CVE-2022-49877

Description

In the Linux kernel, the following vulnerability has been resolved: bpf, sockmap: Fix the sk->sk_forward_alloc warning of sk_stream_kill_queues When running `test_sockmap` selftests, the following warning appears: WARNING: CPU: 2 PID: 197 at net/core/stream.c:205 sk_stream_kill_queues+0xd3/0xf0 Call Trace: <TASK> inet_csk_destroy_sock+0x55/0x110 tcp_rcv_state_process+0xd28/0x1380 ? tcp_v4_do_rcv+0x77/0x2c0 tcp_v4_do_rcv+0x77/0x2c0 __release_sock+0x106/0x130 __tcp_close+0x1a7/0x4e0 tcp_close+0x20/0x70 inet_release+0x3c/0x80 __sock_release+0x3a/0xb0 sock_close+0x14/0x20 __fput+0xa3/0x260 task_work_run+0x59/0xb0 exit_to_user_mode_prepare+0x1b3/0x1c0 syscall_exit_to_user_mode+0x19/0x50 do_syscall_64+0x48/0x90 entry_SYSCALL_64_after_hwframe+0x44/0xae The root case is in commit 84472b436e76 ("bpf, sockmap: Fix more uncharged while msg has more_data"), where I used msg->sg.size to replace the tosend, causing breakage: if (msg->apply_bytes && msg->apply_bytes < tosend) tosend = psock->apply_bytes;

Reserved 2025-05-01 | Published 2025-05-01 | Updated 2025-05-04 | Assigner Linux

Product status

Default status
unaffected

244ce90c8d0bd10ebf957da02c6f3fcd5d920bdf before d975bec1eaeb52341acc9273db79ddb078220399
affected

7b812a369e6416ab06d83cdd39d8e3f752781dd0 before cc21dc48a78cc9e5af9a4d039cd456446a6e73ff
affected

168ff181f5b6e7fce684c98a30d35da1dbf8f82a before 95adbd2ac8de82e43fd6b347e7e1b47f74dc1abb
affected

84472b436e760ba439e1969a9e3c5ae7c86de39d before 14e8bc3bf7bd6af64d7538a0684c8238d96cdfd7
affected

84472b436e760ba439e1969a9e3c5ae7c86de39d before 8ec95b94716a1e4d126edc3fb2bc426a717e2dba
affected

87d532d41ef937e16f61b3d2094f3a2ac49be365
affected

abb4caa477a5450817d2aa1198edce66450aecf8
affected

Default status
affected

5.18
affected

Any version before 5.18
unaffected

5.4.225
unaffected

5.10.155
unaffected

5.15.79
unaffected

6.0.9
unaffected

6.1
unaffected

References

git.kernel.org/...c/d975bec1eaeb52341acc9273db79ddb078220399

git.kernel.org/...c/cc21dc48a78cc9e5af9a4d039cd456446a6e73ff

git.kernel.org/...c/95adbd2ac8de82e43fd6b347e7e1b47f74dc1abb

git.kernel.org/...c/14e8bc3bf7bd6af64d7538a0684c8238d96cdfd7

git.kernel.org/...c/8ec95b94716a1e4d126edc3fb2bc426a717e2dba

cve.org (CVE-2022-49877)

nvd.nist.gov (CVE-2022-49877)

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