PT-2026-90384

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description An issue exists in the init nfsd function where nfsd debugfs init is executed before nfsd4 init slabs. If the slab allocation fails, the system returns a value that bypasses nfsd debugfs exi...

PT-2026-90386

Name of the Vulnerable Software and Affected Versions Linux Kernel affected versions not specified Description A race condition exists in the nfsd open local fh function where a pointer is loaded using cmpxchg and subsequently passed to nfsd file get without holding an rcu read lock. Because nfsd...

PT-2026-90387

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description In the Linux kernel, the nfsd3 proc setacl function calls set posix acl unconditionally for both ACL TYPE ACCESS and ACL TYPE DEFAULT. Because the NFSv3 ACL decoder only populates the ac...

PT-2026-90388

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description An issue exists in the NFSACL v2 SETACL path where the nfsacld proc setacl function passes pointers to set posix acl unconditionally. Because nfsaclsvc decode setaclargs only populates...

PT-2026-90395

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description A null dereference exists in the nfsd4 setattr function when processing SETATTR requests. If a request includes FATTR4 WORD2 TIME DELEG ACCESS or FATTR4 WORD2 TIME DELEG MODIFY in the...

PT-2026-90396

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description A resource leak occurs in the nfsd component during an inter-server COPY setup failure. When the function nfsd4 setup inter ssc fails, the nfsd4 copy function returns an error directly,...

PT-2026-90397

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description A race condition exists in the nfsd component where the workqueue core clears WORK STRUCT PENDING before the callback is invoked. This causes delayed work pending in the lm breaker timedout...

PT-2026-90402

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description A race condition exists in the NFS server nfsd during delegation revocation. The function nfsd4 alloc layout stateid reads fp-fi deleg file without holding the fi lock when the parent statei...

PT-2026-90403

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nfsd file do acquire function where it may use a file that has not been opened. This occurs because the -atomic open handler can return success without opening the...

PT-2026-90411

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nfsd4 decode posixacl function where a u32 entry count is read from the wire and passed directly to posix acl alloc and sort pacl range. Because sort pacl range...

PT-2026-90412

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description A NULL pointer dereference exists in the nfsd kthread when CONFIG NFSD V4 2 INTER SSC is enabled. This occurs because nfsd4 putfh can return success with fh dentry and fh export both being...

PT-2026-90413

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 proc setattr function where the BOTH TIME SET branch triggers an early call to fh verify. This sequence allows setattr prepare to inspect the dentry but causes nf...

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...

PT-2026-90390

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description An issue exists in the nfsd4 ff encode layoutget function regarding XDR buffer size calculation. Errors in calculating the length of the file handle fh len, user ID uid, group ID gid, and...

PT-2026-90394

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nfsd direct write function where partial-write detection is flawed. The function iterates through write segments and uses vfs iocb iter write to perform writes...

PT-2026-90398

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free issue exists in the nfsd component. The function nfsd file dispose list delayed defers fput to nfsd service threads using a per-net freeme queue stored in a separately...

PT-2026-90399

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description A dentry reference leak occurs in the nfsd set fh dentry function during V4ROOT export filehandle lookup. When the NFS3 FHSIZE or NFS FHSIZE switch cases detect NFSEXP V4ROOT and proceed to...

PT-2026-90400

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the nfsd component during the publication of cpntf entries in nfs4 init cp state. The function nfs4 alloc init cpntf state publishes a new entry into the s2s c...

PT-2026-90401

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.2.6-1.1 Description A clock domain mismatch exists in the clients still reclaiming function. The function calculates a deadline using nn-boot time based on CLOCK REALTIME but compares it against ktime get...

PT-2026-90408

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 the nfsd break one deleg function sets the NFSD4 CALLBACK RUNNING bit to serialize recall work before calling nfsd4 run cb to queue the recall. If...