CVE-2026-89970
Description
In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: Synchronize timeout work during SQ teardown nvmet_auth_sq_free() cancels auth_expired_work with cancel_delayed_work(). If the work has already started, cancellation does not wait for the callback. Transport teardown can consequently free or reuse the queue containing struct nvmet_sq while nvmet_auth_expired_work() still accesses that SQ. Add a teardown-specific helper that synchronously drains the delayed work before freeing authentication state, and use it from nvmet_sq_destroy(). Keep the non-synchronous helper for in-band authentication state cleanup, where the SQ owner remains alive.
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.
References
- https://git.kernel.org/stable/c/664022fa1c93f4eba09ef5ee02411b9709dd7a93
- https://git.kernel.org/stable/c/7555ddd60af72df2862dd8f9b730a9848577edda
- https://git.kernel.org/stable/c/c17c87bde6d6f5252a6a6f0a94b2430164aa28d5
- https://git.kernel.org/stable/c/c3c126a6142a1335bc8c34a5607c39cf01daf295
- https://git.kernel.org/stable/c/eaa948c0e19b1bb2d93262207bca0c3d19cc3406
- https://git.kernel.org/stable/c/eb4f9127a2b8a152743f1ee597627e2f69cb54fe
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.