CVE-2025-37839 Affecting kernel6.12-debuginfo package, versions <0:6.12.25-32.101.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.05% (15th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL612DEBUGINFO-11475604
  • published5 Aug 2025
  • disclosed9 May 2025

Introduced: 9 May 2025

CVE-2025-37839  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel6.12-debuginfo to version 0:6.12.25-32.101.amzn2023 or higher.
This issue was patched in ALAS2023-2025-995.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel6.12-debuginfo package and not the kernel6.12-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

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

jbd2: remove wrong sb->s_sequence check

Journal emptiness is not determined by sb->s_sequence == 0 but rather by sb->s_start == 0 (which is set a few lines above). Furthermore 0 is a valid transaction ID so the check can spuriously trigger. Remove the invalid WARN_ON.

CVSS Base Scores

version 3.1