VulnerabilityPublished 24 Jun 2026Updated 6 Nov 2026

CVE-2026-53101: Linux kernel · wifi: mt76: mt7921: fix potential deadlock in mt7921_roc_abort_sync

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in d5059e52fd8bc624ec4255c9fa01a266513d126b : update Linux kernel when convenient.

Data as of 6 Nov 2026, 16:49 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in d5059e52fd8bc624ec4255c9fa01a266513d126b, b4faaa617af3f4173e64169b0ec1af8f9c5bca10, 35180c772f5e11e2fa4d80d3dfd50906cb6d9646 +1

Exploitation evidence

Disclosed: evidence found.
CVE published 24 Jun 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to d5059e52fd8bc624ec4255c9fa01a266513d126b, b4faaa617af3f4173e64169b0ec1af8f9c5bca10, 35180c772f5e11e2fa4d80d3dfd50906cb6d9646 or 91e77840bf13de3add125060cf8b32ca24a52c8c.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 352d966126e66d825244f1185eb9f2d904c83dd4, < d5059e52fd8bc624ec4255c9fa01a266513d126b	Fixed in d5059e52fd8bc624ec4255c9fa01a266513d126b
LinuxLinux	Affected ≥ 352d966126e66d825244f1185eb9f2d904c83dd4, < b4faaa617af3f4173e64169b0ec1af8f9c5bca10	Fixed in b4faaa617af3f4173e64169b0ec1af8f9c5bca10
LinuxLinux	Affected ≥ 352d966126e66d825244f1185eb9f2d904c83dd4, < 35180c772f5e11e2fa4d80d3dfd50906cb6d9646	Fixed in 35180c772f5e11e2fa4d80d3dfd50906cb6d9646
LinuxLinux	Affected ≥ 352d966126e66d825244f1185eb9f2d904c83dd4, < 91e77840bf13de3add125060cf8b32ca24a52c8c	Fixed in 91e77840bf13de3add125060cf8b32ca24a52c8c
LinuxLinux	Affected =6.9	Fixed in–

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.

References

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