CVE-2026-53026

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the nfsd4 add rdaccess to wrdeleg function where the nfs4 file get access() function may be incorrectly called to increment the nfs4 file access count if fp->fi fds[O RDONLY] is already set by another thread. This results in an extra fi access count that prevents the corresponding nfsd file from being freed. During the shutdown of the nfs-server service, this condition triggers a bug in kmem cache destroy() due to remaining nfsd file objects on kmem cache shutdown.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.