CVE-2026-98423
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: don't hand frames to mac80211 while stopping The code checks ->started for frames coming from wmediumd, but the radio can be stopped after the check and before frame delivery, causing mac80211 to hit the WARN_ON(!local->started). Expand the mutex for this case and synchronise against it when the radio is stopped to avoid being able to hit the warning with hwsim. Drop the error print that would've complicated the error path, it only triggers for allocation failures (already noisy) and malformed frames anyway.
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/2f59be7585dc81baa6f36b0035dd6848ea43d318
- https://git.kernel.org/stable/c/5c79ef616aa16af582fb2cb93b0f750975a0004f
- https://git.kernel.org/stable/c/5ce9b2bc9e73213e316a8c72400256a76bf41814
- https://git.kernel.org/stable/c/87840d4a3a21b1c19b867a80e16ba69dff284de2
- https://git.kernel.org/stable/c/c4e4fe330294e3936e0f4e15d6996468f8a45fb2
- https://git.kernel.org/stable/c/d7fa45d8123a7f794b93fc22dbcf19f38dc4d8cb
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.