Use of Uninitialized Resource Affecting kernel-livepatch-6.1.175-219.357 package, versions <1:1.0-0.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.12% (3rd percentile)

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  • Snyk IDSNYK-AMZN2023-KERNELLIVEPATCH61175219357-17416016
  • published23 Jun 2026
  • disclosed6 May 2026

Introduced: 6 May 2026

CVE-2026-43089  (opens in a new tab)
CWE-908  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel-livepatch-6.1.175-219.357 to version 1:1.0-0.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1882.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6.1.175-219.357 package and not the kernel-livepatch-6.1.175-219.357 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:

xfrm_user: fix info leak in build_mapping()

struct xfrm_usersa_id has a one-byte padding hole after the proto field, which ends up never getting set to zero before copying out to userspace. Fix that up by zeroing out the whole structure before setting individual variables.

CVSS Base Scores

version 3.1