Improper Validation of Specified Quantity in Input Affecting kernel-livepatch-4.14.291-218.527 package, versions <0:1.0-0.amzn2


Severity

Recommended
0.0
high
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (9th percentile)

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  • Snyk IDSNYK-AMZN2-KERNELLIVEPATCH414291218527-11444376
  • published5 Aug 2025
  • disclosed18 Jun 2025

Introduced: 18 Jun 2025

CVE-2022-50020  (opens in a new tab)
CWE-1284  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 kernel-livepatch-4.14.291-218.527 to version 0:1.0-0.amzn2 or higher.
This issue was patched in ALAS2-2022-1838.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-4.14.291-218.527 package and not the kernel-livepatch-4.14.291-218.527 package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

ext4: avoid resizing to a partial cluster size

This patch avoids an attempt to resize the filesystem to an unaligned cluster boundary. An online resize to a size that is not integral to cluster size results in the last iteration attempting to grow the fs by a negative amount, which trips a BUG_ON and leaves the fs with a corrupted in-memory superblock.

CVSS Base Scores

version 3.1