CVE-2026-89647 ceph: do not repeat ceph_trim_dentries() if no progress possible

In the Linux kernel, the following vulnerability has been resolved: ceph: do not repeat cephtrimdentries if no progress possible cephcapreclaimwork re-queues itself for as long as cephtrimdentries returns -EAGAIN, which happens whenever a lease walk exhausts its nrtoscan budget. This creates a bu...

CVE-2026-89647

CVE-2026-89647 affects the Linux kernel's Ceph file system . The function ceph_cap_reclaim_work() enters a busy loop by re-queuing itself whenever ceph_trim_dentries() returns -EAGAIN, which occurs when a lease walk exhausts its scan budget with no cap pressure and all leases still valid. The dir...

CVE-2026-89647

In the Linux kernel, the following vulnerability has been resolved: ceph: do not repeat cephtrimdentries if no progress possible cephcapreclaimwork re-queues itself for as long as cephtrimdentries returns -EAGAIN, which happens whenever a lease walk exhausts its nrtoscan budget. This creates a bu...

EUVD-2026-76557

In the Linux kernel, the following vulnerability has been resolved: btrfs: drop recovered reloc root refs on recovery failure During relocation recovery, each fs root gets a reference to its relocation root. If loading or adding a later root fails, or if the first transaction commit fails,...

EUVD-2026-76558

In the Linux kernel, the following vulnerability has been resolved: ceph: fix leaked inode reference on writeback abort at umount cephdirtyfolio takes a wrbuffer claim on each newly dirtied folio: it bumps iwrbufferref taking an ihold on the 0-1 transition and attaches the snapcontext to...

CVE-2026-89642

In the Linux kernel, the following vulnerability has been resolved: cifs: call pagecacheisizeextended in cifssetsize when extending cifssetsize calls truncatepagecache but skips pagecacheisizeextended on extension. truncatesetsize shows the correct pattern: isizewriteinode, newsize; if newsize...

CVE-2026-89641 cifs: clear tcon after cifsFileInfo_put() in cifs_file_set_size()

In the Linux kernel, the following vulnerability has been resolved: cifs: clear tcon after cifsFileInfoput in cifsfilesetsize When the else branch of cifsfilesetsize finds a writable file handle via findwritablefile, it borrows tcon and server from the handle's tlink, attempts the handle-based...

CVE-2026-89639

This vulnerability affects the Linux kernel's CIFS (Common Internet File System) implementation. When a file is opened with O_TRUNC , the function cifs_do_truncate() is invoked without holding i_rwsem, preventing it from performing a proper fscache cookie resize . As a result, stale cached data c...

CVE-2026-89639 cifs: use cifs_invalidate_cache() in cifs_do_truncate() for O_TRUNC

In the Linux kernel, the following vulnerability has been resolved: cifs: use cifsinvalidatecache in cifsdotruncate for OTRUNC cifsdotruncate is invoked from cifsopen without irwsem, so it cannot use cifsresizefilelocked to perform a proper fscache cookie resize. Instead, add cifsinvalidatecache...

CVE-2026-89617 fs/ntfs3: validate dirty page table on log replay

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: validate dirty page table on log replay Each DIRPAGEENTRY ends in a pagelcns array whose length is the on-disk lcnsfollow field. checkrstbl validates the table bookkeeping but never checks that this array fits in the...

CVE-2026-89615 fs/ntfs3: bound page_lcns[] index by the log record

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: bound pagelcns index by the log record The copylcns loop and the redo shorten loop index pagelcns at j + i, where i runs up to the log record's lcnsfollow. That count is checked only against the record's own length, not...

CVE-2026-89613 ntfs: reject invalid empty mapping pairs

In the Linux kernel, the following vulnerability has been resolved: ntfs: reject invalid empty mapping pairs Reject an attribute with empty mapping pairs if it has inconsistent highest VCN and size...

EUVD-2026-76526

In the Linux kernel, the following vulnerability has been resolved: ntfs: bound the free-cluster bitmap scan to the volume vol-lcnemptybitsperpage is sized from vol-nrclusters at mount, but ntfsclusteralloc bounds its scan of that array by the size of $Bitmap. Those are independent on-disk...

CVE-2026-89614 ntfs: bound the free-cluster bitmap scan to the volume

In the Linux kernel, the following vulnerability has been resolved: ntfs: bound the free-cluster bitmap scan to the volume vol-lcnemptybitsperpage is sized from vol-nrclusters at mount, but ntfsclusteralloc bounds its scan of that array by the size of $Bitmap. Those are independent on-disk...

CVE-2026-89613 ntfs: reject invalid empty mapping pairs

In the Linux kernel, the following vulnerability has been resolved: ntfs: reject invalid empty mapping pairs Reject an attribute with empty mapping pairs if it has inconsistent highest VCN and size...

CVE-2026-89614

CVE-2026-89614 affects the Linux kernel's NTFS file system driver . The flaw is in ntfs_cluster_alloc(), which bounds its free-cluster bitmap scan by the size of the on-disk $Bitmap rather than by the volume's actual cluster count (nr_clusters). Because these are independent quantities, a special...

CVE-2026-89612 ntfs: reject invalid MFT LCNs from boot sector

In the Linux kernel, the following vulnerability has been resolved: ntfs: reject invalid MFT LCNs from boot sector The NTFS boot sector stores the MFT and MFTMirr locations as unsigned 64-bit LCNs, but parsentfsbootsector decoded them into an s64. A crafted high-bit value could therefore become...

CVE-2026-89612 ntfs: reject invalid MFT LCNs from boot sector

In the Linux kernel, the following vulnerability has been resolved: ntfs: reject invalid MFT LCNs from boot sector The NTFS boot sector stores the MFT and MFTMirr locations as unsigned 64-bit LCNs, but parsentfsbootsector decoded them into an s64. A crafted high-bit value could therefore become...

EUVD-2026-76523

In the Linux kernel, the following vulnerability has been resolved: ntfs: validate non-resident attribute offsets ntfsattrupdatemeta shifts the attribute name when converting between non-sparse and sparse attributes. Converting to sparse also adds the compressedsize field before the name and...

CVE-2026-89611

In the Linux kernel, the following vulnerability has been resolved: ntfs: validate non-resident attribute offsets ntfsattrupdatemeta shifts the attribute name when converting between non-sparse and sparse attributes. Converting to sparse also adds the compressedsize field before the name and...