UBUNTU-CVE-2026-99108

In the Linux kernel, the following vulnerability has been resolved: ntfs: fix FITRIM range alignment ntfstrimfs aligns the start of a free extent up to the device discard granularity, but derives the discard length by aligning the original extent length down. When the free extent start is not...

UBUNTU-CVE-2026-99111

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix data corruption with concurrent writes and OTRUNC cifsdotruncate flushes dirty pages with filemapwriteandwait and truncates the file on the server, but in the old code both operations ran without holding irwsem o...

UBUNTU-CVE-2026-99105

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix stall when a task enqueued with SCXENQLAST lands back on its CPU's local DSQ With SCXOPSENQLAST, the last runnable task on a CPU is passed to ops.enqueue instead of being kept running. Exiting tasks without...

UBUNTU-CVE-2026-99211

In the Linux kernel, the following vulnerability has been resolved: netlink: reset skb headers before unicast and multicast filtering Socket filters can use SKFNETOFF and SKFLLOFF to read relative to an skb's network and MAC headers. Netlink producers may reserve headroom without resetting those...

UBUNTU-CVE-2026-99133

In the Linux kernel, the following vulnerability has been resolved: net/iucv: fix the recvmsg window update iucvsockrecvmsg sends the HiperSockets-only AFIUCVFLAGWIN without testing the transport, so on a classic z/VM socket iucvsendctrl sizes the skb through a NULL iucv-hsdev. SOMSGLIMIT accepts...

UBUNTU-CVE-2026-99204

In the Linux kernel, the following vulnerability has been resolved: ocfs2/dlm: Protect the recovery list during debugfs reads Recovery participant records must remain alive while debugstateprint walks reco.nodedata and formats their fields. The formatter holds dlm-spinlock, but the recovery...

UBUNTU-CVE-2026-99216

In the Linux kernel, the following vulnerability has been resolved: Drivers: hv: Don't reset VMBus connection state on error/exit paths In two places, current code forces vmbusconnection.connstate to DISCONNECTED prior to calling vmbusdisconnect. But vmbusdisconnect calls vmbusinitiateunload, whi...

UBUNTU-CVE-2026-99101

In the Linux kernel, the following vulnerability has been resolved: ntfs: move attribute payload before shrinking its record ntfsnewattrflags resizes the non-resident attribute record before moving its name and mapping pairs to their shorter-header offsets when compression or sparse state is...

UBUNTU-CVE-2026-99140

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix hist trigger timestamps for buffered events Syzkaller triggered a WARNONONCE!nest warning: WARNING: kernel/trace/ringbuffer.c:821 at ringbuffereventtimestamp Call trace: ringbuffereventtimestamp histfieldtimestamp...

UBUNTU-CVE-2026-99147

In the Linux kernel, the following vulnerability has been resolved: drm/exec: don't immediately add prelocked obj to array of locked objs When a contention is detected the drmexec object grabs a reference to the contended object, unlocks all other objects and pre-locks the contended one before...

UBUNTU-CVE-2026-99171

In the Linux kernel, the following vulnerability has been resolved: ntfs3: free the sbi after a grace period If the "nocase" mount option ntfs3 uses custom hash and dentry compare functions. Both access ntfs3 superblock private information in rcu pathwalk. ntfsputsuper and ntfs3killsb drop the in...

UBUNTU-CVE-2026-99150

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: don't drop the runtime PM reference twice in amdgpugpr amdgpudebugfsgprread drops its runtime PM reference right after reading the wave registers. When copying them to userspace fails, it jumps to the err label, which...

UBUNTU-CVE-2026-99167

In the Linux kernel, the following vulnerability has been resolved: net/sched: fix use-after-free in tcfactionput tcfactionput decrements the reference count before decrementing the binding count. Another thread can free the action between these operations, causing the binding-count update to...

UBUNTU-CVE-2026-99202

In the Linux kernel, the following vulnerability has been resolved: scsi: libsas: Fix SMP IO deadlock during HA resume smpexecutetasksg calls pmruntimegetsync on the host before issuing an SMP command. When that command is itself issued from the HA resume path, the getsync deadlocks: it waits for...

UBUNTU-CVE-2026-99106

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: free the userptr ranges when a CS fails after parserbos amdgpucsparserbos allocates an HMM range for every userptr entry of the BO list and looks up the user pages. Those ranges are only freed when amdgpucsparserbos...

UBUNTU-CVE-2026-99110

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix heap overflow in cifsdosetacl cifssetacl validates ACL size using posixaclxattrsize: 4 + count 8 // 4-byte header + 8 bytes per ACE cifsdosetacl then calls posixacltocifs to write the CIFS wire format into the sa...

UBUNTU-CVE-2026-99112

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsflower: validate mask pointer after nlanext flsetencopt iterates the key's nested tunnel-option attributes with nlaforeachattr while advancing a single mask pointer via nlanext at the bottom of each loop, so the mas...

UBUNTU-CVE-2026-99118

In the Linux kernel, the following vulnerability has been resolved: drm/i915/dmc: Harden DMC firmware payload parsing Validate the conversion of the DMC firmware size from dwords to bytes using checkmuloverflow before calculating the firmware payload size. Reject zero-length payloads and zero MMI...

UBUNTU-CVE-2026-99124

In the Linux kernel, the following vulnerability has been resolved: s390/pci: Fix leak of uninitialized kernel data in SCLP report While reporterrorwrite checks that the provided buffer is at least as large as the header struct, but not that it is large enough to contain the report with the lengt...

UBUNTU-CVE-2026-99143

In the Linux kernel, the following vulnerability has been resolved: tracing: Keep the predicate limit separate from program capacity predicateparse adds two to nrpreds to reserve the terminal TRUE and FALSE entries. It also uses that increased value as the limit for parsed predicates. If the...