---
id: CVE-2026-89523
title: 'kernel: wifi: mt76: mt7925: cancel pending mlo_pm_work (CVE-2026-89523)'
summary: >-
  A flaw was found in the Linux kernel's MediaTek mt7925 Wi-Fi driver. When the
  device is reset, suspended, or unregistered, a pending work item
  (`mlo_pm_work`) can continue to execute. This can lead to the work item
  accessing memory that ha…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cvssSource: vendor
cwe: CWE-367
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-09-11'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T09:12:04+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89523.json'
references:
  - 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
  - url: 'https://git.kernel.org/stable/c/2889e84282dda147f10b10d94cf0efd90a349c53'
  - url: 'https://git.kernel.org/stable/c/5be6d02837d418bc6c805b5cab1b338de6de9ca7'
  - url: 'https://git.kernel.org/stable/c/c5e073f2fbfd34d22099a50d96f60990799753e2'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
  - score-dispute
epss: 0.00173
epssPercentile: 0.05986
scores:
  vendor: 4.2
  cna: 7.8
ingestedAt: '2026-09-14T15:23:07.475Z'
---

## Overview

A flaw was found in the Linux kernel's MediaTek mt7925 Wi-Fi driver. When the device is reset, suspended, or unregistered, a pending work item (`mlo_pm_work`) can continue to execute. This can lead to the work item accessing memory that has already been freed (a use-after-free vulnerability) or sending commands to unavailable firmware. The most significant consequence is a denial of service, which can cause system instability or crashes.

## 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)

**kernel: wifi: mt76: mt7925: cancel pending mlo_pm_work** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-16.

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

Not affected:

- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat OpenShift Container Platform 4

## Remediation

Affected