UBUNTU-CVE-2026-89686

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

EUVD-2026-48863

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix infinite loop in layout state revocation findonesbstid skips stids whose scstatus is non-zero, but the SCTYPELAYOUT case in nfsd4revokestates never sets scstatus before calling nfsd4closelayout. The retry loop therefore...

CVE-2026-53399

In the Linux kernel, the following vulnerability has been resolved: nfsd: release layout stid on setlease failure nfs4allocstid publishes the new stid into cl-clstateids via idralloccyclic under cllock before returning to nfsd4alloclayoutstateid. When nfsd4layoutsetlease then fails, the error pat...