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Filename Latest commit message Latest commit date
Jason A. Donenfeld 4e4e4524fc
 UPSTREAM: wireguard: send: annotate intentional data race in checking empty queue 
KCSAN reports a race in wg_packet_send_keepalive, which is intentional:

    BUG: KCSAN: data-race in wg_packet_send_keepalive / wg_packet_send_staged_packets

    write to 0xffff88814cd91280 of 8 bytes by task 3194 on cpu 0:
     __skb_queue_head_init include/linux/skbuff.h:2162 [inline]
     skb_queue_splice_init include/linux/skbuff.h:2248 [inline]
     wg_packet_send_staged_packets+0xe5/0xad0 drivers/net/wireguard/send.c:351
     wg_xmit+0x5b8/0x660 drivers/net/wireguard/device.c:218
     __netdev_start_xmit include/linux/netdevice.h:4940 [inline]
     netdev_start_xmit include/linux/netdevice.h:4954 [inline]
     xmit_one net/core/dev.c:3548 [inline]
     dev_hard_start_xmit+0x11b/0x3f0 net/core/dev.c:3564
     __dev_queue_xmit+0xeff/0x1d80 net/core/dev.c:4349
     dev_queue_xmit include/linux/netdevice.h:3134 [inline]
     neigh_connected_output+0x231/0x2a0 net/core/neighbour.c:1592
     neigh_output include/net/neighbour.h:542 [inline]
     ip6_finish_output2+0xa66/0xce0 net/ipv6/ip6_output.c:137
     ip6_finish_output+0x1a5/0x490 net/ipv6/ip6_output.c:222
     NF_HOOK_COND include/linux/netfilter.h:303 [inline]
     ip6_output+0xeb/0x220 net/ipv6/ip6_output.c:243
     dst_output include/net/dst.h:451 [inline]
     NF_HOOK include/linux/netfilter.h:314 [inline]
     ndisc_send_skb+0x4a2/0x670 net/ipv6/ndisc.c:509
     ndisc_send_rs+0x3ab/0x3e0 net/ipv6/ndisc.c:719
     addrconf_dad_completed+0x640/0x8e0 net/ipv6/addrconf.c:4295
     addrconf_dad_work+0x891/0xbc0
     process_one_work kernel/workqueue.c:2633 [inline]
     process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706
     worker_thread+0x525/0x730 kernel/workqueue.c:2787
     kthread+0x1d7/0x210 kernel/kthread.c:388
     ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
     ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

    read to 0xffff88814cd91280 of 8 bytes by task 3202 on cpu 1:
     skb_queue_empty include/linux/skbuff.h:1798 [inline]
     wg_packet_send_keepalive+0x20/0x100 drivers/net/wireguard/send.c:225
     wg_receive_handshake_packet drivers/net/wireguard/receive.c:186 [inline]
     wg_packet_handshake_receive_worker+0x445/0x5e0 drivers/net/wireguard/receive.c:213
     process_one_work kernel/workqueue.c:2633 [inline]
     process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706
     worker_thread+0x525/0x730 kernel/workqueue.c:2787
     kthread+0x1d7/0x210 kernel/kthread.c:388
     ret_from_fork+0x48/0x60 arch/x86/kernel/process.c:147
     ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242

    value changed: 0xffff888148fef200 -> 0xffff88814cd91280

Mark this race as intentional by using the skb_queue_empty_lockless()
function rather than skb_queue_empty(), which uses READ_ONCE()
internally to annotate the race.

Bug: 254441685
Cc: stable@vger.kernel.org
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://patch.msgid.link/20240704154517.1572127-5-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit 381a7d453fa2ac5f854a154d3c9b1bbb90c4f94f)
Signed-off-by: Lee Jones <joneslee@google.com>
Change-Id: I2c7bfa280efeb3dbbc6ba5559a22a1d019edb489
2025-09-24 12:16:42 +02:00
..
accessibility
acpi This is the 5.4.296 stable release 2025-07-18 10:57:54 +00:00
amba
android Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
ata ata: pata_cs5536: fix build on 32-bit UML 2025-07-17 18:24:57 +02:00
atm atm: idt77252: Add missing dma_map_error() 2025-07-17 18:25:05 +02:00
auxdisplay
base Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
bcma
block Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
bluetooth Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
bus Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
cdrom
char Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
clk Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
clocksource Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
connector
counter
cpufreq Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
cpuidle Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
crypto Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
dax
dca
devfreq
dio
dma Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
dma-buf Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
edac Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
eisa
extcon
firewire
firmware Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
fpga fpga: altera-cvp: Increase credit timeout 2025-06-04 14:32:32 +02:00
fsi
gnss
gpio gpio: zynq: Fix wakeup source leaks on device unbind 2025-05-02 07:39:17 +02:00
gpu Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
greybus
hid Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
hsi HSI: ssi_protocol: Fix use after free vulnerability in ssi_protocol Driver Due to Race Condition 2025-05-02 07:39:18 +02:00
hv
hwmon Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
hwspinlock
hwtracing Merge tag 'ASB-2025-05-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-05-18 08:00:20 +00:00
i2c Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
i3c Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
ide
idle
iio Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
infiniband This is the 5.4.296 stable release 2025-07-18 10:57:54 +00:00
input Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
interconnect
iommu Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
ipack
irqchip Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
isdn
leds Merge tag 'ASB-2025-05-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-05-18 08:00:20 +00:00
lightnvm
macintosh
mailbox Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
mcb mcb: fix a double free bug in chameleon_parse_gdd() 2025-05-02 07:39:26 +02:00
md Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
media Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
memory
memstick
message
mfd Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
misc Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
mmc Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
mtd Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
mux
net UPSTREAM: wireguard: send: annotate intentional data race in checking empty queue 2025-09-24 12:16:42 +02:00
nfc
ntb ntb: reduce stack usage in idt_scan_mws 2025-05-02 07:39:28 +02:00
nubus
nvdimm libnvdimm/labels: Fix divide error in nd_label_data_init() 2025-06-04 14:32:30 +02:00
nvme nvmet-tcp: don't restore null sk_state_change 2025-06-04 14:32:35 +02:00
nvmem Merge tag 'ASB-2025-05-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-05-18 08:00:20 +00:00
of Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
opp
oprofile
parisc
parport
pci Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
pcmcia
perf Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
phy Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
pinctrl Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
platform Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
pnp
power Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
powercap
pps
ps3
ptp
pwm Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
rapidio drivers/rapidio/rio_cm.c: prevent possible heap overwrite 2025-06-27 11:02:56 +01:00
ras
regulator Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
remoteproc
reset
rpmsg Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
rtc Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
s390 scsi: s390: zfcp: Ensure synchronous unit_add 2025-06-27 11:02:56 +01:00
sbus
scsi Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
sfi
sh
siox
slimbus Merge tag 'ASB-2025-05-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-05-18 08:00:20 +00:00
soc Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
soundwire
spi Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
spmi
ssb
staging Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
target This is the 5.4.294 stable release 2025-06-05 07:11:21 +00:00
tc
tee tee: Prevent size calculation wraparound on 32-bit kernels 2025-06-27 11:02:55 +01:00
thermal Merge tag 'ASB-2025-06-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-06-30 10:49:17 +03:00
thunderbolt thunderbolt: Do not double dequeue a configuration request 2025-06-27 11:02:44 +01:00
tty Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
uio Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
usb Merge tag 'ASB-2025-09-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-12 18:48:05 +03:00
vfio
vhost
video Merge tag 'ASB-2025-08-05_11-5.4' of https://android.googlesource.com/kernel/common into android13-5.4-lahaina 2025-09-01 13:17:46 +03:00
virt
virtio
visorbus
vlynq
vme
w1
watchdog watchdog: da9052_wdt: respect TWDMIN 2025-06-27 11:02:55 +01:00
xen xen/swiotlb: relax alignment requirements 2025-06-04 14:32:37 +02:00
zorro
Kconfig
Makefile
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