---
id: CVE-2026-89472
title: >-
  kernel: power: supply: charger-manager: register regulators before exposing
  sysfs (CVE-2026-89472)
summary: >-
  A flaw was found in the Linux kernel's power supply charger-manager component.
  A race condition exists where the system frees charger regulators before their
  corresponding sysfs entries are unregistered. A local attacker can exploit
  this b…
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-364
vendor: Red Hat
product: Red Hat OpenShift Container Platform 4
affected:
  - openshift_container_platform 4
published: '2026-09-11'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T06:24:17+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89472.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89472.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89472'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532356'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89472'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89472'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89472.mbox
  - url: 'https://git.kernel.org/stable/c/6d532582ff3c420598f02945b13184c738cc1581'
  - url: 'https://git.kernel.org/stable/c/86e4fa65368f3bbb506dddba8c9eedc75bd603b2'
  - url: 'https://git.kernel.org/stable/c/af3ce383ba0d0d48957a22ac7058ff5698775898'
  - url: 'https://git.kernel.org/stable/c/c57cb36f76eb7ced45f57af1a890d8f3a6d76342'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
  - score-dispute
epss: 0.0017
epssPercentile: 0.05616
scores:
  vendor: 5.2
  cna: 7.8
ingestedAt: '2026-09-14T15:23:07.475Z'
---

## Overview

A flaw was found in the Linux kernel's power supply charger-manager component. A race condition exists where the system frees charger regulators before their corresponding sysfs entries are unregistered. A local attacker can exploit this by performing a concurrent write to a charger's `externally_control` sysfs attribute, leading to a use-after-free vulnerability. This can result in system instability, crashes, or potentially arbitrary code execution.

## Vendor advisories

- **Red Hat VEX** · Moderate · updated 2026-09-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89472.json)

**kernel: power: supply: charger-manager: register regulators before exposing sysfs** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-16.

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.