Resource Exhaustion Affecting kernel6.12-tools-debuginfo package, versions <1:6.12.55-74.119.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (10th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL612TOOLSDEBUGINFO-14432521
  • published17 Dec 2025
  • disclosed12 Nov 2025

Introduced: 12 Nov 2025

CVE-2025-40179  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel6.12-tools-debuginfo to version 1:6.12.55-74.119.amzn2023 or higher.
This issue was patched in ALAS2023-2025-1316.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel6.12-tools-debuginfo package and not the kernel6.12-tools-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:

ext4: verify orphan file size is not too big

In principle orphan file can be arbitrarily large. However orphan replay needs to traverse it all and we also pin all its buffers in memory. Thus filesystems with absurdly large orphan files can lead to big amounts of memory consumed. Limit orphan file size to a sane value and also use kvmalloc() for allocating array of block descriptor structures to avoid large order allocations for sane but large orphan files.

CVSS Base Scores

version 3.1