CVE-2026-53101

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.

• CWE-667

• https://git.kernel.org/stable/c/35180c772f5e11e2fa4d80d3dfd50906cb6d9646Patch
• https://git.kernel.org/stable/c/91e77840bf13de3add125060cf8b32ca24a52c8cPatch
• https://git.kernel.org/stable/c/b4faaa617af3f4173e64169b0ec1af8f9c5bca10Patch
• https://git.kernel.org/stable/c/d5059e52fd8bc624ec4255c9fa01a266513d126bPatch

Published

Jun 24, 2026

Last Modified

Jul 21, 2026

Status

Analyzed

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