---
id: CVE-2022-41218
title: >-
  In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there
  is a use-after-free caused by refcount races, affecting dvb_demux_open and
  dvb_dmxdev_release.
summary: >-
  In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there
  is a use-after-free caused by refcount races, affecting dvb_demux_open and
  dvb_dmxdev_release.
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'
cwe:
  - CWE-416
  - CWE-416
vendor: linux
product: linux_kernel
affected:
  - linux_kernel <= 5.19.10
  - debian_linux = 11.0
published: '2022-09-21'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T18:17:05.880'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-41218'
references:
  - url: 'http://www.openwall.com/lists/oss-security/2022/09/23/4'
    label: cve@mitre.org
  - url: 'http://www.openwall.com/lists/oss-security/2022/09/24/1'
    label: cve@mitre.org
  - url: 'http://www.openwall.com/lists/oss-security/2022/09/24/2'
    label: cve@mitre.org
  - url: >-
      https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fd3d91ab1c6ab0628fe642dd570b56302c30a792
    label: cve@mitre.org
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/dvb-core/dmxdev.c
    label: cve@mitre.org
  - url: 'https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html'
    label: cve@mitre.org
  - url: 'https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html'
    label: cve@mitre.org
  - url: 'https://lore.kernel.org/all/20220908132754.30532-1-tiwai%40suse.de/'
    label: cve@mitre.org
  - url: 'https://www.debian.org/security/2023/dsa-5324'
    label: cve@mitre.org
  - url: 'http://www.openwall.com/lists/oss-security/2022/09/23/4'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.openwall.com/lists/oss-security/2022/09/24/1'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.openwall.com/lists/oss-security/2022/09/24/2'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=fd3d91ab1c6ab0628fe642dd570b56302c30a792
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/drivers/media/dvb-core/dmxdev.c
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2023/03/msg00000.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2023/05/msg00006.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lore.kernel.org/all/20220908132754.30532-1-tiwai%40suse.de/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2023/dsa-5324'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-794697.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - exploit-available
epss: 0.00812
epssPercentile: 0.56036
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/Tobey123/CVE-2022-41218'
  checkedAt: '2026-10-14T18:48:13.825Z'
exploitAvailable: true
ingestedAt: '2026-10-14T18:47:39.272Z'
---

## Overview

In drivers/media/dvb-core/dmxdev.c in the Linux kernel through 5.19.10, there is a use-after-free caused by refcount races, affecting dvb_demux_open and dvb_dmxdev_release.

## Affected

- `linux_kernel <= 5.19.10`
- `debian_linux = 11.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.