}
+ if (optsinfo->optsnr > IP6T_OPTS_OPTSNR) {
+ pr_debug("too many supported opts specified\n");
+ return -EINVAL;
+ }
if (optsinfo->flags & IP6T_OPTS_NSTRICT) {
pr_debug("Not strict - not implemented");
diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c
index df785ebda0ca..16a38d56b2e5 100644
--- a/net/ipv6/netfilter/ip6table_filter.c
+++ b/net/ipv6/netfilter/ip6table_filter.c
@@ -100,8 +100,8 @@ static int __init ip6table_filter_init(void)
static void __exit ip6table_filter_fini(void)
{
- unregister_pernet_subsys(&ip6table_filter_net_ops);
xt_unregister_template(&packet_filter);
+ unregister_pernet_subsys(&ip6table_filter_net_ops);
kfree(filter_ops);
}
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index a88b2ce4a3cb..39f071666713 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -127,8 +127,8 @@ static int __init ip6table_mangle_init(void)
static void __exit ip6table_mangle_fini(void)
{
- unregister_pernet_subsys(&ip6table_mangle_net_ops);
xt_unregister_template(&packet_mangler);
+ unregister_pernet_subsys(&ip6table_mangle_net_ops);
kfree(mangle_ops);
}
diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index 08861d5d1f4d..01def8aa7a2e 100644
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -98,8 +98,8 @@ static int __init ip6table_raw_init(void)
static void __exit ip6table_raw_fini(void)
{
- unregister_pernet_subsys(&ip6table_raw_net_ops);
xt_unregister_template(&packet_raw);
+ unregister_pernet_subsys(&ip6table_raw_net_ops);
kfree(rawtable_ops);
}
diff --git a/net/ipv6/netfilter/ip6table_security.c b/net/ipv6/netfilter/ip6table_security.c
index 4df14a9bae78..66018b169b01 100644
--- a/net/ipv6/netfilter/ip6table_security.c
+++ b/net/ipv6/netfilter/ip6table_security.c
@@ -88,8 +88,8 @@ static int __init ip6table_security_init(void)
static void __exit ip6table_security_fini(void)
{
- unregister_pernet_subsys(&ip6table_security_net_ops);
xt_unregister_template(&security_table);
+ unregister_pernet_subsys(&ip6table_security_net_ops);
kfree(sectbl_ops);
}
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index 0fd353fec9fc..c3622f779d12 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -1481,7 +1481,7 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, peer);
- if (!sta) {
+ if (!sta || !sta->sta.tdls) {
mutex_unlock(&local->sta_mtx);
ret = -ENOLINK;
break;
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 4a5802126c8e..6e5570f97236 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -27,6 +27,7 @@ struct mptcp_pm_add_entry {
struct list_head list;
struct mptcp_addr_info addr;
u8 retrans_times;
+ bool timer_done;
struct timer_list add_timer;
struct mptcp_sock *sock;
struct rcu_head rcu;
@@ -295,28 +296,22 @@ static void mptcp_pm_add_timer(struct timer_list *timer)
struct mptcp_pm_add_entry *entry = from_timer(entry, timer, add_timer);
struct mptcp_sock *msk = entry->sock;
struct sock *sk = (struct sock *)msk;
- unsigned int timeout;
+ unsigned int timeout = 0;
pr_debug("msk=%p\n", msk);
- if (!msk)
- return;
-
- if (inet_sk_state_load(sk) == TCP_CLOSE)
- return;
-
- if (!entry->addr.id)
- return;
-
bh_lock_sock(sk);
+ if (unlikely(inet_sk_state_load(sk) == TCP_CLOSE))
+ goto out;
+
if (sock_owned_by_user(sk)) {
/* Try again later. */
- sk_reset_timer(sk, timer, jiffies + HZ / 20);
+ timeout = HZ / 20;
goto out;
}
if (mptcp_pm_should_add_signal_addr(msk)) {
- sk_reset_timer(sk, timer, jiffies + HZ);
+ timeout = HZ;
goto out;
}
@@ -333,9 +328,8 @@ static void mptcp_pm_add_timer(struct timer_list *timer)
entry->retrans_times++;
}
- if (entry->retrans_times < ADD_ADDR_RETRANS_MAX)
- sk_reset_timer(sk, timer,
- jiffies + timeout);
+ if (entry->retrans_times >= ADD_ADDR_RETRANS_MAX)
+ timeout = 0;
spin_unlock_bh(&msk->pm.lock);
@@ -343,8 +337,13 @@ static void mptcp_pm_add_timer(struct timer_list *timer)
mptcp_pm_subflow_established(msk);
out:
+ if (timeout)
+ sk_reset_timer(sk, timer, jiffies + timeout);
+ else
+ /* if sock_put calls sk_free: avoid waiting for this timer */
+ entry->timer_done = true;
bh_unlock_sock(sk);
- __sock_put(sk);
+ sock_put(sk);
}
struct mptcp_pm_add_entry *
@@ -408,6 +407,7 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk,
timer_setup(&add_entry->add_timer, mptcp_pm_add_timer, 0);
reset_timer:
+ add_entry->timer_done = false;
timeout = mptcp_get_add_addr_timeout(net);
if (timeout)
sk_reset_timer(sk, &add_entry->add_timer, jiffies + timeout);
@@ -428,7 +428,8 @@ void mptcp_pm_free_anno_list(struct mptcp_sock *msk)
spin_unlock_bh(&msk->pm.lock);
list_for_each_entry_safe(entry, tmp, &free_list, list) {
- sk_stop_timer_sync(sk, &entry->add_timer);
+ if (!entry->timer_done)
+ sk_stop_timer_sync(sk, &entry->add_timer);
kfree_rcu(entry, rcu);
}
}
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index aed6c04c7de6..ff1632d03a96 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -3451,7 +3451,6 @@ struct sock *mptcp_sk_clone_init(const struct sock *sk,
* uses the correct data
*/
mptcp_copy_inaddrs(nsk, ssk);
- __mptcp_propagate_sndbuf(nsk, ssk);
mptcp_rcv_space_init(msk, ssk);
msk->rcvq_space.time = mptcp_stamp();
@@ -4064,6 +4063,8 @@ static int mptcp_stream_accept(struct socket *sock, struct socket *newsock,
msk = mptcp_sk(newsk);
msk->in_accept_queue = 0;
+ __mptcp_propagate_sndbuf(newsk, mptcp_subflow_tcp_sock(subflow));
+
/* set ssk->sk_socket of accept()ed flows to mptcp socket.
* This is needed so NOSPACE flag can be set from tcp stack.
*/
diff --git a/net/netfilter/ipset/ip_set_hash_ipmark.c b/net/netfilter/ipset/ip_set_hash_ipmark.c
index a22ec1a6f6ec..e26ca2a370e3 100644
--- a/net/netfilter/ipset/ip_set_hash_ipmark.c
+++ b/net/netfilter/ipset/ip_set_hash_ipmark.c
@@ -150,7 +150,7 @@ hash_ipmark4_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
ip = ntohl(h->next.ip);
- for (; ip <= ip_to; ip++, i++) {
+ for (; ip <= ip_to; i++) {
e.ip = htonl(ip);
if (i > IPSET_MAX_RANGE) {
hash_ipmark4_data_next(&h->next, &e);
@@ -162,6 +162,10 @@ hash_ipmark4_uadt(struct ip_set *set, struct nlattr *tb[],
return ret;
ret = 0;
+
+ if (ip == ip_to)
+ break;
+ ip++;
}
return ret;
}
diff --git a/net/netfilter/ipset/ip_set_hash_ipport.c b/net/netfilter/ipset/ip_set_hash_ipport.c
index e977b5a9c48d..41ca24a22a02 100644
--- a/net/netfilter/ipset/ip_set_hash_ipport.c
+++ b/net/netfilter/ipset/ip_set_hash_ipport.c
@@ -186,7 +186,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
ip = ntohl(h->next.ip);
- for (; ip <= ip_to; ip++) {
+ for (; ip <= ip_to;) {
p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
: port;
for (; p <= port_to; p++, i++) {
@@ -203,6 +203,9 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
ret = 0;
}
+ if (ip == ip_to)
+ break;
+ ip++;
}
return ret;
}
diff --git a/net/netfilter/ipset/ip_set_hash_ipportip.c b/net/netfilter/ipset/ip_set_hash_ipportip.c
index 39a01934b153..b9ac2efaa15c 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportip.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportip.c
@@ -182,7 +182,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
if (retried)
ip = ntohl(h->next.ip);
- for (; ip <= ip_to; ip++) {
+ for (; ip <= ip_to;) {
p = retried && ip == ntohl(h->next.ip) ? ntohs(h->next.port)
: port;
for (; p <= port_to; p++, i++) {
@@ -199,6 +199,9 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
ret = 0;
}
+ if (ip == ip_to)
+ break;
+ ip++;
}
return ret;
}
diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index 5c6de605a9fb..2d6652d43199 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -274,7 +274,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
p = port;
ip2 = ip2_from;
}
- for (; ip <= ip_to; ip++) {
+ for (; ip <= ip_to;) {
e.ip = htonl(ip);
for (; p <= port_to; p++) {
e.port = htons(p);
@@ -298,6 +298,9 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
ip2 = ip2_from;
}
p = port;
+ if (ip == ip_to)
+ break;
+ ip++;
}
return ret;
}
diff --git a/net/netfilter/nf_queue.c b/net/netfilter/nf_queue.c
index e2f334f70281..d8b7cfda5926 100644
--- a/net/netfilter/nf_queue.c
+++ b/net/netfilter/nf_queue.c
@@ -60,6 +60,7 @@ static void nf_queue_entry_release_refs(struct nf_queue_entry *entry)
struct nf_hook_state *state = &entry->state;
/* Release those devices we held, or Alexey will kill me. */
+ dev_put(entry->skb_dev);
dev_put(state->in);
dev_put(state->out);
if (state->sk)
@@ -101,6 +102,7 @@ bool nf_queue_entry_get_refs(struct nf_queue_entry *entry)
if (state->sk && !refcount_inc_not_zero(&state->sk->sk_refcnt))
return false;
+ dev_hold(entry->skb_dev);
dev_hold(state->in);
dev_hold(state->out);
@@ -201,11 +203,11 @@ static int __nf_queue(struct sk_buff *skb, const struct nf_hook_state *state,
*entry = (struct nf_queue_entry) {
.skb = skb,
+ .skb_dev = skb->dev,
.state = *state,
.hook_index = index,
.size = sizeof(*entry) + route_key_size,
};
-
__nf_queue_entry_init_physdevs(entry);
if (!nf_queue_entry_get_refs(entry)) {
diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c
index 0ac0db71dbc6..d6bfb3cff6fd 100644
--- a/net/netfilter/nfnetlink_queue.c
+++ b/net/netfilter/nfnetlink_queue.c
@@ -972,6 +972,8 @@ dev_cmp(struct nf_queue_entry *entry, unsigned long ifindex)
if (physinif == ifindex || physoutif == ifindex)
return 1;
#endif
+ if (entry->skb_dev && entry->skb_dev->ifindex == ifindex)
+ return 1;
if (entry->state.in)
if (entry->state.in->ifindex == ifindex)
return 1;
diff --git a/net/netfilter/nft_inner.c b/net/netfilter/nft_inner.c
index 817ab978d24a..5e6a1d3702b1 100644
--- a/net/netfilter/nft_inner.c
+++ b/net/netfilter/nft_inner.c
@@ -156,7 +156,6 @@ static int nft_inner_parse_l2l3(const struct nft_inner *priv,
return -1;
if (fragoff == 0) {
- thoff = nhoff + sizeof(_ip6h);
ctx->flags |= NFT_PAYLOAD_CTX_INNER_TH;
ctx->inner_thoff = thoff;
ctx->l4proto = l4proto;
diff --git a/net/phonet/pep.c b/net/phonet/pep.c
index e14b2b2d3b5c..72c77a313c83 100644
--- a/net/phonet/pep.c
+++ b/net/phonet/pep.c
@@ -671,8 +671,23 @@ static int pep_do_rcv(struct sock *sk, struct sk_buff *skb)
/* Look for an existing pipe handle */
sknode = pep_find_pipe(&pn->hlist, &dst, pipe_handle);
- if (sknode)
- return sk_receive_skb(sknode, skb, 1);
+ if (sknode) {
+ int rc;
+
+ /* pep_do_rcv() runs from two contexts: from softirq via
+ * phonet_rcv() -> __sk_receive_skb() with BH disabled,
+ * and from process context via
+ * release_sock() -> __release_sock(), which drops
+ * the listener slock with spin_unlock_bh() before draining
+ * the backlog. The child pipe slock is taken below via
+ * bh_lock_sock_nested(), which does not itself disable BH, so
+ * disable BH here to keep both acquire contexts consistent.
+ */
+ local_bh_disable();
+ rc = sk_receive_skb(sknode, skb, 1);
+ local_bh_enable();
+ return rc;
+ }
switch (hdr->message_id) {
case PNS_PEP_CONNECT_REQ:
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 0e9a3b8da6a6..6629fd61be06 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -1378,7 +1378,8 @@ smc_v2_determine_accepted_chid(struct smc_clc_msg_accept_confirm *aclc,
int i;
for (i = 0; i < ini->ism_offered_cnt + 1; i++) {
- if (ini->ism_chid[i] == ntohs(aclc->d1.chid)) {
+ if (ini->ism_dev[i] &&
+ ini->ism_chid[i] == ntohs(aclc->d1.chid)) {
ini->ism_selected = i;
return 0;
}
diff --git a/net/smc/smc_tracepoint.h b/net/smc/smc_tracepoint.h
index 9fc5e586d24a..380451912c4f 100644
--- a/net/smc/smc_tracepoint.h
+++ b/net/smc/smc_tracepoint.h
@@ -51,7 +51,7 @@ DECLARE_EVENT_CLASS(smc_msg_event,
__field(const void *, smc)
__field(u64, net_cookie)
__field(size_t, len)
- __string(name, smc->conn.lnk->ibname)
+ __string(name, smc->conn.lnk ? smc->conn.lnk->ibname : "")
),
TP_fast_assign(
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index 937aa78eed0e..cdc415de6da2 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -789,23 +789,33 @@ static int tls_push_record(struct sock *sk, int flags,
i = msg_pl->sg.end;
sk_msg_iter_var_prev(i);
+ /* msg_pl->sg.data is a ring; data[MAX+1] is reserved for the wrap
+ * link (frags won't use it). 'i' is now the last filled entry:
+ *
+ * i end start
+ * v v v [ rsv ]
+ * [ d ][ d ][ ][ ]...[ ][ d ][ d ][ d ][chain]
+ * ^ END v
+ * `-----------------------------------------'
+ *
+ * Note that SGL does not allow chain-after-chain, so for TLS 1.3,
+ * we must make sure we don't create the wrap entry and then chain
+ * link to content_type immediately at index 0.
+ */
+ if (i < msg_pl->sg.start)
+ sg_chain(msg_pl->sg.data, ARRAY_SIZE(msg_pl->sg.data),
+ msg_pl->sg.data);
+
rec->content_type = record_type;
if (prot->version == TLS_1_3_VERSION) {
/* Add content type to end of message. No padding added */
sg_set_buf(&rec->sg_content_type, &rec->content_type, 1);
sg_mark_end(&rec->sg_content_type);
- sg_chain(msg_pl->sg.data, msg_pl->sg.end + 1,
- &rec->sg_content_type);
+ sg_chain(msg_pl->sg.data, i + 2, &rec->sg_content_type);
} else {
sg_mark_end(sk_msg_elem(msg_pl, i));
}
- if (msg_pl->sg.end < msg_pl->sg.start) {
- sg_chain(&msg_pl->sg.data[msg_pl->sg.start],
- MAX_SKB_FRAGS - msg_pl->sg.start + 1,
- msg_pl->sg.data);
- }
-
i = msg_pl->sg.start;
sg_chain(rec->sg_aead_in, 2, &msg_pl->sg.data[i]);
@@ -1356,9 +1366,14 @@ void tls_sw_splice_eof(struct socket *sock)
mutex_unlock(&tls_ctx->tx_lock);
}
+/* When has_copied is true the caller has already moved bytes to
+ * userspace. Report sk_err but leave it set so the next read
+ * surfaces it instead of a spurious EOF, otherwise sk_err is
+ * consumed via sock_error().
+ */
static int
tls_rx_rec_wait(struct sock *sk, struct sk_psock *psock, bool nonblock,
- bool released)
+ bool released, bool has_copied)
{
struct tls_context *tls_ctx = tls_get_ctx(sk);
struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
@@ -1372,8 +1387,11 @@ tls_rx_rec_wait(struct sock *sk, struct sk_psock *psock, bool nonblock,
if (!sk_psock_queue_empty(psock))
return 0;
- if (sk->sk_err)
+ if (sk->sk_err) {
+ if (has_copied)
+ return -READ_ONCE(sk->sk_err);
return sock_error(sk);
+ }
if (ret < 0)
return ret;
@@ -1409,7 +1427,7 @@ tls_rx_rec_wait(struct sock *sk, struct sk_psock *psock, bool nonblock,
}
if (unlikely(!tls_strp_msg_load(&ctx->strp, released)))
- return tls_rx_rec_wait(sk, psock, nonblock, false);
+ return tls_rx_rec_wait(sk, psock, nonblock, false, has_copied);
return 1;
}
@@ -2067,7 +2085,7 @@ int tls_sw_recvmsg(struct sock *sk,
int to_decrypt, chunk;
err = tls_rx_rec_wait(sk, psock, flags & MSG_DONTWAIT,
- released);
+ released, !!(decrypted + copied));
if (err <= 0) {
if (psock) {
chunk = sk_msg_recvmsg(sk, psock, msg, len,
@@ -2255,7 +2273,7 @@ ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos,
struct tls_decrypt_arg darg;
err = tls_rx_rec_wait(sk, NULL, flags & SPLICE_F_NONBLOCK,
- true);
+ true, false);
if (err <= 0)
goto splice_read_end;
@@ -2341,7 +2359,7 @@ int tls_sw_read_sock(struct sock *sk, read_descriptor_t *desc,
} else {
struct tls_decrypt_arg darg;
- err = tls_rx_rec_wait(sk, NULL, true, released);
+ err = tls_rx_rec_wait(sk, NULL, true, released, !!copied);
if (err <= 0)
goto read_sock_end;
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 87908ae74efb..8f785b2600ae 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1848,6 +1848,8 @@ static void unix_detach_fds(struct scm_cookie *scm, struct sk_buff *skb)
static void unix_peek_fds(struct scm_cookie *scm, struct sk_buff *skb)
{
scm->fp = scm_fp_dup(UNIXCB(skb).fp);
+
+ unix_peek_fpl(scm->fp);
}
static void unix_destruct_scm(struct sk_buff *skb)
@@ -2807,9 +2809,6 @@ static int unix_stream_read_generic(struct unix_stream_read_state *state,
goto out;
}
- if (sk->sk_type != SOCK_STREAM)
- return -EOPNOTSUPP;
-
mutex_lock(&u->iolock);
goto redo;
unlock:
diff --git a/net/unix/garbage.c b/net/unix/garbage.c
index 66fd606c43f4..1cdb54c61619 100644
--- a/net/unix/garbage.c
+++ b/net/unix/garbage.c
@@ -306,6 +306,25 @@ void unix_destroy_fpl(struct scm_fp_list *fpl)
unix_free_vertices(fpl);
}
+static bool gc_in_progress;
+static seqcount_t unix_peek_seq = SEQCNT_ZERO(unix_peek_seq);
+
+void unix_peek_fpl(struct scm_fp_list *fpl)
+{
+ static DEFINE_SPINLOCK(unix_peek_lock);
+
+ if (!fpl || !fpl->count_unix)
+ return;
+
+ if (!READ_ONCE(gc_in_progress))
+ return;
+
+ /* Invalidate the final refcnt check in unix_vertex_dead(). */
+ spin_lock(&unix_peek_lock);
+ raw_write_seqcount_barrier(&unix_peek_seq);
+ spin_unlock(&unix_peek_lock);
+}
+
static bool unix_vertex_dead(struct unix_vertex *vertex)
{
struct unix_edge *edge;
@@ -339,6 +358,36 @@ static bool unix_vertex_dead(struct unix_vertex *vertex)
return true;
}
+static LIST_HEAD(unix_visited_vertices);
+static unsigned long unix_vertex_grouped_index = UNIX_VERTEX_INDEX_MARK2;
+
+static bool unix_scc_dead(struct list_head *scc, bool fast)
+{
+ struct unix_vertex *vertex;
+ bool scc_dead = true;
+ unsigned int seq;
+
+ seq = read_seqcount_begin(&unix_peek_seq);
+
+ list_for_each_entry_reverse(vertex, scc, scc_entry) {
+ /* Don't restart DFS from this vertex. */
+ list_move_tail(&vertex->entry, &unix_visited_vertices);
+
+ /* Mark vertex as off-stack for __unix_walk_scc(). */
+ if (!fast)
+ vertex->index = unix_vertex_grouped_index;
+
+ if (scc_dead)
+ scc_dead = unix_vertex_dead(vertex);
+ }
+
+ /* If MSG_PEEK intervened, defer this SCC to the next round. */
+ if (read_seqcount_retry(&unix_peek_seq, seq))
+ return false;
+
+ return scc_dead;
+}
+
static void unix_collect_skb(struct list_head *scc, struct sk_buff_head *hitlist)
{
struct unix_vertex *vertex;
@@ -392,9 +441,6 @@ static bool unix_scc_cyclic(struct list_head *scc)
return false;
}
-static LIST_HEAD(unix_visited_vertices);
-static unsigned long unix_vertex_grouped_index = UNIX_VERTEX_INDEX_MARK2;
-
static void __unix_walk_scc(struct unix_vertex *vertex, unsigned long *last_index,
struct sk_buff_head *hitlist)
{
@@ -460,9 +506,7 @@ static void __unix_walk_scc(struct unix_vertex *vertex, unsigned long *last_inde
}
if (vertex->index == vertex->scc_index) {
- struct unix_vertex *v;
struct list_head scc;
- bool scc_dead = true;
/* SCC finalised.
*
@@ -471,18 +515,7 @@ static void __unix_walk_scc(struct unix_vertex *vertex, unsigned long *last_inde
*/
__list_cut_position(&scc, &vertex_stack, &vertex->scc_entry);
- list_for_each_entry_reverse(v, &scc, scc_entry) {
- /* Don't restart DFS from this vertex in unix_walk_scc(). */
- list_move_tail(&v->entry, &unix_visited_vertices);
-
- /* Mark vertex as off-stack. */
- v->index = unix_vertex_grouped_index;
-
- if (scc_dead)
- scc_dead = unix_vertex_dead(v);
- }
-
- if (scc_dead) {
+ if (unix_scc_dead(&scc, false)) {
unix_collect_skb(&scc, hitlist);
} else {
if (unix_vertex_max_scc_index < vertex->scc_index)
@@ -530,19 +563,11 @@ static void unix_walk_scc_fast(struct sk_buff_head *hitlist)
while (!list_empty(&unix_unvisited_vertices)) {
struct unix_vertex *vertex;
struct list_head scc;
- bool scc_dead = true;
vertex = list_first_entry(&unix_unvisited_vertices, typeof(*vertex), entry);
list_add(&scc, &vertex->scc_entry);
- list_for_each_entry_reverse(vertex, &scc, scc_entry) {
- list_move_tail(&vertex->entry, &unix_visited_vertices);
-
- if (scc_dead)
- scc_dead = unix_vertex_dead(vertex);
- }
-
- if (scc_dead)
+ if (unix_scc_dead(&scc, true))
unix_collect_skb(&scc, hitlist);
else if (!unix_graph_maybe_cyclic)
unix_graph_maybe_cyclic = unix_scc_cyclic(&scc);
@@ -553,8 +578,6 @@ static void unix_walk_scc_fast(struct sk_buff_head *hitlist)
list_replace_init(&unix_visited_vertices, &unix_unvisited_vertices);
}
-static bool gc_in_progress;
-
static void __unix_gc(struct work_struct *work)
{
struct sk_buff_head hitlist;
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index f5eb68145ca1..d4ff9506eaf6 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -1157,7 +1157,7 @@ virtio_transport_recv_connecting(struct sock *sk,
return err;
}
-static void
+static bool
virtio_transport_recv_enqueue(struct vsock_sock *vsk,
struct sk_buff *skb)
{
@@ -1172,10 +1172,8 @@ virtio_transport_recv_enqueue(struct vsock_sock *vsk,
spin_lock_bh(&vvs->rx_lock);
can_enqueue = virtio_transport_inc_rx_pkt(vvs, len);
- if (!can_enqueue) {
- free_pkt = true;
+ if (!can_enqueue)
goto out;
- }
if (le32_to_cpu(hdr->flags) & VIRTIO_VSOCK_SEQ_EOM)
vvs->msg_count++;
@@ -1213,6 +1211,8 @@ virtio_transport_recv_enqueue(struct vsock_sock *vsk,
spin_unlock_bh(&vvs->rx_lock);
if (free_pkt)
kfree_skb(skb);
+
+ return can_enqueue;
}
static int
@@ -1225,7 +1225,17 @@ virtio_transport_recv_connected(struct sock *sk,
switch (le16_to_cpu(hdr->op)) {
case VIRTIO_VSOCK_OP_RW:
- virtio_transport_recv_enqueue(vsk, skb);
+ if (!virtio_transport_recv_enqueue(vsk, skb)) {
+ /* There is no more space to queue the packet, so let's
+ * close the connection; otherwise, we'll lose data.
+ */
+ (void)virtio_transport_reset(vsk, skb);
+ virtio_transport_do_close(vsk, true);
+ sk->sk_err = ENOBUFS;
+ sk_error_report(sk);
+ vsock_remove_sock(vsk);
+ break;
+ }
vsock_data_ready(sk);
return err;
case VIRTIO_VSOCK_OP_CREDIT_REQUEST:
diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index aca3132689cf..4cd11f355e9d 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -1156,7 +1156,7 @@ vmci_transport_recv_connecting_server(struct sock *listener,
/* Close and cleanup the connection. */
vmci_transport_send_reset(pending, pkt);
skerr = EPROTO;
- err = pkt->type == VMCI_TRANSPORT_PACKET_TYPE_RST ? 0 : -EINVAL;
+ err = -EINVAL;
goto destroy;
}
diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index c1d64e250454..b12508188a18 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -2300,6 +2300,9 @@ size_t cfg80211_merge_profile(const u8 *ie, size_t ielen,
memcpy(merged_ie + copied_len, next_sub->data,
next_sub->datalen);
copied_len += next_sub->datalen;
+
+ mbssid_elem = next_mbssid;
+ sub_elem = next_sub;
}
return copied_len;
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index f331725d5a37..df2580072cfe 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -1109,6 +1109,7 @@ key_ref_t find_key_to_update(key_ref_t keyring_ref,
kenter("{%d},{%s,%s}",
keyring->serial, index_key->type->name, index_key->description);
+ guard(rcu)();
object = assoc_array_find(&keyring->keys, &keyring_assoc_array_ops,
index_key);
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index a11cd7d6295f..5d455bedb7c9 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -2074,6 +2074,9 @@ static int interleaved_copy(struct snd_pcm_substream *substream,
off = frames_to_bytes(runtime, off);
frames = frames_to_bytes(runtime, frames);
+ if (!data)
+ return fill_silence(substream, 0, hwoff, NULL, frames);
+
return do_transfer(substream, 0, hwoff, data + off, frames, transfer,
in_kernel);
}
diff --git a/sound/core/seq/seq_ump_client.c b/sound/core/seq/seq_ump_client.c
index 55923ee6c97a..914837929686 100644
--- a/sound/core/seq/seq_ump_client.c
+++ b/sound/core/seq/seq_ump_client.c
@@ -37,6 +37,7 @@ struct seq_ump_client {
struct snd_ump_endpoint *ump; /* assigned endpoint */
int seq_client; /* sequencer client id */
int opened[2]; /* current opens for each direction */
+ rwlock_t output_lock; /* protects out_rfile output access */
struct snd_rawmidi_file out_rfile; /* rawmidi for output */
struct seq_ump_input_buffer input; /* input parser context */
void *ump_info[SNDRV_UMP_MAX_BLOCKS + 1]; /* shadow of seq client ump_info */
@@ -88,6 +89,7 @@ static int seq_ump_process_event(struct snd_seq_event *ev, int direct,
unsigned char type;
int len;
+ guard(read_lock_irqsave)(&client->output_lock);
substream = client->out_rfile.output;
if (!substream)
return -ENODEV;
@@ -106,33 +108,41 @@ static int seq_ump_process_event(struct snd_seq_event *ev, int direct,
static int seq_ump_client_open(struct seq_ump_client *client, int dir)
{
struct snd_ump_endpoint *ump = client->ump;
- int err = 0;
+ struct snd_rawmidi_file rfile = {};
+ int err;
- mutex_lock(&ump->open_mutex);
+ guard(mutex)(&ump->open_mutex);
if (dir == STR_OUT && !client->opened[dir]) {
err = snd_rawmidi_kernel_open(&ump->core, 0,
SNDRV_RAWMIDI_LFLG_OUTPUT |
SNDRV_RAWMIDI_LFLG_APPEND,
- &client->out_rfile);
+ &rfile);
if (err < 0)
- goto unlock;
+ return err;
+ scoped_guard(write_lock_irqsave, &client->output_lock)
+ client->out_rfile = rfile;
}
client->opened[dir]++;
- unlock:
- mutex_unlock(&ump->open_mutex);
- return err;
+ return 0;
}
/* close the rawmidi */
static int seq_ump_client_close(struct seq_ump_client *client, int dir)
{
struct snd_ump_endpoint *ump = client->ump;
-
- mutex_lock(&ump->open_mutex);
- if (!--client->opened[dir])
- if (dir == STR_OUT)
- snd_rawmidi_kernel_release(&client->out_rfile);
- mutex_unlock(&ump->open_mutex);
+ struct snd_rawmidi_file rfile = {};
+
+ guard(mutex)(&ump->open_mutex);
+ if (!--client->opened[dir]) {
+ if (dir == STR_OUT) {
+ scoped_guard(write_lock_irqsave, &client->output_lock) {
+ rfile = client->out_rfile;
+ client->out_rfile = (struct snd_rawmidi_file){};
+ }
+ if (rfile.rmidi)
+ snd_rawmidi_kernel_release(&rfile);
+ }
+ }
return 0;
}
@@ -433,6 +443,7 @@ static int snd_seq_ump_probe(struct device *_dev)
INIT_WORK(&client->group_notify_work, handle_group_notify);
client->ump = ump;
+ rwlock_init(&client->output_lock);
client->seq_client =
snd_seq_create_kernel_client(card, ump->core.device,
diff --git a/sound/pci/asihpi/hpicmn.c b/sound/pci/asihpi/hpicmn.c
index 7d1abaedb46a..f06f44b13d3d 100644
--- a/sound/pci/asihpi/hpicmn.c
+++ b/sound/pci/asihpi/hpicmn.c
@@ -276,6 +276,12 @@ static short find_control(u16 control_index,
return 0;
}
+ if (control_index >= p_cache->control_count) {
+ HPI_DEBUG_LOG(VERBOSE, "control_index out of bounce %d\n",
+ control_index);
+ return 0;
+ }
+
*pI = p_cache->p_info[control_index];
if (!*pI) {
HPI_DEBUG_LOG(VERBOSE, "Uncached Control %d\n",
diff --git a/sound/pci/hda/cs35l56_hda.c b/sound/pci/hda/cs35l56_hda.c
index bae7b1d592c6..afb397c32361 100644
--- a/sound/pci/hda/cs35l56_hda.c
+++ b/sound/pci/hda/cs35l56_hda.c
@@ -855,6 +855,7 @@ static int cs35l56_hda_read_acpi(struct cs35l56_hda *cs35l56, int id)
return -ENODEV;
}
ACPI_COMPANION_SET(cs35l56->base.dev, adev);
+ acpi_dev_put(adev);
}
property = "cirrus,dev-index";
diff --git a/sound/soc/codecs/cs35l56-sdw.c b/sound/soc/codecs/cs35l56-sdw.c
index b433266b7844..7d893d1243a2 100644
--- a/sound/soc/codecs/cs35l56-sdw.c
+++ b/sound/soc/codecs/cs35l56-sdw.c
@@ -524,10 +524,11 @@ static int cs35l56_sdw_remove(struct sdw_slave *peripheral)
/* Disable SoundWire interrupts */
cs35l56->sdw_irq_no_unmask = true;
- cancel_work_sync(&cs35l56->sdw_irq_work);
+ flush_work(&cs35l56->sdw_irq_work);
sdw_write_no_pm(peripheral, CS35L56_SDW_GEN_INT_MASK_1, 0);
sdw_read_no_pm(peripheral, CS35L56_SDW_GEN_INT_STAT_1);
sdw_write_no_pm(peripheral, CS35L56_SDW_GEN_INT_STAT_1, 0xFF);
+ flush_work(&cs35l56->sdw_irq_work);
cs35l56_remove(cs35l56);
diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 3af48c9b5ab7..925782e67673 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1364,10 +1364,10 @@ static int i2s_create_secondary_device(struct samsung_i2s_priv *priv)
if (!pdev_sec)
return -ENOMEM;
- pdev_sec->driver_override = kstrdup("samsung-i2s", GFP_KERNEL);
- if (!pdev_sec->driver_override) {
+ ret = device_set_driver_override(&pdev_sec->dev, "samsung-i2s");
+ if (ret) {
platform_device_put(pdev_sec);
- return -ENOMEM;
+ return ret;
}
ret = platform_device_add(pdev_sec);
diff --git a/sound/usb/misc/ua101.c b/sound/usb/misc/ua101.c
index 303c7a00489e..4d23ec97475d 100644
--- a/sound/usb/misc/ua101.c
+++ b/sound/usb/misc/ua101.c
@@ -914,8 +914,9 @@ find_format_descriptor(struct usb_interface *interface)
struct uac_format_type_i_discrete_descriptor *desc;
desc = (struct uac_format_type_i_discrete_descriptor *)extra;
- if (desc->bLength > extralen) {
- dev_err(&interface->dev, "descriptor overflow\n");
+ if (desc->bLength < sizeof(struct usb_descriptor_header) ||
+ desc->bLength > extralen) {
+ dev_err(&interface->dev, "invalid descriptor length\n");
return NULL;
}
if (desc->bLength == UAC_FORMAT_TYPE_I_DISCRETE_DESC_SIZE(1) &&
prev parent reply other threads:[~2026-06-01 16:07 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-01 16:05 Greg Kroah-Hartman
2026-06-01 16:05 ` Greg Kroah-Hartman [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=2026060145-retry-careless-7dc8@gregkh \
--to=gregkh@linuxfoundation.org \
--cc=akpm@linux-foundation.org \
--cc=jslaby@suse.cz \
--cc=linux-kernel@vger.kernel.org \
--cc=lwn@lwn.net \
--cc=stable@vger.kernel.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®