CVE-2026-45848
Description
In the Linux kernel, the following vulnerability has been resolved: apparmor: fix NULL sock in aa_sock_file_perm Deal with the potential that sock and sock-sk can be NULL during socket setup or teardown. This could lead to an oops. The fix for NULL pointer dereference in __unix_needs_revalidation shows this is at least possible for af_unix sockets. While the fix for af_unix sockets applies for newer mediation this is still the fall back path for older af_unix mediation and other sockets, so ensure it is covered.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | fixed | 6.1.170-1 |
| debian | bullseye | fixed | 5.10.257-1 |
| debian | forky | fixed | 6.18.14-1 |
| debian | sid | fixed | 6.18.14-1 |
| debian | trixie | fixed | 6.12.85-1 |
| sles | affected | |
References
- https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067
- https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de
- https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4
- https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486
- https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b
- https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835
- https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317
- https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297
- https://security-tracker.debian.org/tracker/CVE-2026-45848
- https://www.suse.com/security/cve/CVE-2026-45848.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.