Use After Free Affecting torvalds/linux package, versions [,6.1-rc7)


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
0.01% (1st percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3247466
  • published25 Jan 2023
  • disclosed22 Nov 2022
  • creditUnknown

Introduced: 22 Nov 2022

CVE-2023-0468  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.1-rc7 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free through io_uring/poll.c in io_poll_check_events in the io_uring subcomponent, due to a race condition of poll_refs.

CVSS Base Scores

version 3.1