CVEvulnerability
CVE-2026-53103
5.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-06-24
- Last modified
- 2026-10-21
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-667
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7925: fix potential deadlock in mt7925_roc_abort_sync
roc_abort_sync() can deadlock with roc_work(). roc_work() holds
dev->mt76.mutex, while cancel_work_sync() waits for roc_work()
to finish. If the caller already owns the same mutex, both
sides block and no progress is possible.
This deadlock can occur during station removal when
mt76_sta_state() -> mt76_sta_remove() ->
mt7925_mac_sta_remove_link() -> mt7925_mac_link_sta_remove() ->
mt7925_roc_abort_sync() invokes cancel_work_sync() while
roc_work() is still running and holding dev->mt76.mutex.
This avoids the mutex deadlock and preserves exactly-once
work ownership.
Affected configurations
• linux linux kernel (>= 6.11.2 < 6.18.33)
• linux linux kernel (>= 6.19 < 7.0.10)
Related
Weakness · CWE (1)
- CWE-667 Improper Locking weakness
References
- https://git.kernel.org/stable/c/153bcba36c87a1ba555b57b6c49028d5812f895b Patch
- https://git.kernel.org/stable/c/253cfc33d95ce4a30fd2eca0ff0138603c6c2fcc git.kernel.org
- https://git.kernel.org/stable/c/2d8e0053bca29143ace51e08c980ff076844a4b0 Patch
- https://git.kernel.org/stable/c/dd08ca3f092f4185ece69ce2a835c23198b1628a Patch