Improper Update of Reference Count Affecting kernel6.18-tools-debuginfo package, versions <1:6.18.16-18.222.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.01% (3rd percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL618TOOLSDEBUGINFO-16740802
  • published18 May 2026
  • disclosed6 May 2026

Introduced: 6 May 2026

NewCVE-2026-43179  (opens in a new tab)
CWE-911  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel6.18-tools-debuginfo to version 1:6.18.16-18.222.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1711.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel6.18-tools-debuginfo package and not the kernel6.18-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:

erofs: fix incorrect early exits for invalid metabox-enabled images

Crafted EROFS images with metadata compression enabled can trigger incorrect early returns, leading to folio reference leaks.

However, this does not cause system crashes or other severe issues.

CVSS Base Scores

version 3.1