---
id: CVE-2026-53101
title: |-
  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()
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_…
severity: none
published: '2026-06-24'
updated: '2026-07-04'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-53101'
references:
  - url: 'https://git.kernel.org/stable/c/35180c772f5e11e2fa4d80d3dfd50906cb6d9646'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/91e77840bf13de3add125060cf8b32ca24a52c8c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/b4faaa617af3f4173e64169b0ec1af8f9c5bca10'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d5059e52fd8bc624ec4255c9fa01a266513d126b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00125
epssPercentile: 0.01873
ingestedAt: '2026-07-04T12:56:09.617Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.