CVE-2026-43373
Description
In the Linux kernel, the following vulnerability has been resolved: net: ncsi: fix skb leak in error paths Early return paths in NCSI RX and AEN handlers fail to release the received skb, resulting in a memory leak. Specifically, ncsi_aen_handler() returns on invalid AEN packets without consuming the skb. Similarly, ncsi_rcv_rsp() exits early when failing to resolve the NCSI device, response handler, or request, leaving the skb unfreed.
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 |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 6.1.170-1 |
| debian | bullseye | fixed | 5.10.257-1 |
| debian | forky | fixed | 6.19.10-1 |
| debian | sid | fixed | 6.19.10-1 |
| debian | trixie | fixed | 6.12.85-1 |
| linux-kernel | affected | 5.10.253 | |
| linux-kernel | 7.0 | affected | |
References
- https://git.kernel.org/stable/c/553366c271479c0d571dd1bb5d1bcde4747fb82e
- https://git.kernel.org/stable/c/59962588197863d0d746879f193905c0c6b3df49
- https://git.kernel.org/stable/c/5c3398a54266541610c8d0a7082e654e9ff3e259
- https://git.kernel.org/stable/c/81d6aee32f8f7bbc175c05dbf61f4430bfb88c4a
- https://git.kernel.org/stable/c/87138dde2d6937b12b967f28fe598a7d59000ae4
- https://git.kernel.org/stable/c/9891d7f4f1ede473c54b49776ae07755083eef06
- https://git.kernel.org/stable/c/b70c4e5e711931cdd56e6e905737b72f1e649189
- https://git.kernel.org/stable/c/fef5aa6e3bcf3c8053307642663a63b7362d7552
- https://www.suse.com/security/cve/CVE-2026-43373.html
- https://security-tracker.debian.org/tracker/CVE-2026-43373
CWEs
CWE-401
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.