CVE-2026-80545

In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Improve EP11 CPRB length and overflow checks The xcrbmsgtotype6ep11cprbmsgx function lacks proper input validation, creating security vulnerabilities: 1. Missing minimum size validation: The ep11cprb structure and...

CVE-2026-80527

In the Linux kernel, the following vulnerability has been resolved: ceph: fix hanging cephgetcaps with stale mdswanted A reader can hang forever in cephgetcaps when the client no longer holds FILERD, but local cap state still says that the capability is already wanted via mdswanted. One way to...

CVE-2026-80554

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Limit the number of channel program segments The processing of channel programs, and the CCWs within them, is done recursively. As such, there is an arbitrary but not architectural limit to the number of CCWs that c...

CVE-2026-80588

In the Linux kernel, the following vulnerability has been resolved: mptcp: reclaim forward-allocated memory on RX path errors After commit 9db5b3cec4ec "mptcp: borrow forward memory from subflow", errors in the receive path prior to queueing skbs into the receive queue do not trigger...

CVE-2026-80553

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Cancel existing workqueues The initialization of the iowork and crwwork workqueues begs the question of whether they should be un-initialized. Add the corresponding cleanup tags in releasedev to ensure work isn't...

CVE-2026-80559

In the Linux kernel, the following vulnerability has been resolved: Input: sur40 - fix input device registration ordering In sur40probe, inputregisterdevice was previously called early before the V4L2 video device and vb2queue components were fully initialized. If userspace opened the input devic...

CVE-2026-80541

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: validate GEMCREATE domain combinations AMDGPUGEMCREATE checked domain bits against AMDGPUGEMDOMAINMASK, but did not validate domain combinations. Userspace could combine CPU|GTT|VRAM with DOORBELL, GDS, GWS, or OA,...

CVE-2026-80521

In the Linux kernel, the following vulnerability has been resolved: afunix: Unlink sccentry in unixdeledge. Kyle Zeng reported that GC could free a dead SCC partially. The scenario is as follows: 1 Create two SCCs: X -. A B ^--' 2 Run the following concurrently: 2-1 send sk-B to sk-B from sk-X 2-...

CVE-2026-80568

In the Linux kernel, the following vulnerability has been resolved: Input: synaptics-rmi4 - block sinput when F54 queue is busy Changing the input diagnostic report type mid-stream changes the report size. Since V4L2 buffers are allocated based on the size at stream start, changing the input whil...

CVE-2026-80535

In the Linux kernel, the following vulnerability has been resolved: xfs: don't double-lock when deleting a self-referential directory LOLLM notices that the dirtree scrubber can detect a directory that refers to itself. In this case, it's not correct for the directory tree repair code to try to...

CVE-2026-80579

In the Linux kernel, the following vulnerability has been resolved: fbdev: clear fbinfo-mode before deleting a videomode fbsetvar can delete a mode from info-modelist when userspace passes FBACTIVATEINVMODE through FBIOPUTVSCREENINFO. The code checks that the mode being deleted is not the current...

CVE-2026-80549

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Move cp cleanup out of not operational The fsmnotoper routine is called when the device has been lost, and is by definition no longer operational. Since this can happen asynchronously from the normal behavior of the...

CVE-2026-80540

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: Fix UVD decode image min size calculation This needs to use pitch instead of width. Also reject pitch over 4096 to avoid overflow. cherry picked from commit b41c8cb12e202b220353332ab87dc01a11f69304...

UBUNTU-CVE-2026-80525

In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc4-topology: Refresh copier IPC payload before widget setup The ipcconfigdata buffer for copier widgets is built once during ipcprepare called from sofpcmsetupconnectedwidgets and cached for reuse. For host copiers...

UBUNTU-CVE-2026-80536

In the Linux kernel, the following vulnerability has been resolved: xfs: bounds-check buffer log item's dirty bitmap xlogrecoverdoregbuffer replays each dirty region described by a buffer log item's bitmap into the buffer read for that item: memcpyxfsbufoffsetbp, uintbit ribufi.iovbase, nbits...

UBUNTU-CVE-2026-80549

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Move cp cleanup out of not operational The fsmnotoper routine is called when the device has been lost, and is by definition no longer operational. Since this can happen asynchronously from the normal behavior of the...

UBUNTU-CVE-2026-80560

In the Linux kernel, the following vulnerability has been resolved: openrisc: signal: do not restore privileged SR bits on sigreturn restoresigcontext copies the whole supervision register SR from the signal frame and only clears SPRSRSM before the value is reloaded into the hardware SR through E...

UBUNTU-CVE-2026-80585

In the Linux kernel, the following vulnerability has been resolved: mptcp: fastopen: only mark MPTFO subflows with SYN data Passive TCP Fast Open accepts a valid-cookie SYN even when it carries no data. In that case the child socket's receive queue is intentionally left empty...

UBUNTU-CVE-2026-80547

In the Linux kernel, the following vulnerability has been resolved: s390/vfioccw: Implement a crw lock Unlike the channelprogram struct, which covers synchronous I/O submissions and asynchronous interrupts, the CRW region relies exclusively on asynchronous events coming from hardware. Implement a...

UBUNTU-CVE-2026-80584

In the Linux kernel, the following vulnerability has been resolved: s390/qeth: validate user buffer length in SNMP and ARP query ioctls qethsnmpcommand and qethl3arpquery allocate a buffer sized by a user-supplied length udatalen without checking a lower bound, then set udataoffset to a fixed...