CVE-2026-89485 lockd: pin next file across nlm_inspect_file lock-drop

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

CVE-2026-89485 lockd: pin next file across nlm_inspect_file lock-drop

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

EUVD-2026-76391

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

CVE-2026-89484

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

CVE-2026-89484 lockd: fix NULL dereference on lockowner allocation failure

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

CVE-2026-89484 lockd: fix NULL dereference on lockowner allocation failure

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

CVE-2026-89484

CVE-2026-89484 is a NULL pointer dereference in the Linux kernel's lockd (Network Lock Manager) subsystem. The bug occurs when nlmclnt_find_lockowner() fails to allocate a lockowner, yet nlmclnt_locks_init_private() still installs NLM file lock operations. When the VFS subsequently tears down the...

EUVD-2026-76390

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

PT-2026-90425

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the lockd and nfsd components where nlmsvc ops is published by nfsd lockd init and cleared by nfsd lockd shutdown using plain stores. Because lockd dereferences this...

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...

PT-2026-90201

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the lockd component where the nlm traverse files function pins the current file but fails to pin the saved next pointer across a mutex unlock for nlm inspect file. Thi...

CVE-2026-89484: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclntlocksinitprivate installs NLM file lock operations even when nlmclntfindlockowner fails to allocate a lockowner. nlmclntproc then returns -ENOMEM, but the VFS sti...

PT-2026-96567

In the Linux kernel, the following vulnerability has been resolved: lockd: fix NULL dereference on lockowner allocation failure nlmclnt locks init private installs NLM file lock operations even when nlmclnt find lockowner fails to allocate a lockowner. nlmclnt proc then returns -ENOMEM, but the V...

CVE-2026-89485: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: lockd: pin next file across nlminspectfile lock-drop nlmtraversefiles pins the current file with fcount++ across a mutexunlock for nlminspectfile, but nothing pins the saved next pointer. A concurrent nlmreleasefile can kfree the...

PT-2026-90200

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description A NULL dereference occurs in the lockd component when a lockowner allocation fails. The function nlmclnt locks init private installs NLM file lock operations even if nlmclnt find lockowner...

SUSE CVE-2026-72218

In the Linux kernel, the following vulnerability has been resolved: lockd: Plug nlmfile refcount leak on cached nlmdofopen failure The cached-file path in nlmlookupfile reaches the found: label unconditionally, even when nlmdofopen fails. At that label result and file-fcount are updated before th...

SUSE CVE-2026-72219

In the Linux kernel, the following vulnerability has been resolved: lockd: Plug nlmfile leak when nlmdofopen fails A client can repeatedly drive nlmdofopen failures by presenting file handles that the underlying export rejects. After kzallocobj succeeds in nlmlookupfile, the freshly allocated...

SUSE CVE-2026-74315

In the Linux kernel, the following vulnerability has been resolved: lockd: Avoid hashing uninitialized bytes in nlm4svclookupfile filehash digests the first LOCKDFHHASHSIZE bytes of nfsfh.data when bucketing nlmfiles, independent of fh.size. Commit 3de744ee4e45 "lockd: Use xdrgen XDR functions fo...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: lockd: Avoid hashing uninitialized bytes in nlm4svclookupfile. filehash hashes the first LOCKDFHHASHSIZE bytes of nfsfh.data when bucketizing nlmfiles, regardless of fh.size. Commit 3de744ee4e45 “lockd: Use xdrgen XDR functions f...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: lockd: Other missing fields are set when unlocking files. The vfslockfile function expects that the struct filelock structure is fully initialized by the caller. If the flfile field is NULL after re-exporting NFSv3, an OOP err...