Use After Free Affecting torvalds/linux package, versions [5.0.10-rc1,5.18-rc2)


Severity

Recommended
0.0
medium
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.07% (23rd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-2774706
  • published24 Apr 2022
  • disclosed24 Apr 2022
  • creditDavid Bouman, Jayden Rivers

Introduced: 24 Apr 2022

CVE-2022-29582  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.18-rc2 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free in fs/io_uring.c 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.

CVSS Base Scores

version 3.1