CVE-2026-80938

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7615: avoid waiting for mac work under the mt76 mutex mt7615_suspend() acquired the mt76 mutex and then called cancel_delayed_work_sync() on mac_work. mt7615_mac_work() acquires the same mutex via mt7615_mutex_acquire() at the top of the worker, so if mac_work is already running and blocked on the mutex, the suspend path deadlocks waiting for the work it holds the mutex against. Flush scan_work and mac_work before taking the mutex, matching the suspend paths in mt7921 and mt7925. scan_work only takes the mt76 spinlock, but moving it keeps the sequence consistent. This also keeps mac_work from running over an already suspended HIF, which the previous split (async cancel under the lock, sync cancel after release) would have allowed.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/3114d479f2a1d31b2e6214c395794c6e5715e579
https://git.kernel.org/stable/c/33d29aeb4c0eede92622a7d04ea492b94c30f089
https://git.kernel.org/stable/c/36c73b86a09f0e51c0f81a75c8945b6c5557ff27
https://git.kernel.org/stable/c/44be85af3e1772ffb3332feafedad2a73b22854c
https://git.kernel.org/stable/c/4506e229b2e468b8c64bcf52c50c41a3bf2e633e
https://git.kernel.org/stable/c/bda8324270b1ac91bfba1df8928e0570e29759e8
https://git.kernel.org/stable/c/ef2ec8b537c3a54e241d693bd03016f80d0d4484

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-11 20:18

Updated : 2026-09-14 13:18

NVD link : CVE-2026-80938

Mitre link : CVE-2026-80938

CVE.ORG link : CVE-2026-80938

JSON object : View

Products Affected

No product.

CWE

No CWE.

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