Use After Free Affecting torvalds/linux package, versions [5.10-rc1,5.12-rc2)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3057572
  • published20 Oct 2022
  • disclosed20 Oct 2022
  • creditKyle Zeng

Introduced: 20 Oct 2022

CVE-2022-1786  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.12-rc2 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free in the io_uring subsystem, which can allow local privilege elevation when setting up IORING_SETUP_IOPOLL with more than one task completing submissions.

CVSS Scores

version 3.1