PT-2026-51920 · Linux · Linux
Published
2026-06-24
·
Updated
2026-06-24
·
CVE-2026-53026
None
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In the Linux kernel, the following vulnerability has been resolved:
NFSD: fix nfs4 file access extra count in nfsd4 add rdaccess to wrdeleg
In nfsd4 add rdaccess to wrdeleg, if fp->fi fds[O RDONLY] is already
set by another thread, nfs4 file get access should not be called
to increment the nfs4 file access count since that was already done
by the thread that added READ access to the file. The extra fi access
count in nfs4 file can prevent the corresponding nfsd file from being
freed.
When stopping nfs-server service, these extra access counts trigger a
BUG in kmem cache destroy() that shows nfsd file object remaining on
kmem cache shutdown.
This problem can be reproduced by running the Git project's test
suite over NFS.
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Related Identifiers
Affected Products
Linux