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-2026-90392

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-2026-90428

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-2026-81002: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: xdp: fix zero-copy frame layout xdpconvertzctoxdpframe clones an XSK packet into an order-0 page and advertises PAGESIZE as its frame size. It allows the copied frame to occupy the page tail needed by skbsharedinfo and records ze...

PT-2026-96366

In the Linux kernel, the following vulnerability has been resolved: nfsd: check client ownership when cancelling a copy-notify stateid On the OFFLOAD CANCEL path clp != NULL, manage cpntf state freed the target cpntf state without checking ownership. The lookup key st-si opaque.so id is allocated...

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-2026-89694: 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-2026-89680: 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...

PT-2026-90318

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the erofs component during the resizing of global buffers. The variable z erofs gbuf nrpages is only advanced after all global buffers have been grown. If a resize...

PT-2026-96373

In the Linux kernel, the following vulnerability has been resolved: xdp: fix zero-copy frame layout xdp convert zc to xdp frame clones an XSK packet into an order-0 page and advertises PAGE SIZE as its frame size. It allows the copied frame to occupy the page tail needed by skb shared info and...

PT-2026-90212

Name of the Vulnerable Software and Affected Versions Linux kernel version 6.12.94 Description A memory leak exists in the ocfs2 component of the Linux kernel. This issue is triggered when performing a copy file range operation within the same filesystem. The leak occurs during copy-on-write...

PT-2026-90203

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the openvswitch module where the queue userspace packet function incorrectly handles packet socket buffers skb. When an error occurs, the do execute actions function...

PT-2026-90331

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ntfs3 file system where a crafted log record can cause an overflow of the page lcns array. This occurs because the copy lcns loop and the redo shorten loop index...

PT-2026-96333

In the Linux kernel, the following vulnerability has been resolved: nfsd: initialize copy-notify stateid before publishing it nfsd4 copy notify finished initializing the cpntf state after nfs4 alloc init cpntf state had already linked it into the s2s cp stateids IDR and the parent's sc cp list,...

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-2026-89675: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix UAF in async copy cancel and shutdown An async copy could be freed or used after free while a teardown caller OFFLOADCANCEL, nfsd4shutdowncopy, nfsd4cancelcopybysb raced the copy kthread: - findasynccopy bumped...

PT-2026-90379

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free flaw exists in the nfsd copy-notify stateids. The issue occurs because free cpntf state locked only unlinks an entry when its reference count reaches zero. If a revoke...

PT-2026-90132

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the xdp convert zc to xdp frame function where an XSK packet is cloned into an order-0 page and incorrectly advertises PAGE SIZE as its frame size. This allows 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-2026-90422

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the nfsd component where the write verifier is not rotated when an asynchronous COPY writeback fails. During an async COPY operation, the system captures the...