In the Linux kernel, the following vulnerability has been resolved:
wireguard: receive: annotate data-race around receiving_counter.counter
Syzkaller with KCSAN identified a data-race issue when accessing
keypair->receiving_counter.counter. Use READ_ONCE() and WRITE_ONCE()
annotations to mark the data race as intentional.
BUG: KCSAN: data-race in wg_packet_decrypt_worker / wg_packet_rx_poll
write to 0xffff888107765888 of 8 bytes by interrupt on cpu 0:
counter_validate drivers/net/wireguard/receive.c:321 [inline]
wg_packet_rx_poll+0x3ac/0xf00 drivers/net/wireguard/receive.c:461
__napi_poll+0x60/0x3b0 net/core/dev.c:6536
napi_poll net/core/dev.c:6605 [inline]
net_rx_action+0x32b/0x750 net/core/dev.c:6738
__do_softirq+0xc4/0x279 kernel/softirq.c:553
do_softirq+0x5e/0x90 kernel/softirq.c:454
__local_bh_enable_ip+0x64/0x70 kernel/softirq.c:381
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
_raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210
spin_unlock_bh include/linux/spinlock.h:396 [inline]
ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]
wg_packet_decrypt_worker+0x6c5/0x700 drivers/net/wireguard/receive.c:499
process_one_work kernel/workqueue.c:2633 [inline]
...
read to 0xffff888107765888 of 8 bytes by task 3196 on cpu 1:
decrypt_packet drivers/net/wireguard/receive.c:252 [inline]
wg_packet_decrypt_worker+0x220/0x700 drivers/net/wireguard/receive.c:501
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
...
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/net/wireguard/receive.c"
],
"versions": [
{
"version": "a9e90d9931f3",
"lessThan": "f87884e0dffd",
"status": "affected",
"versionType": "git"
},
{
"version": "a9e90d9931f3",
"lessThan": "d691be84ab89",
"status": "affected",
"versionType": "git"
},
{
"version": "a9e90d9931f3",
"lessThan": "45a83b220c83",
"status": "affected",
"versionType": "git"
},
{
"version": "a9e90d9931f3",
"lessThan": "78739d72f16b",
"status": "affected",
"versionType": "git"
},
{
"version": "a9e90d9931f3",
"lessThan": "3f94da807fe1",
"status": "affected",
"versionType": "git"
},
{
"version": "a9e90d9931f3",
"lessThan": "fdf16de078a9",
"status": "affected",
"versionType": "git"
},
{
"version": "a9e90d9931f3",
"lessThan": "bba045dc4d99",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/net/wireguard/receive.c"
],
"versions": [
{
"version": "5.7",
"status": "affected"
},
{
"version": "0",
"lessThan": "5.7",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.10.214",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "5.15.153",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.1.83",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.6.23",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.7.11",
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.8.2",
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.9",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]
git.kernel.org/stable/c/3f94da807fe1668b9830f0eefbbf7e887b0a7bc6
git.kernel.org/stable/c/45a83b220c83e3c326513269afbf69ae6fc65cce
git.kernel.org/stable/c/78739d72f16b2d7d549f713f1dfebd678d32484b
git.kernel.org/stable/c/bba045dc4d996d03dce6fe45726e78a1a1f6d4c3
git.kernel.org/stable/c/d691be84ab898cf136a35176eaf2f8fc116563f0
git.kernel.org/stable/c/f87884e0dffd61b47e58bc6e1e2f6843c212b0cc
git.kernel.org/stable/c/fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed
lists.debian.org/debian-lts-announce/2024/06/msg00017.html