---
id: CVE-2026-89467
title: 'kernel: power: supply: qcom_battmgr: fix use-after-free (CVE-2026-89467)'
summary: >-
  A flaw was found in the Linux kernel's `qcom_battmgr` component. This flaw is
  a use-after-free vulnerability that occurs because the
  `qcom_battmgr_pdr_notify()` function can queue `enable_work` even after the
  associated `battmgr` object ha…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: vendor
cwe: CWE-825
vendor: Red Hat
product: Red Hat OpenShift Container Platform 4
affected:
  - openshift_container_platform 4
published: '2026-09-11'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T20:12:21+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89467.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89467.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89467'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532106'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89467'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89467'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89467.mbox
  - url: 'https://git.kernel.org/stable/c/06618447029c6dddaa02f6e9528efe5dd49fc329'
  - url: 'https://git.kernel.org/stable/c/49fbcd3da2958159370d25dafbf736e654a4d59b'
  - url: 'https://git.kernel.org/stable/c/4e40befedfc8ed86f44e1f81df92d13c149c9f8d'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00206
epssPercentile: 0.09437
ingestedAt: '2026-09-14T00:35:28.530Z'
---

## Overview

A flaw was found in the Linux kernel's `qcom_battmgr` component. This flaw is a use-after-free vulnerability that occurs because the `qcom_battmgr_pdr_notify()` function can queue `enable_work` even after the associated `battmgr` object has been deallocated. A local attacker could exploit this by triggering the PMIC GLINK service to come up, leading to the `enable_work` accessing freed memory. This could result in a denial of service or potentially lead to arbitrary code execution.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-09-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89467.json)

**kernel: power: supply: qcom_battmgr: fix use-after-free** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-17.

Not affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
- Red Hat OpenShift Container Platform 4

## Remediation

Refer to the advisory for fix availability.