---
id: CVE-2022-29582
title: >-
  In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a
  race condition in io_uring timeouts
summary: >-
  In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a
  race condition in io_uring timeouts. This can be triggered by a local user who
  has no access to any user namespace; however, the race condition perhaps can
  on…
severity: high
cvss: 7
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-362
vendor: linux
product: linux_kernel
affected:
  - linux_kernel < 5.10.111
  - 'linux_kernel >= 5.11, < 5.15.34'
  - 'linux_kernel >= 5.16, < 5.16.20'
  - 'linux_kernel >= 5.17, < 5.17.3'
  - debian_linux = 11.0
patched:
  - linux_kernel 5.17.3
published: '2022-04-22'
updated: '2026-08-13'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-29582'
references:
  - url: 'http://www.openwall.com/lists/oss-security/2022/04/22/4'
    label: cve@mitre.org
  - url: 'http://www.openwall.com/lists/oss-security/2022/08/08/3'
    label: cve@mitre.org
  - url: 'http://www.openwall.com/lists/oss-security/2024/04/24/3'
    label: cve@mitre.org
  - url: 'https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3'
    label: cve@mitre.org
  - url: >-
      https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e677edbcabee849bfdd43f1602bccbecf736a646
    label: cve@mitre.org
  - url: 'https://github.com/Ruia-ruia/CVE-2022-29582-Exploit'
    label: cve@mitre.org
  - url: >-
      https://github.com/torvalds/linux/commit/e677edbcabee849bfdd43f1602bccbecf736a646
    label: cve@mitre.org
  - url: 'https://ruia-ruia.github.io/2022/08/05/CVE-2022-29582-io-uring/'
    label: cve@mitre.org
  - url: 'https://www.debian.org/security/2022/dsa-5127'
    label: cve@mitre.org
  - url: 'https://www.openwall.com/lists/oss-security/2022/04/22/3'
    label: cve@mitre.org
  - url: 'http://www.openwall.com/lists/oss-security/2022/04/22/4'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.openwall.com/lists/oss-security/2022/08/08/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'http://www.openwall.com/lists/oss-security/2024/04/24/3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.3'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=e677edbcabee849bfdd43f1602bccbecf736a646
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://github.com/Ruia-ruia/CVE-2022-29582-Exploit'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: >-
      https://github.com/torvalds/linux/commit/e677edbcabee849bfdd43f1602bccbecf736a646
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://ruia-ruia.github.io/2022/08/05/CVE-2022-29582-io-uring/'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.debian.org/security/2022/dsa-5127'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://www.openwall.com/lists/oss-security/2022/04/22/3'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - exploit-available
epss: 0.00773
epssPercentile: 0.53742
ingestedAt: '2026-08-13T20:06:15.034Z'
exploits:
  github: 1
  githubRepos:
    - 'https://github.com/Ruia-ruia/CVE-2022-29582-Exploit'
  checkedAt: '2026-09-25T08:20:40.610Z'
exploitAvailable: true
---

## Overview

In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race condition perhaps can only be exploited infrequently.

## Affected

- `linux_kernel < 5.10.111`
- `linux_kernel >= 5.11, < 5.15.34`
- `linux_kernel >= 5.16, < 5.16.20`
- `linux_kernel >= 5.17, < 5.17.3`
- `debian_linux = 11.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 5.17.3`