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CVE-2026-53101 (GCVE-0-2026-53101)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-07-04 11:50
VLAI
Title
wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync
Summary
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.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < b4faaa617af3f4173e64169b0ec1af8f9c5bca10 (git)
Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < 35180c772f5e11e2fa4d80d3dfd50906cb6d9646 (git)
Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < 91e77840bf13de3add125060cf8b32ca24a52c8c (git)
Affected: 352d966126e66d825244f1185eb9f2d904c83dd4 , < d5059e52fd8bc624ec4255c9fa01a266513d126b (git)
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Linux Linux Affected: 6.9
Unaffected: 0 , < 6.9 (semver)
Unaffected: 6.12.95 , ≤ 6.12.* (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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