---
id: CVE-2026-89523
title: 'wifi: mt76: mt7925: cancel pending mlo_pm_work'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  wifi: mt76: mt7925: cancel pending mlo_pm_work

  If the device is reset, suspended or unregistered within that window,
  the pending work can still run and access vif/bss …
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-367
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 <
    5be6d02837d418bc6c805b5cab1b338de6de9ca7
  - >-
    Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 <
    c5e073f2fbfd34d22099a50d96f60990799753e2
  - >-
    Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 <
    2889e84282dda147f10b10d94cf0efd90a349c53
  - Linux 74eb79258bfd5f2ffe6d26a09c898992b2afa1ce
  - Linux >= 6.14.3 < 6.15
  - Linux 6.15
published: '2026-09-11'
updated: '2026-10-19'
sourceUpdated: '2026-10-19T08:48:14.517Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-89523'
references:
  - url: 'https://git.kernel.org/stable/c/5be6d02837d418bc6c805b5cab1b338de6de9ca7'
  - url: 'https://git.kernel.org/stable/c/c5e073f2fbfd34d22099a50d96f60990799753e2'
  - url: 'https://git.kernel.org/stable/c/2889e84282dda147f10b10d94cf0efd90a349c53'
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89523.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89523'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532372'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89523'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89523'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89523.mbox
tags:
  - cve.org
  - csaf
  - vex
  - red-hat
epss: 0.00173
epssPercentile: 0.06806
scores:
  cna: 7.8
  vendor: 7
ingestedAt: '2026-09-14T15:23:07.475Z'
---

## Overview

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

wifi: mt76: mt7925: cancel pending mlo_pm_work

If the device is reset, suspended or unregistered within that window,
the pending work can still run and access vif/bss data that may already
be freed, or send MCU commands while the firmware is not available.

Add cancel_delayed_work_sync(&dev->mlo_pm_work) in all relevant teardown
and suspend paths:

 - mt7925_mac_reset_work()        (chip reset recovery)
 - mt7925e_unregister_device()    (PCIe unbind)
 - mt7925_pci_suspend()           (PCIe bus suspend)
 - mt7925_suspend()               (mac80211 suspend)
 - mt7925u_suspend()              (USB bus / runtime suspend)

This ensures the work is stopped before the device state becomes
invalid.

## Affected

- `Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 < 5be6d02837d418bc6c805b5cab1b338de6de9ca7`
- `Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 < c5e073f2fbfd34d22099a50d96f60990799753e2`
- `Linux >= 276a568832577c81ec90b62dc506bbdc3781ca46 < 2889e84282dda147f10b10d94cf0efd90a349c53`
- `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** · Moderate · 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 2026-09-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89523.json)