Improperly Implemented Security Check for Standard Affecting kernel-rt-64k package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.02% (6th percentile)

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  • Snyk IDSNYK-RHEL10-KERNELRT64K-14441911
  • published17 Dec 2025
  • disclosed16 Dec 2025

Introduced: 16 Dec 2025

NewCVE-2025-68242  (opens in a new tab)
CWE-358  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 kernel-rt-64k.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-64k package and not the kernel-rt-64k package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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

NFS: Fix LTP test failures when timestamps are delegated

The utimes01 and utime06 tests fail when delegated timestamps are enabled, specifically in subtests that modify the atime and mtime fields using the 'nobody' user ID.

The problem can be reproduced as follow:

echo "/media *(rw,no_root_squash,sync)" >> /etc/exports

export -ra

mount -o rw,nfsvers=4.2 127.0.0.1:/media /tmpdir

cd /opt/ltp

./runltp -d /tmpdir -s utimes01

./runltp -d /tmpdir -s utime06

This issue occurs because nfs_setattr does not verify the inode's UID against the caller's fsuid when delegated timestamps are permitted for the inode.

This patch adds the UID check and if it does not match then the request is sent to the server for permission checking.

CVSS Base Scores

version 3.1