Riskcovery

CVE-2026-53101

wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync

State
Published
Severity
Not scored
Published
Jun 24, 2026
Updated
Jul 4, 2026
Reserved
Jun 9, 2026

Read the record on cve.org

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 352d966126e66d825244f1185eb9f2d904c83dd4 to before b4faaa617af3f4173e64169b0ec1af8f9c5bca10Affected
  • 352d966126e66d825244f1185eb9f2d904c83dd4 to before 35180c772f5e11e2fa4d80d3dfd50906cb6d9646Affected
  • 352d966126e66d825244f1185eb9f2d904c83dd4 to before 91e77840bf13de3add125060cf8b32ca24a52c8cAffected
  • 352d966126e66d825244f1185eb9f2d904c83dd4 to before d5059e52fd8bc624ec4255c9fa01a266513d126bAffected
LinuxLinux
  • 6.9Affected
  • before 6.9Not affected
  • 6.12.95 through 6.12.*Not affected
  • 6.18.33 through 6.18.*Not affected
  • 7.0.10 through 7.0.*Not affected
  • 7.1 and laterNot affected

References

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