Use After Free Affecting kernel-zfcpdump package, versions <0:5.14.0-687.36.1.el9_8


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.21% (12th percentile)

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  • Snyk IDSNYK-ALMALINUX9-KERNELZFCPDUMP-21748331
  • published27 Oct 2026
  • disclosed6 Aug 2026

Introduced: 6 Aug 2026

CVE-2026-31554  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:9 kernel-zfcpdump to version 0:5.14.0-687.36.1.el9_8 or higher.
This issue was patched in ALSA-2026:51035.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump package and not the kernel-zfcpdump 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:

futex: Require sys_futex_requeue() to have identical flags

Nicholas reported that his LLM found it was possible to create a UaF when sys_futex_requeue() is used with different flags. The initial motivation for allowing different flags was the variable sized futex, but since that hasn't been merged (yet), simply mandate the flags are identical, as is the case for the old style sys_futex() requeue operations.

CVSS Base Scores

version 3.1