kernel: dm log: fix out-of-bounds write due to region_count overflow

A flaw was found in the Linux kernel's device-mapper log dm log component. A local attacker could exploit an integer overflow vulnerability where a 64-bit value is truncated to 32 bits, leading to undersized memory allocations. This allows for out-of-bounds writes to kernel memory during log...

kernel: xen/privcmd: fix double free via VMA splitting

A flaw was found in the Linux kernel's xen/privcmd module. A local user could exploit this by performing a partial unmapping of a privcmd memory region. This action causes a Virtual Memory Area VMA to split, leading to duplicated internal memory pointers. As a result, the same memory can be freed...

kernel: md/bitmap: fix GPF in write_page caused by resize race

A flaw was found in the Linux kernel's md/bitmap component. This vulnerability involves a use-after-free race condition that occurs during array resize operations. When the bitmapdaemonwork and bitmapresize functions execute concurrently, they can access memory pages that have already been freed...

DEBIAN-CVE-2026-68439

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925mcubsshetlv mt76connacgethephycap routine can theoretically return NULL so check cap pointer before dereferencing it...

DEBIAN-CVE-2026-68445

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Prevent shader BO mappings from becoming writable vc4gemobjectmmap rejects a writable mapping of a validated shader BO, but leaves VMMAYWRITE set. Userspace can map the BO read-only and then turn it writable with mprotec...

DEBIAN-CVE-2026-68442

In the Linux kernel, the following vulnerability has been resolved: btrfs: don't propagate EXTENTFLAGLOGGING to split extent maps When btrfsdropextentmaprange splits an extent map, the new split maps inherit the original map's flags through a local 'flags' variable. Commit f86f7a75e2fb "btrfs: us...

DEBIAN-CVE-2026-68446

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate vmwsurfacemetadata::arraysize This field comes from userspace and should be validated against specific limits depending on which Shader Model SM is available...

CVE-2026-68440

In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix heap overflow when reading module EEPROM txgbereadeepromhostif always copies rounduplength, 4 bytes into the caller buffer, which ethtool allocates with exactly 'length' bytes. A non-4-aligned length therefore...

CVE-2026-68441

In the Linux kernel, the following vulnerability has been resolved: net/sched: Handle TCACTREDIRECT from qdisc filter chains When a TC filter attached to a qdisc filter chain returns TCACTREDIRECT ex: via an eBPF program calling bpfredirect or an actbpf action, the redirect was silently lost i.e ...

DEBIAN-CVE-2026-68440

In the Linux kernel, the following vulnerability has been resolved: net: txgbe: fix heap overflow when reading module EEPROM txgbereadeepromhostif always copies rounduplength, 4 bytes into the caller buffer, which ethtool allocates with exactly 'length' bytes. A non-4-aligned length therefore...

CVE-2026-68446

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate vmwsurfacemetadata::arraysize This field comes from userspace and should be validated against specific limits depending on which Shader Model SM is available...

CVE-2026-68445

In the Linux kernel, the following vulnerability has been resolved: drm/vc4: Prevent shader BO mappings from becoming writable vc4gemobjectmmap rejects a writable mapping of a validated shader BO, but leaves VMMAYWRITE set. Userspace can map the BO read-only and then turn it writable with mprotec...

CVE-2026-68438

In the Linux kernel, the following vulnerability has been resolved: smp: Make CSD lock acquisition atomic for debug mode Commit b0473dcd4b1d "smp: Improve smpcallfunctionsingle CSD-lock diagnostics" changed smpcallfunctionsingle so that, when CSD lock debugging is enabled, async !wait calls use t...

CVE-2026-68439

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7925: fix possible NULL-pointer deref in mt7925mcubsshetlv mt76connacgethephycap routine can theoretically return NULL so check cap pointer before dereferencing it...

DEBIAN-CVE-2026-68432

In the Linux kernel, the following vulnerability has been resolved: vxlan: require CAPNETADMIN in the device netns for changelink A tunnel changelink operates on at most two netns, devnetdev and the sticky underlay netns vxlan-net. They differ once the device is created in or moved to a netns oth...

CVE-2026-68437

In the Linux kernel, the following vulnerability has been resolved: drm/imagination: Fit paired fragment job in the correct CCCB For geometry jobs with a paired fragment job, at the moment, the DRM scheduler's preparejob callback: - checks for internal driver dependencies for the geometry job; -...

CVE-2026-68430

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/gfx8: drop unecessary BUGON There's no need to crash the kernel for this case. cherry picked from commit 4d7c25208ca612b754f3bf39e9f16e725b828891...

CVE-2026-68433

In the Linux kernel, the following vulnerability has been resolved: libceph: bound getversion reply decode to front len handlegetversionreply uses msg-frontalloclen as the decode boundary for MONGETVERSIONREPLY. That is the size of the reused reply buffer, not the number of bytes actually receive...

CVE-2026-68432

In the Linux kernel, the following vulnerability has been resolved: vxlan: require CAPNETADMIN in the device netns for changelink A tunnel changelink operates on at most two netns, devnetdev and the sticky underlay netns vxlan-net. They differ once the device is created in or moved to a netns oth...

CVE-2026-68435

In the Linux kernel, the following vulnerability has been resolved: LoongArch: Fix address space mismatch in kexec command line lookup When searching the loaded segments for the "kexec" command line marker, the kexecload2 path filemode == 0 passes the user-space segment buffer straight to strncmp...