Use After Free Affecting kernel-zfcpdump-devel-matched package, versions <0:5.14.0-611.5.1.el9_7


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-ALMALINUX9-KERNELZFCPDUMPDEVELMATCHED-14064870
  • published20 Nov 2025
  • disclosed11 Nov 2025

Introduced: 11 Nov 2025

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

How to fix?

Upgrade AlmaLinux:9 kernel-zfcpdump-devel-matched to version 0:5.14.0-611.5.1.el9_7 or higher.
This issue was patched in ALSA-2025:20518.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-devel-matched package and not the kernel-zfcpdump-devel-matched package as distributed by AlmaLinux. See How to fix? for AlmaLinux:9 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