CVE-2026-89684: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix cpntf publish race in nfs4initcpstate nfs4allocinitcpntfstate published the new cpntf entry into the s2scpstateids IDR with cstype set in one s2scplock section, then took the lock again to listadd it onto pstid-sccplist...

CVE-2026-89691: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: clear opcnt on compound arg release to prevent OOB read nfsd4releasecompoundargs resets args-ops to the inline iops8 array when the dynamically-allocated ops buffer is freed, but leaves args-opcnt at its original value whic...

CVE-2026-89694: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: check client ownership when cancelling a copy-notify stateid On the OFFLOADCANCEL path clp != NULL, managecpntfstate freed the target cpntf state without checking ownership. The lookup key st-siopaque.soid is allocated...

CVE-2026-89705: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: restore rqstatuscounter to even on all nfsddispatch exit paths nfsddispatch sets rqstatuscounter to an odd value once a request has been decoded, and back to an even value once it has been fully processed, forming a seq-loc...

PT-2026-90392

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description An issue exists in the nfsd component where nfsd4 copy calls nfs4 init copy state before dup copy fields during an async COPY operation. This causes the s2s cp stateids IDR to point to memor...

PT-2026-96575

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix fcache disposal UAF by inlining dispose state into nfsd net nfsd file dispose list delayed defers fput to nfsd service threads via a per-net freeme queue, preventing the shrinker and GC worker from bearing the cost of...

CVE-2026-89695: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: cap decoded POSIX ACL count to bound sort cost nfsd4decodeposixacl reads a u32 entry count off the wire and passes it straight to posixaclalloc and sortpaclrange. The latter is an On^2 bubble sort, so a client-chosen count...

PT-2026-96542

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix stale s2s cp stateids IDR entry for async COPY For an async COPY, nfsd4 copy called nfs4 init copy state before dup copy fields, so the s2s cp stateids IDR was pointed at &u-copy-cp stateid -- memory in the per-rqstp...

CVE-2026-89667: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: close shrinker/GC/fsnotify vs per-net shutdown race in filecache The shrinker, GC worker, and fsnotify/lease callbacks can unhash an nfsdfile from the rhashtable and then call nfsdfiledisposelistdelayed to move it to the...

CVE-2026-89678: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix partial-write detection in nfsddirectwrite nfsddirectwrite walks a list of write segments and, after each vfsiocbiterwrite, tries to detect a short write so the loop can stop before placing the next segment at a wrong...

CVE-2026-89679: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix null dereference in nfsd4setattr for deleg timestamp attrs When a SETATTR request includes FATTR4WORD2TIMEDELEGACCESS or FATTR4WORD2TIMEDELEGMODIFY in the attribute bitmap, nfsd4setattr sets delegattrs=true and calls...

CVE-2026-89693: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: check nfsd4acltoattr return value in nfsd4create nfsd4create stores the return value of nfsd4acltoattr in status, but the switchcreate-crtype block unconditionally overwrites it in every branch. ACL translation errors are...

PT-2026-90427

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the Network File System Daemon NFSD where the nfsd mode check function contains a flawed WARN ON ONCE macro. In scenarios involving NFS reexport, the function may...

PT-2026-96604

In the Linux kernel, the following vulnerability has been resolved: NFSD: remove flawed WARN ON ONCE from nfsd mode check The header for commit e75b23f9e323 "nfsd: check d can lookup in fh verify of directories" details the assumption that justified adding the WARN ON ONCE to nfsd mode check, tha...

CVE-2026-89709: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: lockd, nfsd: RCU-protect nlmsvcops dispatch nlmsvcops is published by nfsdlockdinit and cleared by nfsdlockdshutdown with plain stores, while lockd dereferences it unguarded from dispatch sites in fs/lockd/svcsubs.c. The pointer...

CVE-2026-89711: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: NFSD: remove flawed WARNONONCE from nfsdmodecheck The header for commit e75b23f9e323 "nfsd: check dcanlookup in fhverify of directories" details the assumption that justified adding the WARNONONCE to nfsdmodecheck, that assumptio...

PT-2026-90417

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nfsd component where the xdrgen-based TIME DELEG ACCESS and TIME DELEG MODIFY decode arms store a raw uint32 t nseconds directly into tv nsec without verifying tha...

CVE-2026-89659: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during delegation revoke A delegation stateid holds only a bare pointer to its owning nfs4client and does not keep it alive. The client survives its stateids only because destroyclient drains...

PT-2026-96424

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during delegation revoke A delegation stateid holds only a bare pointer to its owning nfs4 client and does not keep it alive. The client survives its stateids only because destroy client drains...

PT-2026-96469

In the Linux kernel, the following vulnerability has been resolved: nfsd: reject out-of-range nseconds in NFSv3 SETATTR and create ops A client can send an NFSv3 SETATTR, CREATE, MKDIR, SYMLINK or MKNOD carrying an atime or mtime whose nseconds field is out of range. The value is well-formed on t...