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7.0High

Linux Linux Kernel

CVE-2022-29582

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.

What this means for your business

  • It affects Linux Kernel. It matters if your company, or a supplier that handles your data, runs it.
  • Code showing how to exploit it has been published, but real attacks have not been confirmed.
  • An attacker can use it only with access to the machine itself, with an ordinary user login, and without anyone at your company clicking anything.

What to do

  1. 1Check whether your company or your suppliers run Linux Kernel, and which version. The affected versions are listed further down this page.
  2. 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS
7.0 (v3.1)
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-362
Assigned by
cve@mitre.org

Dates

Published
2022-04-22
Last modified
2026-08-13
Sources
NVD

Affected products

  • Linux Linux Kernel- 5.10.111, 5.11 - 5.15.34, 5.16 - 5.16.20, 5.17 - 5.17.3
  • Debian Debian Linux11.0

As listed in the NVD configuration data. Not a statement about your estate.

References