CVE-2026-98196
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: brcmsmac: fix UAF in brcms_free_timer() brcms_free_timer() calls brcms_del_timer() which uses the non-synchronous cancel_delayed_work() to cancel the timer's underlying delayed work. If the work callback (_brcms_timer) is already running, cancel_delayed_work() returns false without waiting, and brcms_free_timer() proceeds to kfree(t) while the callback still accesses t through container_of(). Add an explicit cancel_delayed_work_sync() after brcms_del_timer() to guarantee that any in-flight callback has completed before the timer structure is freed.
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/050d2486e8ed2c0a23b87249ccd23e8072721391
- https://git.kernel.org/stable/c/10eeb0b29fd7f52487c9ae573e8d79c210a0095d
- https://git.kernel.org/stable/c/1edb3ddd261e973a4d577c0547e63bfa25a8170d
- https://git.kernel.org/stable/c/1eeca1d5e0920fbdad6449768fd2d4364e714180
- https://git.kernel.org/stable/c/2a4841ff0b74b495cddd31ae324e922217fc2f13
- https://git.kernel.org/stable/c/74acccc928851f69184271832d690607877122af
- https://git.kernel.org/stable/c/777cb6bba59e875b16a1d8897a483a5fecfcd5d2
- https://git.kernel.org/stable/c/856dabd5f2617efb23c043be9e1b22a9e6e97c41
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.