UBUNTU-CVE-2026-92477

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: debugfs: Reserve space for a string terminator ufssavederrwrite copies user input into a zero-initialized stack buffer and passes it to kstrtoint. A write that fills the entire buffer overwrites its only terminator...

UBUNTU-CVE-2026-92479

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: Avoid NULL CQE dereference when reporting invalid tags The single-doorbell completion path can call ufshcdcomplonecqe with a NULL CQE. If no command is associated with the completion tag, the warning message dereferenc...

UBUNTU-CVE-2026-90164

In the Linux kernel, the following vulnerability has been resolved: smb/server: abort initialization when proc setup fails ksmbdserverinit calls ksmbdprocinit before creating the remaining proc entries and server subsystems. ksmbdprocinit tears down partial state on a procfs or percpucounter...

UBUNTU-CVE-2026-90185

In the Linux kernel, the following vulnerability has been resolved: nullblk: serialize configfs attribute stores with the lock The NULLBDEVICEATTR store takes no lock: applyfn attributes submitqueues, pollqueues get dev-NAME written again after applyfn returns, outside its lock; APPLY=NULL...

CVE-2026-90159

In the Linux kernel, the following vulnerability has been resolved: bpf: Disallow bpfg,setsockopt in cgroup UNIX getname hooks bpfsetsockopt and bpfgetsockopt call sockownedbyme for full sockets, so these helpers expect the socket lock to be held. BPFCGROUPUNIXGETPEERNAME and...

UBUNTU-CVE-2026-90389

In the Linux kernel, the following vulnerability has been resolved: md: scope memallocnoio to allocation critical sections Storing a memallocnoiosave token in mddev-noioflags lets one task save the token and another task restore it. With concurrent suspend sysfs writes, task A can enter...

UBUNTU-CVE-2026-90301

In the Linux kernel, the following vulnerability has been resolved: ocfs2: o2hb: quiesce negotiate handlers and timeout work Heartbeat regions publish struct o2hbregion as the private data for the NEGOTIMEOUT and NEGOAPPROVE o2net handlers as soon as makeitem creates the configfs region. The...

UBUNTU-CVE-2026-90198

In the Linux kernel, the following vulnerability has been resolved: ALSA: core: Fix use-after-free in sndcarddofree A use-after-free was detected in sndcarddofree when a sound card managed by devres is unbound while a user-space application still holds an open file descriptor. For managed cards,...

UBUNTU-CVE-2026-90335

In the Linux kernel, the following vulnerability has been resolved: tty: skip cdevdel when no cdev is registered TTY device registration can fail before a cdev is allocated. Serial core keeps the port so setserial can still use it, and later removal passes the NULL cdev slot to cdevdel, causing a...

UBUNTU-CVE-2026-90211

In the Linux kernel, the following vulnerability has been resolved: bpf, s390: Clear fetch destination on faulting arena atomic Same missing register clear as on riscv64. A RMW atomic on an arena pointer is converted to BPFPROBEATOMIC and gets an exception table entry, but bpfjitprobeatomicpre on...

UBUNTU-CVE-2026-90353

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix ext PHY use-after-free on register error path After mt7915registerextphy succeeded, a failure of the main PHY mt7915initdebugfs or mt7915coredumpregister unwound through freephy2, which called...

CVE-2026-90371

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: fix RXDMADC buffer recycling race The RXDMADC buffers come from the RRO data queues' page pools, which are bound to a different NAPI, so the direct page-pool recycle used here could race the owning NAPI; take the...

UBUNTU-CVE-2026-90338

In the Linux kernel, the following vulnerability has been resolved: serial: amba-pl011: keep console clock enabled for atomic writes pl011consolewriteatomic runs from nbcon atomic context, where sleeping is not allowed. It calls clkenable, which takes the common-clk enablelock. Under PREEMPTRT th...

UBUNTU-CVE-2026-90132

In the Linux kernel, the following vulnerability has been resolved: ntfs: reject unprivileged writes to reserved $LX xattrs Reject setxattr of the reserved $LXUID, $LXGID, $LXMOD and $LXDEV names from userspace unless the caller has CAPSYSADMIN...

UBUNTU-CVE-2026-90104

In the Linux kernel, the following vulnerability has been resolved: NFSv4.1: zero referring call lists before decoding decodecbsequenceargs allocates csarclists with kmallocobjs, so each referringcalllist starts uninitialized. decoderclist assigns rclrefcalls only when rclnrefcalls is nonzero. A...

UBUNTU-CVE-2026-90142

In the Linux kernel, the following vulnerability has been resolved: virtionet: Fix resize of the RX ring When a AFXDP socket is attached, the virtnetrxresize should resize the rq-xskbuffs XSK buffer array. Otherwise, when the size grows, the virtnetrxresume causes a write past the end of the arra...

UBUNTU-CVE-2026-90252

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: free the HCI command when it is cancelled mgmthcicmdsync queues the pending command with a NULL destroy callback, so it is only freed if sendhcicmdsync runs. A cancelled entry is leaked, as hcicmdsynccancelentry...

CVE-2026-90266

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: don't force read-only on transient -EAGAIN from reloc merge On a zoned FS, btrfsdelayedrefsrsvrefill returns -EAGAIN whenever the over-committed metadata plus the zoneunusable bytes exceeds the usable size in a...

CVE-2026-90326

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: fix race between policy activation and blkg destruction When switching an IO scheduler on a block device, blkcgactivatepolicy allocates blkgpolicydata pd for all blkgs attached to the queue. However, blkcgactivatepoli...

UBUNTU-CVE-2026-90117

In the Linux kernel, the following vulnerability has been resolved: ntfs: validate usaofs before preserving the update sequence number When ntfsmftrecordalloc reuses a free mft record it reads the old update sequence number straight from the on-disk record: usn = le16 u8 m + le16tocpum-usaofs; He...