Incorrect Calculation of Buffer Size Affecting kernel-livepatch-6.12.83-113.160 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-KERNELLIVEPATCH61283113160-16737746
  • published18 May 2026
  • disclosed13 Apr 2026

Introduced: 13 Apr 2026

CVE-2026-31416  (opens in a new tab)
CWE-131  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel-livepatch-6.12.83-113.160 to version 1:1.0-0.amzn2023 or higher.
This issue was patched in ALAS2023-2026-1695.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-livepatch-6.12.83-113.160 package and not the kernel-livepatch-6.12.83-113.160 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:

netfilter: nfnetlink_log: account for netlink header size

This is a followup to an old bug fix: NLMSG_DONE needs to account for the netlink header size, not just the attribute size.

This can result in a WARN splat + drop of the netlink message, but other than this there are no ill effects.

CVSS Base Scores

version 3.1