CVE-2025-39973 Affecting kernel-doc package, versions <0:6.12.0-124.16.1.el10_1


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.16% (5th percentile)

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  • Snyk IDSNYK-ALMALINUX10-KERNELDOC-22101165
  • published31 Oct 2026
  • disclosed24 Nov 2025

Introduced: 24 Nov 2025

CVE-2025-39973  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:10 kernel-doc to version 0:6.12.0-124.16.1.el10_1 or higher.
This issue was patched in ALSA-2025:22395.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by AlmaLinux. See How to fix? for AlmaLinux:10 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

i40e: add validation for ring_len param

The ring_len parameter provided by the virtual function (VF) is assigned directly to the hardware memory context (HMC) without any validation.

To address this, introduce an upper boundary check for both Tx and Rx queue lengths. The maximum number of descriptors supported by the hardware is 8k-32. Additionally, enforce alignment constraints: Tx rings must be a multiple of 8, and Rx rings must be a multiple of 32.

CVSS Base Scores

version 3.1