---
id: CVE-2022-2602
title: 'io_uring UAF, Unix SCM garbage collection'
summary: 'io_uring UAF, Unix SCM garbage collection'
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:H'
cwe:
  - CWE-416
  - CWE-416
vendor: linux
product: linux_kernel
affected:
  - linux_kernel <= 6.0.19
  - ubuntu_linux = 18.04
  - ubuntu_linux = 20.04
  - ubuntu_linux = 22.04
  - ubuntu_linux = 22.10
published: '2024-01-08'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T14:17:21.857'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2022-2602'
references:
  - url: >-
      http://packetstormsecurity.com/files/176533/Linux-Broken-Unix-GC-Interaction-Use-After-Free.html
    label: security@ubuntu.com
  - url: 'https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2602'
    label: security@ubuntu.com
  - url: 'https://ubuntu.com/security/notices/USN-5691-1'
    label: security@ubuntu.com
  - url: 'https://ubuntu.com/security/notices/USN-5692-1'
    label: security@ubuntu.com
  - url: 'https://ubuntu.com/security/notices/USN-5693-1'
    label: security@ubuntu.com
  - url: 'https://ubuntu.com/security/notices/USN-5700-1'
    label: security@ubuntu.com
  - url: 'https://ubuntu.com/security/notices/USN-5752-1'
    label: security@ubuntu.com
  - url: >-
      http://packetstormsecurity.com/files/176533/Linux-Broken-Unix-GC-Interaction-Use-After-Free.html
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-2602'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://ubuntu.com/security/notices/USN-5691-1'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://ubuntu.com/security/notices/USN-5692-1'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://ubuntu.com/security/notices/USN-5693-1'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://ubuntu.com/security/notices/USN-5700-1'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://ubuntu.com/security/notices/USN-5752-1'
    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: 0.01433
epssPercentile: 0.72398
exploits:
  github: 3
  githubRepos:
    - 'https://github.com/LukeGix/CVE-2022-2602'
    - 'https://github.com/kiks7/CVE-2022-2602-Kernel-Exploit'
    - 'https://github.com/th3-5had0w/CVE-2022-2602-Study'
  checkedAt: '2026-10-14T15:36:48.436Z'
exploitAvailable: true
ingestedAt: '2026-10-14T15:36:13.931Z'
---

## Overview

io_uring UAF, Unix SCM garbage collection

## Affected

- `linux_kernel <= 6.0.19`
- `ubuntu_linux = 18.04`
- `ubuntu_linux = 20.04`
- `ubuntu_linux = 22.04`
- `ubuntu_linux = 22.10`

## Remediation

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