---
id: CVE-2026-89741
title: >-
  kernel: Revert "media: v4l2-dev: fix error handling in
  __video_register_device()" (CVE-2026-89741)
summary: >-
  A flaw was found in the Linux kernel's media subsystem, specifically within
  the v4l2-dev component. This vulnerability arises from incorrect error
  handling in the `__video_register_device()` function. If a device registration
  fails, the sy…
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-1341
vendor: Red Hat
product: Red Hat Enterprise Linux 9
affected:
  - enterprise_linux 10
  - enterprise_linux 9
published: '2026-09-11'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T14:15:15+00:00'
source: CSAF
sourceUrl: 'https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89741.json'
references:
  - url: >-
      https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89741.json
  - url: 'https://access.redhat.com/security/cve/CVE-2026-89741'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2532384'
  - url: 'https://www.cve.org/CVERecord?id=CVE-2026-89741'
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-89741'
  - url: >-
      https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89741.mbox
  - url: 'https://git.kernel.org/stable/c/8b998c171ed875e402e1fd1c5cd619e4ca05e9c1'
  - url: 'https://git.kernel.org/stable/c/3de14b4f681a1b3c6d375d98d9d37a55ebb85349'
  - url: 'https://git.kernel.org/stable/c/8027f82c0f5474ed72448e160ee9778051fa1f49'
  - url: 'https://git.kernel.org/stable/c/2ac009a65d2385e9f0799eaf9d9694a29153a161'
  - url: 'https://git.kernel.org/stable/c/712ca1cf756de2557a116e0df55791bac0c9f99e'
  - url: 'https://git.kernel.org/stable/c/aad08b5f67d2a8116e1a00bce2611c1513b10bce'
  - url: 'https://git.kernel.org/stable/c/ce792b94e03882108019ba996c1a7c4d4e09be2c'
  - url: 'https://git.kernel.org/stable/c/e7600f5cee5de14065f950807931d6e6d40fb2d7'
tags:
  - csaf
  - vex
  - red-hat
  - cve.org
epss: 0.00164
epssPercentile: 0.06017
scores:
  vendor: 7
  cna: 7.8
ingestedAt: '2026-09-14T15:23:07.449Z'
---

## Overview

A flaw was found in the Linux kernel's media subsystem, specifically within the v4l2-dev component. This vulnerability arises from incorrect error handling in the `__video_register_device()` function. If a device registration fails, the system attempts to free the same memory region twice, leading to a double-free condition. This type of flaw can result in system instability, memory corruption, or a denial of service (DoS).

## Vendor advisories

- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-09-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89741.json)

**kernel: Revert "media: v4l2-dev: fix error handling in __video_register_device()"** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-16.

Affected:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9

No fix planned:

- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 9

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