Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 352d966126e66d825244f1185eb9f2d904c83dd4 before b4faaa617af3f4173e64169b0ec1af8f9c5bca10; affected 352d966126e66d825244f1185eb9f2d904c83dd4 before 35180c772f5e11e2fa4d80d3dfd50906cb6d9646; affected 352d966126e66d825244f1185eb9f2d904c83dd4 before 91e77840bf13de3add125060cf8b32ca24a52c8c; affected 352d966126e66d825244f1185eb9f2d904c83dd4 before d5059e52fd8bc624ec4255c9fa01a266513d126b |
| Linux / Linux | affected 6.9; unaffected 0 before 6.9; unaffected 6.12.95 through 6.12.*; unaffected 6.18.33 through 6.18.*; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through * |
CWE
No CWE identifiers supplied.