UBUNTU-CVE-2026-89485

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...

UBUNTU-CVE-2026-89661

In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent post-shutdown use-after-free in unlockfilesystem Writing a filesystem path to /proc/fs/nfsd/unlockfilesystem runs nfsd4cancelcopybysb before nfsdmutex is held and before the handler confirms that nn-nfsdserv is set...

UBUNTU-CVE-2026-89711

In the Linux kernel, the following vulnerability has been resolved: NFSD: remove flawed WARNONONCE from nfsdmodecheck The header for commit e75b23f9e323 "nfsd: check dcanlookup in fhverify of directories" details the assumption that justified adding the WARNONONCE to nfsdmodecheck, that assumptio...

UBUNTU-CVE-2026-80962

In the Linux kernel, the following vulnerability has been resolved: dm-pcache: validate geometry fields from on-disk cacheinfo cachesegsinit iterates cacheinfo-nsegs times indexing cache-segments, which is sized to the cache device geometry, and getsegid takes each segment id from the on-media...

UBUNTU-CVE-2026-89682

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix fcachedisposal UAF by inlining dispose state into nfsdnet nfsdfiledisposelistdelayed defers fput to nfsd service threads via a per-net freeme queue, preventing the shrinker and GC worker from bearing the cost of closing...

UBUNTU-CVE-2026-89696

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...

UBUNTU-CVE-2026-89665

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...

CVE-2026-89664

In the Linux kernel, the following vulnerability has been resolved: nfsd: release OPEN-decoded posix ACLs via oprelease nfsd4decodecreatehow4 calls nfsd4decodefattr4, which allocates refcounted struct posixacl objects via posixaclalloc and stores them in open-oppacl and open-opdpacl. These pointe...

CVE-2026-89624

In the Linux kernel, the following vulnerability has been resolved: HID: universal-pidff: stop the device when force-feedback init fails universalpidffprobe starts the device with hidhwstart and then, if force-feedback initialisation fails, returns the error through a label that only does "return...

CVE-2026-89608

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: pass packet set buffer size to parser ecryptfsparsepacketset receives a pointer into the file header, but it calculates the remaining packet buffer size from PAGESIZE - 8. For version 1 headers the packet set starts lat...

CVE-2026-89583

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: eir: Fix OOB read in eirgetservicedata eirgetservicedata walks the advertising data for a Service Data field with a matching UUID. On a mismatch it advances: eir += dlen; eirlen -= dlen; eirgetdata reports dlen as the...

CVE-2026-89592

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: fix NULL dereference and integer overflow in rocketjobpush rocketjobpush allocates a temporary array to hold all input and output GEM object pointers: bos = kvmallocarrayjob-inbocount + job-outbocount, sizeofvoid ,...

CVE-2026-89712

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...

CVE-2026-89715

In the Linux kernel, the following vulnerability has been resolved: NFS/localio: fix ref leak on nfsuuidaddfile failure When nfsuuidaddfile races with nfsuuidput tearing down uuid-net, it returns -ENXIO without publishing nfl-nfsuuid via rcuassignpointer. nfsopenlocalfh then enters its error bran...

CVE-2026-89686

In the Linux kernel, the following vulnerability has been resolved: nfsd: fix BUGON in nfsd4alloclayoutstateid on racing delegation revoke nfsd4alloclayoutstateid reads fp-fidelegfile without holding filock when the parent stateid is a delegation. A concurrent delegation revoke via the laundromat...

CVE-2026-89635

In the Linux kernel, the following vulnerability has been resolved: ksmbd: only rebind the reopened file's own oplock on durable reconnect ksmbdreopendurablefd walks the inode's moplist and rebinds every detached oplock to the reconnecting session: listforeachentryrcuop, &ci-moplist, opentry,...

UBUNTU-CVE-2026-89649

In the Linux kernel, the following vulnerability has been resolved: ceph: bound xattr value length in buildxattrs buildxattrs decodes the MDS-supplied xattr blob one attribute at a time. For each attribute it reads a 32-bit name length, advances past the name bytes, reads a 32-bit value length,...

UBUNTU-CVE-2026-89605

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: release message context on send failure ecryptfssendmessagelocked moves a message context from the free list to the allocated list before sending the request to the userspace daemon. If ecryptfssendmiscdev fails, the...

CVE-2026-89637

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF and buffer leak in cifschecktrans2 for malformed secondary T2 When a valid primary TRANSACT2 response has been received mid-respbuf set, mid-multiRsp true and a subsequent secondary response causes...

CVE-2026-80952

In the Linux kernel, the following vulnerability has been resolved: i3c: master: Fix info leak and UAF in device unregister path i3cmasterunregisteri3cdevs clears i3cdev-dev-desc before calling deviceunregister. During deviceunregister, devicedel emits a KOBJREMOVE uevent and unbinds the driver...