---
id: CVE-2026-80936
title: 'wifi: mt76: mt7925: cancel mlo_pm_work on stop'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: mt7925: cancel mlo_pm_work on stop

  mt7925 queues mlo_pm_work with a 5 second delay during multi-link
  power-save setup and never cancels it on the stop path…
severity: high
cvss: 7.8
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-763
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 <
    304470333b7f525b23699ea7a7aed3b40ca37ca9
  - >-
    Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 <
    9e20da749ad229a1aa649ece528721b9652f15e1
  - >-
    Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 <
    81faf578320df2dfc682a96baa6e85851dd68b6f
  - Linux 74eb79258bfd5f2ffe6d26a09c898992b2afa1ce
  - Linux >= 6.14.3 < 6.15
  - Linux 6.15
published: '2026-09-11'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:45:19.996Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-80936'
references:
  - url: 'https://git.kernel.org/stable/c/304470333b7f525b23699ea7a7aed3b40ca37ca9'
  - url: 'https://git.kernel.org/stable/c/9e20da749ad229a1aa649ece528721b9652f15e1'
  - url: 'https://git.kernel.org/stable/c/81faf578320df2dfc682a96baa6e85851dd68b6f'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80936.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-80936'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532096'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-80936'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-80936'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80936.mbox
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
  - score-dispute
epss: 0.00173
epssPercentile: 0.06727
scores:
  cna: 7.8
  vendor: 5.5
ingestedAt: '2026-09-14T15:23:07.476Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7925: cancel mlo_pm_work on stop

mt7925 queues mlo_pm_work with a 5 second delay during multi-link
power-save setup and never cancels it on the stop path. If the device is
torn down inside that window, the work outlives the teardown and its timer
fires afterwards, trying to queue onto the workqueue that is already gone:

  workqueue: cannot queue mt7925_mlo_pm_work [mt7925_common] on wq phy0
  WARNING: kernel/workqueue.c:2283 at __queue_work+0x59/0xa0, CPU#1: swapper/1/0
   call_timer_fn+0x2a/0x140
   __run_timers+0x203/0x330
   run_timer_softirq+0x86/0xf0

mt7921 already has its own stop callback, so add one for mt7925 that
cancels the work before calling mt792x_stop(). mt7925_ops backs both the
PCIe and USB drivers, so this covers both.

## Affected

- `Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 < 304470333b7f525b23699ea7a7aed3b40ca37ca9`
- `Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 < 9e20da749ad229a1aa649ece528721b9652f15e1`
- `Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 < 81faf578320df2dfc682a96baa6e85851dd68b6f`
- `Linux 74eb79258bfd5f2ffe6d26a09c898992b2afa1ce`
- `Linux >= 6.14.3 < 6.15`
- `Linux 6.15`

## Remediation

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

## Vendor advisories

- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80936.json)