Improper Validation of Specified Type of Input Affecting kernel6.12-tools-debuginfo package, versions <1:6.12.53-69.119.amzn2023


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.04% (11th percentile)

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  • Snyk IDSNYK-AMZN2023-KERNEL612TOOLSDEBUGINFO-14431017
  • published17 Dec 2025
  • disclosed28 Oct 2025

Introduced: 28 Oct 2025

CVE-2025-40080  (opens in a new tab)
CWE-1287  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 kernel6.12-tools-debuginfo to version 1:6.12.53-69.119.amzn2023 or higher.
This issue was patched in ALAS2023-2025-1254.

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:

nbd: restrict sockets to TCP and UDP

Recently, syzbot started to abuse NBD with all kinds of sockets.

Commit cf1b2326b734 ("nbd: verify socket is supported during setup") made sure the socket supported a shutdown() method.

Explicitely accept TCP and UNIX stream sockets.

CVSS Base Scores

version 3.1