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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2024-46754

bpf: Remove tst_run from lwt_seg6local_prog_ops.

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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 products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 004d4b274e2a1a895a0e5dc66158b90a7d463d44 to < ea3fae6984ba0f054550e4da22219489c12cd8d4affected
  • 004d4b274e2a1a895a0e5dc66158b90a7d463d44 to < a675524cfbe88fd49c05ff8807a08646983e687caffected
  • 004d4b274e2a1a895a0e5dc66158b90a7d463d44 to < b05c2e25a5c168dbb46b6f7fcb741fd4e4f3b54aaffected
  • 004d4b274e2a1a895a0e5dc66158b90a7d463d44 to < e217492f6fa2228ad703ee3006d8fc4e5969fbd4affected
  • 004d4b274e2a1a895a0e5dc66158b90a7d463d44 to < 9cd15511de7c619bbd0f54bb3f28e6e720ded5d6affected
  • 004d4b274e2a1a895a0e5dc66158b90a7d463d44 to < c13fda93aca118b8e5cd202e339046728ee7dddbaffected

Linux Linux

Default version status: affected

  • 4.18affected
  • 0 to < 4.18unaffected
  • 5.10.269 to ≤ 5.10.*unaffected
  • 5.15.220 to ≤ 5.15.*unaffected
  • 6.1.187 to ≤ 6.1.*unaffected
  • 6.6.156 to ≤ 6.6.*unaffected
  • 6.10.10 to ≤ 6.10.*unaffected
  • 6.11 to ≤ *unaffected

References