Improperly Implemented Security Check for Standard The advisory has been revoked - it doesn't affect any version of package kernel-headers (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-KERNELHEADERS-14441883
- published17 Dec 2025
- disclosed16 Dec 2025
Introduced: 16 Dec 2025
CVE-2025-68242 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-headers package and not the kernel-headers package as distributed by RHEL.
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.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2422769
- https://access.redhat.com/security/cve/CVE-2025-68242
- https://git.kernel.org/stable/c/0e9be902041c6b9f0ed4b72764187eed1067a42f
- https://git.kernel.org/stable/c/b2e4cda71ed062c87573b016d2d956a62f4258ed
- https://git.kernel.org/stable/c/b623390045a81fc559decb9bfeb79319721d3dfb