CVE-2026-99144

In the Linux kernel, the following vulnerability has been resolved: schedext: Fix use-after-free of a destroyed user DSQ by a deferred reenqueue A deferred reenqueue can read a freed user DSQ. The request stays on its CPU's deferred list until rundeferred takes it, and the RCU callback that frees...

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...

CVE-2026-99148: Linux: In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: keep the eviction fence until the last…

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: keep the eviction fence until the last handle is closed amdgpugemobjectclose detaches the user queue eviction fence from the BO before it checks bova-refcount, so closing any handle of a BO removes the fence, even whe...

PT-2026-128120

In the Linux kernel, the following vulnerability has been resolved: page pool: keep frag offset aligned for odd-sized requests page pool alloc frag netmem rounds the requested fragment size with size = ALIGNsize, dma get cache alignment; dma get cache alignment returns 1 unless the architecture...

CVE-2026-99159

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Fix the sub-buffer array base in rbmetasubbufidx On a persistent ring buffer, rbmetasubbufidx can return an index one sub-buffer too high. rbsetupidsmetapage then fills subbufids shifted by one and leaves subbufids0...

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...

CVE-2026-99129

In the Linux kernel, the following vulnerability has been resolved: selinux: fix BPF token permission checks Avoid multiple lookups of the bpffs creator SID using the token's file descriptor when the same information can be found via the resolved path/dentry in selinuxbpftokencreate or the token...

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...

CVE-2026-99175: Linux: In the Linux kernel, the following vulnerability has been resolved: fsnotify: prevent mark additions during connector…

In the Linux kernel, the following vulnerability has been resolved: fsnotify: prevent mark additions during connector teardown fsnotifydestroymarks keeps a reference to its current mark while it drops conn-lock to destroy the mark. This stabilizes the forward-walk cursor, but does not prevent a n...

UBUNTU-CVE-2026-99184

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: search every core slot when a core is removed rocketremove decrements rdev-numcores for each core it removes, while findcorefordev searches slots 0 to numcores - 1. Unbinding the cores in the order they were bound...

CVE-2026-99187: Linux: In the Linux kernel, the following vulnerability has been resolved: perf: Fix perf_pmu_migrate_context() leaving events…

In the Linux kernel, the following vulnerability has been resolved: perf: Fix perfpmumigratecontext leaving events behind perfpmuremove walks the group leaders of a CPU and PMU with perfeventgroupsforcpupmu, removing each one as it goes. perfremovefromcontext takes the leader out of the groups...

CVE-2026-99154: Linux: In the Linux kernel, the following vulnerability has been resolved: scsi: libiscsi: Reject a negative task index from…

In the Linux kernel, the following vulnerability has been resolved: scsi: libiscsi: Reject a negative task index from parsepduitt A transport that implements parsepduitt hands libiscsi an index taken from the PDU, and both lookups bound it from above only: if i = session-cmdsmax i and cmdsmax are...

PT-2026-128171

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Don't consume async PF flags on a kernel PF in NMI context An async PF "page not present" event arrives through the PF vector, and its reason sits in the per-CPU apf reason.flags until kvm handle async pf reads and clear...

UBUNTU-CVE-2026-99142

In the Linux kernel, the following vulnerability has been resolved: tracing: Check operator stack capacity before pushing predicateparse uses the first operator stack entry before processing any opening parentheses. A push then increments top before writing. The existing check still permits that...

CVE-2026-99152: Linux: In the Linux kernel, the following vulnerability has been resolved: scsi: libiscsi: Validate the task named by a…

In the Linux kernel, the following vulnerability has been resolved: scsi: libiscsi: Validate the task named by a management response iscsicompletepdu fetches the task for five response types from one place and checks only that the index resolved: case ISCSIOPLOGOUTRSP: case ISCSIOPLOGINRSP: case...

PT-2026-128166

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.161 Linux kernel versions prior to 6.11 Description A use-after-free issue exists in the tracefs eventfs revalidation process. A local user can trigger reads of freed kernel memory by racing path lookups with...

CVE-2026-99210: Linux: In the Linux kernel, the following vulnerability has been resolved: accel/rocket: clear rdev on device init failure…

In the Linux kernel, the following vulnerability has been resolved: accel/rocket: clear rdev on device init failure rocketprobe stores the return value from rocketdeviceinit in the file-scoped rdev pointer before checking whether it is an error pointer. If rocketdeviceinit fails, rdev is left as ...

CVE-2026-99138

In the Linux kernel, the following vulnerability has been resolved: tcp: fix use-after-free in dotcpgetsockoptTCPCCINFO dotcpgetsockopt reads icsk-icskcaops and dereferences the getinfo function pointer without rcureadlock. With BPF structops congestion control, caops can point to dynamically...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 7.0. It stems from repeated lookups of the bpffs creator SID within SELinux’s BPF token permission checks; this may lead to a TOCTOU issue when users modify the token file descriptor passed to the kernel...

Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 6.19. It stems from a naming conflict wherein the loop counter idx declared in foreachinsnprefix shares the same name as a local variable in getsegregoverrideidx, causing the variable to be shadowed. This prevents termination of loops under ...