CVE-2026-53103

wifi: mt76: mt7925: fix potential deadlock in mt7925_roc_abort_sync

MEDIUM
5.5
CVSS Score
Published: June 24, 2026 at 04:30 PM UTC
Updated: October 21, 2026 at 01:19 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: fix potential deadlock in mt7925_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() -> mt7925_mac_sta_remove_link() -> mt7925_mac_link_sta_remove() -> mt7925_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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.11.2 ≤ v < 6.18.336.19 ≤ v < 7.0.1045064d19fd3af6aeb0887b35b5564927980cf1506.11.26.12978d1756b3ae1b857826eb7ed8181f3c5180dce9
Vendor states this is fixed in 153bcba36c87a1ba555b57b6c49028d5812f895b (fixed)
Vendor states this is fixed in 2d8e0053bca29143ace51e08c980ff076844a4b0 (fixed)
Vendor states this is fixed in dd08ca3f092f4185ece69ce2a835c23198b1628a (fixed)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.12.114 (unaffected)
Vendor states this is fixed in 6.18.33 (unaffected)
Vendor states this is fixed in 7.0.10 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-667

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