Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tst_run from lwt_seg6local_prog_ops. The syzbot reported that the lwt_seg6 related BPF ops can be invoked via bpf_test_run() without without entering input_action_end_bpf() first. Martin KaFai Lau said that self test for BPF_PROG_TYPE_LWT_SEG6LOCAL probably didn't work since it was introduced in commit 04d4b274e2a ("ipv6: sr: Add seg6local action End.BPF"). The reason is that the per-CPU variable seg6_bpf_srh_states::srh is never assigned in the self test case but each BPF function expects it. Remove test_run for BPF_PROG_TYPE_LWT_SEG6LOCAL.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 004d4b274e2a1a895a0e5dc66158b90a7d463d44 before ea3fae6984ba0f054550e4da22219489c12cd8d4; affected 004d4b274e2a1a895a0e5dc66158b90a7d463d44 before a675524cfbe88fd49c05ff8807a08646983e687c; affected 004d4b274e2a1a895a0e5dc66158b90a7d463d44 before b05c2e25a5c168dbb46b6f7fcb741fd4e4f3b54a; affected 004d4b274e2a1a895a0e5dc66158b90a7d463d44 before e217492f6fa2228ad703ee3006d8fc4e5969fbd4; affected 004d4b274e2a1a895a0e5dc66158b90a7d463d44 before 9cd15511de7c619bbd0f54bb3f28e6e720ded5d6; affected 004d4b274e2a1a895a0e5dc66158b90a7d463d44 before c13fda93aca118b8e5cd202e339046728ee7dddb |
| Linux / Linux | affected 4.18; unaffected 0 before 4.18; unaffected 5.10.269 through 5.10.*; unaffected 5.15.220 through 5.15.*; unaffected 6.1.187 through 6.1.*; unaffected 6.6.156 through 6.6.*; unaffected 6.10.10 through 6.10.*; unaffected 6.11 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/ea3fae6984ba0f054550e4da22219489c12cd8d4
- https://git.kernel.org/stable/c/a675524cfbe88fd49c05ff8807a08646983e687c
- https://git.kernel.org/stable/c/b05c2e25a5c168dbb46b6f7fcb741fd4e4f3b54a
- https://git.kernel.org/stable/c/e217492f6fa2228ad703ee3006d8fc4e5969fbd4
- https://git.kernel.org/stable/c/9cd15511de7c619bbd0f54bb3f28e6e720ded5d6
- https://git.kernel.org/stable/c/c13fda93aca118b8e5cd202e339046728ee7dddb
ADP enrichment
No English description supplied.
No references supplied.