CVE-2026-53101
Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7921: fix potential deadlock in mt7921_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() -> mt7921_mac_sta_remove() ->
mt7921_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.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 352d966126e66d825244f1185eb9f2d904c83dd4 < 35180c772f5e11e2fa4d80d3dfd50906cb6d9646, 352d966126e66d825244f1185eb9f2d904c83dd4 < 91e77840bf13de3add125060cf8b32ca24a52c8c, 352d966126e66d825244f1185eb9f2d904c83dd4 < d5059e52fd8bc624ec4255c9fa01a266513d126b |
| Linux | Linux | — | 6.9, 0 < 6.9, 6.18.33 ≤ 6.18.*, 7.0.10 ≤ 7.0.* … |
References (3)