Use After Free Affecting kernel-tools package, versions <0:6.12.0-124.8.1.el10_1


Severity

Recommended
medium

Based on Rocky Linux security rating.

Threat Intelligence

EPSS
0.2% (11th percentile)

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  • Snyk IDSNYK-ROCKY10-KERNELTOOLS-14143634
  • published28 Nov 2025
  • disclosed31 Jan 2025

Introduced: 31 Jan 2025

CVE-2025-21671  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade Rocky-Linux:10 kernel-tools to version 0:6.12.0-124.8.1.el10_1 or higher.
This issue was patched in RLSA-2025:20095.

NVD Description

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

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

zram: fix potential UAF of zram table

If zram_meta_alloc failed early, it frees allocated zram->table without setting it NULL. Which will potentially cause zram_meta_free to access the table if user reset an failed and uninitialized device.

CVSS Base Scores

version 3.1