CVE-2024-26731
published 2024-04-03CVE-2024-26731: In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready() syzbot reported…
PriorityP425medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
EPSS
0.83%
54.0th percentile
In the Linux kernel, the following vulnerability has been resolved:
bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
syzbot reported the following NULL pointer dereference issue [1]:
BUG: kernel NULL pointer dereference, address: 0000000000000000
[...]
RIP: 0010:0x0
[...]
Call Trace:
sk_psock_verdict_data_ready+0x232/0x340 net/core/skmsg.c:1230
unix_stream_sendmsg+0x9b4/0x1230 net/unix/af_unix.c:2293
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
If sk_psock_verdict_data_ready() and sk_psock_stop_verdict() are called
concurrently, psock->saved_data_ready can be NULL, causing the above issue.
This patch fixes this issue by calling the appropriate data ready function
using the sk_psock_data_ready() helper and protecting it from concurrency
with sk->sk_callback_lock.
Affected
16 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.82-1 (bookworm) | linux 6.1.82-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | — | — |
| linux | linux | >= 6.1.32 < 6.1.80 | 6.1.80 |
| linux | linux | >= 6.3.6 < 6.4 | 6.4 |
| linux | linux | >= 6df7f764cd3cf5a03a4a47b23be47e57e41fcd85 < 9b099ed46dcaf1403c531ff02c3d7400fa37fa26 | 9b099ed46dcaf1403c531ff02c3d7400fa37fa26 |
| linux | linux | >= 6df7f764cd3cf5a03a4a47b23be47e57e41fcd85 < d61608a4e394f23e0dca099df9eb8e555453d949 | d61608a4e394f23e0dca099df9eb8e555453d949 |
| linux | linux | >= 6df7f764cd3cf5a03a4a47b23be47e57e41fcd85 < 4cd12c6065dfcdeba10f49949bffcf383b3952d8 | 4cd12c6065dfcdeba10f49949bffcf383b3952d8 |
| linux | linux | >= dd628fc697ee59b76bd3877c4bd13f07ccc3776f < 4588b13abcbd561ec67f5b3c1cb2eff690990a54 | 4588b13abcbd561ec67f5b3c1cb2eff690990a54 |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.1.82-1 | 6.1.82-1 |
| linux | linux_kernel | >= 0 < 6.7.7-1 | 6.7.7-1 |
| linux | linux_kernel | >= 0 < 6.7.7-1 | 6.7.7-1 |
| linux | linux_kernel | >= 6.1.32 < 6.1.80 | 6.1.80 |
| linux | linux_kernel | >= 6.3.6 < 6.6.19 | 6.6.19 |
| linux | linux_kernel | >= 6.7 < 6.7.7 | 6.7.7 |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
osv5.3MEDIUM
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
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OSV
CVE-2024-26731: In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready() syzbot
osv·2024-04-03·CVSS 5.3
CVE-2024-26731 [MEDIUM] CVE-2024-26731: In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready() syzbot
In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready() syzbot reported the following NULL pointer dereference issue [1]: BUG: kernel NULL pointer dereference, address: 0000000000000000 [...] RIP: 0010:0x0 [...] Call Trace: sk_psock_verdict_data_ready+0x232/0x340 net/core/skmsg.c:1230 unix_stream_sendmsg+0x9b4/0x1230 net/unix/af_unix.c:2293 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 If sk_psock_verdict_data_ready() and sk_psock_stop_verdict() are called concurrent
GHSA
GHSA-x96q-4pr8-5qm2: In the Linux kernel, the following vulnerability has been resolved:
bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
syzb
ghsa_unreviewed·2024-04-03
CVE-2024-26731 [MEDIUM] CWE-476 GHSA-x96q-4pr8-5qm2: In the Linux kernel, the following vulnerability has been resolved:
bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
syzb
In the Linux kernel, the following vulnerability has been resolved:
bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
syzbot reported the following NULL pointer dereference issue [1]:
BUG: kernel NULL pointer dereference, address: 0000000000000000
[...]
RIP: 0010:0x0
[...]
Call Trace:
sk_psock_verdict_data_ready+0x232/0x340 net/core/skmsg.c:1230
unix_stream_sendmsg+0x9b4/0x1230 net/unix/af_unix.c:2293
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
If sk_psock_verdict_data_ready() and sk_psock_stop_verdict() are called
concu
Red Hat
kernel: bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
vendor_redhat·2024-04-03·CVSS 5.3
CVE-2024-26731 [MEDIUM] CWE-362 kernel: bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
kernel: bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
In the Linux kernel, the following vulnerability has been resolved:
bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready()
syzbot reported the following NULL pointer dereference issue [1]:
BUG: kernel NULL pointer dereference, address: 0000000000000000
[...]
RIP: 0010:0x0
[...]
Call Trace:
sk_psock_verdict_data_ready+0x232/0x340 net/core/skmsg.c:1230
unix_stream_sendmsg+0x9b4/0x1230 net/unix/af_unix.c:2293
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0
Debian
CVE-2024-26731: linux - In the Linux kernel, the following vulnerability has been resolved: bpf, sockma...
vendor_debian·2024·CVSS 5.3
CVE-2024-26731 [MEDIUM] CVE-2024-26731: linux - In the Linux kernel, the following vulnerability has been resolved: bpf, sockma...
In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix NULL pointer dereference in sk_psock_verdict_data_ready() syzbot reported the following NULL pointer dereference issue [1]: BUG: kernel NULL pointer dereference, address: 0000000000000000 [...] RIP: 0010:0x0 [...] Call Trace: sk_psock_verdict_data_ready+0x232/0x340 net/core/skmsg.c:1230 unix_stream_sendmsg+0x9b4/0x1230 net/unix/af_unix.c:2293 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:745 ____sys_sendmsg+0x525/0x7d0 net/socket.c:2584 ___sys_sendmsg net/socket.c:2638 [inline] __sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 If sk_psock_verdict_data_ready() and sk_psock_stop_verdict() are called concurrent
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/4588b13abcbd561ec67f5b3c1cb2eff690990a54https://git.kernel.org/stable/c/4cd12c6065dfcdeba10f49949bffcf383b3952d8https://git.kernel.org/stable/c/9b099ed46dcaf1403c531ff02c3d7400fa37fa26https://git.kernel.org/stable/c/d61608a4e394f23e0dca099df9eb8e555453d949https://git.kernel.org/stable/c/4588b13abcbd561ec67f5b3c1cb2eff690990a54https://git.kernel.org/stable/c/4cd12c6065dfcdeba10f49949bffcf383b3952d8https://git.kernel.org/stable/c/9b099ed46dcaf1403c531ff02c3d7400fa37fa26https://git.kernel.org/stable/c/d61608a4e394f23e0dca099df9eb8e555453d949
2024-04-03
Published