CVE-2025-22026 Affecting kernel-rt package, versions <0:4.18.0-553.77.1.rt7.418.el8_10


Severity

Recommended
medium

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (10th percentile)

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  • Snyk IDSNYK-ALMALINUX8-KERNELRT-13205996
  • published3 Oct 2025
  • disclosed6 Oct 2025

Introduced: 3 Oct 2025

NewCVE-2025-22026  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-rt to version 0:4.18.0-553.77.1.rt7.418.el8_10 or higher.
This issue was patched in ALSA-2025:16920.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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

nfsd: don't ignore the return code of svc_proc_register()

Currently, nfsd_proc_stat_init() ignores the return value of svc_proc_register(). If the procfile creation fails, then the kernel will WARN when it tries to remove the entry later.

Fix nfsd_proc_stat_init() to return the same type of pointer as svc_proc_register(), and fix up nfsd_net_init() to check that and fail the nfsd_net construction if it occurs.

svc_proc_register() can fail if the dentry can't be allocated, or if an identical dentry already exists. The second case is pretty unlikely in the nfsd_net construction codepath, so if this happens, return -ENOMEM.

CVSS Base Scores

version 3.1