* Linux 6.12.106
@ 2026-08-27 12:56 Greg Kroah-Hartman
2026-08-27 12:56 ` Greg Kroah-Hartman
0 siblings, 1 reply; 2+ messages in thread
From: Greg Kroah-Hartman @ 2026-08-27 12:56 UTC (permalink / raw)
To: linux-kernel, akpm, torvalds, stable; +Cc: lwn, jslaby, Greg Kroah-Hartman
I'm announcing the release of the 6.12.106 kernel.
All users of the 6.12 kernel series must upgrade.
The updated 6.12.y git tree can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-6.12.y
and can be browsed at the normal kernel.org git web browser:
https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary
thanks,
greg k-h
------------
Makefile | 2
drivers/block/null_blk/zoned.c | 10 +-
drivers/bluetooth/hci_aml.c | 18 +++-
drivers/gpio/gpio-ml-ioh.c | 36 ++++----
drivers/gpu/drm/xe/display/xe_fb_pin.c | 24 +----
drivers/hid/hid-core.c | 11 ++
drivers/hid/hid-hyperv.c | 27 +++++-
drivers/hid/hid-input.c | 3
drivers/hid/hid-magicmouse.c | 64 ++++++++++++++-
drivers/hid/hid-nintendo.c | 22 +++--
drivers/hid/hid-sensor-custom.c | 17 ++-
drivers/hwmon/pmbus/ltc4286.c | 2
drivers/input/keyboard/atkbd.c | 23 ++++-
drivers/input/mouse/byd.c | 2
drivers/net/ethernet/google/gve/gve_rx_dqo.c | 6 +
drivers/net/ethernet/pensando/ionic/ionic_lif.c | 17 +++
drivers/net/ethernet/pensando/ionic/ionic_txrx.c | 7 +
drivers/net/ntb_netdev.c | 15 +--
drivers/net/usb/rndis_host.c | 6 +
drivers/nfc/fdp/i2c.c | 27 ++++++
drivers/nfc/microread/microread.c | 31 ++++++-
drivers/nfc/pn533/pn533.c | 1
drivers/nfc/st21nfca/dep.c | 3
drivers/nvme/target/fabrics-cmd-auth.c | 2
drivers/nvme/target/fc.c | 2
drivers/nvme/target/tcp.c | 18 +++-
drivers/pci/controller/pci-host-generic.c | 11 --
drivers/pci/ecam.c | 13 +++
drivers/tty/serial/8250/8250_of.c | 41 +++++++++
drivers/tty/serial/amba-pl011.c | 8 -
drivers/tty/serial/sc16is7xx.c | 40 ++++-----
fs/ext4/fast_commit.c | 16 ++-
fs/ext4/xattr.c | 7 +
fs/netfs/buffered_read.c | 4
fs/netfs/read_collect.c | 2
fs/netfs/read_retry.c | 2
fs/ocfs2/xattr.c | 18 ++--
fs/xfs/libxfs/xfs_attr_leaf.c | 14 +++
fs/xfs/libxfs/xfs_format.h | 4
fs/xfs/libxfs/xfs_log_recover.h | 4
fs/xfs/libxfs/xfs_refcount.c | 18 ++--
fs/xfs/scrub/agheader.c | 96 ++++++++++++++++------
fs/xfs/scrub/agheader_repair.c | 17 +++
fs/xfs/scrub/refcount.c | 2
fs/xfs/scrub/refcount_repair.c | 4
fs/xfs/xfs_attr_item.c | 32 +++----
fs/xfs/xfs_bmap_item.c | 18 ++--
fs/xfs/xfs_buf_item.c | 8 -
fs/xfs/xfs_buf_item.h | 2
fs/xfs/xfs_buf_item_recover.c | 95 ++++++++++++++--------
fs/xfs/xfs_dquot_item_recover.c | 20 ++--
fs/xfs/xfs_exchmaps_item.c | 8 -
fs/xfs/xfs_extfree_item.c | 43 +++++-----
fs/xfs/xfs_icreate_item.c | 2
fs/xfs/xfs_inode_item.c | 6 -
fs/xfs/xfs_inode_item.h | 4
fs/xfs/xfs_inode_item_recover.c | 26 +++---
fs/xfs/xfs_log_recover.c | 16 +--
fs/xfs/xfs_refcount_item.c | 16 +--
fs/xfs/xfs_rmap_item.c | 16 +--
fs/xfs/xfs_trans.h | 1
include/linux/netfs.h | 2
include/linux/pci-ecam.h | 3
include/linux/sched.h | 8 +
include/net/inet_frag.h | 6 -
include/net/ipv6_frag.h | 5 -
kernel/kcov.c | 90 +++++++++++----------
lib/Kconfig.debug | 5 -
net/bluetooth/hci_event.c | 8 +
net/bluetooth/iso.c | 30 +++++--
net/bluetooth/rfcomm/core.c | 24 ++++-
net/ceph/osd_client.c | 5 -
net/core/gro.c | 7 +
net/ieee802154/6lowpan/reassembly.c | 27 +++---
net/ipv4/icmp.c | 6 -
net/ipv4/inet_fragment.c | 33 +++----
net/ipv4/ip_fragment.c | 54 +++++-------
net/ipv4/ip_output.c | 4
net/ipv4/ipmr.c | 2
net/ipv4/route.c | 4
net/ipv6/ip6_output.c | 2
net/ipv6/ndisc.c | 8 -
net/ipv6/netfilter/nf_conntrack_reasm.c | 27 +++---
net/ipv6/reassembly.c | 29 +++---
net/mptcp/pm_netlink.c | 9 +-
net/mptcp/pm_userspace.c | 7 -
net/mptcp/protocol.c | 9 ++
net/mptcp/protocol.h | 7 -
net/nfc/digital_technology.c | 2
net/nfc/llcp_commands.c | 18 +++-
net/nfc/llcp_core.c | 15 ++-
net/nfc/nci/ntf.c | 10 +-
net/nfc/nci/rsp.c | 1
net/xfrm/xfrm_state.c | 4
sound/drivers/dummy.c | 6 +
sound/soc/codecs/lpass-tx-macro.c | 4
sound/usb/mixer.c | 6 +
sound/usb/mixer.h | 2
sound/usb/mixer_scarlett2.c | 98 ++++++++++++++---------
99 files changed, 1079 insertions(+), 538 deletions(-)
Ali Ahmet Memis (2):
Bluetooth: RFCOMM: take rfcomm_mutex for the deferred setup accept
Bluetooth: ISO: do not force BT_LISTEN after a failed BIG sync
Anand Khoje (1):
net/ionic: avoid OOB TX partner lookup for hwstamp RXQ
Andrei Fed (1):
HID: magicmouse: fix battery reporting for Bluetooth Magic Trackpad USB-C
Baul Lee (1):
HID: core: fix OOB read of field->usage in hid_set_field()
Bryam Vargas (2):
nfc: fdp: bound the device-reported read length and fix an skb leak
nvmet-auth: zero the AUTH_RECEIVE response buffer
Chengfeng Ye (1):
Bluetooth: hci_event: fix LE list UAF on reset
Christoph Hellwig (1):
xfs: don't use a xfs_log_iovec for ri_buf in log recovery
Christopher Kodama (1):
HID: magicmouse: re-enable multitouch after reset-resume
Cryolitia PukNgae (1):
Input: atkbd - skip deactivate for HONOR FMB-P's internal keyboard
Darrick J. Wong (3):
xfs: namespace the maximum length/refcount symbols
xfs: hoist per-bucket unlinked list check to helper
xfs: don't livelock in scrub on a circular unlinked list
David Howells (1):
netfs: Fix potential UAF in netfs_unlock_abandoned_read_pages()
Dawid Wróbel (1):
ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses
Donglin Lyu (1):
Input: atkbd - skip deactivate for HONOR ZQC-P
Doruk Tan Ozturk (4):
nfc: digital: clamp SENSF_RES length to the destination buffer
nfc: llcp: bound the connect_sn TLV walk to the skb
nfc: llcp: reject PDUs shorter than the LLCP header
nfc: st21nfca: validate ATR_REQ length against the received frame
Eric Dumazet (7):
inet: frags: add inet_frag_putn() helper
ipv4: frags: remove ipq_put()
inet: frags: change inet_frag_kill() to defer refcount updates
inet: frags: save a pair of atomic operations in reassembly
ndisc: ndisc_send_redirect() cleanup
ipv4: start using dst_dev_rcu()
net: gro: properly validate BIG TCP aggregation criteria
Fan Wu (1):
serial: amba-pl011: synchronize DMA teardown
Geoffrey D. Bennett (1):
ALSA: scarlett2: Use a private URB for the notification endpoint
Greg Kroah-Hartman (2):
nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations
Linux 6.12.106
Griffin Kroah-Hartman (1):
rndis_host: add overflow check in rndis_rx_fixup()
Guanghui Yang (2):
ext4: clear error before retrying inode xattr space fallback
ext4: propagate errors from fast commit range replay
Haoxiang Li (1):
HID: sensor: custom: Fix use-after-free in enable_sensor
Hongling Zeng (1):
xfs: validate attr entry pointer before field access
Hugo Villeneuve (2):
serial: sc16is7xx: rename EFR mutex with generic name
serial: sc16is7xx: use guards for simple mutex locks
Ian Bridges (1):
ocfs2: fix missing metadata reservation for large xattrs
Ibrahim Hashimov (3):
xfs: bounds-check buffer log item's dirty bitmap
nvmet-tcp: bound SGL data length before allocating command buffers
HID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler()
Jann Horn (1):
HID: core: fix number/pointer type confusion on long items
Jiang HongHui (1):
nvmet-fc: fix invalid free in LS IOD error path
Jiangshan Yi (2):
HID: nintendo: register input device after capabilities are set
HID: nintendo: stop device IO before hid_hw_stop on probe failure
Jordan Rhee (1):
gve: fix zero-length skb frag with header-split
Jose Villaseñor Montfort (1):
HID: magicmouse: do not keep a stale msc->input if no input is claimed
Junjie Cao (1):
gpio: ml-ioh: use raw_spinlock_t for the register lock
Koichiro Den (1):
NTB: ntb_netdev: Preserve RX queue depth on allocation failure
Laxman Acharya Padhya (2):
Bluetooth: hci_event: validate LE Set CIG Parameters response
Bluetooth: hci_aml: validate firmware segment lengths
Lee Jones (1):
HID: magicmouse: Prevent out-of-bounds (OOB) read during DOUBLE_REPORT_ID
Linmao Li (2):
nfc: nci: free destination parameters when closing a connection
Input: byd - synchronize timer deletion before freeing private data
Luca Fresi (1):
serial: sc16is7xx: enable THRI before filling TX FIFO
Luxiao Xu (1):
ipv6: fix use-after-free in ip6_finish_output2()
Maarten Lankhorst (1):
drm/xe: Fix DPT allocation paths.
Matthias Goergens (1):
ext4: stop retrying saturated xattr cache entries
Michael Bommarito (1):
HID: hyperv: validate initial device info bounds
Muhammad Bilal (1):
nfc: llcp: fix OOB read and u8 offset wrap in TLV parsers
Nobuhiro Iwamatsu (1):
hwmon: (ltc4286) Fix symbol namespace of MODULE_IMPORT_NS()
Pavitra Jha (1):
libceph: fix OOB read in decode_watchers() via missing bounds check
Pengpeng Hou (1):
nfc: microread: validate target discovery payload lengths
Qing Luo (1):
mptcp: pm: fix data race in add_addr timer callback
Rik van Riel (1):
null_blk: fix UBSAN shift-out-of-bounds when zone_size is 0 or overflows
Ryan Wilbur (1):
serial: 8250_of: clear stuck empty-FIFO RX-timeout on LPC32xx
Samuel Page (2):
nfc: nci: fix out-of-bounds write in nci_target_auto_activated()
nfc: nci: fix uninit-value in the RF discover/activated NTF handlers
Shardul Bankar (1):
mptcp: pm: fix memory leak from alloc-during-teardown race
Steffen Persvold (1):
PCI: host-generic: Fix NULL pointer dereference on 32-bit CAM systems
Takashi Iwai (1):
ALSA: dummy: Check card index validity at probe
Tetsuo Handa (1):
kcov: fix data corruption and race conditions on PREEMPT_RT
Xiang Mei (Microsoft) (1):
xfrm: fix sk_dst_cache double-free in xfrm_user_policy()
Xu Rao (1):
nfc: pn533: purge fragmented skbs during cleanup
Yong Wang (1):
ipv4: reject undersized MTUs in ip_do_fragment()
Zhiling Zou (1):
inet: frags: publish queues before arming timer
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Linux 6.12.106
2026-08-27 12:56 Linux 6.12.106 Greg Kroah-Hartman
@ 2026-08-27 12:56 ` Greg Kroah-Hartman
0 siblings, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2026-08-27 12:56 UTC (permalink / raw)
To: linux-kernel, akpm, torvalds, stable; +Cc: lwn, jslaby, Greg Kroah-Hartman
diff --git a/Makefile b/Makefile
index 3368d1fe9e6d..957003198a2b 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
VERSION = 6
PATCHLEVEL = 12
-SUBLEVEL = 105
+SUBLEVEL = 106
EXTRAVERSION =
NAME = Baby Opossum Posse
diff --git a/drivers/block/null_blk/zoned.c b/drivers/block/null_blk/zoned.c
index 9bc768b2ca56..887915340fa8 100644
--- a/drivers/block/null_blk/zoned.c
+++ b/drivers/block/null_blk/zoned.c
@@ -18,6 +18,8 @@ static inline sector_t mb_to_sects(unsigned long mb)
static inline unsigned int null_zone_no(struct nullb_device *dev, sector_t sect)
{
+ if (WARN_ON_ONCE(!dev->zone_size_sects))
+ return 0;
return sect >> ilog2(dev->zone_size_sects);
}
@@ -56,8 +58,8 @@ int null_init_zoned_dev(struct nullb_device *dev,
sector_t sector = 0;
unsigned int i;
- if (!is_power_of_2(dev->zone_size)) {
- pr_err("zone_size must be power-of-two\n");
+ if (!dev->zone_size || !is_power_of_2(dev->zone_size)) {
+ pr_err("zone_size must be non-zero power-of-two\n");
return -EINVAL;
}
if (dev->zone_size > dev->size) {
@@ -88,6 +90,10 @@ int null_init_zoned_dev(struct nullb_device *dev,
zone_capacity_sects = mb_to_sects(dev->zone_capacity);
dev_capacity_sects = mb_to_sects(dev->size);
dev->zone_size_sects = mb_to_sects(dev->zone_size);
+ if (!dev->zone_size_sects) {
+ pr_err("zone_size too large or too small, leads to zero sectors\n");
+ return -EINVAL;
+ }
dev->nr_zones = round_up(dev_capacity_sects, dev->zone_size_sects)
>> ilog2(dev->zone_size_sects);
diff --git a/drivers/bluetooth/hci_aml.c b/drivers/bluetooth/hci_aml.c
index dc9541e76d81..a84668c7b533 100644
--- a/drivers/bluetooth/hci_aml.c
+++ b/drivers/bluetooth/hci_aml.c
@@ -247,7 +247,7 @@ static int aml_download_firmware(struct hci_dev *hdev, const char *fw_name)
struct hci_uart *hu = hci_get_drvdata(hdev);
struct aml_serdev *amldev = serdev_device_get_drvdata(hu->serdev);
const struct firmware *firmware = NULL;
- struct aml_fw_len *fw_len = NULL;
+ const struct aml_fw_len *fw_len = NULL;
u8 *iccm_start = NULL, *dccm_start = NULL;
u32 iccm_len, dccm_len;
u32 value = 0;
@@ -281,7 +281,21 @@ static int aml_download_firmware(struct hci_dev *hdev, const char *fw_name)
goto exit;
}
- fw_len = (struct aml_fw_len *)firmware->data;
+ if (firmware->size < sizeof(*fw_len)) {
+ bt_dev_err(hdev, "Firmware is too small for its header");
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ fw_len = (const struct aml_fw_len *)firmware->data;
+ if (fw_len->iccm_len < amldev->aml_dev_data->iccm_offset ||
+ fw_len->iccm_len > firmware->size - sizeof(*fw_len) ||
+ fw_len->dccm_len > firmware->size - sizeof(*fw_len) -
+ fw_len->iccm_len) {
+ bt_dev_err(hdev, "Invalid firmware segment lengths");
+ ret = -EINVAL;
+ goto exit;
+ }
/* Download ICCM */
iccm_start = (u8 *)(firmware->data) + sizeof(struct aml_fw_len)
diff --git a/drivers/gpio/gpio-ml-ioh.c b/drivers/gpio/gpio-ml-ioh.c
index 48e3768a830e..470994282844 100644
--- a/drivers/gpio/gpio-ml-ioh.c
+++ b/drivers/gpio/gpio-ml-ioh.c
@@ -84,7 +84,7 @@ struct ioh_gpio {
u32 gpio_use_sel;
int ch;
int irq_base;
- spinlock_t spinlock;
+ raw_spinlock_t spinlock;
};
static const int num_ports[] = {6, 12, 16, 16, 15, 16, 16, 12};
@@ -95,7 +95,7 @@ static void ioh_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
struct ioh_gpio *chip = gpiochip_get_data(gpio);
unsigned long flags;
- spin_lock_irqsave(&chip->spinlock, flags);
+ raw_spin_lock_irqsave(&chip->spinlock, flags);
reg_val = ioread32(&chip->reg->regs[chip->ch].po);
if (val)
reg_val |= BIT(nr);
@@ -103,7 +103,7 @@ static void ioh_gpio_set(struct gpio_chip *gpio, unsigned nr, int val)
reg_val &= ~BIT(nr);
iowrite32(reg_val, &chip->reg->regs[chip->ch].po);
- spin_unlock_irqrestore(&chip->spinlock, flags);
+ raw_spin_unlock_irqrestore(&chip->spinlock, flags);
}
static int ioh_gpio_get(struct gpio_chip *gpio, unsigned nr)
@@ -121,7 +121,7 @@ static int ioh_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
u32 reg_val;
unsigned long flags;
- spin_lock_irqsave(&chip->spinlock, flags);
+ raw_spin_lock_irqsave(&chip->spinlock, flags);
pm = ioread32(&chip->reg->regs[chip->ch].pm);
pm &= BIT(num_ports[chip->ch]) - 1;
pm |= BIT(nr);
@@ -134,7 +134,7 @@ static int ioh_gpio_direction_output(struct gpio_chip *gpio, unsigned nr,
reg_val &= ~BIT(nr);
iowrite32(reg_val, &chip->reg->regs[chip->ch].po);
- spin_unlock_irqrestore(&chip->spinlock, flags);
+ raw_spin_unlock_irqrestore(&chip->spinlock, flags);
return 0;
}
@@ -145,12 +145,12 @@ static int ioh_gpio_direction_input(struct gpio_chip *gpio, unsigned nr)
u32 pm;
unsigned long flags;
- spin_lock_irqsave(&chip->spinlock, flags);
+ raw_spin_lock_irqsave(&chip->spinlock, flags);
pm = ioread32(&chip->reg->regs[chip->ch].pm);
pm &= BIT(num_ports[chip->ch]) - 1;
pm &= ~BIT(nr);
iowrite32(pm, &chip->reg->regs[chip->ch].pm);
- spin_unlock_irqrestore(&chip->spinlock, flags);
+ raw_spin_unlock_irqrestore(&chip->spinlock, flags);
return 0;
}
@@ -254,7 +254,7 @@ static int ioh_irq_type(struct irq_data *d, unsigned int type)
dev_dbg(chip->dev, "%s:irq=%d type=%d ch=%d pos=%d type=%d\n",
__func__, irq, type, ch, im_pos, type);
- spin_lock_irqsave(&chip->spinlock, flags);
+ raw_spin_lock_irqsave(&chip->spinlock, flags);
switch (type) {
case IRQ_TYPE_EDGE_RISING:
@@ -294,7 +294,7 @@ static int ioh_irq_type(struct irq_data *d, unsigned int type)
ien = ioread32(&chip->reg->regs[chip->ch].ien);
iowrite32(ien | BIT(ch), &chip->reg->regs[chip->ch].ien);
end:
- spin_unlock_irqrestore(&chip->spinlock, flags);
+ raw_spin_unlock_irqrestore(&chip->spinlock, flags);
return 0;
}
@@ -324,11 +324,11 @@ static void ioh_irq_disable(struct irq_data *d)
unsigned long flags;
u32 ien;
- spin_lock_irqsave(&chip->spinlock, flags);
+ raw_spin_lock_irqsave(&chip->spinlock, flags);
ien = ioread32(&chip->reg->regs[chip->ch].ien);
ien &= ~BIT(d->irq - chip->irq_base);
iowrite32(ien, &chip->reg->regs[chip->ch].ien);
- spin_unlock_irqrestore(&chip->spinlock, flags);
+ raw_spin_unlock_irqrestore(&chip->spinlock, flags);
}
static void ioh_irq_enable(struct irq_data *d)
@@ -338,11 +338,11 @@ static void ioh_irq_enable(struct irq_data *d)
unsigned long flags;
u32 ien;
- spin_lock_irqsave(&chip->spinlock, flags);
+ raw_spin_lock_irqsave(&chip->spinlock, flags);
ien = ioread32(&chip->reg->regs[chip->ch].ien);
ien |= BIT(d->irq - chip->irq_base);
iowrite32(ien, &chip->reg->regs[chip->ch].ien);
- spin_unlock_irqrestore(&chip->spinlock, flags);
+ raw_spin_unlock_irqrestore(&chip->spinlock, flags);
}
static irqreturn_t ioh_gpio_handler(int irq, void *dev_id)
@@ -438,7 +438,7 @@ static int ioh_gpio_probe(struct pci_dev *pdev,
chip->base = base;
chip->reg = chip->base;
chip->ch = i;
- spin_lock_init(&chip->spinlock);
+ raw_spin_lock_init(&chip->spinlock);
ioh_gpio_setup(chip, num_ports[i]);
ret = devm_gpiochip_add_data(dev, &chip->gpio, chip);
if (ret) {
@@ -482,9 +482,9 @@ static int __maybe_unused ioh_gpio_suspend(struct device *dev)
struct ioh_gpio *chip = dev_get_drvdata(dev);
unsigned long flags;
- spin_lock_irqsave(&chip->spinlock, flags);
+ raw_spin_lock_irqsave(&chip->spinlock, flags);
ioh_gpio_save_reg_conf(chip);
- spin_unlock_irqrestore(&chip->spinlock, flags);
+ raw_spin_unlock_irqrestore(&chip->spinlock, flags);
return 0;
}
@@ -494,11 +494,11 @@ static int __maybe_unused ioh_gpio_resume(struct device *dev)
struct ioh_gpio *chip = dev_get_drvdata(dev);
unsigned long flags;
- spin_lock_irqsave(&chip->spinlock, flags);
+ raw_spin_lock_irqsave(&chip->spinlock, flags);
iowrite32(0x01, &chip->reg->srst);
iowrite32(0x00, &chip->reg->srst);
ioh_gpio_restore_reg_conf(chip);
- spin_unlock_irqrestore(&chip->spinlock, flags);
+ raw_spin_unlock_irqrestore(&chip->spinlock, flags);
return 0;
}
diff --git a/drivers/gpu/drm/xe/display/xe_fb_pin.c b/drivers/gpu/drm/xe/display/xe_fb_pin.c
index 0558b106f8b6..75756cc0255c 100644
--- a/drivers/gpu/drm/xe/display/xe_fb_pin.c
+++ b/drivers/gpu/drm/xe/display/xe_fb_pin.c
@@ -97,24 +97,12 @@ static int __xe_pin_fb_vma_dpt(const struct intel_framebuffer *fb,
dpt_size = ALIGN(intel_rotation_info_size(&view->rotated) * 8,
XE_PAGE_SIZE);
- if (IS_DGFX(xe))
- dpt = xe_bo_create_pin_map(xe, tile0, NULL, dpt_size,
- ttm_bo_type_kernel,
- XE_BO_FLAG_VRAM0 |
- XE_BO_FLAG_GGTT |
- XE_BO_FLAG_PAGETABLE);
- else
- dpt = xe_bo_create_pin_map(xe, tile0, NULL, dpt_size,
- ttm_bo_type_kernel,
- XE_BO_FLAG_STOLEN |
- XE_BO_FLAG_GGTT |
- XE_BO_FLAG_PAGETABLE);
- if (IS_ERR(dpt))
- dpt = xe_bo_create_pin_map(xe, tile0, NULL, dpt_size,
- ttm_bo_type_kernel,
- XE_BO_FLAG_SYSTEM |
- XE_BO_FLAG_GGTT |
- XE_BO_FLAG_PAGETABLE);
+ dpt = xe_bo_create_pin_map(xe, tile0, NULL, dpt_size,
+ ttm_bo_type_kernel,
+ XE_BO_FLAG_VRAM_IF_DGFX(tile0) |
+ XE_BO_FLAG_GGTT |
+ XE_BO_FLAG_PAGETABLE |
+ XE_BO_FLAG_SCANOUT);
if (IS_ERR(dpt))
return PTR_ERR(dpt);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 9784258e48ea..d44b43e2438a 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -379,6 +379,9 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
static u32 item_udata(struct hid_item *item)
{
+ if (item->format != HID_ITEM_FORMAT_SHORT)
+ return 0;
+
switch (item->size) {
case 1: return item->data.u8;
case 2: return item->data.u16;
@@ -389,6 +392,9 @@ static u32 item_udata(struct hid_item *item)
static s32 item_sdata(struct hid_item *item)
{
+ if (item->format != HID_ITEM_FORMAT_SHORT)
+ return 0;
+
switch (item->size) {
case 1: return item->data.s8;
case 2: return item->data.s16;
@@ -1894,13 +1900,14 @@ int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
size = field->report_size;
- hid_dump_input(field->report->device, field->usage + offset, value);
-
if (offset >= field->report_count) {
hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
offset, field->report_count);
return -1;
}
+
+ hid_dump_input(field->report->device, field->usage + offset, value);
+
if (field->logical_minimum < 0) {
if (value != snto32(s32ton(value, size), size)) {
hid_err(field->report->device, "value %d is out of range\n", value);
diff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c
index 9eafff0b6ea4..d044bed96acc 100644
--- a/drivers/hid/hid-hyperv.c
+++ b/drivers/hid/hid-hyperv.c
@@ -171,18 +171,32 @@ static void mousevsc_free_device(struct mousevsc_dev *device)
}
static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
- struct synthhid_device_info *device_info)
+ struct synthhid_device_info *device_info,
+ u32 device_info_size)
{
int ret = 0;
struct hid_descriptor *desc;
struct mousevsc_prt_msg ack;
+ size_t desc_offset;
+ size_t desc_size;
input_device->dev_info_status = -ENOMEM;
+ if (device_info_size < sizeof(*device_info)) {
+ input_device->dev_info_status = -EINVAL;
+ goto cleanup;
+ }
+
input_device->hid_dev_info = device_info->hid_dev_info;
desc = &device_info->hid_descriptor;
+ desc_offset = offsetof(struct synthhid_device_info, hid_descriptor);
+ desc_size = device_info_size - desc_offset;
if (desc->bLength == 0)
goto cleanup;
+ if (desc->bLength < sizeof(*desc) || desc->bLength > desc_size) {
+ input_device->dev_info_status = -EINVAL;
+ goto cleanup;
+ }
/* The pointer is not NULL when we resume from hibernation */
kfree(input_device->hid_desc);
@@ -197,6 +211,10 @@ static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
input_device->dev_info_status = -EINVAL;
goto cleanup;
}
+ if (input_device->report_desc_size > desc_size - desc->bLength) {
+ input_device->dev_info_status = -EINVAL;
+ goto cleanup;
+ }
/* The pointer is not NULL when we resume from hibernation */
kfree(input_device->report_desc);
@@ -273,14 +291,17 @@ static void mousevsc_on_receive(struct hv_device *device,
break;
case SYNTH_HID_INITIAL_DEVICE_INFO:
- WARN_ON(pipe_msg->size < sizeof(struct hv_input_dev_info));
+ if (WARN_ON_ONCE(pipe_msg->size <
+ sizeof(struct synthhid_device_info)))
+ break;
/*
* Parse out the device info into device attr,
* hid desc and report desc
*/
mousevsc_on_receive_device_info(input_dev,
- (struct synthhid_device_info *)pipe_msg->data);
+ (struct synthhid_device_info *)pipe_msg->data,
+ pipe_msg->size);
break;
case SYNTH_HID_INPUT_REPORT:
input_report =
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index c1708caa6b6c..8f5e5cb88d37 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -361,6 +361,9 @@ static const struct hid_device_id hid_battery_quirks[] = {
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
USB_DEVICE_ID_APPLE_MAGICTRACKPAD),
HID_BATTERY_QUIRK_IGNORE },
+ { HID_BLUETOOTH_DEVICE(BT_VENDOR_ID_APPLE,
+ USB_DEVICE_ID_APPLE_MAGICTRACKPAD2_USBC),
+ HID_BATTERY_QUIRK_AVOID_QUERY },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM,
USB_DEVICE_ID_ELECOM_BM084),
HID_BATTERY_QUIRK_IGNORE },
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
index c59cfab10492..52d2a5b69f9b 100644
--- a/drivers/hid/hid-magicmouse.c
+++ b/drivers/hid/hid-magicmouse.c
@@ -387,6 +387,10 @@ static int magicmouse_raw_event(struct hid_device *hdev,
struct input_dev *input = msc->input;
int x = 0, y = 0, ii, clicks = 0, npoints;
+ /* Protect against zero sized recursive calls from DOUBLE_REPORT_ID */
+ if (size < 1)
+ return 0;
+
switch (data[0]) {
case TRACKPAD_REPORT_ID:
case TRACKPAD2_BT_REPORT_ID:
@@ -487,6 +491,18 @@ static int magicmouse_raw_event(struct hid_device *hdev,
/* Sometimes the trackpad sends two touch reports in one
* packet.
*/
+
+ /* Ensure that we have at least 2 elements (report type and size) */
+ if (size < 2)
+ return 0;
+
+ if (size < data[1] + 2) {
+ hid_warn(hdev,
+ "received report length (%d) was smaller than specified (%d)",
+ size, data[1] + 2);
+ return 0;
+ }
+
magicmouse_raw_event(hdev, report, data + 2, data[1]);
magicmouse_raw_event(hdev, report, data + 2 + data[1],
size - 2 - data[1]);
@@ -795,6 +811,12 @@ static bool is_usb_magictrackpad2(__u32 vendor, __u32 product)
product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2_USBC;
}
+static bool is_bt_magictrackpad2(__u32 vendor, __u32 product)
+{
+ return vendor == BT_VENDOR_ID_APPLE &&
+ product == USB_DEVICE_ID_APPLE_MAGICTRACKPAD2_USBC;
+}
+
static int magicmouse_fetch_battery(struct hid_device *hdev)
{
#ifdef CONFIG_HID_BATTERY_STRENGTH
@@ -803,7 +825,8 @@ static int magicmouse_fetch_battery(struct hid_device *hdev)
if (!hdev->battery ||
(!is_usb_magicmouse2(hdev->vendor, hdev->product) &&
- !is_usb_magictrackpad2(hdev->vendor, hdev->product)))
+ !is_usb_magictrackpad2(hdev->vendor, hdev->product) &&
+ !is_bt_magictrackpad2(hdev->vendor, hdev->product)))
return -1;
report_enum = &hdev->report_enum[hdev->battery_report_type];
@@ -865,6 +888,16 @@ static int magicmouse_probe(struct hid_device *hdev,
return ret;
}
+ /*
+ * When hidinput_connect() fails it frees every input device it
+ * created, but that does not fail hid_hw_start(): the core simply
+ * does not claim an input. msc->input, cached in ->input_mapping
+ * while the report descriptor was parsed, would then be a dangling
+ * pointer that passes every NULL check. Trust the core's claim.
+ */
+ if (!(hdev->claimed & HID_CLAIMED_INPUT))
+ msc->input = NULL;
+
if (is_usb_magicmouse2(id->vendor, id->product) ||
is_usb_magictrackpad2(id->vendor, id->product)) {
timer_setup(&msc->battery_timer, magicmouse_battery_timer_tick, 0);
@@ -929,6 +962,16 @@ static int magicmouse_probe(struct hid_device *hdev,
schedule_delayed_work(&msc->work, msecs_to_jiffies(500));
}
+ /*
+ * Query the Bluetooth Magic Trackpad USB-C battery as done for USB.
+ * Start io first: probe holds driver_input_lock and the synchronous
+ * GET_REPORT reply would otherwise be dropped.
+ */
+ if (is_bt_magictrackpad2(id->vendor, id->product)) {
+ hid_device_io_start(hdev);
+ magicmouse_fetch_battery(hdev);
+ }
+
return 0;
err_stop_hw:
if (is_usb_magicmouse2(id->vendor, id->product) ||
@@ -953,6 +996,22 @@ static void magicmouse_remove(struct hid_device *hdev)
hid_hw_stop(hdev);
}
+#ifdef CONFIG_PM
+static int magicmouse_reset_resume(struct hid_device *hdev)
+{
+ struct magicmouse_sc *msc = hid_get_drvdata(hdev);
+
+ /* The device drops out of multitouch mode on resume; re-send the
+ * enable report. Only the HID_TYPE_USBMOUSE interface accepts it, and
+ * it must be deferred. Sending it inline here is too early.
+ */
+ if (msc && hdev->type == HID_TYPE_USBMOUSE)
+ schedule_delayed_work(&msc->work, msecs_to_jiffies(500));
+
+ return 0;
+}
+#endif
+
static const __u8 *magicmouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
@@ -1012,6 +1071,9 @@ static struct hid_driver magicmouse_driver = {
.event = magicmouse_event,
.input_mapping = magicmouse_input_mapping,
.input_configured = magicmouse_input_configured,
+#ifdef CONFIG_PM
+ .reset_resume = magicmouse_reset_resume,
+#endif
};
module_hid_driver(magicmouse_driver);
diff --git a/drivers/hid/hid-nintendo.c b/drivers/hid/hid-nintendo.c
index 6bdc9165f822..54a8bdcc0ef7 100644
--- a/drivers/hid/hid-nintendo.c
+++ b/drivers/hid/hid-nintendo.c
@@ -2142,10 +2142,6 @@ static int joycon_input_create(struct joycon_ctlr *ctlr)
ctlr->input->phys = hdev->phys;
input_set_drvdata(ctlr->input, ctlr);
- ret = input_register_device(ctlr->input);
- if (ret)
- return ret;
-
if (joycon_type_is_right_joycon(ctlr)) {
joycon_config_right_stick(ctlr->input);
joycon_config_buttons(ctlr->input, right_joycon_button_mappings);
@@ -2185,6 +2181,10 @@ static int joycon_input_create(struct joycon_ctlr *ctlr)
if (joycon_has_rumble(ctlr))
joycon_config_rumble(ctlr);
+ ret = input_register_device(ctlr->input);
+ if (ret)
+ return ret;
+
return 0;
}
@@ -2563,7 +2563,12 @@ static int joycon_ctlr_read_handler(struct joycon_ctlr *ctlr, u8 *data,
{
if (data[0] == JC_INPUT_SUBCMD_REPLY || data[0] == JC_INPUT_IMU_DATA ||
data[0] == JC_INPUT_MCU_DATA) {
- if (size >= 12) /* make sure it contains the input report */
+ /*
+ * The whole struct is cast and parsed below, including the
+ * IMU/subcmd union, not just the 12-byte partial header this
+ * used to check for.
+ */
+ if (size >= sizeof(struct joycon_input_report))
joycon_parse_report(ctlr,
(struct joycon_input_report *)data);
}
@@ -2691,14 +2696,14 @@ static int nintendo_hid_probe(struct hid_device *hdev,
ret = joycon_init(hdev);
if (ret) {
hid_err(hdev, "Failed to initialize controller; ret=%d\n", ret);
- goto err_close;
+ goto err_io_stop;
}
/* Initialize the leds */
ret = joycon_leds_create(ctlr);
if (ret) {
hid_err(hdev, "Failed to create leds; ret=%d\n", ret);
- goto err_close;
+ goto err_io_stop;
}
/* Initialize the battery power supply */
@@ -2721,7 +2726,8 @@ static int nintendo_hid_probe(struct hid_device *hdev,
err_ida:
ida_free(&nintendo_player_id_allocator, ctlr->player_id);
-err_close:
+err_io_stop:
+ hid_device_io_stop(hdev);
hid_hw_close(hdev);
err_stop:
hid_hw_stop(hdev);
diff --git a/drivers/hid/hid-sensor-custom.c b/drivers/hid/hid-sensor-custom.c
index 66f0675df24b..c1ffd651b2db 100644
--- a/drivers/hid/hid-sensor-custom.c
+++ b/drivers/hid/hid-sensor-custom.c
@@ -1005,26 +1005,26 @@ static int hid_sensor_custom_probe(struct platform_device *pdev)
return ret;
}
- ret = sysfs_create_group(&sensor_inst->pdev->dev.kobj,
- &enable_sensor_attr_group);
+ ret = hid_sensor_custom_add_attributes(sensor_inst);
if (ret)
goto err_remove_callback;
- ret = hid_sensor_custom_add_attributes(sensor_inst);
+ ret = sysfs_create_group(&sensor_inst->pdev->dev.kobj,
+ &enable_sensor_attr_group);
if (ret)
- goto err_remove_group;
+ goto err_remove_attributes;
ret = hid_sensor_custom_dev_if_add(sensor_inst);
if (ret)
- goto err_remove_attributes;
+ goto err_remove_group;
return 0;
-err_remove_attributes:
- hid_sensor_custom_remove_attributes(sensor_inst);
err_remove_group:
sysfs_remove_group(&sensor_inst->pdev->dev.kobj,
&enable_sensor_attr_group);
+err_remove_attributes:
+ hid_sensor_custom_remove_attributes(sensor_inst);
err_remove_callback:
sensor_hub_remove_callback(hsdev, hsdev->usage);
@@ -1042,9 +1042,10 @@ static void hid_sensor_custom_remove(struct platform_device *pdev)
}
hid_sensor_custom_dev_if_remove(sensor_inst);
- hid_sensor_custom_remove_attributes(sensor_inst);
+ /* Remove enable_sensor first as it uses fields via power_state/report_state. */
sysfs_remove_group(&sensor_inst->pdev->dev.kobj,
&enable_sensor_attr_group);
+ hid_sensor_custom_remove_attributes(sensor_inst);
sensor_hub_remove_callback(hsdev, hsdev->usage);
}
diff --git a/drivers/hwmon/pmbus/ltc4286.c b/drivers/hwmon/pmbus/ltc4286.c
index 8715d380784a..98831a927ffa 100644
--- a/drivers/hwmon/pmbus/ltc4286.c
+++ b/drivers/hwmon/pmbus/ltc4286.c
@@ -173,4 +173,4 @@ module_i2c_driver(ltc4286_driver);
MODULE_AUTHOR("Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>");
MODULE_DESCRIPTION("PMBUS driver for LTC4286 and compatibles");
MODULE_LICENSE("GPL");
-MODULE_IMPORT_NS("PMBUS");
+MODULE_IMPORT_NS(PMBUS);
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index dea8ce003274..8eea27722b6e 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -1938,17 +1938,32 @@ static const struct dmi_system_id atkbd_dmi_quirk_table[] __initconst = {
.callback = atkbd_deactivate_fixup,
},
{
- /* Lenovo Yoga Air 14 (83QK) */
.matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
- DMI_MATCH(DMI_PRODUCT_NAME, "83QK"),
+ DMI_MATCH(DMI_SYS_VENDOR, "HONOR"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "BCC-N"),
},
.callback = atkbd_deactivate_fixup,
},
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "HONOR"),
- DMI_MATCH(DMI_PRODUCT_NAME, "BCC-N"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "FMB-P"),
+ },
+ .callback = atkbd_deactivate_fixup,
+ },
+ {
+ /* HONOR MagicBook Pro 14 2026 */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "HONOR"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "ZQC-P"),
+ },
+ .callback = atkbd_deactivate_fixup,
+ },
+ {
+ /* Lenovo Yoga Air 14 (83QK) */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "83QK"),
},
.callback = atkbd_deactivate_fixup,
},
diff --git a/drivers/input/mouse/byd.c b/drivers/input/mouse/byd.c
index 221a553f45cd..cb49f3888302 100644
--- a/drivers/input/mouse/byd.c
+++ b/drivers/input/mouse/byd.c
@@ -426,7 +426,7 @@ static void byd_disconnect(struct psmouse *psmouse)
struct byd_data *priv = psmouse->private;
if (priv) {
- del_timer(&priv->timer);
+ timer_shutdown_sync(&priv->timer);
kfree(psmouse->private);
psmouse->private = NULL;
}
diff --git a/drivers/net/ethernet/google/gve/gve_rx_dqo.c b/drivers/net/ethernet/google/gve/gve_rx_dqo.c
index 3655f48e9b46..839222ba9e91 100644
--- a/drivers/net/ethernet/google/gve/gve_rx_dqo.c
+++ b/drivers/net/ethernet/google/gve/gve_rx_dqo.c
@@ -850,6 +850,12 @@ static int gve_rx_dqo(struct napi_struct *napi, struct gve_rx_ring *rx,
rx->rx_hsplit_unsplit_pkt += unsplit;
rx->rx_hsplit_bytes += hdr_len;
u64_stats_update_end(&rx->statss);
+
+ if (!buf_len) {
+ gve_enqueue_buf_state(rx, &rx->dqo.recycled_buf_states,
+ buf_state);
+ return 0;
+ }
}
/* Sync the portion of dma buffer for CPU to read. */
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_lif.c b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
index 8119281b26d0..d581a8027f58 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_lif.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_lif.c
@@ -917,8 +917,21 @@ static int ionic_lif_rxq_init(struct ionic_lif *lif, struct ionic_qcq *qcq)
};
int err;
- q->partner = &lif->txqcqs[q->index]->q;
- q->partner->partner = q;
+ q->partner = NULL;
+
+ /* Only normal RX queues have matching TX queue partners. */
+ if (q->index < lif->nxqs) {
+ if (!lif->txqcqs ||
+ q->index >= lif->ionic->ntxqs_per_lif ||
+ !lif->txqcqs[q->index]) {
+ dev_err(dev, "missing TX queue partner for RX queue %u\n",
+ q->index);
+ return -ENXIO;
+ }
+
+ q->partner = &lif->txqcqs[q->index]->q;
+ q->partner->partner = q;
+ }
if (!lif->xdp_prog ||
(lif->xdp_prog->aux && lif->xdp_prog->aux->xdp_has_frags))
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
index 2cdcd46e922c..c55348e53c45 100644
--- a/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_txrx.c
@@ -545,13 +545,18 @@ static bool ionic_run_xdp(struct ionic_rx_stats *stats,
break;
case XDP_TX:
+ txq = rxq->partner;
+ if (unlikely(!txq)) {
+ err = -EIO;
+ break;
+ }
+
xdpf = xdp_convert_buff_to_frame(&xdp_buf);
if (!xdpf) {
err = -ENOSPC;
break;
}
- txq = rxq->partner;
nq = netdev_get_tx_queue(netdev, txq->index);
__netif_tx_lock(nq, smp_processor_id());
txq_trans_cond_update(nq);
diff --git a/drivers/net/ntb_netdev.c b/drivers/net/ntb_netdev.c
index ef6df0e37bea..05bd6ad9c88f 100644
--- a/drivers/net/ntb_netdev.c
+++ b/drivers/net/ntb_netdev.c
@@ -100,7 +100,7 @@ static void ntb_netdev_rx_handler(struct ntb_transport_qp *qp, void *qp_data,
void *data, int len)
{
struct net_device *ndev = qp_data;
- struct sk_buff *skb;
+ struct sk_buff *skb, *new_skb;
int rc;
skb = data;
@@ -115,6 +115,12 @@ static void ntb_netdev_rx_handler(struct ntb_transport_qp *qp, void *qp_data,
goto enqueue_again;
}
+ new_skb = netdev_alloc_skb(ndev, ndev->mtu + ETH_HLEN);
+ if (!new_skb) {
+ ndev->stats.rx_dropped++;
+ goto enqueue_again;
+ }
+
skb_put(skb, len);
skb->protocol = eth_type_trans(skb, ndev);
skb->ip_summed = CHECKSUM_NONE;
@@ -127,12 +133,7 @@ static void ntb_netdev_rx_handler(struct ntb_transport_qp *qp, void *qp_data,
ndev->stats.rx_bytes += len;
}
- skb = netdev_alloc_skb(ndev, ndev->mtu + ETH_HLEN);
- if (!skb) {
- ndev->stats.rx_errors++;
- ndev->stats.rx_frame_errors++;
- return;
- }
+ skb = new_skb;
enqueue_again:
rc = ntb_transport_rx_enqueue(qp, skb, skb->data, ndev->mtu + ETH_HLEN);
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index 7b3739b29c8f..1d7e9a1a3cf1 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -14,6 +14,7 @@
#include <linux/usb/cdc.h>
#include <linux/usb/usbnet.h>
#include <linux/usb/rndis_host.h>
+#include <linux/overflow.h>
/*
@@ -506,6 +507,7 @@ int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
struct rndis_data_hdr *hdr = (void *)skb->data;
struct sk_buff *skb2;
u32 msg_type, msg_len, data_offset, data_len;
+ u32 overflow_check;
msg_type = le32_to_cpu(hdr->msg_type);
msg_len = le32_to_cpu(hdr->msg_len);
@@ -514,7 +516,9 @@ int rndis_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
/* don't choke if we see oob, per-packet data, etc */
if (unlikely(msg_type != RNDIS_MSG_PACKET || skb->len < msg_len
- || (data_offset + data_len + 8) > msg_len)) {
+ || (data_offset + data_len + 8) > msg_len
+ || check_add_overflow(data_offset, data_len, &overflow_check)
+ || check_add_overflow(overflow_check, 8, &overflow_check))) {
dev->net->stats.rx_frame_errors++;
netdev_dbg(dev->net, "bad rndis message %d/%d/%d/%d, len %d\n",
le32_to_cpu(hdr->msg_type),
diff --git a/drivers/nfc/fdp/i2c.c b/drivers/nfc/fdp/i2c.c
index c1896a1d978c..f292e7f37456 100644
--- a/drivers/nfc/fdp/i2c.c
+++ b/drivers/nfc/fdp/i2c.c
@@ -166,9 +166,36 @@ static int fdp_nci_i2c_read(struct fdp_i2c_phy *phy, struct sk_buff **skb)
/* Packet that contains a length */
if (tmp[0] == 0 && tmp[1] == 0) {
phy->next_read_size = (tmp[2] << 8) + tmp[3] + 3;
+
+ /*
+ * next_read_size is taken from the device and is used
+ * as the i2c_master_recv() count for the next packet
+ * and as the data skb size. A value above the receive
+ * buffer overflows tmp[]; one below the minimum frame
+ * size runs the header/LRC strip and the length-field
+ * read past a short receive. Either way the packet is
+ * corrupt: drop it and force resynchronization.
+ */
+ if (phy->next_read_size < FDP_NCI_I2C_MIN_PAYLOAD ||
+ phy->next_read_size > FDP_NCI_I2C_MAX_PAYLOAD) {
+ dev_dbg(&client->dev, "%s: corrupted packet\n",
+ __func__);
+ phy->next_read_size = FDP_NCI_I2C_MIN_PAYLOAD;
+ goto flush;
+ }
} else {
phy->next_read_size = FDP_NCI_I2C_MIN_PAYLOAD;
+ /*
+ * Only one data packet is delivered per call; if the
+ * device sends another, do not overwrite and leak the
+ * skb allocated for the previous one.
+ */
+ if (*skb) {
+ kfree_skb(*skb);
+ *skb = NULL;
+ }
+
*skb = alloc_skb(len, GFP_KERNEL);
if (*skb == NULL) {
r = -ENOMEM;
diff --git a/drivers/nfc/microread/microread.c b/drivers/nfc/microread/microread.c
index bb4d029bb888..b0e483ee7eec 100644
--- a/drivers/nfc/microread/microread.c
+++ b/drivers/nfc/microread/microread.c
@@ -483,13 +483,19 @@ static void microread_target_discovered(struct nfc_hci_dev *hdev, u8 gate,
switch (gate) {
case MICROREAD_GATE_ID_MREAD_ISO_A:
+ if (skb->len <= MICROREAD_EMCF_A_LEN) {
+ r = -EINVAL;
+ goto exit_free;
+ }
+
targets->supported_protocols =
nfc_hci_sak_to_protocol(skb->data[MICROREAD_EMCF_A_SAK]);
targets->sens_res =
be16_to_cpu(*(u16 *)&skb->data[MICROREAD_EMCF_A_ATQA]);
targets->sel_res = skb->data[MICROREAD_EMCF_A_SAK];
targets->nfcid1_len = skb->data[MICROREAD_EMCF_A_LEN];
- if (targets->nfcid1_len > sizeof(targets->nfcid1)) {
+ if (targets->nfcid1_len > sizeof(targets->nfcid1) ||
+ targets->nfcid1_len > skb->len - MICROREAD_EMCF_A_UID) {
r = -EINVAL;
goto exit_free;
}
@@ -497,13 +503,19 @@ static void microread_target_discovered(struct nfc_hci_dev *hdev, u8 gate,
targets->nfcid1_len);
break;
case MICROREAD_GATE_ID_MREAD_ISO_A_3:
+ if (skb->len <= MICROREAD_EMCF_A3_LEN) {
+ r = -EINVAL;
+ goto exit_free;
+ }
+
targets->supported_protocols =
nfc_hci_sak_to_protocol(skb->data[MICROREAD_EMCF_A3_SAK]);
targets->sens_res =
be16_to_cpu(*(u16 *)&skb->data[MICROREAD_EMCF_A3_ATQA]);
targets->sel_res = skb->data[MICROREAD_EMCF_A3_SAK];
targets->nfcid1_len = skb->data[MICROREAD_EMCF_A3_LEN];
- if (targets->nfcid1_len > sizeof(targets->nfcid1)) {
+ if (targets->nfcid1_len > sizeof(targets->nfcid1) ||
+ targets->nfcid1_len > skb->len - MICROREAD_EMCF_A3_UID) {
r = -EINVAL;
goto exit_free;
}
@@ -511,11 +523,21 @@ static void microread_target_discovered(struct nfc_hci_dev *hdev, u8 gate,
targets->nfcid1_len);
break;
case MICROREAD_GATE_ID_MREAD_ISO_B:
+ if (skb->len < MICROREAD_EMCF_B_UID + 4) {
+ r = -EINVAL;
+ goto exit_free;
+ }
+
targets->supported_protocols = NFC_PROTO_ISO14443_B_MASK;
memcpy(targets->nfcid1, &skb->data[MICROREAD_EMCF_B_UID], 4);
targets->nfcid1_len = 4;
break;
case MICROREAD_GATE_ID_MREAD_NFC_T1:
+ if (skb->len < MICROREAD_EMCF_T1_UID + 4) {
+ r = -EINVAL;
+ goto exit_free;
+ }
+
targets->supported_protocols = NFC_PROTO_JEWEL_MASK;
targets->sens_res =
le16_to_cpu(*(u16 *)&skb->data[MICROREAD_EMCF_T1_ATQA]);
@@ -523,6 +545,11 @@ static void microread_target_discovered(struct nfc_hci_dev *hdev, u8 gate,
targets->nfcid1_len = 4;
break;
case MICROREAD_GATE_ID_MREAD_NFC_T3:
+ if (skb->len < MICROREAD_EMCF_T3_UID + 8) {
+ r = -EINVAL;
+ goto exit_free;
+ }
+
targets->supported_protocols = NFC_PROTO_FELICA_MASK;
memcpy(targets->nfcid1, &skb->data[MICROREAD_EMCF_T3_UID], 8);
targets->nfcid1_len = 8;
diff --git a/drivers/nfc/pn533/pn533.c b/drivers/nfc/pn533/pn533.c
index e2bc67300a91..6abe7b38acfb 100644
--- a/drivers/nfc/pn533/pn533.c
+++ b/drivers/nfc/pn533/pn533.c
@@ -2803,6 +2803,7 @@ void pn53x_common_clean(struct pn533 *priv)
destroy_workqueue(priv->wq);
skb_queue_purge(&priv->resp_q);
+ skb_queue_purge(&priv->fragment_skb);
list_for_each_entry_safe(cmd, n, &priv->cmd_queue, queue) {
list_del(&cmd->queue);
diff --git a/drivers/nfc/st21nfca/dep.c b/drivers/nfc/st21nfca/dep.c
index 1ec651e31064..e56a01178583 100644
--- a/drivers/nfc/st21nfca/dep.c
+++ b/drivers/nfc/st21nfca/dep.c
@@ -207,6 +207,9 @@ static int st21nfca_tm_recv_atr_req(struct nfc_hci_dev *hdev,
if (atr_req->length < sizeof(struct st21nfca_atr_req))
return -EPROTO;
+ if (atr_req->length > skb->len)
+ return -EPROTO;
+
r = st21nfca_tm_send_atr_res(hdev, atr_req);
if (r)
return r;
diff --git a/drivers/nvme/target/fabrics-cmd-auth.c b/drivers/nvme/target/fabrics-cmd-auth.c
index 07f2581529d5..34924c4c73b9 100644
--- a/drivers/nvme/target/fabrics-cmd-auth.c
+++ b/drivers/nvme/target/fabrics-cmd-auth.c
@@ -509,7 +509,7 @@ void nvmet_execute_auth_receive(struct nvmet_req *req)
return;
}
- d = kmalloc(al, GFP_KERNEL);
+ d = kzalloc(al, GFP_KERNEL);
if (!d) {
status = NVME_SC_INTERNAL;
goto done;
diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c
index 67767e926b1b..8c6c69c1c0ca 100644
--- a/drivers/nvme/target/fc.c
+++ b/drivers/nvme/target/fc.c
@@ -569,7 +569,7 @@ nvmet_fc_alloc_ls_iodlist(struct nvmet_fc_tgtport *tgtport)
list_del(&iod->ls_rcv_list);
}
- kfree(iod);
+ kfree(tgtport->iod);
return -EFAULT;
}
diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index dbb6230b4b7f..01f4ef36383b 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -441,6 +441,19 @@ static int nvmet_tcp_map_data(struct nvmet_tcp_cmd *cmd)
if (!len)
return 0;
+ /*
+ * inline_data_size only bounds the in-capsule (type 0x01) SGL
+ * descriptor below. A non-inline transport SGL data-block
+ * descriptor skips that check entirely and would otherwise reach
+ * sgl_alloc() with an attacker-controlled len of up to 4 GiB,
+ * pinning that much kernel memory for a command that may never
+ * complete. Bound every descriptor type here, before allocating
+ * anything, using the same ceiling this file already applies to
+ * per-PDU H2C data.
+ */
+ if (len > NVMET_TCP_MAXH2CDATA)
+ return NVME_SC_SGL_INVALID_DATA | NVME_STATUS_DNR;
+
if (sgl->type == ((NVME_SGL_FMT_DATA_DESC << 4) |
NVME_SGL_FMT_OFFSET)) {
if (!nvme_is_write(cmd->req.cmd))
@@ -452,14 +465,15 @@ static int nvmet_tcp_map_data(struct nvmet_tcp_cmd *cmd)
}
cmd->req.transfer_len += len;
- cmd->req.sg = sgl_alloc(len, GFP_KERNEL, &cmd->req.sg_cnt);
+ cmd->req.sg = sgl_alloc(len, GFP_KERNEL | __GFP_NOWARN,
+ &cmd->req.sg_cnt);
if (!cmd->req.sg)
return NVME_SC_INTERNAL;
cmd->cur_sg = cmd->req.sg;
if (nvmet_tcp_has_data_in(cmd)) {
cmd->iov = kmalloc_array(cmd->req.sg_cnt,
- sizeof(*cmd->iov), GFP_KERNEL);
+ sizeof(*cmd->iov), GFP_KERNEL | __GFP_NOWARN);
if (!cmd->iov)
goto err;
}
diff --git a/drivers/pci/controller/pci-host-generic.c b/drivers/pci/controller/pci-host-generic.c
index 5f06f94db7b1..628d0fd0a7db 100644
--- a/drivers/pci/controller/pci-host-generic.c
+++ b/drivers/pci/controller/pci-host-generic.c
@@ -14,15 +14,6 @@
#include <linux/pci-ecam.h>
#include <linux/platform_device.h>
-static const struct pci_ecam_ops gen_pci_cfg_cam_bus_ops = {
- .bus_shift = 16,
- .pci_ops = {
- .map_bus = pci_ecam_map_bus,
- .read = pci_generic_config_read,
- .write = pci_generic_config_write,
- }
-};
-
static bool pci_dw_valid_device(struct pci_bus *bus, unsigned int devfn)
{
struct pci_config_window *cfg = bus->sysdata;
@@ -58,7 +49,7 @@ static const struct pci_ecam_ops pci_dw_ecam_bus_ops = {
static const struct of_device_id gen_pci_of_match[] = {
{ .compatible = "pci-host-cam-generic",
- .data = &gen_pci_cfg_cam_bus_ops },
+ .data = &pci_generic_cam_ops },
{ .compatible = "pci-host-ecam-generic",
.data = &pci_generic_ecam_ops },
diff --git a/drivers/pci/ecam.c b/drivers/pci/ecam.c
index 1c40d2506aef..97430664db3a 100644
--- a/drivers/pci/ecam.c
+++ b/drivers/pci/ecam.c
@@ -208,6 +208,19 @@ const struct pci_ecam_ops pci_generic_ecam_ops = {
};
EXPORT_SYMBOL_GPL(pci_generic_ecam_ops);
+/* CAM ops */
+const struct pci_ecam_ops pci_generic_cam_ops = {
+ .bus_shift = 16,
+ .pci_ops = {
+ .add_bus = pci_ecam_add_bus,
+ .remove_bus = pci_ecam_remove_bus,
+ .map_bus = pci_ecam_map_bus,
+ .read = pci_generic_config_read,
+ .write = pci_generic_config_write,
+ }
+};
+EXPORT_SYMBOL_GPL(pci_generic_cam_ops);
+
#if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS)
/* ECAM ops for 32-bit access only (non-compliant) */
const struct pci_ecam_ops pci_32b_ops = {
diff --git a/drivers/tty/serial/8250/8250_of.c b/drivers/tty/serial/8250/8250_of.c
index e14f47ef1172..04a0d51dd919 100644
--- a/drivers/tty/serial/8250/8250_of.c
+++ b/drivers/tty/serial/8250/8250_of.c
@@ -80,6 +80,44 @@ static int of_platform_serial_clk_notifier_cb(struct notifier_block *nb, unsigne
return NOTIFY_DONE;
}
+static int lpc32xx_handle_irq(struct uart_port *port)
+{
+ struct uart_8250_port *up = up_to_u8250p(port);
+ unsigned long flags;
+ unsigned int iir;
+ u16 status;
+ int ret;
+
+ serial8250_rpm_get(up);
+
+ iir = serial_port_in(port, UART_IIR);
+
+ /*
+ * The LPC32xx UART can assert an RX character-timeout interrupt while
+ * the RX FIFO is empty: IIR reports UART_IIR_RX_TIMEOUT but LSR.DR is
+ * clear. The timeout is only cleared by reading RHR, but the core RX
+ * path skips that read when the FIFO is empty, so the level-triggered
+ * IRQ re-fires forever and livelocks this single-core SoC. Do one
+ * throwaway RHR read to clear it; a healthy UART never reports a
+ * timeout with DR/BI clear, so no received data is ever discarded.
+ */
+ if ((iir & 0x3f) == UART_IIR_RX_TIMEOUT) {
+ uart_port_lock_irqsave(port, &flags);
+
+ status = serial_lsr_in(up);
+ if (!(status & (UART_LSR_DR | UART_LSR_BI)))
+ serial_port_in(port, UART_RX);
+
+ uart_port_unlock_irqrestore(port, flags);
+ }
+
+ ret = serial8250_handle_irq(port, iir);
+
+ serial8250_rpm_put(up);
+
+ return ret;
+}
+
/*
* Fill a struct uart_port for a given device node
*/
@@ -163,6 +201,9 @@ static int of_platform_serial_setup(struct platform_device *ofdev,
case PORT_NPCM:
ret = npcm_setup(port);
break;
+ case PORT_LPC3220:
+ port->handle_irq = lpc32xx_handle_irq;
+ break;
default:
/* Nothing to do */
ret = 0;
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index 3713b23536dc..8934fbdb0cf9 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -1171,7 +1171,7 @@ static void pl011_dma_shutdown(struct uart_amba_port *uap)
if (uap->using_tx_dma) {
/* In theory, this should already be done by pl011_dma_flush_buffer */
- dmaengine_terminate_all(uap->dmatx.chan);
+ dmaengine_terminate_sync(uap->dmatx.chan);
if (uap->dmatx.queued) {
dma_unmap_single(uap->dmatx.chan->device->dev,
uap->dmatx.dma, uap->dmatx.len,
@@ -1184,12 +1184,12 @@ static void pl011_dma_shutdown(struct uart_amba_port *uap)
}
if (uap->using_rx_dma) {
- dmaengine_terminate_all(uap->dmarx.chan);
+ if (uap->dmarx.poll_rate)
+ timer_delete_sync(&uap->dmarx.timer);
+ dmaengine_terminate_sync(uap->dmarx.chan);
/* Clean up the RX DMA */
pl011_dmabuf_free(uap->dmarx.chan, &uap->dmarx.dbuf_a, DMA_FROM_DEVICE);
pl011_dmabuf_free(uap->dmarx.chan, &uap->dmarx.dbuf_b, DMA_FROM_DEVICE);
- if (uap->dmarx.poll_rate)
- del_timer_sync(&uap->dmarx.timer);
uap->using_rx_dma = false;
}
}
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 01de811bc150..80b821f7b9a2 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -11,6 +11,7 @@
#define DEFAULT_SYMBOL_NAMESPACE "SERIAL_NXP_SC16IS7XX"
#include <linux/bits.h>
+#include <linux/cleanup.h>
#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/device.h>
@@ -327,7 +328,7 @@ struct sc16is7xx_one_config {
struct sc16is7xx_one {
struct uart_port port;
struct regmap *regmap;
- struct mutex efr_lock; /* EFR registers access */
+ struct mutex lock; /* For registers sharing same address space. */
struct kthread_work tx_work;
struct kthread_work reg_work;
struct kthread_delayed_work ms_work;
@@ -433,7 +434,7 @@ static void sc16is7xx_efr_lock(struct uart_port *port)
{
struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);
- mutex_lock(&one->efr_lock);
+ mutex_lock(&one->lock);
/* Backup content of LCR. */
one->old_lcr = sc16is7xx_port_read(port, SC16IS7XX_LCR_REG);
@@ -455,7 +456,7 @@ static void sc16is7xx_efr_unlock(struct uart_port *port)
/* Restore original content of LCR */
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, one->old_lcr);
- mutex_unlock(&one->efr_lock);
+ mutex_unlock(&one->lock);
}
static void sc16is7xx_ier_clear(struct uart_port *port, u8 bit)
@@ -590,7 +591,7 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
SC16IS7XX_MCR_CLKSEL_BIT,
prescaler == 1 ? 0 : SC16IS7XX_MCR_CLKSEL_BIT);
- mutex_lock(&one->efr_lock);
+ mutex_lock(&one->lock);
/* Backup LCR and access special register set (DLL/DLH) */
lcr = sc16is7xx_port_read(port, SC16IS7XX_LCR_REG);
@@ -606,7 +607,7 @@ static int sc16is7xx_set_baud(struct uart_port *port, int baud)
/* Restore LCR and access to general register set */
sc16is7xx_port_write(port, SC16IS7XX_LCR_REG, lcr);
- mutex_unlock(&one->efr_lock);
+ mutex_unlock(&one->lock);
return DIV_ROUND_CLOSEST((clk / prescaler) / 16, div);
}
@@ -753,7 +754,7 @@ static void sc16is7xx_update_mlines(struct sc16is7xx_one *one)
unsigned long flags;
unsigned int status, changed;
- lockdep_assert_held_once(&one->efr_lock);
+ lockdep_assert_held_once(&one->lock);
status = sc16is7xx_get_hwmctrl(port);
changed = status ^ one->old_mctrl;
@@ -779,18 +780,15 @@ static void sc16is7xx_update_mlines(struct sc16is7xx_one *one)
static bool sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno)
{
- bool rc = true;
unsigned int iir, rxlen;
struct uart_port *port = &s->p[portno].port;
struct sc16is7xx_one *one = to_sc16is7xx_one(port, port);
- mutex_lock(&one->efr_lock);
+ guard(mutex)(&one->lock);
iir = sc16is7xx_port_read(port, SC16IS7XX_IIR_REG);
- if (iir & SC16IS7XX_IIR_NO_INT_BIT) {
- rc = false;
- goto out_port_irq;
- }
+ if (iir & SC16IS7XX_IIR_NO_INT_BIT)
+ return false;
iir &= SC16IS7XX_IIR_ID_MASK;
@@ -830,10 +828,7 @@ static bool sc16is7xx_port_irq(struct sc16is7xx_port *s, int portno)
break;
}
-out_port_irq:
- mutex_unlock(&one->efr_lock);
-
- return rc;
+ return true;
}
static irqreturn_t sc16is7xx_irq(int irq, void *dev_id)
@@ -863,9 +858,11 @@ static void sc16is7xx_tx_proc(struct kthread_work *ws)
(port->rs485.delay_rts_before_send > 0))
msleep(port->rs485.delay_rts_before_send);
- mutex_lock(&one->efr_lock);
+ guard(mutex)(&one->lock);
+ sc16is7xx_port_update(port, SC16IS7XX_IER_REG,
+ SC16IS7XX_IER_THRI_BIT,
+ SC16IS7XX_IER_THRI_BIT);
sc16is7xx_handle_tx(port);
- mutex_unlock(&one->efr_lock);
}
static void sc16is7xx_reconf_rs485(struct uart_port *port)
@@ -932,9 +929,8 @@ static void sc16is7xx_ms_proc(struct kthread_work *ws)
struct sc16is7xx_port *s = dev_get_drvdata(one->port.dev);
if (one->port.state) {
- mutex_lock(&one->efr_lock);
- sc16is7xx_update_mlines(one);
- mutex_unlock(&one->efr_lock);
+ scoped_guard(mutex, &one->lock)
+ sc16is7xx_update_mlines(one);
kthread_queue_delayed_work(&s->kworker, &one->ms_work, HZ);
}
@@ -1604,7 +1600,7 @@ int sc16is7xx_probe(struct device *dev, const struct sc16is7xx_devtype *devtype,
s->p[i].old_mctrl = 0;
s->p[i].regmap = regmaps[i];
- mutex_init(&s->p[i].efr_lock);
+ mutex_init(&s->p[i].lock);
ret = uart_get_rs485_mode(&s->p[i].port);
if (ret)
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index 3ee282c8d248..4527f9eb9373 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -1799,8 +1799,11 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
if (ret == 0) {
/* Range is not mapped */
path = ext4_find_extent(inode, cur, path, 0);
- if (IS_ERR(path))
+ if (IS_ERR(path)) {
+ ret = PTR_ERR(path);
+ path = NULL;
goto out;
+ }
memset(&newex, 0, sizeof(newex));
newex.ee_block = cpu_to_le32(cur);
ext4_ext_store_pblock(
@@ -1812,8 +1815,11 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
path = ext4_ext_insert_extent(NULL, inode,
path, &newex, 0);
up_write((&EXT4_I(inode)->i_data_sem));
- if (IS_ERR(path))
+ if (IS_ERR(path)) {
+ ret = PTR_ERR(path);
+ path = NULL;
goto out;
+ }
goto next;
}
@@ -1860,10 +1866,11 @@ static int ext4_fc_replay_add_range(struct super_block *sb,
}
ext4_ext_replay_shrink_inode(inode, i_size_read(inode) >>
sb->s_blocksize_bits);
+ ret = 0;
out:
ext4_free_ext_path(path);
iput(inode);
- return 0;
+ return ret;
}
/* Replay DEL_RANGE tag */
@@ -1924,9 +1931,10 @@ ext4_fc_replay_del_range(struct super_block *sb,
ext4_ext_replay_shrink_inode(inode,
i_size_read(inode) >> sb->s_blocksize_bits);
ext4_mark_inode_dirty(NULL, inode);
+ ret = 0;
out:
iput(inode);
- return 0;
+ return ret;
}
static void ext4_fc_set_bitmaps_and_counters(struct super_block *sb)
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 3f3102643852..7f1af018641c 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -2075,12 +2075,13 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
* stable so we can check the additional
* reference fits.
*/
- ref = le32_to_cpu(BHDR(new_bh)->h_refcount) + 1;
- if (ref > EXT4_XATTR_REFCOUNT_MAX) {
+ ref = le32_to_cpu(BHDR(new_bh)->h_refcount);
+ if (ref >= EXT4_XATTR_REFCOUNT_MAX) {
/*
* Undo everything and check mbcache
* again.
*/
+ clear_bit(MBE_REUSABLE_B, &ce->e_flags);
unlock_buffer(new_bh);
dquot_free_block(inode,
EXT4_C2B(EXT4_SB(sb),
@@ -2091,6 +2092,7 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
new_bh = NULL;
goto inserted;
}
+ ref++;
BHDR(new_bh)->h_refcount = cpu_to_le32(ref);
if (ref == EXT4_XATTR_REFCOUNT_MAX)
clear_bit(MBE_REUSABLE_B, &ce->e_flags);
@@ -2839,6 +2841,7 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
s_min_extra_isize) {
tried_min_extra_isize++;
new_extra_isize = s_min_extra_isize;
+ error = 0;
goto retry;
}
goto cleanup;
diff --git a/fs/netfs/buffered_read.c b/fs/netfs/buffered_read.c
index 5f3073ad4208..d99284e35126 100644
--- a/fs/netfs/buffered_read.c
+++ b/fs/netfs/buffered_read.c
@@ -734,7 +734,7 @@ int netfs_write_begin(struct netfs_inode *ctx,
ret = PTR_ERR(rreq);
goto error;
}
- rreq->no_unlock_folio = folio->index;
+ rreq->no_unlock_folio = folio;
__set_bit(NETFS_RREQ_NO_UNLOCK_FOLIO, &rreq->flags);
ret = netfs_begin_cache_read(rreq, ctx);
@@ -800,7 +800,7 @@ int netfs_prefetch_for_write(struct file *file, struct folio *folio,
goto error;
}
- rreq->no_unlock_folio = folio->index;
+ rreq->no_unlock_folio = folio;
__set_bit(NETFS_RREQ_NO_UNLOCK_FOLIO, &rreq->flags);
ret = netfs_begin_cache_read(rreq, ctx);
if (ret == -ENOMEM || ret == -EINTR || ret == -ERESTARTSYS)
diff --git a/fs/netfs/read_collect.c b/fs/netfs/read_collect.c
index 2955dc31d3c7..782d7b730196 100644
--- a/fs/netfs/read_collect.c
+++ b/fs/netfs/read_collect.c
@@ -73,7 +73,7 @@ static void netfs_unlock_read_folio(struct netfs_io_subrequest *subreq,
}
if (!test_bit(NETFS_RREQ_DONT_UNLOCK_FOLIOS, &rreq->flags)) {
- if (folio->index == rreq->no_unlock_folio &&
+ if (folio == rreq->no_unlock_folio &&
test_bit(NETFS_RREQ_NO_UNLOCK_FOLIO, &rreq->flags)) {
_debug("no unlock");
} else {
diff --git a/fs/netfs/read_retry.c b/fs/netfs/read_retry.c
index 42abf574e678..a5487b00ec56 100644
--- a/fs/netfs/read_retry.c
+++ b/fs/netfs/read_retry.c
@@ -249,7 +249,7 @@ void netfs_unlock_abandoned_read_pages(struct netfs_io_request *rreq)
struct folio *folio = folioq_folio(p, slot);
if (folio && !folioq_is_marked2(p, slot)) {
- if (folio->index == rreq->no_unlock_folio &&
+ if (folio == rreq->no_unlock_folio &&
test_bit(NETFS_RREQ_NO_UNLOCK_FOLIO,
&rreq->flags)) {
_debug("no unlock");
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 069732e657d7..fbf32471f8a3 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -736,12 +736,10 @@ static int ocfs2_xattr_extend_allocation(struct inode *inode,
prev_clusters;
if (why != RESTART_NONE && clusters_to_add) {
- /*
- * We can only fail in case the alloc file doesn't give
- * up enough clusters.
- */
- BUG_ON(why == RESTART_META);
-
+ if (why == RESTART_META) {
+ status = -ENOSPC;
+ break;
+ }
credits = ocfs2_calc_extend_credits(inode->i_sb,
&vb->vb_xv->xr_list);
status = ocfs2_extend_trans(handle, credits);
@@ -3210,6 +3208,14 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
} else
credits += OCFS2_SUBALLOC_ALLOC + 1;
+ /*
+ * Reserve metadata for the new xattr's value extent tree.
+ * The not_found path above adds credits for this tree but
+ * omits meta_add, leaving meta_ac NULL for large values.
+ */
+ if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE)
+ meta_add += ocfs2_extend_meta_needed(&def_xv.xv.xr_list);
+
/*
* This cluster will be used either for new bucket or for
* new xattr block.
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
index 7c307025cfcb..62079d2e630d 100644
--- a/fs/xfs/libxfs/xfs_attr_leaf.c
+++ b/fs/xfs/libxfs/xfs_attr_leaf.c
@@ -268,6 +268,13 @@ xfs_attr3_leaf_verify_entry(
*/
if (ent->flags & XFS_ATTR_LOCAL) {
lentry = xfs_attr3_leaf_name_local(leaf, idx);
+
+ /* Validate lentry pointer is within bounds before field access */
+ if ((char *)lentry >= buf_end)
+ return __this_address;
+ if ((char *)lentry + offsetof(struct xfs_attr_leaf_name_local, nameval) > buf_end)
+ return __this_address;
+
namesize = xfs_attr_leaf_entsize_local(lentry->namelen,
be16_to_cpu(lentry->valuelen));
name_end = (char *)lentry + namesize;
@@ -275,6 +282,13 @@ xfs_attr3_leaf_verify_entry(
return __this_address;
} else {
rentry = xfs_attr3_leaf_name_remote(leaf, idx);
+
+ /* Validate rentry pointer is within bounds before field access */
+ if ((char *)rentry >= buf_end)
+ return __this_address;
+ if ((char *)rentry + offsetof(struct xfs_attr_leaf_name_remote, name) > buf_end)
+ return __this_address;
+
namesize = xfs_attr_leaf_entsize_remote(rentry->namelen);
name_end = (char *)rentry + namesize;
if (rentry->namelen == 0)
diff --git a/fs/xfs/libxfs/xfs_format.h b/fs/xfs/libxfs/xfs_format.h
index e1bfee0c3b1a..092200829619 100644
--- a/fs/xfs/libxfs/xfs_format.h
+++ b/fs/xfs/libxfs/xfs_format.h
@@ -1625,8 +1625,8 @@ struct xfs_refcount_key {
__be32 rc_startblock; /* starting block number */
};
-#define MAXREFCOUNT ((xfs_nlink_t)~0U)
-#define MAXREFCEXTLEN ((xfs_extlen_t)~0U)
+#define XFS_REFC_REFCOUNT_MAX ((xfs_nlink_t)~0U)
+#define XFS_REFC_LEN_MAX ((xfs_extlen_t)~0U)
/* btree pointer type */
typedef __be32 xfs_refcount_ptr_t;
diff --git a/fs/xfs/libxfs/xfs_log_recover.h b/fs/xfs/libxfs/xfs_log_recover.h
index 521d327e4c89..97892ea59828 100644
--- a/fs/xfs/libxfs/xfs_log_recover.h
+++ b/fs/xfs/libxfs/xfs_log_recover.h
@@ -98,7 +98,7 @@ struct xlog_recover_item {
struct list_head ri_list;
int ri_cnt; /* count of regions found */
int ri_total; /* total regions */
- struct xfs_log_iovec *ri_buf; /* ptr to regions buffer */
+ struct kvec *ri_buf; /* ptr to regions buffer */
const struct xlog_recover_item_ops *ri_ops;
};
@@ -111,7 +111,7 @@ struct xlog_recover {
struct list_head r_itemq; /* q for items */
};
-#define ITEM_TYPE(i) (*(unsigned short *)(i)->ri_buf[0].i_addr)
+#define ITEM_TYPE(i) (*(unsigned short *)(i)->ri_buf[0].iov_base)
#define XLOG_RECOVER_CRCPASS 0
#define XLOG_RECOVER_PASS1 1
diff --git a/fs/xfs/libxfs/xfs_refcount.c b/fs/xfs/libxfs/xfs_refcount.c
index e26a2472c25d..b30850049fd1 100644
--- a/fs/xfs/libxfs/xfs_refcount.c
+++ b/fs/xfs/libxfs/xfs_refcount.c
@@ -128,7 +128,7 @@ xfs_refcount_check_irec(
struct xfs_perag *pag,
const struct xfs_refcount_irec *irec)
{
- if (irec->rc_blockcount == 0 || irec->rc_blockcount > MAXREFCEXTLEN)
+ if (irec->rc_blockcount == 0 || irec->rc_blockcount > XFS_REFC_LEN_MAX)
return __this_address;
if (!xfs_refcount_check_domain(irec))
@@ -138,7 +138,7 @@ xfs_refcount_check_irec(
if (!xfs_verify_agbext(pag, irec->rc_startblock, irec->rc_blockcount))
return __this_address;
- if (irec->rc_refcount == 0 || irec->rc_refcount > MAXREFCOUNT)
+ if (irec->rc_refcount == 0 || irec->rc_refcount > XFS_REFC_REFCOUNT_MAX)
return __this_address;
return NULL;
@@ -853,9 +853,9 @@ xfs_refc_merge_refcount(
const struct xfs_refcount_irec *irec,
enum xfs_refc_adjust_op adjust)
{
- /* Once a record hits MAXREFCOUNT, it is pinned there forever */
- if (irec->rc_refcount == MAXREFCOUNT)
- return MAXREFCOUNT;
+ /* Once a record hits XFS_REFC_REFCOUNT_MAX, it is pinned forever */
+ if (irec->rc_refcount == XFS_REFC_REFCOUNT_MAX)
+ return XFS_REFC_REFCOUNT_MAX;
return irec->rc_refcount + adjust;
}
@@ -898,7 +898,7 @@ xfs_refc_want_merge_center(
* hence we need to catch u32 addition overflows here.
*/
ulen += cleft->rc_blockcount + right->rc_blockcount;
- if (ulen >= MAXREFCEXTLEN)
+ if (ulen >= XFS_REFC_LEN_MAX)
return false;
*ulenp = ulen;
@@ -933,7 +933,7 @@ xfs_refc_want_merge_left(
* hence we need to catch u32 addition overflows here.
*/
ulen += cleft->rc_blockcount;
- if (ulen >= MAXREFCEXTLEN)
+ if (ulen >= XFS_REFC_LEN_MAX)
return false;
return true;
@@ -967,7 +967,7 @@ xfs_refc_want_merge_right(
* hence we need to catch u32 addition overflows here.
*/
ulen += cright->rc_blockcount;
- if (ulen >= MAXREFCEXTLEN)
+ if (ulen >= XFS_REFC_LEN_MAX)
return false;
return true;
@@ -1196,7 +1196,7 @@ xfs_refcount_adjust_extents(
* Adjust the reference count and either update the tree
* (incr) or free the blocks (decr).
*/
- if (ext.rc_refcount == MAXREFCOUNT)
+ if (ext.rc_refcount == XFS_REFC_REFCOUNT_MAX)
goto skip;
ext.rc_refcount += adj;
trace_xfs_refcount_modify_extent(cur, &ext);
diff --git a/fs/xfs/scrub/agheader.c b/fs/xfs/scrub/agheader.c
index 0f2f1852d58f..938885a39163 100644
--- a/fs/xfs/scrub/agheader.c
+++ b/fs/xfs/scrub/agheader.c
@@ -18,6 +18,8 @@
#include "xfs_inode.h"
#include "scrub/scrub.h"
#include "scrub/common.h"
+#include "scrub/bitmap.h"
+#include "scrub/agino_bitmap.h"
int
xchk_setup_agheader(
@@ -890,41 +892,85 @@ xchk_agi_xref(
/* scrub teardown will take care of sc->sa for us */
}
+/*
+ * Walk the incore unlinked list for a particular AGI bucket to construct
+ * the unlinked inode bitmap for later reconstruction of the unlinked list.
+ * Returns 1 if we should keep checking, 0 to stop checking, or a negative
+ * errno.
+ */
+static int
+xchk_iunlink_bucket(
+ struct xfs_scrub *sc,
+ unsigned int bucket,
+ xfs_agino_t agino)
+{
+ struct xagino_bitmap seen;
+ int ret;
+
+ xagino_bitmap_init(&seen);
+
+ while (agino != NULLAGINO) {
+ struct xfs_inode *ip;
+ unsigned int len = 1;
+
+ if (agino % XFS_AGI_UNLINKED_BUCKETS != bucket) {
+ xchk_block_set_corrupt(sc, sc->sa.agi_bp);
+ goto bad;
+ }
+
+ if (xagino_bitmap_test(&seen, agino, &len)) {
+ xchk_block_set_corrupt(sc, sc->sa.agi_bp);
+ goto bad;
+ }
+
+ ip = xfs_iunlink_lookup(sc->sa.pag, agino);
+ if (!ip) {
+ xchk_block_set_corrupt(sc, sc->sa.agi_bp);
+ goto bad;
+ }
+
+ if (!xfs_inode_on_unlinked_list(ip)) {
+ xchk_block_set_corrupt(sc, sc->sa.agi_bp);
+ goto bad;
+ }
+
+ ret = xagino_bitmap_set(&seen, agino, 1);
+ if (ret)
+ goto out_bitmap;
+
+ agino = ip->i_next_unlinked;
+ }
+ ret = 1;
+
+out_bitmap:
+ xagino_bitmap_destroy(&seen);
+ return ret;
+bad:
+ ret = 0;
+ goto out_bitmap;
+}
+
/*
* Check the unlinked buckets for links to bad inodes. We hold the AGI, so
* there cannot be any threads updating unlinked list pointers in this AG.
*/
-STATIC void
+STATIC int
xchk_iunlink(
struct xfs_scrub *sc,
struct xfs_agi *agi)
{
unsigned int i;
- struct xfs_inode *ip;
for (i = 0; i < XFS_AGI_UNLINKED_BUCKETS; i++) {
- xfs_agino_t agino = be32_to_cpu(agi->agi_unlinked[i]);
-
- while (agino != NULLAGINO) {
- if (agino % XFS_AGI_UNLINKED_BUCKETS != i) {
- xchk_block_set_corrupt(sc, sc->sa.agi_bp);
- return;
- }
-
- ip = xfs_iunlink_lookup(sc->sa.pag, agino);
- if (!ip) {
- xchk_block_set_corrupt(sc, sc->sa.agi_bp);
- return;
- }
-
- if (!xfs_inode_on_unlinked_list(ip)) {
- xchk_block_set_corrupt(sc, sc->sa.agi_bp);
- return;
- }
-
- agino = ip->i_next_unlinked;
- }
+ int ret;
+
+ ret = xchk_iunlink_bucket(sc, i,
+ be32_to_cpu(agi->agi_unlinked[i]));
+ if (ret < 1)
+ return ret;
}
+
+ return 0;
}
/* Scrub the AGI. */
@@ -1011,7 +1057,9 @@ xchk_agi(
if (pag->pagi_freecount != be32_to_cpu(agi->agi_freecount))
xchk_block_set_corrupt(sc, sc->sa.agi_bp);
- xchk_iunlink(sc, agi);
+ error = xchk_iunlink(sc, agi);
+ if (error)
+ goto out;
xchk_agi_xref(sc);
out:
diff --git a/fs/xfs/scrub/agheader_repair.c b/fs/xfs/scrub/agheader_repair.c
index 235cefe9422c..5cb03887d09a 100644
--- a/fs/xfs/scrub/agheader_repair.c
+++ b/fs/xfs/scrub/agheader_repair.c
@@ -1089,18 +1089,22 @@ xrep_iunlink_walk_ondisk_bucket(
struct xrep_agi *ragi,
unsigned int bucket)
{
+ struct xagino_bitmap seen;
struct xfs_scrub *sc = ragi->sc;
struct xfs_agi *agi = ragi->agi_bp->b_addr;
xfs_agino_t prev_agino = NULLAGINO;
xfs_agino_t next_agino;
int error = 0;
+ xagino_bitmap_init(&seen);
+
next_agino = be32_to_cpu(agi->agi_unlinked[bucket]);
while (next_agino != NULLAGINO) {
xfs_agino_t agino = next_agino;
+ unsigned int len = 1;
if (xchk_should_terminate(ragi->sc, &error))
- return error;
+ goto out_bitmap;
trace_xrep_iunlink_walk_ondisk_bucket(sc->sa.pag, bucket,
prev_agino, agino);
@@ -1108,15 +1112,24 @@ xrep_iunlink_walk_ondisk_bucket(
if (bucket != agino % XFS_AGI_UNLINKED_BUCKETS)
break;
+ if (xagino_bitmap_test(&seen, agino, &len))
+ break;
+
next_agino = xrep_iunlink_next(sc, agino);
if (!next_agino)
next_agino = xrep_iunlink_reload_next(ragi, prev_agino,
agino);
+ error = xagino_bitmap_set(&seen, agino, 1);
+ if (error)
+ goto out_bitmap;
+
prev_agino = agino;
}
- return 0;
+out_bitmap:
+ xagino_bitmap_destroy(&seen);
+ return error;
}
/* Decide if this is an unlinked inode in this AG. */
diff --git a/fs/xfs/scrub/refcount.c b/fs/xfs/scrub/refcount.c
index cccf39d917a0..dc3a75ac26ce 100644
--- a/fs/xfs/scrub/refcount.c
+++ b/fs/xfs/scrub/refcount.c
@@ -421,7 +421,7 @@ xchk_refcount_mergeable(
if (r1->rc_refcount != r2->rc_refcount)
return false;
if ((unsigned long long)r1->rc_blockcount + r2->rc_blockcount >
- MAXREFCEXTLEN)
+ XFS_REFC_LEN_MAX)
return false;
return true;
diff --git a/fs/xfs/scrub/refcount_repair.c b/fs/xfs/scrub/refcount_repair.c
index 1512e7363de1..8cf3e84e83a3 100644
--- a/fs/xfs/scrub/refcount_repair.c
+++ b/fs/xfs/scrub/refcount_repair.c
@@ -177,7 +177,7 @@ xrep_refc_stash(
if (xchk_should_terminate(sc, &error))
return error;
- irec.rc_refcount = min_t(uint64_t, MAXREFCOUNT, refcount);
+ irec.rc_refcount = min_t(uint64_t, XFS_REFC_REFCOUNT_MAX, refcount);
error = xrep_refc_check_ext(rr->sc, &irec);
if (error)
@@ -416,7 +416,7 @@ xrep_refc_find_refcounts(
/*
* Set up a bag to store all the rmap records that we're tracking to
* generate a reference count record. If the size of the bag exceeds
- * MAXREFCOUNT, we clamp rc_refcount.
+ * XFS_REFC_REFCOUNT_MAX, we clamp rc_refcount.
*/
error = rcbag_init(sc->mp, sc->xmbtp, &rcstack);
if (error)
diff --git a/fs/xfs/xfs_attr_item.c b/fs/xfs/xfs_attr_item.c
index b81eafc9543b..1c886bd50df1 100644
--- a/fs/xfs/xfs_attr_item.c
+++ b/fs/xfs/xfs_attr_item.c
@@ -952,50 +952,50 @@ static inline void *
xfs_attri_validate_name_iovec(
struct xfs_mount *mp,
struct xfs_attri_log_format *attri_formatp,
- const struct xfs_log_iovec *iovec,
+ const struct kvec *iovec,
unsigned int name_len)
{
- if (iovec->i_len != xlog_calc_iovec_len(name_len)) {
+ if (iovec->iov_len != xlog_calc_iovec_len(name_len)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
attri_formatp, sizeof(*attri_formatp));
return NULL;
}
- if (!xfs_attr_namecheck(attri_formatp->alfi_attr_filter, iovec->i_addr,
+ if (!xfs_attr_namecheck(attri_formatp->alfi_attr_filter, iovec->iov_base,
name_len)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
attri_formatp, sizeof(*attri_formatp));
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- iovec->i_addr, iovec->i_len);
+ iovec->iov_base, iovec->iov_len);
return NULL;
}
- return iovec->i_addr;
+ return iovec->iov_base;
}
static inline void *
xfs_attri_validate_value_iovec(
struct xfs_mount *mp,
struct xfs_attri_log_format *attri_formatp,
- const struct xfs_log_iovec *iovec,
+ const struct kvec *iovec,
unsigned int value_len)
{
- if (iovec->i_len != xlog_calc_iovec_len(value_len)) {
+ if (iovec->iov_len != xlog_calc_iovec_len(value_len)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
attri_formatp, sizeof(*attri_formatp));
return NULL;
}
if ((attri_formatp->alfi_attr_filter & XFS_ATTR_PARENT) &&
- !xfs_parent_valuecheck(mp, iovec->i_addr, value_len)) {
+ !xfs_parent_valuecheck(mp, iovec->iov_base, value_len)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
attri_formatp, sizeof(*attri_formatp));
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- iovec->i_addr, iovec->i_len);
+ iovec->iov_base, iovec->iov_len);
return NULL;
}
- return iovec->i_addr;
+ return iovec->iov_base;
}
STATIC int
@@ -1022,13 +1022,13 @@ xlog_recover_attri_commit_pass2(
/* Validate xfs_attri_log_format before the large memory allocation */
len = sizeof(struct xfs_attri_log_format);
- if (item->ri_buf[i].i_len != len) {
+ if (item->ri_buf[i].iov_len != len) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
- attri_formatp = item->ri_buf[i].i_addr;
+ attri_formatp = item->ri_buf[i].iov_base;
if (!xfs_attri_validate(mp, attri_formatp)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
attri_formatp, len);
@@ -1217,10 +1217,10 @@ xlog_recover_attrd_commit_pass2(
{
struct xfs_attrd_log_format *attrd_formatp;
- attrd_formatp = item->ri_buf[0].i_addr;
- if (item->ri_buf[0].i_len != sizeof(struct xfs_attrd_log_format)) {
+ attrd_formatp = item->ri_buf[0].iov_base;
+ if (item->ri_buf[0].iov_len != sizeof(struct xfs_attrd_log_format)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
diff --git a/fs/xfs/xfs_bmap_item.c b/fs/xfs/xfs_bmap_item.c
index 5f10a61c9b25..4fb5eb431c1a 100644
--- a/fs/xfs/xfs_bmap_item.c
+++ b/fs/xfs/xfs_bmap_item.c
@@ -653,24 +653,24 @@ xlog_recover_bui_commit_pass2(
struct xfs_bui_log_format *bui_formatp;
size_t len;
- bui_formatp = item->ri_buf[0].i_addr;
+ bui_formatp = item->ri_buf[0].iov_base;
- if (item->ri_buf[0].i_len < xfs_bui_log_format_sizeof(0)) {
+ if (item->ri_buf[0].iov_len < xfs_bui_log_format_sizeof(0)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
if (bui_formatp->bui_nextents != XFS_BUI_MAX_FAST_EXTENTS) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
len = xfs_bui_log_format_sizeof(bui_formatp->bui_nextents);
- if (item->ri_buf[0].i_len != len) {
+ if (item->ri_buf[0].iov_len != len) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
@@ -704,10 +704,10 @@ xlog_recover_bud_commit_pass2(
{
struct xfs_bud_log_format *bud_formatp;
- bud_formatp = item->ri_buf[0].i_addr;
- if (item->ri_buf[0].i_len != sizeof(struct xfs_bud_log_format)) {
+ bud_formatp = item->ri_buf[0].iov_base;
+ if (item->ri_buf[0].iov_len != sizeof(struct xfs_bud_log_format)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index f4b9cd959b68..b746a1a0f8dd 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -35,16 +35,16 @@ static inline struct xfs_buf_log_item *BUF_ITEM(struct xfs_log_item *lip)
/* Is this log iovec plausibly large enough to contain the buffer log format? */
bool
xfs_buf_log_check_iovec(
- struct xfs_log_iovec *iovec)
+ struct kvec *iovec)
{
- struct xfs_buf_log_format *blfp = iovec->i_addr;
+ struct xfs_buf_log_format *blfp = iovec->iov_base;
char *bmp_end;
char *item_end;
- if (offsetof(struct xfs_buf_log_format, blf_data_map) > iovec->i_len)
+ if (offsetof(struct xfs_buf_log_format, blf_data_map) > iovec->iov_len)
return false;
- item_end = (char *)iovec->i_addr + iovec->i_len;
+ item_end = (char *)iovec->iov_base + iovec->iov_len;
bmp_end = (char *)&blfp->blf_data_map[blfp->blf_map_size];
return bmp_end <= item_end;
}
diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h
index 4d8a6aece995..7ddda0aa9dac 100644
--- a/fs/xfs/xfs_buf_item.h
+++ b/fs/xfs/xfs_buf_item.h
@@ -67,7 +67,7 @@ static inline void xfs_buf_dquot_io_fail(struct xfs_buf *bp)
}
#endif /* CONFIG_XFS_QUOTA */
void xfs_buf_iodone(struct xfs_buf *);
-bool xfs_buf_log_check_iovec(struct xfs_log_iovec *iovec);
+bool xfs_buf_log_check_iovec(struct kvec *iovec);
extern struct kmem_cache *xfs_buf_item_cache;
diff --git a/fs/xfs/xfs_buf_item_recover.c b/fs/xfs/xfs_buf_item_recover.c
index 0185c92df8c2..5917a5d0ef83 100644
--- a/fs/xfs/xfs_buf_item_recover.c
+++ b/fs/xfs/xfs_buf_item_recover.c
@@ -157,7 +157,7 @@ STATIC enum xlog_recover_reorder
xlog_recover_buf_reorder(
struct xlog_recover_item *item)
{
- struct xfs_buf_log_format *buf_f = item->ri_buf[0].i_addr;
+ struct xfs_buf_log_format *buf_f = item->ri_buf[0].iov_base;
if (buf_f->blf_flags & XFS_BLF_CANCEL)
return XLOG_REORDER_CANCEL_LIST;
@@ -171,7 +171,7 @@ xlog_recover_buf_ra_pass2(
struct xlog *log,
struct xlog_recover_item *item)
{
- struct xfs_buf_log_format *buf_f = item->ri_buf[0].i_addr;
+ struct xfs_buf_log_format *buf_f = item->ri_buf[0].iov_base;
xlog_buf_readahead(log, buf_f->blf_blkno, buf_f->blf_len, NULL);
}
@@ -185,11 +185,11 @@ xlog_recover_buf_commit_pass1(
struct xlog *log,
struct xlog_recover_item *item)
{
- struct xfs_buf_log_format *bf = item->ri_buf[0].i_addr;
+ struct xfs_buf_log_format *bf = item->ri_buf[0].iov_base;
if (!xfs_buf_log_check_iovec(&item->ri_buf[0])) {
- xfs_err(log->l_mp, "bad buffer log item size (%d)",
- item->ri_buf[0].i_len);
+ xfs_err(log->l_mp, "bad buffer log item size (%zd)",
+ item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
@@ -444,7 +444,7 @@ xlog_recover_validate_buf_type(
* given buffer. The bitmap in the buf log format structure indicates
* where to place the logged data.
*/
-STATIC void
+STATIC int
xlog_recover_do_reg_buffer(
struct xfs_mount *mp,
struct xlog_recover_item *item,
@@ -470,10 +470,26 @@ xlog_recover_do_reg_buffer(
nbits = xfs_contig_bits(buf_f->blf_data_map,
buf_f->blf_map_size, bit);
ASSERT(nbits > 0);
- ASSERT(item->ri_buf[i].i_addr != NULL);
- ASSERT(item->ri_buf[i].i_len % XFS_BLF_CHUNK == 0);
- ASSERT(BBTOB(bp->b_length) >=
- ((uint)bit << XFS_BLF_SHIFT) + (nbits << XFS_BLF_SHIFT));
+ ASSERT(item->ri_buf[i].iov_base != NULL);
+ ASSERT(item->ri_buf[i].iov_len % XFS_BLF_CHUNK == 0);
+ /*
+ * The bitmap is only trustworthy to the extent that it
+ * describes a region that actually fits inside the buffer we
+ * read in based on the (attacker-controlled) blf_len. Do not
+ * rely on an ASSERT() for this -- it compiles away entirely on
+ * non-DEBUG kernels, which is exactly where this matters, so
+ * validate it for real and abort recovery of this buffer rather
+ * than copying past the end of it.
+ */
+ if (XFS_IS_CORRUPT(mp, BBTOB(bp->b_length) <
+ ((uint)bit << XFS_BLF_SHIFT) +
+ (nbits << XFS_BLF_SHIFT))) {
+ xfs_alert(mp,
+ "Bad buffer log item dirty bitmap (bit %d, nbits %d) for %d-byte buffer at daddr 0x%llx.",
+ bit, nbits, BBTOB(bp->b_length),
+ xfs_buf_daddr(bp));
+ return -EFSCORRUPTED;
+ }
/*
* The dirty regions logged in the buffer, even though
@@ -483,8 +499,8 @@ xlog_recover_do_reg_buffer(
* the log. Hence we need to trim nbits back to the length of
* the current region being copied out of the log.
*/
- if (item->ri_buf[i].i_len < (nbits << XFS_BLF_SHIFT))
- nbits = item->ri_buf[i].i_len >> XFS_BLF_SHIFT;
+ if (item->ri_buf[i].iov_len < (nbits << XFS_BLF_SHIFT))
+ nbits = item->ri_buf[i].iov_len >> XFS_BLF_SHIFT;
/*
* Do a sanity check if this is a dquot buffer. Just checking
@@ -494,18 +510,18 @@ xlog_recover_do_reg_buffer(
fa = NULL;
if (buf_f->blf_flags &
(XFS_BLF_UDQUOT_BUF|XFS_BLF_PDQUOT_BUF|XFS_BLF_GDQUOT_BUF)) {
- if (item->ri_buf[i].i_addr == NULL) {
+ if (item->ri_buf[i].iov_base == NULL) {
xfs_alert(mp,
"XFS: NULL dquot in %s.", __func__);
goto next;
}
- if (item->ri_buf[i].i_len < size_disk_dquot) {
+ if (item->ri_buf[i].iov_len < size_disk_dquot) {
xfs_alert(mp,
- "XFS: dquot too small (%d) in %s.",
- item->ri_buf[i].i_len, __func__);
+ "XFS: dquot too small (%zd) in %s.",
+ item->ri_buf[i].iov_len, __func__);
goto next;
}
- fa = xfs_dquot_verify(mp, item->ri_buf[i].i_addr, -1);
+ fa = xfs_dquot_verify(mp, item->ri_buf[i].iov_base, -1);
if (fa) {
xfs_alert(mp,
"dquot corrupt at %pS trying to replay into block 0x%llx",
@@ -516,7 +532,7 @@ xlog_recover_do_reg_buffer(
memcpy(xfs_buf_offset(bp,
(uint)bit << XFS_BLF_SHIFT), /* dest */
- item->ri_buf[i].i_addr, /* source */
+ item->ri_buf[i].iov_base, /* source */
nbits<<XFS_BLF_SHIFT); /* length */
next:
i++;
@@ -527,6 +543,7 @@ xlog_recover_do_reg_buffer(
ASSERT(i == item->ri_total);
xlog_recover_validate_buf_type(mp, bp, buf_f, current_lsn);
+ return 0;
}
/*
@@ -535,10 +552,10 @@ xlog_recover_do_reg_buffer(
* (ie. USR or GRP), then just toss this buffer away; don't recover it.
* Else, treat it as a regular buffer and do recovery.
*
- * Return false if the buffer was tossed and true if we recovered the buffer to
- * indicate to the caller if the buffer needs writing.
+ * Return 0 if the buffer was not recovered (tossed), 1 if it was recovered and
+ * needs writing, or a negative errno if recovery of the buffer failed.
*/
-STATIC bool
+STATIC int
xlog_recover_do_dquot_buffer(
struct xfs_mount *mp,
struct xlog *log,
@@ -547,6 +564,7 @@ xlog_recover_do_dquot_buffer(
struct xfs_buf_log_format *buf_f)
{
uint type;
+ int error;
trace_xfs_log_recover_buf_dquot_buf(log, buf_f);
@@ -554,7 +572,7 @@ xlog_recover_do_dquot_buffer(
* Filesystems are required to send in quota flags at mount time.
*/
if (!mp->m_qflags)
- return false;
+ return 0;
type = 0;
if (buf_f->blf_flags & XFS_BLF_UDQUOT_BUF)
@@ -567,10 +585,12 @@ xlog_recover_do_dquot_buffer(
* This type of quotas was turned off, so ignore this buffer
*/
if (log->l_quotaoffs_flag & type)
- return false;
+ return 0;
- xlog_recover_do_reg_buffer(mp, item, bp, buf_f, NULLCOMMITLSN);
- return true;
+ error = xlog_recover_do_reg_buffer(mp, item, bp, buf_f, NULLCOMMITLSN);
+ if (error)
+ return error;
+ return 1;
}
/*
@@ -652,8 +672,8 @@ xlog_recover_do_inode_buffer(
if (next_unlinked_offset < reg_buf_offset)
continue;
- ASSERT(item->ri_buf[item_index].i_addr != NULL);
- ASSERT((item->ri_buf[item_index].i_len % XFS_BLF_CHUNK) == 0);
+ ASSERT(item->ri_buf[item_index].iov_base != NULL);
+ ASSERT((item->ri_buf[item_index].iov_len % XFS_BLF_CHUNK) == 0);
ASSERT((reg_buf_offset + reg_buf_bytes) <= BBTOB(bp->b_length));
/*
@@ -661,7 +681,7 @@ xlog_recover_do_inode_buffer(
* current di_next_unlinked field. Extract its value
* and copy it to the buffer copy.
*/
- logged_nextp = item->ri_buf[item_index].i_addr +
+ logged_nextp = item->ri_buf[item_index].iov_base +
next_unlinked_offset - reg_buf_offset;
if (XFS_IS_CORRUPT(mp, *logged_nextp == 0)) {
xfs_alert(mp,
@@ -706,7 +726,9 @@ xlog_recover_do_primary_sb_buffer(
xfs_agnumber_t orig_agcount = mp->m_sb.sb_agcount;
int error;
- xlog_recover_do_reg_buffer(mp, item, bp, buf_f, current_lsn);
+ error = xlog_recover_do_reg_buffer(mp, item, bp, buf_f, current_lsn);
+ if (error)
+ return error;
if (orig_agcount == 0) {
xfs_alert(mp, "Trying to grow file system without AGs");
@@ -951,7 +973,7 @@ xlog_recover_buf_commit_pass2(
struct xlog_recover_item *item,
xfs_lsn_t current_lsn)
{
- struct xfs_buf_log_format *buf_f = item->ri_buf[0].i_addr;
+ struct xfs_buf_log_format *buf_f = item->ri_buf[0].iov_base;
struct xfs_mount *mp = log->l_mp;
struct xfs_buf *bp;
int error;
@@ -1026,11 +1048,11 @@ xlog_recover_buf_commit_pass2(
goto out_release;
} else if (buf_f->blf_flags &
(XFS_BLF_UDQUOT_BUF|XFS_BLF_PDQUOT_BUF|XFS_BLF_GDQUOT_BUF)) {
- bool dirty;
-
- dirty = xlog_recover_do_dquot_buffer(mp, log, item, bp, buf_f);
- if (!dirty)
+ error = xlog_recover_do_dquot_buffer(mp, log, item, bp, buf_f);
+ if (error <= 0)
goto out_release;
+ /* write dirty buffer */
+ error = 0;
} else if ((xfs_blft_from_flags(buf_f) & XFS_BLFT_SB_BUF) &&
xfs_buf_daddr(bp) == 0) {
error = xlog_recover_do_primary_sb_buffer(mp, item, bp, buf_f,
@@ -1038,7 +1060,10 @@ xlog_recover_buf_commit_pass2(
if (error)
goto out_writebuf;
} else {
- xlog_recover_do_reg_buffer(mp, item, bp, buf_f, current_lsn);
+ error = xlog_recover_do_reg_buffer(mp, item, bp, buf_f,
+ current_lsn);
+ if (error)
+ goto out_release;
}
/*
diff --git a/fs/xfs/xfs_dquot_item_recover.c b/fs/xfs/xfs_dquot_item_recover.c
index adda4e0dc41c..590412c8e615 100644
--- a/fs/xfs/xfs_dquot_item_recover.c
+++ b/fs/xfs/xfs_dquot_item_recover.c
@@ -34,10 +34,10 @@ xlog_recover_dquot_ra_pass2(
if (mp->m_qflags == 0)
return;
- recddq = item->ri_buf[1].i_addr;
+ recddq = item->ri_buf[1].iov_base;
if (recddq == NULL)
return;
- if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot))
+ if (item->ri_buf[1].iov_len < sizeof(struct xfs_disk_dquot))
return;
type = recddq->d_type & XFS_DQTYPE_REC_MASK;
@@ -45,7 +45,7 @@ xlog_recover_dquot_ra_pass2(
if (log->l_quotaoffs_flag & type)
return;
- dq_f = item->ri_buf[0].i_addr;
+ dq_f = item->ri_buf[0].iov_base;
ASSERT(dq_f);
ASSERT(dq_f->qlf_len == 1);
@@ -79,14 +79,14 @@ xlog_recover_dquot_commit_pass2(
if (mp->m_qflags == 0)
return 0;
- recddq = item->ri_buf[1].i_addr;
+ recddq = item->ri_buf[1].iov_base;
if (recddq == NULL) {
xfs_alert(log->l_mp, "NULL dquot in %s.", __func__);
return -EFSCORRUPTED;
}
- if (item->ri_buf[1].i_len < sizeof(struct xfs_disk_dquot)) {
- xfs_alert(log->l_mp, "dquot too small (%d) in %s.",
- item->ri_buf[1].i_len, __func__);
+ if (item->ri_buf[1].iov_len < sizeof(struct xfs_disk_dquot)) {
+ xfs_alert(log->l_mp, "dquot too small (%zd) in %s.",
+ item->ri_buf[1].iov_len, __func__);
return -EFSCORRUPTED;
}
@@ -108,7 +108,7 @@ xlog_recover_dquot_commit_pass2(
* The other possibility, of course, is that the quota subsystem was
* removed since the last mount - ENOSYS.
*/
- dq_f = item->ri_buf[0].i_addr;
+ dq_f = item->ri_buf[0].iov_base;
ASSERT(dq_f);
fa = xfs_dquot_verify(mp, recddq, dq_f->qlf_id);
if (fa) {
@@ -147,7 +147,7 @@ xlog_recover_dquot_commit_pass2(
}
}
- memcpy(ddq, recddq, item->ri_buf[1].i_len);
+ memcpy(ddq, recddq, item->ri_buf[1].iov_len);
if (xfs_has_crc(mp)) {
xfs_update_cksum((char *)dqb, sizeof(struct xfs_dqblk),
XFS_DQUOT_CRC_OFF);
@@ -192,7 +192,7 @@ xlog_recover_quotaoff_commit_pass1(
struct xlog *log,
struct xlog_recover_item *item)
{
- struct xfs_qoff_logformat *qoff_f = item->ri_buf[0].i_addr;
+ struct xfs_qoff_logformat *qoff_f = item->ri_buf[0].iov_base;
ASSERT(qoff_f);
/*
diff --git a/fs/xfs/xfs_exchmaps_item.c b/fs/xfs/xfs_exchmaps_item.c
index 264a121c5e16..229cbe0adf17 100644
--- a/fs/xfs/xfs_exchmaps_item.c
+++ b/fs/xfs/xfs_exchmaps_item.c
@@ -558,12 +558,12 @@ xlog_recover_xmi_commit_pass2(
size_t len;
len = sizeof(struct xfs_xmi_log_format);
- if (item->ri_buf[0].i_len != len) {
+ if (item->ri_buf[0].iov_len != len) {
XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, log->l_mp);
return -EFSCORRUPTED;
}
- xmi_formatp = item->ri_buf[0].i_addr;
+ xmi_formatp = item->ri_buf[0].iov_base;
if (xmi_formatp->__pad != 0) {
XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, log->l_mp);
return -EFSCORRUPTED;
@@ -598,8 +598,8 @@ xlog_recover_xmd_commit_pass2(
{
struct xfs_xmd_log_format *xmd_formatp;
- xmd_formatp = item->ri_buf[0].i_addr;
- if (item->ri_buf[0].i_len != sizeof(struct xfs_xmd_log_format)) {
+ xmd_formatp = item->ri_buf[0].iov_base;
+ if (item->ri_buf[0].iov_len != sizeof(struct xfs_xmd_log_format)) {
XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, log->l_mp);
return -EFSCORRUPTED;
}
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index abffc74a924f..a5d40f7f7240 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -171,15 +171,18 @@ xfs_efi_init(
* It will handle the conversion of formats if necessary.
*/
STATIC int
-xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
+xfs_efi_copy_format(
+ struct kvec *buf,
+ struct xfs_efi_log_format *dst_efi_fmt)
{
- xfs_efi_log_format_t *src_efi_fmt = buf->i_addr;
- uint i;
- uint len = xfs_efi_log_format_sizeof(src_efi_fmt->efi_nextents);
- uint len32 = xfs_efi_log_format32_sizeof(src_efi_fmt->efi_nextents);
- uint len64 = xfs_efi_log_format64_sizeof(src_efi_fmt->efi_nextents);
+ struct xfs_efi_log_format *src_efi_fmt = buf->iov_base;
+ uint len, len32, len64, i;
- if (buf->i_len == len) {
+ len = xfs_efi_log_format_sizeof(src_efi_fmt->efi_nextents);
+ len32 = xfs_efi_log_format32_sizeof(src_efi_fmt->efi_nextents);
+ len64 = xfs_efi_log_format64_sizeof(src_efi_fmt->efi_nextents);
+
+ if (buf->iov_len == len) {
memcpy(dst_efi_fmt, src_efi_fmt,
offsetof(struct xfs_efi_log_format, efi_extents));
for (i = 0; i < src_efi_fmt->efi_nextents; i++)
@@ -187,8 +190,8 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
&src_efi_fmt->efi_extents[i],
sizeof(struct xfs_extent));
return 0;
- } else if (buf->i_len == len32) {
- xfs_efi_log_format_32_t *src_efi_fmt_32 = buf->i_addr;
+ } else if (buf->iov_len == len32) {
+ xfs_efi_log_format_32_t *src_efi_fmt_32 = buf->iov_base;
dst_efi_fmt->efi_type = src_efi_fmt_32->efi_type;
dst_efi_fmt->efi_size = src_efi_fmt_32->efi_size;
@@ -201,8 +204,8 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
src_efi_fmt_32->efi_extents[i].ext_len;
}
return 0;
- } else if (buf->i_len == len64) {
- xfs_efi_log_format_64_t *src_efi_fmt_64 = buf->i_addr;
+ } else if (buf->iov_len == len64) {
+ xfs_efi_log_format_64_t *src_efi_fmt_64 = buf->iov_base;
dst_efi_fmt->efi_type = src_efi_fmt_64->efi_type;
dst_efi_fmt->efi_size = src_efi_fmt_64->efi_size;
@@ -216,8 +219,8 @@ xfs_efi_copy_format(xfs_log_iovec_t *buf, xfs_efi_log_format_t *dst_efi_fmt)
}
return 0;
}
- XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, NULL, buf->i_addr,
- buf->i_len);
+ XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, NULL, buf->iov_base,
+ buf->iov_len);
return -EFSCORRUPTED;
}
@@ -723,11 +726,11 @@ xlog_recover_efi_commit_pass2(
struct xfs_efi_log_format *efi_formatp;
int error;
- efi_formatp = item->ri_buf[0].i_addr;
+ efi_formatp = item->ri_buf[0].iov_base;
- if (item->ri_buf[0].i_len < xfs_efi_log_format_sizeof(0)) {
+ if (item->ri_buf[0].iov_len < xfs_efi_log_format_sizeof(0)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
@@ -764,9 +767,9 @@ xlog_recover_efd_commit_pass2(
xfs_lsn_t lsn)
{
struct xfs_efd_log_format *efd_formatp;
- int buflen = item->ri_buf[0].i_len;
+ int buflen = item->ri_buf[0].iov_len;
- efd_formatp = item->ri_buf[0].i_addr;
+ efd_formatp = item->ri_buf[0].iov_base;
if (buflen < sizeof(struct xfs_efd_log_format)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp,
@@ -774,9 +777,9 @@ xlog_recover_efd_commit_pass2(
return -EFSCORRUPTED;
}
- if (item->ri_buf[0].i_len != xfs_efd_log_format32_sizeof(
+ if (item->ri_buf[0].iov_len != xfs_efd_log_format32_sizeof(
efd_formatp->efd_nextents) &&
- item->ri_buf[0].i_len != xfs_efd_log_format64_sizeof(
+ item->ri_buf[0].iov_len != xfs_efd_log_format64_sizeof(
efd_formatp->efd_nextents)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp,
efd_formatp, buflen);
diff --git a/fs/xfs/xfs_icreate_item.c b/fs/xfs/xfs_icreate_item.c
index 4345db501714..f83ec2bd0583 100644
--- a/fs/xfs/xfs_icreate_item.c
+++ b/fs/xfs/xfs_icreate_item.c
@@ -158,7 +158,7 @@ xlog_recover_icreate_commit_pass2(
int nbufs;
int i;
- icl = (struct xfs_icreate_log *)item->ri_buf[0].i_addr;
+ icl = (struct xfs_icreate_log *)item->ri_buf[0].iov_base;
if (icl->icl_type != XFS_LI_ICREATE) {
xfs_warn(log->l_mp, "xlog_recover_do_icreate_trans: bad type");
return -EINVAL;
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 5eccc54fbde2..e273a2d527c4 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -1180,12 +1180,12 @@ xfs_iflush_shutdown_abort(
*/
int
xfs_inode_item_format_convert(
- struct xfs_log_iovec *buf,
+ struct kvec *buf,
struct xfs_inode_log_format *in_f)
{
- struct xfs_inode_log_format_32 *in_f32 = buf->i_addr;
+ struct xfs_inode_log_format_32 *in_f32 = buf->iov_base;
- if (buf->i_len != sizeof(*in_f32)) {
+ if (buf->iov_len != sizeof(*in_f32)) {
XFS_ERROR_REPORT(__func__, XFS_ERRLEVEL_LOW, NULL);
return -EFSCORRUPTED;
}
diff --git a/fs/xfs/xfs_inode_item.h b/fs/xfs/xfs_inode_item.h
index 377e06007804..ba92ce11a011 100644
--- a/fs/xfs/xfs_inode_item.h
+++ b/fs/xfs/xfs_inode_item.h
@@ -46,8 +46,8 @@ extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
extern void xfs_inode_item_destroy(struct xfs_inode *);
extern void xfs_iflush_abort(struct xfs_inode *);
extern void xfs_iflush_shutdown_abort(struct xfs_inode *);
-extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
- struct xfs_inode_log_format *);
+int xfs_inode_item_format_convert(struct kvec *buf,
+ struct xfs_inode_log_format *in_f);
extern struct kmem_cache *xfs_ili_cache;
diff --git a/fs/xfs/xfs_inode_item_recover.c b/fs/xfs/xfs_inode_item_recover.c
index dbdab4ce7c44..23b145f3ac31 100644
--- a/fs/xfs/xfs_inode_item_recover.c
+++ b/fs/xfs/xfs_inode_item_recover.c
@@ -28,13 +28,13 @@ xlog_recover_inode_ra_pass2(
struct xlog *log,
struct xlog_recover_item *item)
{
- if (item->ri_buf[0].i_len == sizeof(struct xfs_inode_log_format)) {
- struct xfs_inode_log_format *ilfp = item->ri_buf[0].i_addr;
+ if (item->ri_buf[0].iov_len == sizeof(struct xfs_inode_log_format)) {
+ struct xfs_inode_log_format *ilfp = item->ri_buf[0].iov_base;
xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
&xfs_inode_buf_ra_ops);
} else {
- struct xfs_inode_log_format_32 *ilfp = item->ri_buf[0].i_addr;
+ struct xfs_inode_log_format_32 *ilfp = item->ri_buf[0].iov_base;
xlog_buf_readahead(log, ilfp->ilf_blkno, ilfp->ilf_len,
&xfs_inode_buf_ra_ops);
@@ -288,8 +288,8 @@ xlog_recover_inode_commit_pass2(
int need_free = 0;
xfs_failaddr_t fa;
- if (item->ri_buf[0].i_len == sizeof(struct xfs_inode_log_format)) {
- in_f = item->ri_buf[0].i_addr;
+ if (item->ri_buf[0].iov_len == sizeof(struct xfs_inode_log_format)) {
+ in_f = item->ri_buf[0].iov_base;
} else {
in_f = kmalloc(sizeof(struct xfs_inode_log_format),
GFP_KERNEL | __GFP_NOFAIL);
@@ -328,7 +328,7 @@ xlog_recover_inode_commit_pass2(
error = -EFSCORRUPTED;
goto out_release;
}
- ldip = item->ri_buf[1].i_addr;
+ ldip = item->ri_buf[1].iov_base;
if (XFS_IS_CORRUPT(mp, ldip->di_magic != XFS_DINODE_MAGIC)) {
xfs_alert(mp,
"%s: Bad inode log record, rec ptr "PTR_FMT", ino %lld",
@@ -433,12 +433,12 @@ xlog_recover_inode_commit_pass2(
goto out_release;
}
isize = xfs_log_dinode_size(mp);
- if (unlikely(item->ri_buf[1].i_len > isize)) {
+ if (unlikely(item->ri_buf[1].iov_len > isize)) {
XFS_CORRUPTION_ERROR("Bad log dinode size", XFS_ERRLEVEL_LOW,
mp, ldip, sizeof(*ldip));
xfs_alert(mp,
- "Bad inode 0x%llx log dinode size 0x%x",
- in_f->ilf_ino, item->ri_buf[1].i_len);
+ "Bad inode 0x%llx log dinode size 0x%zx",
+ in_f->ilf_ino, item->ri_buf[1].iov_len);
error = -EFSCORRUPTED;
goto out_release;
}
@@ -461,8 +461,8 @@ xlog_recover_inode_commit_pass2(
if (in_f->ilf_size == 2)
goto out_owner_change;
- len = item->ri_buf[2].i_len;
- src = item->ri_buf[2].i_addr;
+ len = item->ri_buf[2].iov_len;
+ src = item->ri_buf[2].iov_base;
ASSERT(in_f->ilf_size <= 4);
ASSERT((in_f->ilf_size == 3) || (fields & XFS_ILOG_AFORK));
ASSERT(!(fields & XFS_ILOG_DFORK) ||
@@ -499,8 +499,8 @@ xlog_recover_inode_commit_pass2(
} else {
attr_index = 2;
}
- len = item->ri_buf[attr_index].i_len;
- src = item->ri_buf[attr_index].i_addr;
+ len = item->ri_buf[attr_index].iov_len;
+ src = item->ri_buf[attr_index].iov_base;
ASSERT(len == xlog_calc_iovec_len(in_f->ilf_asize));
switch (in_f->ilf_fields & XFS_ILOG_AFORK) {
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 1f9e53e480c5..4884bbf5df80 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2135,15 +2135,15 @@ xlog_recover_add_to_cont_trans(
item = list_entry(trans->r_itemq.prev, struct xlog_recover_item,
ri_list);
- old_ptr = item->ri_buf[item->ri_cnt-1].i_addr;
- old_len = item->ri_buf[item->ri_cnt-1].i_len;
+ old_ptr = item->ri_buf[item->ri_cnt-1].iov_base;
+ old_len = item->ri_buf[item->ri_cnt-1].iov_len;
ptr = kvrealloc(old_ptr, len + old_len, GFP_KERNEL);
if (!ptr)
return -ENOMEM;
memcpy(&ptr[old_len], dp, len);
- item->ri_buf[item->ri_cnt-1].i_len += len;
- item->ri_buf[item->ri_cnt-1].i_addr = ptr;
+ item->ri_buf[item->ri_cnt-1].iov_len += len;
+ item->ri_buf[item->ri_cnt-1].iov_base = ptr;
trace_xfs_log_recover_item_add_cont(log, trans, item, 0);
return 0;
}
@@ -2227,7 +2227,7 @@ xlog_recover_add_to_trans(
}
item->ri_total = in_f->ilf_size;
- item->ri_buf = kzalloc(item->ri_total * sizeof(xfs_log_iovec_t),
+ item->ri_buf = kcalloc(item->ri_total, sizeof(*item->ri_buf),
GFP_KERNEL | __GFP_NOFAIL);
}
@@ -2241,8 +2241,8 @@ xlog_recover_add_to_trans(
}
/* Description region is ri_buf[0] */
- item->ri_buf[item->ri_cnt].i_addr = ptr;
- item->ri_buf[item->ri_cnt].i_len = len;
+ item->ri_buf[item->ri_cnt].iov_base = ptr;
+ item->ri_buf[item->ri_cnt].iov_len = len;
item->ri_cnt++;
trace_xfs_log_recover_item_add(log, trans, item, 0);
return 0;
@@ -2266,7 +2266,7 @@ xlog_recover_free_trans(
/* Free the regions in the item. */
list_del(&item->ri_list);
for (i = 0; i < item->ri_cnt; i++)
- kvfree(item->ri_buf[i].i_addr);
+ kvfree(item->ri_buf[i].iov_base);
/* Free the item itself */
kfree(item->ri_buf);
kfree(item);
diff --git a/fs/xfs/xfs_refcount_item.c b/fs/xfs/xfs_refcount_item.c
index 27398512b179..181499ffdacd 100644
--- a/fs/xfs/xfs_refcount_item.c
+++ b/fs/xfs/xfs_refcount_item.c
@@ -587,18 +587,18 @@ xlog_recover_cui_commit_pass2(
struct xfs_cui_log_format *cui_formatp;
size_t len;
- cui_formatp = item->ri_buf[0].i_addr;
+ cui_formatp = item->ri_buf[0].iov_base;
- if (item->ri_buf[0].i_len < xfs_cui_log_format_sizeof(0)) {
+ if (item->ri_buf[0].iov_len < xfs_cui_log_format_sizeof(0)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
len = xfs_cui_log_format_sizeof(cui_formatp->cui_nextents);
- if (item->ri_buf[0].i_len != len) {
+ if (item->ri_buf[0].iov_len != len) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
@@ -632,10 +632,10 @@ xlog_recover_cud_commit_pass2(
{
struct xfs_cud_log_format *cud_formatp;
- cud_formatp = item->ri_buf[0].i_addr;
- if (item->ri_buf[0].i_len != sizeof(struct xfs_cud_log_format)) {
+ cud_formatp = item->ri_buf[0].iov_base;
+ if (item->ri_buf[0].iov_len != sizeof(struct xfs_cud_log_format)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
diff --git a/fs/xfs/xfs_rmap_item.c b/fs/xfs/xfs_rmap_item.c
index 88b5580e1e19..2134340e23e6 100644
--- a/fs/xfs/xfs_rmap_item.c
+++ b/fs/xfs/xfs_rmap_item.c
@@ -638,18 +638,18 @@ xlog_recover_rui_commit_pass2(
struct xfs_rui_log_format *rui_formatp;
size_t len;
- rui_formatp = item->ri_buf[0].i_addr;
+ rui_formatp = item->ri_buf[0].iov_base;
- if (item->ri_buf[0].i_len < xfs_rui_log_format_sizeof(0)) {
+ if (item->ri_buf[0].iov_len < xfs_rui_log_format_sizeof(0)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
len = xfs_rui_log_format_sizeof(rui_formatp->rui_nextents);
- if (item->ri_buf[0].i_len != len) {
+ if (item->ri_buf[0].iov_len != len) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
- item->ri_buf[0].i_addr, item->ri_buf[0].i_len);
+ item->ri_buf[0].iov_base, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
@@ -683,10 +683,10 @@ xlog_recover_rud_commit_pass2(
{
struct xfs_rud_log_format *rud_formatp;
- rud_formatp = item->ri_buf[0].i_addr;
- if (item->ri_buf[0].i_len != sizeof(struct xfs_rud_log_format)) {
+ rud_formatp = item->ri_buf[0].iov_base;
+ if (item->ri_buf[0].iov_len != sizeof(struct xfs_rud_log_format)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, log->l_mp,
- rud_formatp, item->ri_buf[0].i_len);
+ rud_formatp, item->ri_buf[0].iov_len);
return -EFSCORRUPTED;
}
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index f06cc0f41665..02b1c030cf17 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -15,7 +15,6 @@ struct xfs_efd_log_item;
struct xfs_efi_log_item;
struct xfs_inode;
struct xfs_item_ops;
-struct xfs_log_iovec;
struct xfs_mount;
struct xfs_trans;
struct xfs_trans_res;
diff --git a/include/linux/netfs.h b/include/linux/netfs.h
index 6bd0dbfe8f0c..6f2c504dae82 100644
--- a/include/linux/netfs.h
+++ b/include/linux/netfs.h
@@ -266,7 +266,7 @@ struct netfs_io_request {
atomic64_t issued_to; /* Write issuer folio cursor */
unsigned long long collected_to; /* Point we've collected to */
unsigned long long cleaned_to; /* Position we've cleaned folios to */
- pgoff_t no_unlock_folio; /* Don't unlock this folio after read */
+ const struct folio *no_unlock_folio; /* Don't unlock this folio after read */
size_t prev_donated; /* Fallback for subreq->prev_donated */
refcount_t ref;
unsigned long flags;
diff --git a/include/linux/pci-ecam.h b/include/linux/pci-ecam.h
index 3a4860bd2758..7ebec8ce26dc 100644
--- a/include/linux/pci-ecam.h
+++ b/include/linux/pci-ecam.h
@@ -77,6 +77,9 @@ void __iomem *pci_ecam_map_bus(struct pci_bus *bus, unsigned int devfn,
/* default ECAM ops */
extern const struct pci_ecam_ops pci_generic_ecam_ops;
+/* default CAM ops */
+extern const struct pci_ecam_ops pci_generic_cam_ops;
+
#if defined(CONFIG_ACPI) && defined(CONFIG_PCI_QUIRKS)
extern const struct pci_ecam_ops pci_32b_ops; /* 32-bit accesses only */
extern const struct pci_ecam_ops pci_32b_read_ops; /* 32-bit read only */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f9ffe42cae17..7b97f1ec1bc0 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1490,6 +1490,14 @@ struct task_struct {
/* Collect coverage from softirq context: */
unsigned int kcov_softirq;
+
+ /* Temporary storage for preempting remote coverage collection: */
+ unsigned int kcov_saved_mode;
+ unsigned int kcov_saved_size;
+ void *kcov_saved_area;
+ struct kcov *kcov_saved_kcov;
+ int kcov_saved_sequence;
+
#endif
#ifdef CONFIG_MEMCG_V1
diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index fcabb34fff35..365925c9d262 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -126,16 +126,16 @@ int fqdir_init(struct fqdir **fqdirp, struct inet_frags *f, struct net *net);
void fqdir_pre_exit(struct fqdir *fqdir);
void fqdir_exit(struct fqdir *fqdir);
-void inet_frag_kill(struct inet_frag_queue *q);
+void inet_frag_kill(struct inet_frag_queue *q, int *refs);
void inet_frag_destroy(struct inet_frag_queue *q);
struct inet_frag_queue *inet_frag_find(struct fqdir *fqdir, void *key);
void inet_frag_queue_flush(struct inet_frag_queue *q,
enum skb_drop_reason reason);
-static inline void inet_frag_put(struct inet_frag_queue *q)
+static inline void inet_frag_putn(struct inet_frag_queue *q, int refs)
{
- if (refcount_dec_and_test(&q->refcnt))
+ if (refs && refcount_sub_and_test(refs, &q->refcnt))
inet_frag_destroy(q);
}
diff --git a/include/net/ipv6_frag.h b/include/net/ipv6_frag.h
index df61b98b5215..41d9fc6965f9 100644
--- a/include/net/ipv6_frag.h
+++ b/include/net/ipv6_frag.h
@@ -66,6 +66,7 @@ ip6frag_expire_frag_queue(struct net *net, struct frag_queue *fq)
{
struct net_device *dev = NULL;
struct sk_buff *head;
+ int refs = 1;
rcu_read_lock();
spin_lock(&fq->q.lock);
@@ -74,7 +75,7 @@ ip6frag_expire_frag_queue(struct net *net, struct frag_queue *fq)
goto out;
fq->q.flags |= INET_FRAG_DROP;
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, &refs);
/* Paired with the WRITE_ONCE() in fqdir_pre_exit(). */
if (READ_ONCE(fq->q.fqdir->dead)) {
@@ -112,7 +113,7 @@ ip6frag_expire_frag_queue(struct net *net, struct frag_queue *fq)
spin_unlock(&fq->q.lock);
out_rcu_unlock:
rcu_read_unlock();
- inet_frag_put(&fq->q);
+ inet_frag_putn(&fq->q, refs);
}
/* Check if the upper layer header is truncated in the first fragment. */
diff --git a/kernel/kcov.c b/kernel/kcov.c
index bbfb4689f81c..730807469446 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -86,17 +86,12 @@ struct kcov_remote {
static DEFINE_SPINLOCK(kcov_remote_lock);
static DEFINE_HASHTABLE(kcov_remote_map, 4);
-static struct list_head kcov_remote_areas = LIST_HEAD_INIT(kcov_remote_areas);
+static struct list_head kcov_remote_areas[2] = {
+ LIST_HEAD_INIT(kcov_remote_areas[0]), LIST_HEAD_INIT(kcov_remote_areas[1])
+};
struct kcov_percpu_data {
- void *irq_area;
local_lock_t lock;
-
- unsigned int saved_mode;
- unsigned int saved_size;
- void *saved_area;
- struct kcov *saved_kcov;
- int saved_sequence;
};
static DEFINE_PER_CPU(struct kcov_percpu_data, kcov_percpu_data) = {
@@ -132,12 +127,13 @@ static struct kcov_remote *kcov_remote_add(struct kcov *kcov, u64 handle)
}
/* Must be called with kcov_remote_lock locked. */
-static struct kcov_remote_area *kcov_remote_area_get(unsigned int size)
+static struct kcov_remote_area *kcov_remote_area_get(unsigned int size, bool irq)
{
struct kcov_remote_area *area;
struct list_head *pos;
+ struct list_head *list = &kcov_remote_areas[irq];
- list_for_each(pos, &kcov_remote_areas) {
+ list_for_each(pos, list) {
area = list_entry(pos, struct kcov_remote_area, list);
if (area->size == size) {
list_del(&area->list);
@@ -149,11 +145,11 @@ static struct kcov_remote_area *kcov_remote_area_get(unsigned int size)
/* Must be called with kcov_remote_lock locked. */
static void kcov_remote_area_put(struct kcov_remote_area *area,
- unsigned int size)
+ unsigned int size, bool irq)
{
INIT_LIST_HEAD(&area->list);
area->size = size;
- list_add(&area->list, &kcov_remote_areas);
+ list_add(&area->list, &kcov_remote_areas[irq]);
/*
* KMSAN doesn't instrument this file, so it may not know area->list
* is initialized. Unpoison it explicitly to avoid reports in
@@ -388,6 +384,12 @@ void kcov_task_init(struct task_struct *t)
{
kcov_task_reset(t);
t->kcov_handle = current->kcov_handle;
+ t->kcov_softirq = 0;
+ t->kcov_saved_mode = 0;
+ t->kcov_saved_size = 0;
+ t->kcov_saved_area = NULL;
+ t->kcov_saved_kcov = NULL;
+ t->kcov_saved_sequence = 0;
}
static void kcov_reset(struct kcov *kcov)
@@ -815,34 +817,31 @@ static inline bool kcov_mode_enabled(unsigned int mode)
static void kcov_remote_softirq_start(struct task_struct *t)
{
- struct kcov_percpu_data *data = this_cpu_ptr(&kcov_percpu_data);
unsigned int mode;
mode = READ_ONCE(t->kcov_mode);
barrier();
if (kcov_mode_enabled(mode)) {
- data->saved_mode = mode;
- data->saved_size = t->kcov_size;
- data->saved_area = t->kcov_area;
- data->saved_sequence = t->kcov_sequence;
- data->saved_kcov = t->kcov;
+ t->kcov_saved_mode = mode;
+ t->kcov_saved_size = t->kcov_size;
+ t->kcov_saved_area = t->kcov_area;
+ t->kcov_saved_sequence = t->kcov_sequence;
+ t->kcov_saved_kcov = t->kcov;
kcov_stop(t);
}
}
static void kcov_remote_softirq_stop(struct task_struct *t)
{
- struct kcov_percpu_data *data = this_cpu_ptr(&kcov_percpu_data);
-
- if (data->saved_kcov) {
- kcov_start(t, data->saved_kcov, data->saved_size,
- data->saved_area, data->saved_mode,
- data->saved_sequence);
- data->saved_mode = 0;
- data->saved_size = 0;
- data->saved_area = NULL;
- data->saved_sequence = 0;
- data->saved_kcov = NULL;
+ if (t->kcov_saved_kcov) {
+ kcov_start(t, t->kcov_saved_kcov, t->kcov_saved_size,
+ t->kcov_saved_area, t->kcov_saved_mode,
+ t->kcov_saved_sequence);
+ t->kcov_saved_mode = 0;
+ t->kcov_saved_size = 0;
+ t->kcov_saved_area = NULL;
+ t->kcov_saved_sequence = 0;
+ t->kcov_saved_kcov = NULL;
}
}
@@ -903,17 +902,17 @@ void kcov_remote_start(u64 handle)
sequence = kcov->sequence;
if (in_task()) {
size = kcov->remote_size;
- area = kcov_remote_area_get(size);
+ area = kcov_remote_area_get(size, false);
} else {
size = CONFIG_KCOV_IRQ_AREA_SIZE;
- area = this_cpu_ptr(&kcov_percpu_data)->irq_area;
+ area = kcov_remote_area_get(size, true);
}
spin_unlock(&kcov_remote_lock);
- /* Can only happen when in_task(). */
+ /* Allocate new buffer if we can sleep. */
if (!area) {
local_unlock_irqrestore(&kcov_percpu_data.lock, flags);
- area = vmalloc(size * sizeof(unsigned long));
+ area = in_task() ? vmalloc(size * sizeof(unsigned long)) : NULL;
if (!area) {
kcov_put(kcov);
return;
@@ -1046,11 +1045,9 @@ void kcov_remote_stop(void)
kcov_move_area(kcov->mode, kcov->area, kcov->size, area);
spin_unlock(&kcov->lock);
- if (in_task()) {
- spin_lock(&kcov_remote_lock);
- kcov_remote_area_put(area, size);
- spin_unlock(&kcov_remote_lock);
- }
+ spin_lock(&kcov_remote_lock);
+ kcov_remote_area_put(area, size, !in_task());
+ spin_unlock(&kcov_remote_lock);
local_unlock_irqrestore(&kcov_percpu_data.lock, flags);
@@ -1096,14 +1093,21 @@ static void __init selftest(void)
static int __init kcov_init(void)
{
- int cpu;
+ int cpu = num_possible_cpus();
+
+#ifdef CONFIG_PREEMPT_RT
+ /* Allocate some extra buffers in order to prepare for softirq preemption. */
+ cpu = cpu >= 4 ? cpu * 2 : cpu + 4;
+#endif
+ while (cpu--) {
+ void *area = vmalloc(CONFIG_KCOV_IRQ_AREA_SIZE * sizeof(unsigned long));
+ unsigned long flags;
- for_each_possible_cpu(cpu) {
- void *area = vmalloc_node(CONFIG_KCOV_IRQ_AREA_SIZE *
- sizeof(unsigned long), cpu_to_node(cpu));
if (!area)
return -ENOMEM;
- per_cpu_ptr(&kcov_percpu_data, cpu)->irq_area = area;
+ spin_lock_irqsave(&kcov_remote_lock, flags);
+ kcov_remote_area_put(area, CONFIG_KCOV_IRQ_AREA_SIZE, true);
+ spin_unlock_irqrestore(&kcov_remote_lock, flags);
}
/*
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ffa3da358353..5a6415cfd828 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -2145,10 +2145,11 @@ config KCOV_INSTRUMENT_ALL
config KCOV_IRQ_AREA_SIZE
hex "Size of interrupt coverage collection area in words"
depends on KCOV
+ range 0x80 0x1000000
default 0x40000
help
- KCOV uses preallocated per-cpu areas to collect coverage from
- soft interrupts. This specifies the size of those areas in the
+ KCOV uses preallocated areas to collect coverage from soft
+ interrupts. This specifies the size of those areas in the
number of unsigned long words.
config KCOV_SELFTEST
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 8901ed1b4606..f6bcca6b62ee 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -293,8 +293,10 @@ static u8 hci_cc_reset(struct hci_dev *hdev, void *data, struct sk_buff *skb)
hdev->ssp_debug_mode = 0;
+ hci_dev_lock(hdev);
hci_bdaddr_list_clear(&hdev->le_accept_list);
hci_bdaddr_list_clear(&hdev->le_resolv_list);
+ hci_dev_unlock(hdev);
return rp->status;
}
@@ -3798,8 +3800,10 @@ static u8 hci_cc_le_set_cig_params(struct hci_dev *hdev, void *data,
bt_dev_dbg(hdev, "status 0x%2.2x", rp->status);
cp = hci_sent_cmd_data(hdev, HCI_OP_LE_SET_CIG_PARAMS);
- if (!rp->status && (!cp || rp->num_handles != cp->num_cis ||
- rp->cig_id != cp->cig_id)) {
+ if (!rp->status &&
+ (!cp || rp->num_handles != cp->num_cis ||
+ rp->cig_id != cp->cig_id ||
+ skb->len < array_size(rp->num_handles, sizeof(*rp->handle)))) {
bt_dev_err(hdev, "unexpected Set CIG Parameters response data");
status = HCI_ERROR_UNSPECIFIED;
}
diff --git a/net/bluetooth/iso.c b/net/bluetooth/iso.c
index 7d24544bb301..8ff6d0749719 100644
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -1451,9 +1451,9 @@ static void iso_conn_defer_accept(struct hci_conn *conn)
hci_send_cmd(hdev, HCI_OP_LE_ACCEPT_CIS, sizeof(cp), &cp);
}
-static void iso_conn_big_sync(struct sock *sk)
+static int iso_conn_big_sync(struct sock *sk)
{
- int err;
+ int err = 0;
struct hci_dev *hdev;
struct iso_conn *conn;
bdaddr_t src, dst;
@@ -1468,7 +1468,7 @@ static void iso_conn_big_sync(struct sock *sk)
hdev = hci_get_route(&dst, &src, src_type);
if (!hdev)
- return;
+ return -EHOSTUNREACH;
/* hci_le_big_create_sync requires hdev lock to be held, since
* it enqueues the HCI LE BIG Create Sync command via
@@ -1484,8 +1484,10 @@ static void iso_conn_big_sync(struct sock *sk)
* both before dereferencing conn->hcon.
*/
conn = iso_pi(sk)->conn;
- if (!conn || !conn->hcon)
+ if (!conn || !conn->hcon) {
+ err = -ENOTCONN;
goto unlock;
+ }
if (!test_and_set_bit(BT_SK_BIG_SYNC, &iso_pi(sk)->flags)) {
err = hci_conn_big_create_sync(hdev, conn->hcon,
@@ -1501,6 +1503,8 @@ static void iso_conn_big_sync(struct sock *sk)
release_sock(sk);
hci_dev_unlock(hdev);
hci_dev_put(hdev);
+
+ return err;
}
static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg,
@@ -1521,10 +1525,19 @@ static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg,
case BT_CONNECT2:
if (test_bit(BT_SK_PA_SYNC, &pi->flags)) {
release_sock(sk);
- iso_conn_big_sync(sk);
+ err = iso_conn_big_sync(sk);
lock_sock(sk);
- sk->sk_state = BT_LISTEN;
+ /* The socket lock was dropped, so the
+ * connection may have been torn down
+ * meanwhile and iso_chan_del() may have
+ * already moved the socket to BT_CLOSED.
+ * Only move on to BT_LISTEN if the BIG sync
+ * was actually started and nothing else has
+ * changed the state.
+ */
+ if (!err && sk->sk_state == BT_CONNECT2)
+ sk->sk_state = BT_LISTEN;
} else {
iso_conn_defer_accept(pi->conn->hcon);
sk->sk_state = BT_CONFIG;
@@ -1535,10 +1548,11 @@ static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg,
case BT_CONNECTED:
if (test_bit(BT_SK_PA_SYNC, &iso_pi(sk)->flags)) {
release_sock(sk);
- iso_conn_big_sync(sk);
+ err = iso_conn_big_sync(sk);
lock_sock(sk);
- sk->sk_state = BT_LISTEN;
+ if (!err && sk->sk_state == BT_CONNECTED)
+ sk->sk_state = BT_LISTEN;
early_ret = true;
}
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index ef96e7fec0ec..9b375d704b31 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -1334,7 +1334,10 @@ static struct rfcomm_session *rfcomm_recv_disc(struct rfcomm_session *s,
return s;
}
-void rfcomm_dlc_accept(struct rfcomm_dlc *d)
+/* Must be called with rfcomm_mutex held, so that the session cannot be
+ * unlinked from under us.
+ */
+static void __rfcomm_dlc_accept(struct rfcomm_dlc *d)
{
struct sock *sk = d->session->sock->sk;
struct l2cap_conn *conn = l2cap_pi(sk)->chan->conn;
@@ -1356,6 +1359,21 @@ void rfcomm_dlc_accept(struct rfcomm_dlc *d)
rfcomm_send_msc(d->session, 1, d->dlci, d->v24_sig);
}
+void rfcomm_dlc_accept(struct rfcomm_dlc *d)
+{
+ rfcomm_lock();
+
+ /* rfcomm_recv_disc() sets the dlc state to BT_CLOSED before calling
+ * __rfcomm_dlc_close(), so the RFCOMM_DEFER_SETUP handshake there is
+ * skipped and the session can already be unlinked by the time the
+ * deferred accept runs from rfcomm_sock_recvmsg().
+ */
+ if (d->session)
+ __rfcomm_dlc_accept(d);
+
+ rfcomm_unlock();
+}
+
static void rfcomm_check_accept(struct rfcomm_dlc *d)
{
if (rfcomm_check_security(d)) {
@@ -1368,7 +1386,7 @@ static void rfcomm_check_accept(struct rfcomm_dlc *d)
d->state_change(d, 0);
rfcomm_dlc_unlock(d);
} else
- rfcomm_dlc_accept(d);
+ __rfcomm_dlc_accept(d);
} else {
set_bit(RFCOMM_AUTH_PENDING, &d->flags);
rfcomm_dlc_set_timer(d, RFCOMM_AUTH_TIMEOUT);
@@ -1953,7 +1971,7 @@ static void rfcomm_process_dlcs(struct rfcomm_session *s)
d->state_change(d, 0);
rfcomm_dlc_unlock(d);
} else
- rfcomm_dlc_accept(d);
+ __rfcomm_dlc_accept(d);
}
continue;
} else if (test_and_clear_bit(RFCOMM_AUTH_REJECT, &d->flags)) {
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index 2f1c461e0ffc..1357793ae38f 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -5090,7 +5090,7 @@ static int decode_watchers(void **p, void *end,
if (ret)
return ret;
- *num_watchers = ceph_decode_32(p);
+ ceph_decode_32_safe(p, end, *num_watchers, bad);
*watchers = kcalloc(*num_watchers, sizeof(**watchers), GFP_NOIO);
if (!*watchers)
return -ENOMEM;
@@ -5104,6 +5104,9 @@ static int decode_watchers(void **p, void *end,
}
return 0;
+
+bad:
+ return -EINVAL;
}
/*
diff --git a/net/core/gro.c b/net/core/gro.c
index 1a239b44916e..9ee75881b20c 100644
--- a/net/core/gro.c
+++ b/net/core/gro.c
@@ -117,9 +117,12 @@ int skb_gro_receive(struct sk_buff *p, struct sk_buff *skb)
if (unlikely(p->len + len >= GRO_LEGACY_MAX_SIZE)) {
if (NAPI_GRO_CB(skb)->proto != IPPROTO_TCP ||
+ NAPI_GRO_CB(skb)->encap_mark ||
+ p->encapsulation ||
(p->protocol == htons(ETH_P_IPV6) &&
- skb_headroom(p) < sizeof(struct hop_jumbo_hdr)) ||
- p->encapsulation)
+ p->mac_header < sizeof(struct hop_jumbo_hdr)) ||
+ (p->protocol != htons(ETH_P_IPV6) &&
+ p->protocol != htons(ETH_P_IP)))
return -E2BIG;
}
diff --git a/net/ieee802154/6lowpan/reassembly.c b/net/ieee802154/6lowpan/reassembly.c
index 867d637d86f0..d4b983d17038 100644
--- a/net/ieee802154/6lowpan/reassembly.c
+++ b/net/ieee802154/6lowpan/reassembly.c
@@ -31,7 +31,8 @@ static const char lowpan_frags_cache_name[] = "lowpan-frags";
static struct inet_frags lowpan_frags;
static int lowpan_frag_reasm(struct lowpan_frag_queue *fq, struct sk_buff *skb,
- struct sk_buff *prev, struct net_device *ldev);
+ struct sk_buff *prev, struct net_device *ldev,
+ int *refs);
static void lowpan_frag_init(struct inet_frag_queue *q, const void *a)
{
@@ -45,6 +46,7 @@ static void lowpan_frag_expire(struct timer_list *t)
{
struct inet_frag_queue *frag = from_timer(frag, t, timer);
struct frag_queue *fq;
+ int refs = 1;
fq = container_of(frag, struct frag_queue, q);
@@ -53,10 +55,10 @@ static void lowpan_frag_expire(struct timer_list *t)
if (fq->q.flags & INET_FRAG_COMPLETE)
goto out;
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, &refs);
out:
spin_unlock(&fq->q.lock);
- inet_frag_put(&fq->q);
+ inet_frag_putn(&fq->q, refs);
}
static inline struct lowpan_frag_queue *
@@ -82,7 +84,8 @@ fq_find(struct net *net, const struct lowpan_802154_cb *cb,
}
static int lowpan_frag_queue(struct lowpan_frag_queue *fq,
- struct sk_buff *skb, u8 frag_type)
+ struct sk_buff *skb, u8 frag_type,
+ int *refs)
{
struct sk_buff *prev_tail;
struct net_device *ldev;
@@ -143,7 +146,7 @@ static int lowpan_frag_queue(struct lowpan_frag_queue *fq,
unsigned long orefdst = skb->_skb_refdst;
skb->_skb_refdst = 0UL;
- res = lowpan_frag_reasm(fq, skb, prev_tail, ldev);
+ res = lowpan_frag_reasm(fq, skb, prev_tail, ldev, refs);
skb->_skb_refdst = orefdst;
return res;
}
@@ -162,11 +165,12 @@ static int lowpan_frag_queue(struct lowpan_frag_queue *fq,
* the last and the first frames arrived and all the bits are here.
*/
static int lowpan_frag_reasm(struct lowpan_frag_queue *fq, struct sk_buff *skb,
- struct sk_buff *prev_tail, struct net_device *ldev)
+ struct sk_buff *prev_tail, struct net_device *ldev,
+ int *refs)
{
void *reasm_data;
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, refs);
reasm_data = inet_frag_reasm_prepare(&fq->q, skb, prev_tail);
if (!reasm_data)
@@ -300,17 +304,20 @@ int lowpan_frag_rcv(struct sk_buff *skb, u8 frag_type)
goto err;
}
+ rcu_read_lock();
fq = fq_find(net, cb, &hdr.source, &hdr.dest);
if (fq != NULL) {
- int ret;
+ int ret, refs = 0;
spin_lock(&fq->q.lock);
- ret = lowpan_frag_queue(fq, skb, frag_type);
+ ret = lowpan_frag_queue(fq, skb, frag_type, &refs);
spin_unlock(&fq->q.lock);
- inet_frag_put(&fq->q);
+ rcu_read_unlock();
+ inet_frag_putn(&fq->q, refs);
return ret;
}
+ rcu_read_unlock();
err:
kfree_skb(skb);
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index c7af8b914e13..1fc967a60bb9 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -320,17 +320,17 @@ static bool icmpv4_xrlim_allow(struct net *net, struct rtable *rt,
return true;
/* No rate limit on loopback */
- dev = dst_dev(dst);
+ rcu_read_lock();
+ dev = dst_dev_rcu(dst);
if (dev && (dev->flags & IFF_LOOPBACK))
goto out;
- rcu_read_lock();
peer = inet_getpeer_v4(net->ipv4.peers, fl4->daddr,
l3mdev_master_ifindex_rcu(dev));
rc = inet_peer_xrlim_allow(peer,
READ_ONCE(net->ipv4.sysctl_icmp_ratelimit));
- rcu_read_unlock();
out:
+ rcu_read_unlock();
if (!rc)
__ICMP_INC_STATS(net, ICMP_MIB_RATELIMITHOST);
else
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 21a002750e16..ea3f15f59c72 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -145,8 +145,7 @@ static void inet_frags_free_cb(void *ptr, void *arg)
}
spin_unlock_bh(&fq->lock);
- if (refcount_sub_and_test(count, &fq->refcnt))
- inet_frag_destroy(fq);
+ inet_frag_putn(fq, count);
}
static LLIST_HEAD(fqdir_free_list);
@@ -261,10 +260,10 @@ void fqdir_exit(struct fqdir *fqdir)
}
EXPORT_SYMBOL(fqdir_exit);
-void inet_frag_kill(struct inet_frag_queue *fq)
+void inet_frag_kill(struct inet_frag_queue *fq, int *refs)
{
if (del_timer(&fq->timer))
- refcount_dec(&fq->refcnt);
+ (*refs)++;
if (!(fq->flags & INET_FRAG_COMPLETE)) {
struct fqdir *fqdir = fq->fqdir;
@@ -279,7 +278,7 @@ void inet_frag_kill(struct inet_frag_queue *fq)
if (!READ_ONCE(fqdir->dead)) {
rhashtable_remove_fast(&fqdir->rhashtable, &fq->node,
fqdir->f->rhash_params);
- refcount_dec(&fq->refcnt);
+ (*refs)++;
} else {
fq->flags |= INET_FRAG_HASH_DEAD;
}
@@ -376,7 +375,8 @@ static struct inet_frag_queue *inet_frag_alloc(struct fqdir *fqdir,
timer_setup(&q->timer, f->frag_expire, 0);
spin_lock_init(&q->lock);
- refcount_set(&q->refcnt, 3);
+ /* One reference for the timer, one for the hash table. */
+ refcount_set(&q->refcnt, 2);
return q;
}
@@ -393,20 +393,25 @@ static struct inet_frag_queue *inet_frag_create(struct fqdir *fqdir,
*prev = ERR_PTR(-ENOMEM);
return NULL;
}
- mod_timer(&q->timer, jiffies + fqdir->timeout);
+ spin_lock_bh(&q->lock);
*prev = rhashtable_lookup_get_insert_key(&fqdir->rhashtable, &q->key,
&q->node, f->rhash_params);
if (*prev) {
+ /* We could not insert in the hash table,
+ * we need to cancel what inet_frag_alloc()
+ * anticipated.
+ */
q->flags |= INET_FRAG_COMPLETE;
- inet_frag_kill(q);
- inet_frag_destroy(q);
+ spin_unlock_bh(&q->lock);
+ inet_frag_putn(q, 2);
return NULL;
}
+ mod_timer(&q->timer, jiffies + fqdir->timeout);
+ spin_unlock_bh(&q->lock);
return q;
}
-/* TODO : call from rcu_read_lock() and no longer use refcount_inc_not_zero() */
struct inet_frag_queue *inet_frag_find(struct fqdir *fqdir, void *key)
{
/* This pairs with WRITE_ONCE() in fqdir_pre_exit(). */
@@ -416,17 +421,11 @@ struct inet_frag_queue *inet_frag_find(struct fqdir *fqdir, void *key)
if (!high_thresh || frag_mem_limit(fqdir) > high_thresh)
return NULL;
- rcu_read_lock();
-
prev = rhashtable_lookup(&fqdir->rhashtable, key, fqdir->f->rhash_params);
if (!prev)
fq = inet_frag_create(fqdir, key, &prev);
- if (!IS_ERR_OR_NULL(prev)) {
+ if (!IS_ERR_OR_NULL(prev))
fq = prev;
- if (!refcount_inc_not_zero(&fq->refcnt))
- fq = NULL;
- }
- rcu_read_unlock();
return fq;
}
EXPORT_SYMBOL(inet_frag_find);
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index d3abc84a6c02..9cc55a0c64f7 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -76,7 +76,8 @@ static u8 ip4_frag_ecn(u8 tos)
static struct inet_frags ip4_frags;
static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb,
- struct sk_buff *prev_tail, struct net_device *dev);
+ struct sk_buff *prev_tail, struct net_device *dev,
+ int *refs);
static void ip4_frag_init(struct inet_frag_queue *q, const void *a)
@@ -107,22 +108,6 @@ static void ip4_frag_free(struct inet_frag_queue *q)
inet_putpeer(qp->peer);
}
-
-/* Destruction primitives. */
-
-static void ipq_put(struct ipq *ipq)
-{
- inet_frag_put(&ipq->q);
-}
-
-/* Kill ipq entry. It is not destroyed immediately,
- * because caller (and someone more) holds reference count.
- */
-static void ipq_kill(struct ipq *ipq)
-{
- inet_frag_kill(&ipq->q);
-}
-
static bool frag_expire_skip_icmp(u32 user)
{
return user == IP_DEFRAG_AF_PACKET ||
@@ -142,6 +127,7 @@ static void ip_expire(struct timer_list *t)
struct sk_buff *head = NULL;
struct net *net;
struct ipq *qp;
+ int refs = 1;
int err;
qp = container_of(frag, struct ipq, q);
@@ -154,7 +140,7 @@ static void ip_expire(struct timer_list *t)
goto out;
qp->q.flags |= INET_FRAG_DROP;
- ipq_kill(qp);
+ inet_frag_kill(&qp->q, &refs);
/* Paired with WRITE_ONCE() in fqdir_pre_exit(). */
if (READ_ONCE(qp->q.fqdir->dead)) {
@@ -203,7 +189,7 @@ static void ip_expire(struct timer_list *t)
out_rcu_unlock:
rcu_read_unlock();
kfree_skb_reason(head, SKB_DROP_REASON_FRAG_REASM_TIMEOUT);
- ipq_put(qp);
+ inet_frag_putn(&qp->q, refs);
}
/* Find the correct entry in the "incomplete datagrams" queue for
@@ -272,7 +258,7 @@ static int ip_frag_reinit(struct ipq *qp)
}
/* Add new segment to existing queue. */
-static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
+static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb, int *refs)
{
struct net *net = qp->q.fqdir->net;
int ihl, end, flags, offset;
@@ -292,7 +278,7 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
if (!(IPCB(skb)->flags & IPSKB_FRAG_COMPLETE) &&
unlikely(ip_frag_too_far(qp)) &&
unlikely(err = ip_frag_reinit(qp))) {
- ipq_kill(qp);
+ inet_frag_kill(&qp->q, refs);
goto err;
}
@@ -376,10 +362,10 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
unsigned long orefdst = skb->_skb_refdst;
skb->_skb_refdst = 0UL;
- err = ip_frag_reasm(qp, skb, prev_tail, dev);
+ err = ip_frag_reasm(qp, skb, prev_tail, dev, refs);
skb->_skb_refdst = orefdst;
if (err)
- inet_frag_kill(&qp->q);
+ inet_frag_kill(&qp->q, refs);
return err;
}
@@ -396,7 +382,7 @@ static int ip_frag_queue(struct ipq *qp, struct sk_buff *skb)
err = -EINVAL;
__IP_INC_STATS(net, IPSTATS_MIB_REASM_OVERLAPS);
discard_qp:
- inet_frag_kill(&qp->q);
+ inet_frag_kill(&qp->q, refs);
__IP_INC_STATS(net, IPSTATS_MIB_REASMFAILS);
err:
kfree_skb_reason(skb, reason);
@@ -410,7 +396,8 @@ static bool ip_frag_coalesce_ok(const struct ipq *qp)
/* Build a new IP datagram from all its fragments. */
static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb,
- struct sk_buff *prev_tail, struct net_device *dev)
+ struct sk_buff *prev_tail, struct net_device *dev,
+ int *refs)
{
struct net *net = qp->q.fqdir->net;
struct iphdr *iph;
@@ -418,7 +405,7 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb,
int len, err;
u8 ecn;
- ipq_kill(qp);
+ inet_frag_kill(&qp->q, refs);
ecn = ip_frag_ecn_table[qp->ecn];
if (unlikely(ecn == 0xff)) {
@@ -483,25 +470,30 @@ static int ip_frag_reasm(struct ipq *qp, struct sk_buff *skb,
/* Process an incoming IP datagram fragment. */
int ip_defrag(struct net *net, struct sk_buff *skb, u32 user)
{
- struct net_device *dev = skb->dev ? : skb_dst_dev(skb);
- int vif = l3mdev_master_ifindex_rcu(dev);
+ struct net_device *dev;
struct ipq *qp;
+ int vif;
__IP_INC_STATS(net, IPSTATS_MIB_REASMREQDS);
/* Lookup (or create) queue header */
+ rcu_read_lock();
+ dev = skb->dev ? : skb_dst_dev_rcu(skb);
+ vif = l3mdev_master_ifindex_rcu(dev);
qp = ip_find(net, ip_hdr(skb), user, vif);
if (qp) {
- int ret;
+ int ret, refs = 0;
spin_lock(&qp->q.lock);
- ret = ip_frag_queue(qp, skb);
+ ret = ip_frag_queue(qp, skb, &refs);
spin_unlock(&qp->q.lock);
- ipq_put(qp);
+ rcu_read_unlock();
+ inet_frag_putn(&qp->q, refs);
return ret;
}
+ rcu_read_unlock();
__IP_INC_STATS(net, IPSTATS_MIB_REASMFAILS);
kfree_skb(skb);
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 41031c5c4303..e04965d6b54e 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -798,6 +798,10 @@ int ip_do_fragment(struct net *net, struct sock *sk, struct sk_buff *skb,
*/
hlen = iph->ihl * 4;
+ if (mtu < hlen + 8) {
+ err = -EMSGSIZE;
+ goto fail;
+ }
mtu = mtu - hlen; /* Size of data space */
IPCB(skb)->flags |= IPSKB_FRAG_COMPLETE;
ll_rs = LL_RESERVED_SPACE(rt->dst.dev);
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index de0d9cc7806a..f0294b114824 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -1894,7 +1894,7 @@ static void ipmr_queue_xmit(struct net *net, struct mr_table *mrt,
goto out_free;
}
- dev = rt->dst.dev;
+ dev = dst_dev_rcu(&rt->dst);
if (skb->len+encap > dst_mtu(&rt->dst) && (ntohs(iph->frag_off) & IP_DF)) {
/* Do not fragment multicasts. Alas, IPv4 does not
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 28d83b3baae3..9135a9dc8f29 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -413,11 +413,11 @@ static struct neighbour *ipv4_neigh_lookup(const struct dst_entry *dst,
const void *daddr)
{
const struct rtable *rt = container_of(dst, struct rtable, dst);
- struct net_device *dev = dst_dev(dst);
+ struct net_device *dev;
struct neighbour *n;
rcu_read_lock();
-
+ dev = dst_dev_rcu(dst);
if (likely(rt->rt_gw_family == AF_INET)) {
n = ip_neigh_gw4(dev, rt->rt_gw4);
} else if (rt->rt_gw_family == AF_INET6) {
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 5d17982cb994..fd25d5aadea2 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -119,6 +119,8 @@ static int ip6_finish_output2(struct net *net, struct sock *sk, struct sk_buff *
if (res != LWTUNNEL_XMIT_CONTINUE)
return res;
+ hdr = ipv6_hdr(skb);
+ daddr = &hdr->daddr;
}
IP6_UPD_PO_STATS(net, idev, IPSTATS_MIB_OUT, skb->len);
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 1a759519a90f..87bed84a0053 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1683,7 +1683,7 @@ static void ndisc_fill_redirect_hdr_option(struct sk_buff *skb,
void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
{
struct net_device *dev = skb->dev;
- struct net *net = dev_net(dev);
+ struct net *net = dev_net_rcu(dev);
struct sock *sk = net->ipv6.ndisc_sk;
int optlen = 0;
struct inet_peer *peer;
@@ -1698,8 +1698,8 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
ops_data_buf[NDISC_OPS_REDIRECT_DATA_SPACE], *ops_data = NULL;
bool ret;
- if (netif_is_l3_master(skb->dev)) {
- dev = dev_get_by_index_rcu(dev_net(skb->dev), IPCB(skb)->iif);
+ if (netif_is_l3_master(dev)) {
+ dev = dev_get_by_index_rcu(net, IPCB(skb)->iif);
if (!dev)
return;
}
@@ -1737,12 +1737,10 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target)
goto release;
}
- rcu_read_lock();
peer = inet_getpeer_v6(net->ipv6.peers, &ipv6_hdr(skb)->saddr);
if (!peer)
goto release;
ret = inet_peer_xrlim_allow(peer, 1*HZ);
- rcu_read_unlock();
if (!ret)
goto release;
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index fbcc8af7435c..60e8927329dd 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -123,7 +123,8 @@ static void __net_exit nf_ct_frags6_sysctl_unregister(struct net *net)
#endif
static int nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *skb,
- struct sk_buff *prev_tail, struct net_device *dev);
+ struct sk_buff *prev_tail, struct net_device *dev,
+ int *refs);
static inline u8 ip6_frag_ecn(const struct ipv6hdr *ipv6h)
{
@@ -167,7 +168,8 @@ static struct frag_queue *fq_find(struct net *net, __be32 id, u32 user,
static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb,
- const struct frag_hdr *fhdr, int nhoff)
+ const struct frag_hdr *fhdr, int nhoff,
+ int *refs)
{
unsigned int payload_len;
struct net_device *dev;
@@ -221,7 +223,7 @@ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb,
* this case. -DaveM
*/
pr_debug("end of fragment not rounded to 8 bytes.\n");
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, refs);
return -EPROTO;
}
if (end > fq->q.len) {
@@ -287,7 +289,7 @@ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb,
unsigned long orefdst = skb->_skb_refdst;
skb->_skb_refdst = 0UL;
- err = nf_ct_frag6_reasm(fq, skb, prev, dev);
+ err = nf_ct_frag6_reasm(fq, skb, prev, dev, refs);
skb->_skb_refdst = orefdst;
/* After queue has assumed skb ownership, only 0 or
@@ -301,7 +303,7 @@ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb,
return -EINPROGRESS;
insert_error:
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, refs);
err:
skb_dst_drop(skb);
return -EINVAL;
@@ -315,13 +317,14 @@ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb,
* the last and the first frames arrived and all the bits are here.
*/
static int nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *skb,
- struct sk_buff *prev_tail, struct net_device *dev)
+ struct sk_buff *prev_tail, struct net_device *dev,
+ int *refs)
{
void *reasm_data;
int payload_len;
u8 ecn;
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, refs);
ecn = ip_frag_ecn_table[fq->ecn];
if (unlikely(ecn == 0xff))
@@ -373,7 +376,7 @@ static int nf_ct_frag6_reasm(struct frag_queue *fq, struct sk_buff *skb,
return 0;
err:
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, refs);
return -EINVAL;
}
@@ -448,6 +451,7 @@ int nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user)
struct frag_hdr *fhdr;
struct frag_queue *fq;
struct ipv6hdr *hdr;
+ int refs = 0;
u8 prevhdr;
/* Jumbo payload inhibits frag. header */
@@ -474,23 +478,26 @@ int nf_ct_frag6_gather(struct net *net, struct sk_buff *skb, u32 user)
hdr = ipv6_hdr(skb);
fhdr = (struct frag_hdr *)skb_transport_header(skb);
+ rcu_read_lock();
fq = fq_find(net, fhdr->identification, user, hdr,
skb->dev ? skb->dev->ifindex : 0);
if (fq == NULL) {
+ rcu_read_unlock();
pr_debug("Can't find and can't create new queue\n");
return -ENOMEM;
}
spin_lock_bh(&fq->q.lock);
- ret = nf_ct_frag6_queue(fq, skb, fhdr, nhoff);
+ ret = nf_ct_frag6_queue(fq, skb, fhdr, nhoff, &refs);
if (ret == -EPROTO) {
skb->transport_header = savethdr;
ret = 0;
}
spin_unlock_bh(&fq->q.lock);
- inet_frag_put(&fq->q);
+ rcu_read_unlock();
+ inet_frag_putn(&fq->q, refs);
return ret;
}
EXPORT_SYMBOL_GPL(nf_ct_frag6_gather);
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index a48be617a8ab..49740898bc13 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -68,7 +68,8 @@ static u8 ip6_frag_ecn(const struct ipv6hdr *ipv6h)
static struct inet_frags ip6_frags;
static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *skb,
- struct sk_buff *prev_tail, struct net_device *dev);
+ struct sk_buff *prev_tail, struct net_device *dev,
+ int *refs);
static void ip6_frag_expire(struct timer_list *t)
{
@@ -105,7 +106,7 @@ fq_find(struct net *net, __be32 id, const struct ipv6hdr *hdr, int iif)
static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
struct frag_hdr *fhdr, int nhoff,
- u32 *prob_offset)
+ u32 *prob_offset, int *refs)
{
struct net *net = dev_net(skb_dst(skb)->dev);
int offset, end, fragsize;
@@ -220,7 +221,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
unsigned long orefdst = skb->_skb_refdst;
skb->_skb_refdst = 0UL;
- err = ip6_frag_reasm(fq, skb, prev_tail, dev);
+ err = ip6_frag_reasm(fq, skb, prev_tail, dev, refs);
skb->_skb_refdst = orefdst;
return err;
}
@@ -238,7 +239,7 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
__IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_REASM_OVERLAPS);
discard_fq:
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, refs);
__IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)),
IPSTATS_MIB_REASMFAILS);
err:
@@ -254,7 +255,8 @@ static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
* the last and the first frames arrived and all the bits are here.
*/
static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *skb,
- struct sk_buff *prev_tail, struct net_device *dev)
+ struct sk_buff *prev_tail, struct net_device *dev,
+ int *refs)
{
struct net *net = fq->q.fqdir->net;
unsigned int nhoff;
@@ -262,7 +264,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *skb,
int payload_len;
u8 ecn;
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, refs);
ecn = ip_frag_ecn_table[fq->ecn];
if (unlikely(ecn == 0xff))
@@ -303,9 +305,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *skb,
skb_postpush_rcsum(skb, skb_network_header(skb),
skb_network_header_len(skb));
- rcu_read_lock();
__IP6_INC_STATS(net, __in6_dev_stats_get(dev, skb), IPSTATS_MIB_REASMOKS);
- rcu_read_unlock();
fq->q.rb_fragments = RB_ROOT;
fq->q.fragments_tail = NULL;
fq->q.last_run_head = NULL;
@@ -317,10 +317,8 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *skb,
out_oom:
net_dbg_ratelimited("ip6_frag_reasm: no memory for reassembly\n");
out_fail:
- rcu_read_lock();
__IP6_INC_STATS(net, __in6_dev_stats_get(dev, skb), IPSTATS_MIB_REASMFAILS);
- rcu_read_unlock();
- inet_frag_kill(&fq->q);
+ inet_frag_kill(&fq->q, refs);
return -1;
}
@@ -377,19 +375,21 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
}
iif = skb->dev ? skb->dev->ifindex : 0;
+ rcu_read_lock();
fq = fq_find(net, fhdr->identification, hdr, iif);
if (fq) {
u32 prob_offset = 0;
- int ret;
+ int ret, refs = 0;
spin_lock(&fq->q.lock);
fq->iif = iif;
ret = ip6_frag_queue(fq, skb, fhdr, IP6CB(skb)->nhoff,
- &prob_offset);
+ &prob_offset, &refs);
spin_unlock(&fq->q.lock);
- inet_frag_put(&fq->q);
+ rcu_read_unlock();
+ inet_frag_putn(&fq->q, refs);
if (prob_offset) {
__IP6_INC_STATS(net, __in6_dev_get_safely(skb->dev),
IPSTATS_MIB_INHDRERRORS);
@@ -398,6 +398,7 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
}
return ret;
}
+ rcu_read_unlock();
__IP6_INC_STATS(net, ip6_dst_idev(skb_dst(skb)), IPSTATS_MIB_REASMFAILS);
kfree_skb(skb);
diff --git a/net/mptcp/pm_netlink.c b/net/mptcp/pm_netlink.c
index 550c4c1b963d..7ea8ccd16df2 100644
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -296,6 +296,7 @@ static void mptcp_pm_add_timer(struct timer_list *timer)
struct mptcp_sock *msk = entry->sock;
struct sock *sk = (struct sock *)msk;
unsigned int timeout = 0;
+ bool retransmit;
pr_debug("msk=%p\n", msk);
@@ -333,12 +334,13 @@ static void mptcp_pm_add_timer(struct timer_list *timer)
entry->retrans_times++;
}
- if (entry->retrans_times >= ADD_ADDR_RETRANS_MAX)
+ retransmit = entry->retrans_times < ADD_ADDR_RETRANS_MAX;
+ if (!retransmit)
timeout = 0;
spin_unlock_bh(&msk->pm.lock);
- if (entry->retrans_times == ADD_ADDR_RETRANS_MAX)
+ if (!retransmit)
mptcp_pm_subflow_established(msk);
out:
@@ -395,6 +397,9 @@ bool mptcp_pm_alloc_anno_list(struct mptcp_sock *msk,
lockdep_assert_held(&msk->pm.lock);
+ if (msk->pm.status & BIT(MPTCP_PM_DESTROYING))
+ return false;
+
add_entry = mptcp_lookup_anno_list_by_saddr(msk, addr);
if (add_entry) {
diff --git a/net/mptcp/pm_userspace.c b/net/mptcp/pm_userspace.c
index 2a219e47392c..33494c4a8fb2 100644
--- a/net/mptcp/pm_userspace.c
+++ b/net/mptcp/pm_userspace.c
@@ -14,9 +14,6 @@ void mptcp_free_local_addr_list(struct mptcp_sock *msk)
struct sock *sk = (struct sock *)msk;
LIST_HEAD(free_list);
- if (!mptcp_pm_is_userspace(msk))
- return;
-
spin_lock_bh(&msk->pm.lock);
list_splice_init(&msk->pm.userspace_pm_local_addr_list, &free_list);
spin_unlock_bh(&msk->pm.lock);
@@ -54,6 +51,10 @@ static int mptcp_userspace_pm_append_new_local_addr(struct mptcp_sock *msk,
bitmap_zero(id_bitmap, MPTCP_PM_MAX_ADDR_ID + 1);
spin_lock_bh(&msk->pm.lock);
+ if (msk->pm.status & BIT(MPTCP_PM_DESTROYING)) {
+ ret = -EINVAL;
+ goto append_err;
+ }
list_for_each_entry(e, &msk->pm.userspace_pm_local_addr_list, list) {
addr_match = mptcp_addresses_equal(&e->addr, &entry->addr, true);
if (addr_match && entry->addr.id == 0 && needs_id)
diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 967c3ef7aa2f..8b61fe656ec6 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -3578,7 +3578,16 @@ void mptcp_destroy_common(struct mptcp_sock *msk)
sk_forward_alloc_add(sk, msk->rmem_fwd_alloc);
WRITE_ONCE(msk->rmem_fwd_alloc, 0);
mptcp_token_destroy(msk);
+
+ spin_lock_bh(&msk->pm.lock);
+ msk->pm.status |= BIT(MPTCP_PM_DESTROYING);
+ spin_unlock_bh(&msk->pm.lock);
+
mptcp_pm_free_anno_list(msk);
+
+ /* Free the userspace local address list unconditionally: the socket
+ * can be reused (mptcp_disconnect()) and re-selected to a different PM
+ */
mptcp_free_local_addr_list(msk);
}
diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h
index e4540431b49c..36f3f5b34a5d 100644
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -190,9 +190,10 @@ enum mptcp_pm_status {
MPTCP_PM_ESTABLISHED,
MPTCP_PM_SUBFLOW_ESTABLISHED,
MPTCP_PM_ALREADY_ESTABLISHED, /* persistent status, set after ESTABLISHED event */
- MPTCP_PM_MPC_ENDPOINT_ACCOUNTED /* persistent status, set after MPC local address is
- * accounted int id_avail_bitmap
- */
+ MPTCP_PM_MPC_ENDPOINT_ACCOUNTED, /* persistent status, set after MPC local address is
+ * accounted int id_avail_bitmap
+ */
+ MPTCP_PM_DESTROYING, /* To fence out PM list allocs */
};
enum mptcp_pm_type {
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index e29dd10f280e..3c2d225d694a 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -778,6 +778,8 @@ static void digital_in_recv_sensf_res(struct nfc_digital_dev *ddev, void *arg,
sensf_res = (struct digital_sensf_res *)resp->data;
+ resp->len = min_t(unsigned int, resp->len, NFC_SENSF_RES_MAXSIZE);
+
memcpy(target.sensf_res, sensf_res, resp->len);
target.sensf_res_len = resp->len;
diff --git a/net/nfc/llcp_commands.c b/net/nfc/llcp_commands.c
index b652323bc2c1..a93bf0b43d50 100644
--- a/net/nfc/llcp_commands.c
+++ b/net/nfc/llcp_commands.c
@@ -193,7 +193,8 @@ int nfc_llcp_parse_gb_tlv(struct nfc_llcp_local *local,
const u8 *tlv_array, u16 tlv_array_len)
{
const u8 *tlv = tlv_array;
- u8 type, length, offset = 0;
+ u8 type, length;
+ u16 offset = 0;
pr_debug("TLV array length %d\n", tlv_array_len);
@@ -201,9 +202,15 @@ int nfc_llcp_parse_gb_tlv(struct nfc_llcp_local *local,
return -ENODEV;
while (offset < tlv_array_len) {
+ if (offset + 2 > tlv_array_len)
+ return -EINVAL;
+
type = tlv[0];
length = tlv[1];
+ if (offset + 2 + length > tlv_array_len)
+ return -EINVAL;
+
pr_debug("type 0x%x length %d\n", type, length);
switch (type) {
@@ -243,7 +250,8 @@ int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock *sock,
const u8 *tlv_array, u16 tlv_array_len)
{
const u8 *tlv = tlv_array;
- u8 type, length, offset = 0;
+ u8 type, length;
+ u16 offset = 0;
pr_debug("TLV array length %d\n", tlv_array_len);
@@ -251,9 +259,15 @@ int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock *sock,
return -ENOTCONN;
while (offset < tlv_array_len) {
+ if (offset + 2 > tlv_array_len)
+ return -EINVAL;
+
type = tlv[0];
length = tlv[1];
+ if (offset + 2 + length > tlv_array_len)
+ return -EINVAL;
+
pr_debug("type 0x%x length %d\n", type, length);
switch (type) {
diff --git a/net/nfc/llcp_core.c b/net/nfc/llcp_core.c
index 62b0f2d6686e..db050f4faa5b 100644
--- a/net/nfc/llcp_core.c
+++ b/net/nfc/llcp_core.c
@@ -847,13 +847,16 @@ static struct nfc_llcp_sock *nfc_llcp_sock_get_sn(struct nfc_llcp_local *local,
static const u8 *nfc_llcp_connect_sn(const struct sk_buff *skb, size_t *sn_len)
{
u8 type, length;
- const u8 *tlv = &skb->data[2];
- size_t tlv_array_len = skb->len - LLCP_HEADER_SIZE, offset = 0;
+ const u8 *tlv = &skb->data[LLCP_HEADER_SIZE];
+ const u8 *tlv_end = skb_tail_pointer(skb);
- while (offset < tlv_array_len) {
+ while (tlv + 2 < tlv_end) {
type = tlv[0];
length = tlv[1];
+ if (tlv + 2 + length > tlv_end)
+ break;
+
pr_debug("type 0x%x length %d\n", type, length);
if (type == LLCP_TLV_SN) {
@@ -861,7 +864,6 @@ static const u8 *nfc_llcp_connect_sn(const struct sk_buff *skb, size_t *sn_len)
return &tlv[2];
}
- offset += length + 2;
tlv += length + 2;
}
@@ -1550,6 +1552,11 @@ static void nfc_llcp_rx_work(struct work_struct *work)
static void __nfc_llcp_recv(struct nfc_llcp_local *local, struct sk_buff *skb)
{
+ if (!pskb_may_pull(skb, LLCP_HEADER_SIZE)) {
+ kfree_skb(skb);
+ return;
+ }
+
local->rx_pending = skb;
del_timer(&local->link_timer);
schedule_work(&local->rx_work);
diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c
index df0f1200082c..f97a38b0fcab 100644
--- a/net/nfc/nci/ntf.c
+++ b/net/nfc/nci/ntf.c
@@ -440,7 +440,7 @@ void nci_clear_target_list(struct nci_dev *ndev)
static int nci_rf_discover_ntf_packet(struct nci_dev *ndev,
const struct sk_buff *skb)
{
- struct nci_rf_discover_ntf ntf;
+ struct nci_rf_discover_ntf ntf = {};
const __u8 *data;
bool add_target = true;
@@ -603,6 +603,12 @@ static void nci_target_auto_activated(struct nci_dev *ndev,
struct nfc_target *target;
int rc;
+ /* This is a new target, check if we've enough room */
+ if (ndev->n_targets == NCI_MAX_DISCOVERED_TARGETS) {
+ pr_debug("not enough room, ignoring new target...\n");
+ return;
+ }
+
target = &ndev->targets[ndev->n_targets];
rc = nci_add_new_protocol(ndev, target, ntf->rf_protocol,
@@ -666,7 +672,7 @@ static int nci_rf_intf_activated_ntf_packet(struct nci_dev *ndev,
const struct sk_buff *skb)
{
struct nci_conn_info *conn_info;
- struct nci_rf_intf_activated_ntf ntf;
+ struct nci_rf_intf_activated_ntf ntf = {};
const __u8 *data;
int err = NCI_STATUS_OK;
diff --git a/net/nfc/nci/rsp.c b/net/nfc/nci/rsp.c
index b911ab78bed9..fccd7ce69bb7 100644
--- a/net/nfc/nci/rsp.c
+++ b/net/nfc/nci/rsp.c
@@ -336,6 +336,7 @@ static void nci_core_conn_close_rsp_packet(struct nci_dev *ndev,
list_del(&conn_info->list);
if (conn_info == ndev->rf_conn_info)
ndev->rf_conn_info = NULL;
+ devm_kfree(&ndev->nfc_dev->dev, conn_info->dest_params);
devm_kfree(&ndev->nfc_dev->dev, conn_info);
}
}
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 792e5ef9361a..e399cd5696cf 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -2881,7 +2881,7 @@ int xfrm_user_policy(struct sock *sk, int optname, sockptr_t optval, int optlen)
if (sockptr_is_null(optval) && !optlen) {
xfrm_sk_policy_insert(sk, XFRM_POLICY_IN, NULL);
xfrm_sk_policy_insert(sk, XFRM_POLICY_OUT, NULL);
- __sk_dst_reset(sk);
+ sk_dst_reset(sk);
return 0;
}
@@ -2921,7 +2921,7 @@ int xfrm_user_policy(struct sock *sk, int optname, sockptr_t optval, int optlen)
if (err >= 0) {
xfrm_sk_policy_insert(sk, err, pol);
xfrm_pol_put(pol);
- __sk_dst_reset(sk);
+ sk_dst_reset(sk);
err = 0;
}
diff --git a/sound/drivers/dummy.c b/sound/drivers/dummy.c
index 8f5df9b3aaaa..35130af2d872 100644
--- a/sound/drivers/dummy.c
+++ b/sound/drivers/dummy.c
@@ -1025,6 +1025,12 @@ static int snd_dummy_probe(struct platform_device *devptr)
int idx, err;
int dev = devptr->id;
+ if (dev < 0 || dev >= SNDRV_CARDS) {
+ dev_warn(&devptr->dev,
+ "Invalid card index %d, using default 0\n", dev);
+ dev = 0;
+ }
+
err = snd_devm_card_new(&devptr->dev, index[dev], id[dev], THIS_MODULE,
sizeof(struct snd_dummy), &card);
if (err < 0)
diff --git a/sound/soc/codecs/lpass-tx-macro.c b/sound/soc/codecs/lpass-tx-macro.c
index ae1a3be26837..e28d7274fb0b 100644
--- a/sound/soc/codecs/lpass-tx-macro.c
+++ b/sound/soc/codecs/lpass-tx-macro.c
@@ -1076,7 +1076,7 @@ static int tx_macro_dec_mode_get(struct snd_kcontrol *kcontrol,
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
int path = e->shift_l;
- ucontrol->value.integer.value[0] = tx->dec_mode[path];
+ ucontrol->value.enumerated.item[0] = tx->dec_mode[path];
return 0;
}
@@ -1085,7 +1085,7 @@ static int tx_macro_dec_mode_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
- int value = ucontrol->value.integer.value[0];
+ int value = ucontrol->value.enumerated.item[0];
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
int path = e->shift_l;
struct tx_macro *tx = snd_soc_component_get_drvdata(component);
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index fd7a766331c7..0472451494b0 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -3736,6 +3736,12 @@ int snd_usb_mixer_resume(struct usb_mixer_interface *mixer)
struct usb_mixer_elem_list *list;
int id, err;
+ if (mixer->private_resume) {
+ err = mixer->private_resume(mixer);
+ if (err < 0)
+ return err;
+ }
+
/* restore cached mixer values */
for (id = 0; id < MAX_ID_ELEMS; id++) {
for_each_mixer_elem(list, mixer, id) {
diff --git a/sound/usb/mixer.h b/sound/usb/mixer.h
index 167fbfcf01ac..efaccdd92338 100644
--- a/sound/usb/mixer.h
+++ b/sound/usb/mixer.h
@@ -18,6 +18,7 @@ struct usb_mixer_interface {
struct usb_host_interface *hostif;
struct list_head list;
unsigned int ignore_ctl_error;
+ /* UAC2 status interrupt endpoint; owned by mixer.c */
struct urb *urb;
/* array[MAX_ID_ELEMS], indexed by unit id */
struct usb_mixer_elem_list **id_elems;
@@ -42,6 +43,7 @@ struct usb_mixer_interface {
void *private_data;
void (*private_free)(struct usb_mixer_interface *mixer);
void (*private_suspend)(struct usb_mixer_interface *mixer);
+ int (*private_resume)(struct usb_mixer_interface *mixer);
};
#define MAX_CHANNELS 16 /* max logical channels */
diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c
index 28ea0dd5726a..9500f5e35fa5 100644
--- a/sound/usb/mixer_scarlett2.c
+++ b/sound/usb/mixer_scarlett2.c
@@ -1259,6 +1259,7 @@ struct scarlett2_data {
struct usb_mixer_interface *mixer;
struct mutex usb_mutex; /* prevent sending concurrent USB requests */
struct completion cmd_done;
+ struct urb *urb; /* notification endpoint */
struct mutex data_mutex; /* lock access to this data */
u8 running;
u8 hwdep_in_use;
@@ -8641,13 +8642,70 @@ static void scarlett2_notify(struct urb *urb)
}
}
-/*** Cleanup/Suspend Callbacks ***/
+/*** Notification URB and Cleanup/Suspend Callbacks ***/
+
+/* Submit a URB to receive notifications from the device */
+static int scarlett2_init_notify(struct usb_mixer_interface *mixer)
+{
+ struct usb_device *dev = mixer->chip->dev;
+ struct scarlett2_data *private = mixer->private_data;
+ unsigned int pipe = usb_rcvintpipe(dev, private->bEndpointAddress);
+ void *transfer_buffer;
+ int err;
+
+ /* Already set up */
+ if (private->urb)
+ return 0;
+
+ if (usb_pipe_type_check(dev, pipe))
+ return -EINVAL;
+
+ private->urb = usb_alloc_urb(0, GFP_KERNEL);
+ if (!private->urb)
+ return -ENOMEM;
+
+ transfer_buffer = kmalloc(private->wMaxPacketSize, GFP_KERNEL);
+ if (!transfer_buffer) {
+ usb_free_urb(private->urb);
+ private->urb = NULL;
+ return -ENOMEM;
+ }
+
+ usb_fill_int_urb(private->urb, dev, pipe,
+ transfer_buffer, private->wMaxPacketSize,
+ scarlett2_notify, mixer, private->bInterval);
+
+ reinit_completion(&private->cmd_done);
+
+ err = usb_submit_urb(private->urb, GFP_KERNEL);
+ if (err) {
+ kfree(transfer_buffer);
+ usb_free_urb(private->urb);
+ private->urb = NULL;
+ }
+
+ return err;
+}
+
+static void scarlett2_cleanup_urb(struct usb_mixer_interface *mixer)
+{
+ struct scarlett2_data *private = mixer->private_data;
+
+ if (!private->urb)
+ return;
+
+ usb_kill_urb(private->urb);
+ kfree(private->urb->transfer_buffer);
+ usb_free_urb(private->urb);
+ private->urb = NULL;
+}
static void scarlett2_private_free(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
cancel_delayed_work_sync(&private->work);
+ scarlett2_cleanup_urb(mixer);
kfree(private);
mixer->private_data = NULL;
}
@@ -8658,6 +8716,8 @@ static void scarlett2_private_suspend(struct usb_mixer_interface *mixer)
if (cancel_delayed_work_sync(&private->work))
scarlett2_config_save(private->mixer);
+
+ scarlett2_cleanup_urb(mixer);
}
/*** Initialisation ***/
@@ -8778,11 +8838,13 @@ static int scarlett2_init_private(struct usb_mixer_interface *mixer,
mutex_init(&private->usb_mutex);
mutex_init(&private->data_mutex);
+ init_completion(&private->cmd_done);
INIT_DELAYED_WORK(&private->work, scarlett2_config_save_work);
mixer->private_data = private;
mixer->private_free = scarlett2_private_free;
mixer->private_suspend = scarlett2_private_suspend;
+ mixer->private_resume = scarlett2_init_notify;
private->info = entry->info;
@@ -8799,40 +8861,6 @@ static int scarlett2_init_private(struct usb_mixer_interface *mixer,
return scarlett2_find_fc_interface(mixer->chip->dev, private);
}
-/* Submit a URB to receive notifications from the device */
-static int scarlett2_init_notify(struct usb_mixer_interface *mixer)
-{
- struct usb_device *dev = mixer->chip->dev;
- struct scarlett2_data *private = mixer->private_data;
- unsigned int pipe = usb_rcvintpipe(dev, private->bEndpointAddress);
- void *transfer_buffer;
-
- if (mixer->urb) {
- usb_audio_err(mixer->chip,
- "%s: mixer urb already in use!\n", __func__);
- return 0;
- }
-
- if (usb_pipe_type_check(dev, pipe))
- return -EINVAL;
-
- mixer->urb = usb_alloc_urb(0, GFP_KERNEL);
- if (!mixer->urb)
- return -ENOMEM;
-
- transfer_buffer = kmalloc(private->wMaxPacketSize, GFP_KERNEL);
- if (!transfer_buffer)
- return -ENOMEM;
-
- usb_fill_int_urb(mixer->urb, dev, pipe,
- transfer_buffer, private->wMaxPacketSize,
- scarlett2_notify, mixer, private->bInterval);
-
- init_completion(&private->cmd_done);
-
- return usb_submit_urb(mixer->urb, GFP_KERNEL);
-}
-
/* Cargo cult proprietary initialisation sequence */
static int scarlett2_usb_init(struct usb_mixer_interface *mixer)
{
^ permalink raw reply [flat|nested] 2+ messages in thread
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2026-08-27 12:56 ` Greg Kroah-Hartman
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