PT-2026-96546

In the Linux kernel, the following vulnerability has been resolved: NFSD: restart ssc expire umount walk after dropping nfsd ssc lock nfsd4 ssc expire umount walks nn-nfsd ssc mount list with list for each entry safeni, tmp, .... For each expired entry it sets nsui busy = true, drops nfsd ssc loc...

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,...

CVE-2026-89665: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: reject out-of-range useconds in NFSv2 SETATTR/CREATE The NFSv2 sattr decoder converts the wire useconds to nanoseconds in svcxdrdecodesattr: iap-iaatime.tvnsec = tmp2 NSECPERUSEC; tmp2 is a u32 and NSECPERUSEC is 1000, so t...

PT-2026-90424

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 during session teardown. After a DESTROY SESSION operation, the teardown path may free a session while the rpciod still holds an...

PT-2026-96583

In the Linux kernel, the following vulnerability has been resolved: nfsd: gate nfs3 setacl by argp-mask nfsd3 proc setacl calls set posix acl unconditionally for both ACL TYPE ACCESS and ACL TYPE DEFAULT, passing argp-acl access and argp-acl default verbatim. The NFSv3 ACL decoder only populates...

PT-2026-96347

In the Linux kernel, the following vulnerability has been resolved: nfsd: RCU-protect cl cb session to fix use-after-free on session teardown After a DESTROY SESSION the per-session teardown path can free a session while rpciod still holds an inflight callback rpc task that dereferences clp-cl cb...

CVE-2026-89671: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: gate nfs3 setacl by argp-mask nfsd3procsetacl calls setposixacl unconditionally for both ACLTYPEACCESS and ACLTYPEDEFAULT, passing argp-aclaccess and argp-acldefault verbatim. The NFSv3 ACL decoder only populates those...

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-2026-90428

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the nfsd4 ssc expire umount function when iterating through the nn-nfsd ssc mount list. The function drops the nfsd ssc lock to execute mntput on the source...

CVE-2026-89696: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: block non-SAVEFH ops after FOREIGN PUTFH to prevent NULL deref When CONFIGNFSDV42INTERSSC is enabled, nfsd4putfh can return success with fhdentry and fhexport both NULL if fhverify returns nfserrstale and putfh-noverify is...

CVE-2026-89697: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: add fhwantwrite for early-verified SETATTR in nfsdprocsetattr The BOTHTIMESET branch calls fhverify early so setattrprepare can inspect the dentry. This causes nfsdsetattr to skip fhwantwrite, so notifychange runs without a...

CVE-2026-89712: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: NFSD: restart sscexpireumount walk after dropping nfsdssclock nfsd4sscexpireumount walks nn-nfsdsscmountlist with listforeachentrysafeni, tmp, .... For each expired entry it sets nsuibusy = true, drops nfsdssclock to run mntput o...

PT-2026-96581

In the Linux kernel, the following vulnerability has been resolved: nfsd: sample writeback error cursor before async COPY loop nfsd copy file range samples dst-f wb err into "since" after the copy loop, then uses it to detect writeback errors via filemap check wb err once vfs fsync range returns...

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...

PT-2026-96416

In the Linux kernel, the following vulnerability has been resolved: nfsd: add fh want write for early-verified SETATTR in nfsd proc setattr The BOTH TIME SET branch calls fh verify early so setattr prepare can inspect the dentry. This causes nfsd setattr to skip fh want write, so notify change ru...

PT-2026-96457

In the Linux kernel, the following vulnerability has been resolved: nfsd: size fh verify server sockaddr slot by xpt locallen The nfsd fh verify and nfsd fh verify err tracepoints declare the server sockaddr slot sized by xpt remotelen but fill it from xpt local using xpt locallen: TP STRUCT entr...

CVE-2026-89708: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: RCU-protect clcbsession to fix use-after-free on session teardown After a DESTROYSESSION the per-session teardown path can free a session while rpciod still holds an inflight callback rpctask that dereferences...

PT-2026-90418

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nfsd component where the nfsd fh verify and nfsd fh verify err tracepoints incorrectly size the server sockaddr slot using xpt remotelen while filling it from xpt...

PT-2026-96439

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsd file leak on inter-server COPY setup failure When nfsd4 setup inter ssc fails, nfsd4 copy returns nfserr offload denied directly, bypassing the out: label where release copy files would drop the nf dst reference...

CVE-2026-89680: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix nfsdfile leak on inter-server COPY setup failure When nfsd4setupinterssc fails, nfsd4copy returns nfserroffloaddenied directly, bypassing the out: label where releasecopyfiles would drop the nfdst reference taken by...