CVE-2024-26862
Severity CVSS v4.0:
Pending analysis
Type:
CWE-362
Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Publication date:
17/04/2024
Last modified:
03/03/2025
Description
In the Linux kernel, the following vulnerability has been resolved:<br />
<br />
packet: annotate data-races around ignore_outgoing<br />
<br />
ignore_outgoing is read locklessly from dev_queue_xmit_nit()<br />
and packet_getsockopt()<br />
<br />
Add appropriate READ_ONCE()/WRITE_ONCE() annotations.<br />
<br />
syzbot reported:<br />
<br />
BUG: KCSAN: data-race in dev_queue_xmit_nit / packet_setsockopt<br />
<br />
write to 0xffff888107804542 of 1 bytes by task 22618 on cpu 0:<br />
packet_setsockopt+0xd83/0xfd0 net/packet/af_packet.c:4003<br />
do_sock_setsockopt net/socket.c:2311 [inline]<br />
__sys_setsockopt+0x1d8/0x250 net/socket.c:2334<br />
__do_sys_setsockopt net/socket.c:2343 [inline]<br />
__se_sys_setsockopt net/socket.c:2340 [inline]<br />
__x64_sys_setsockopt+0x66/0x80 net/socket.c:2340<br />
do_syscall_64+0xd3/0x1d0<br />
entry_SYSCALL_64_after_hwframe+0x6d/0x75<br />
<br />
read to 0xffff888107804542 of 1 bytes by task 27 on cpu 1:<br />
dev_queue_xmit_nit+0x82/0x620 net/core/dev.c:2248<br />
xmit_one net/core/dev.c:3527 [inline]<br />
dev_hard_start_xmit+0xcc/0x3f0 net/core/dev.c:3547<br />
__dev_queue_xmit+0xf24/0x1dd0 net/core/dev.c:4335<br />
dev_queue_xmit include/linux/netdevice.h:3091 [inline]<br />
batadv_send_skb_packet+0x264/0x300 net/batman-adv/send.c:108<br />
batadv_send_broadcast_skb+0x24/0x30 net/batman-adv/send.c:127<br />
batadv_iv_ogm_send_to_if net/batman-adv/bat_iv_ogm.c:392 [inline]<br />
batadv_iv_ogm_emit net/batman-adv/bat_iv_ogm.c:420 [inline]<br />
batadv_iv_send_outstanding_bat_ogm_packet+0x3f0/0x4b0 net/batman-adv/bat_iv_ogm.c:1700<br />
process_one_work kernel/workqueue.c:3254 [inline]<br />
process_scheduled_works+0x465/0x990 kernel/workqueue.c:3335<br />
worker_thread+0x526/0x730 kernel/workqueue.c:3416<br />
kthread+0x1d1/0x210 kernel/kthread.c:388<br />
ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147<br />
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243<br />
<br />
value changed: 0x00 -> 0x01<br />
<br />
Reported by Kernel Concurrency Sanitizer on:<br />
CPU: 1 PID: 27 Comm: kworker/u8:1 Tainted: G W 6.8.0-syzkaller-08073-g480e035fc4c7 #0<br />
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024<br />
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
Impact
Base Score 3.x
4.70
Severity 3.x
MEDIUM
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 4.20 (including) | 5.4.273 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.5 (including) | 5.10.214 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.11 (including) | 5.15.153 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 5.16 (including) | 6.1.83 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.2 (including) | 6.6.23 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.7 (including) | 6.7.11 (excluding) |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | 6.8 (including) | 6.8.2 (excluding) |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- https://git.kernel.org/stable/c/2c02c5059c78a52d170bdee4a369b470de6deb37
- https://git.kernel.org/stable/c/68e84120319d4fc298fcdb14cf0bea6a0f64ffbd
- https://git.kernel.org/stable/c/6ebfad33161afacb3e1e59ed1c2feefef70f9f97
- https://git.kernel.org/stable/c/84c510411e321caff3c07e6cd0f917f06633cfc0
- https://git.kernel.org/stable/c/8b1e273c6afcf00d3c40a54ada7d6aac1b503b97
- https://git.kernel.org/stable/c/d35b62c224e70797f8a1c37fe9bc4b3e294b7560
- https://git.kernel.org/stable/c/ee413f30ec4fe94a0bdf32c8f042cb06fa913234
- https://git.kernel.org/stable/c/ef7eed7e11d23337310ecc2c014ecaeea52719c5
- https://git.kernel.org/stable/c/2c02c5059c78a52d170bdee4a369b470de6deb37
- https://git.kernel.org/stable/c/68e84120319d4fc298fcdb14cf0bea6a0f64ffbd
- https://git.kernel.org/stable/c/6ebfad33161afacb3e1e59ed1c2feefef70f9f97
- https://git.kernel.org/stable/c/84c510411e321caff3c07e6cd0f917f06633cfc0
- https://git.kernel.org/stable/c/8b1e273c6afcf00d3c40a54ada7d6aac1b503b97
- https://git.kernel.org/stable/c/d35b62c224e70797f8a1c37fe9bc4b3e294b7560
- https://git.kernel.org/stable/c/ee413f30ec4fe94a0bdf32c8f042cb06fa913234
- https://git.kernel.org/stable/c/ef7eed7e11d23337310ecc2c014ecaeea52719c5
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html



