CVE-2026-53103: Linux kernel · wifi: mt76: mt7925: fix potential deadlock in mt7925_roc_abort_sync
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in dd08ca3f092f4185ece69ce2a835c23198b1628a : update Linux kernel when convenient.
Data as of 26 Oct 2026, 14:05 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 2% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in dd08ca3f092f4185ece69ce2a835c23198b1628a, 253cfc33d95ce4a30fd2eca0ff0138603c6c2fcc, 153bcba36c87a1ba555b57b6c49028d5812f895b +2
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
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.
References
- git.kernel.org/stable/c/253cfc33d95ce4a30fd2eca0ff0138603c6c2fcc (opens in a new tab)
- git.kernel.org/stable/c/153bcba36c87a1ba555b57b6c49028d5812f895b (opens in a new tab)
- git.kernel.org/stable/c/2d8e0053bca29143ace51e08c980ff076844a4b0 (opens in a new tab)
- git.kernel.org/stable/c/dd08ca3f092f4185ece69ce2a835c23198b1628a (opens in a new tab)