CVE-2023-53831
published 2025-12-09CVE-2023-53831: In the Linux kernel, the following vulnerability has been resolved: net: read sk->sk_family once in sk_mc_loop() syzbot is playing with IPV6_ADDRFORM quite a…
PriorityP424low4.5
EPSS
0.23%
13.9th percentile
In the Linux kernel, the following vulnerability has been resolved:
net: read sk->sk_family once in sk_mc_loop()
syzbot is playing with IPV6_ADDRFORM quite a lot these days,
and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop()
We have many more similar issues to fix.
WARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260
Modules linked in:
CPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events_power_efficient gc_worker
RIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782
Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd 0b b3 01 eb 34 e8 d0 33 1b fd 45 31 f6 49 83 c6 38 4c 89 f0 48
RSP: 0018:ffffc90000388530 EFLAGS: 00010246
RAX: ffffffff846d9b55 RBX: 0000000000000011 RCX: ffff88814f884980
RDX: 0000000000000102 RSI: ffffffff87ae5160 RDI: 0000000000000011
RBP: ffffc90000388550 R08: 0000000000000003 R09: ffffffff846d9a65
R10: 0000000000000002 R11: ffff88814f884980 R12: dffffc0000000000
R13: ffff88810dbee000 R14: 0000000000000010 R15: ffff888150084000
FS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 000000014ee5b000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
[] ip6_finish_output2+0x33f/0x1ae0 net/ipv6/ip6_output.c:83
[] __ip6_finish_output net/ipv6/ip6_output.c:200 [inline]
[] ip6_finish_output+0x6c6/0xb10 net/ipv6/ip6_output.c:211
[] NF_HOOK_COND include/linux/netfilter.h:298 [inline]
[] ip6_output+0x2bc/0x3d0 net/ipv6/ip6_output.c:232
[] dst_output include/net/dst.h:444 [inline]
[] ip6_local_out+0x10f/0x140 net/ipv6/output_core.c:161
[] ipvlan_process_v6_outbound drivers/net/ipvlan/ipvlan_core.c:483 [inline]
[] ipvlan_proce
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.55-1 (bookworm) | linux 6.1.55-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 7ad6848c7e81a603605fad3f3575841aab004eea < 7586a66b9c4f1b8a825ea1dfa3a91aad5cc7b89b | 7586a66b9c4f1b8a825ea1dfa3a91aad5cc7b89b |
| linux | linux | >= 7ad6848c7e81a603605fad3f3575841aab004eea < e918d0211ffbaf039447334c3460cafee1ce0157 | e918d0211ffbaf039447334c3460cafee1ce0157 |
| linux | linux | >= 7ad6848c7e81a603605fad3f3575841aab004eea < 41f10a4d78fe69d685a3172e6884297f233dcf95 | 41f10a4d78fe69d685a3172e6884297f233dcf95 |
| linux | linux | >= 7ad6848c7e81a603605fad3f3575841aab004eea < 895dc4c47171a20035cdaa8d74c1c1e97f2fc974 | 895dc4c47171a20035cdaa8d74c1c1e97f2fc974 |
| linux | linux | >= 7ad6848c7e81a603605fad3f3575841aab004eea < ed4e0adfa407ab65dd73b8862ebf2f308a0349d2 | ed4e0adfa407ab65dd73b8862ebf2f308a0349d2 |
| linux | linux | >= 7ad6848c7e81a603605fad3f3575841aab004eea < 9036b6342fcdab190d6edce3dd447859c1de90fc | 9036b6342fcdab190d6edce3dd447859c1de90fc |
| linux | linux | >= 7ad6848c7e81a603605fad3f3575841aab004eea < b1f5b890b89cb38a6c0bac91984d56cd69808e8c | b1f5b890b89cb38a6c0bac91984d56cd69808e8c |
| linux | linux | >= 7ad6848c7e81a603605fad3f3575841aab004eea < a3e0fdf71bbe031de845e8e08ed7fba49f9c702c | a3e0fdf71bbe031de845e8e08ed7fba49f9c702c |
| linux | linux_kernel | >= 0 < 5.10.197-1 | 5.10.197-1 |
| linux | linux_kernel | >= 0 < 6.1.55-1 | 6.1.55-1 |
| linux | linux_kernel | >= 0 < 6.5.6-1 | 6.5.6-1 |
| linux | linux_kernel | >= 0 < 6.5.6-1 | 6.5.6-1 |
| linux | linux_kernel | >= 2.6.33 < 4.14.326 | 4.14.326 |
| linux | linux_kernel | >= 4.15.0 < 4.19.295 | 4.19.295 |
| linux | linux_kernel | >= 4.20.0 < 5.4.257 | 5.4.257 |
| linux | linux_kernel | >= 5.11.0 < 5.15.132 | 5.15.132 |
| linux | linux_kernel | >= 5.16.0 < 6.1.54 | 6.1.54 |
| linux | linux_kernel | >= 5.5.0 < 5.10.195 | 5.10.195 |
| linux | linux_kernel | >= 6.2.0 < 6.5.4 | 6.5.4 |
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GHSA
GHSA-83cq-hc8w-3693: In the Linux kernel, the following vulnerability has been resolved:
net: read sk->sk_family once in sk_mc_loop()
syzbot is playing with IPV6_ADDRFOR
ghsa_unreviewed·2025-12-09
CVE-2023-53831 GHSA-83cq-hc8w-3693: In the Linux kernel, the following vulnerability has been resolved:
net: read sk->sk_family once in sk_mc_loop()
syzbot is playing with IPV6_ADDRFOR
In the Linux kernel, the following vulnerability has been resolved:
net: read sk->sk_family once in sk_mc_loop()
syzbot is playing with IPV6_ADDRFORM quite a lot these days,
and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop()
We have many more similar issues to fix.
WARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260
Modules linked in:
CPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events_power_efficient gc_worker
RIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782
Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd 0b b3 01 eb 34 e8 d0 33 1b fd 45 31 f6 49 83 c6 3
OSV
CVE-2023-53831: In the Linux kernel, the following vulnerability has been resolved: net: read sk->sk_family once in sk_mc_loop() syzbot is playing with IPV6_ADDRFORM
osv·2025-12-09
CVE-2023-53831 CVE-2023-53831: In the Linux kernel, the following vulnerability has been resolved: net: read sk->sk_family once in sk_mc_loop() syzbot is playing with IPV6_ADDRFORM
In the Linux kernel, the following vulnerability has been resolved: net: read sk->sk_family once in sk_mc_loop() syzbot is playing with IPV6_ADDRFORM quite a lot these days, and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop() We have many more similar issues to fix. WARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260 Modules linked in: CPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Workqueue: events_power_efficient gc_worker RIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782 Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd 0b b3 01 eb 34 e8 d0 33 1b fd 45 31 f6 49 83 c6 38 4c
OSV
net: read sk->sk_family once in sk_mc_loop()
osv·2025-12-09
CVE-2023-53831 net: read sk->sk_family once in sk_mc_loop()
net: read sk->sk_family once in sk_mc_loop()
In the Linux kernel, the following vulnerability has been resolved:
net: read sk->sk_family once in sk_mc_loop()
syzbot is playing with IPV6_ADDRFORM quite a lot these days,
and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop()
We have many more similar issues to fix.
WARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260
Modules linked in:
CPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events_power_efficient gc_worker
RIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782
Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd 0b
Red Hat
kernel: net: read sk->sk_family once in sk_mc_loop()
vendor_redhat·2025-12-09·CVSS 4.5
CVE-2023-53831 [LOW] CWE-820 kernel: net: read sk->sk_family once in sk_mc_loop()
kernel: net: read sk->sk_family once in sk_mc_loop()
In the Linux kernel, the following vulnerability has been resolved:
net: read sk->sk_family once in sk_mc_loop()
syzbot is playing with IPV6_ADDRFORM quite a lot these days,
and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop()
We have many more similar issues to fix.
WARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260
Modules linked in:
CPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events_power_efficient gc_worker
RIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782
Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd
Debian
CVE-2023-53831: linux - In the Linux kernel, the following vulnerability has been resolved: net: read s...
vendor_debian·2023
CVE-2023-53831 CVE-2023-53831: linux - In the Linux kernel, the following vulnerability has been resolved: net: read s...
In the Linux kernel, the following vulnerability has been resolved: net: read sk->sk_family once in sk_mc_loop() syzbot is playing with IPV6_ADDRFORM quite a lot these days, and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop() We have many more similar issues to fix. WARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260 Modules linked in: CPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Workqueue: events_power_efficient gc_worker RIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782 Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 eb 13 e8 db 33 1b fd 0b b3 01 eb 34 e8 d0 33 1b fd 45 31 f6 49 83 c6 38 4c
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2023-53831 kernel: net: read sk->sk_family once in sk_mc_loop()
bugzilla·2025-12-09
CVE-2023-53831 [LOW] CVE-2023-53831 kernel: net: read sk->sk_family once in sk_mc_loop()
CVE-2023-53831 kernel: net: read sk->sk_family once in sk_mc_loop()
In the Linux kernel, the following vulnerability has been resolved:
net: read sk->sk_family once in sk_mc_loop()
syzbot is playing with IPV6_ADDRFORM quite a lot these days,
and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop()
We have many more similar issues to fix.
WARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260
Modules linked in:
CPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events_power_efficient gc_worker
RIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782
Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b 37 e
Wiz
CVE-2023-53831 Impact, Exploitability, and Mitigation Steps | Wiz
blogs_wiz
CVE-2023-53831 CVE-2023-53831 Impact, Exploitability, and Mitigation Steps | Wiz
## CVE-2023-53831 :
Linux Kernel vulnerability analysis and mitigation
In the Linux kernel, the following vulnerability has been resolved:
net: read sk->sk_family once in sk_mc_loop()
syzbot is playing with IPV6_ADDRFORM quite a lot these days,
and managed to hit the WARN_ON_ONCE(1) in sk_mc_loop()
We have many more similar issues to fix.
WARNING: CPU: 1 PID: 1593 at net/core/sock.c:782 sk_mc_loop+0x165/0x260
Modules linked in:
CPU: 1 PID: 1593 Comm: kworker/1:3 Not tainted 6.1.40-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events_power_efficient gc_worker
RIP: 0010:sk_mc_loop+0x165/0x260 net/core/sock.c:782
Code: 34 1b fd 49 81 c7 18 05 00 00 4c 89 f8 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 ff e8 25 36 6d fd 4d 8b
https://git.kernel.org/stable/c/41f10a4d78fe69d685a3172e6884297f233dcf95https://git.kernel.org/stable/c/7586a66b9c4f1b8a825ea1dfa3a91aad5cc7b89bhttps://git.kernel.org/stable/c/895dc4c47171a20035cdaa8d74c1c1e97f2fc974https://git.kernel.org/stable/c/9036b6342fcdab190d6edce3dd447859c1de90fchttps://git.kernel.org/stable/c/a3e0fdf71bbe031de845e8e08ed7fba49f9c702chttps://git.kernel.org/stable/c/b1f5b890b89cb38a6c0bac91984d56cd69808e8chttps://git.kernel.org/stable/c/e918d0211ffbaf039447334c3460cafee1ce0157https://git.kernel.org/stable/c/ed4e0adfa407ab65dd73b8862ebf2f308a0349d2
2025-12-09
Published