---
id: CVE-2026-89469
title: >-
  kernel: power: supply: lp8727: fix use-after-free in lp8727_release_irq()
  (CVE-2026-89469)
summary: >-
  A flaw was found in the Linux kernel's lp8727 power supply driver. A race
  condition can occur during the release of an interrupt request (IRQ), where a
  delayed work item might be re-armed after the associated memory has been
  freed. This ca…
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 Enterprise Linux 10
affected:
  - enterprise_linux 10
  - enterprise_linux 9
  - openshift_container_platform 4
published: '2026-09-11'
updated: '2026-09-18'
sourceUpdated: '2026-09-18T21:10:50+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89469.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89469.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89469'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532173'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89469'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89469'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89469.mbox
  - url: 'https://git.kernel.org/stable/c/1321a4e6247164312eabc6d07f88572da2ee308c'
  - url: 'https://git.kernel.org/stable/c/dc1dc2837f8e53bde2f16d52a63f4142e21757f1'
  - url: 'https://git.kernel.org/stable/c/035cc6bc4d412dd4302862e8f859b784fcd4653b'
  - url: 'https://git.kernel.org/stable/c/6f0ce09d60a0e4fab6f9ebe8294750481f0c19dd'
  - url: 'https://git.kernel.org/stable/c/80d4e40a85ba524e66c8c748aa7bb19eaf2f69df'
  - url: 'https://git.kernel.org/stable/c/ab6b1ad710bed7931540733ce145493fece8ceef'
  - url: 'https://git.kernel.org/stable/c/6ab3128292df67295de1b2a86f21d89cf6612a7e'
  - url: 'https://git.kernel.org/stable/c/ceb6ac43b0f591722401922ceb958ce2616935e0'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
  - score-dispute
epss: 0.0014
epssPercentile: 0.0369
scores:
  vendor: 5.5
  cna: 8.4
ingestedAt: '2026-09-14T15:23:07.453Z'
---

## Overview

A flaw was found in the Linux kernel's lp8727 power supply driver. A race condition can occur during the release of an interrupt request (IRQ), where a delayed work item might be re-armed after the associated memory has been freed. This can lead to a use-after-free vulnerability, potentially causing memory corruption and system instability.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-09-18 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89469.json)

**kernel: power: supply: lp8727: fix use-after-free in lp8727_release_irq()** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-18.

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.