CVE-2025-21745 Affecting kernel-zfcpdump-devel package, versions <0:5.14.0-611.5.1.el9_7


Severity

Recommended
0.0
medium
0
10

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.06% (18th percentile)

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  • Snyk IDSNYK-ALMALINUX9-KERNELZFCPDUMPDEVEL-14065769
  • published20 Nov 2025
  • disclosed11 Nov 2025

Introduced: 11 Nov 2025

NewCVE-2025-21745  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 kernel-zfcpdump-devel 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 package and not the kernel-zfcpdump-devel 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:

blk-cgroup: Fix class @block_class's subsystem refcount leakage

blkcg_fill_root_iostats() iterates over @block_class's devices by class_dev_iter_(init|next)(), but does not end iterating with class_dev_iter_exit(), so causes the class's subsystem refcount leakage.

Fix by ending the iterating with class_dev_iter_exit().

CVSS Base Scores

version 3.1