CVE-2026-68449

The CVE-2026-68449 issue affects the Linux kernel in the sata_dwc_460ex NCQ tag completion path. A hand-rolled bit-scanning loop could loop infinitely when tag_mask contains only high bits (e.g., 0x80000000); the inner loop shifts until overflow to 0, causing an infinite loop in hardirq context w...

CVE-2026-68449 ata: sata_dwc_460ex: fix infinite loop in NCQ tag completion bit-scanning

In the Linux kernel, the following vulnerability has been resolved: ata: satadwc460ex: fix infinite loop in NCQ tag completion bit-scanning The hand-rolled bit-scanning loop in the NCQ completion path has an infinite loop bug. When tagmask has only high bits set e.g. 0x80000000, the inner while...

CVE-2026-68449

In the Linux kernel, the following vulnerability has been resolved: ata: satadwc460ex: fix infinite loop in NCQ tag completion bit-scanning The hand-rolled bit-scanning loop in the NCQ completion path has an infinite loop bug. When tagmask has only high bits set e.g. 0x80000000, the inner while...

CVE-2026-68448

In the Linux kernel, the following vulnerability has been resolved: ovl: check access to copyfilerange source with src mounter creds Commit 5dae222a5ff0c "vfs: allow copyfilerange to copy across devices" allowed filesystems that implement the copyfilerange fop to decide if they want to access...

CVE-2026-68448

In the Linux kernel, the following vulnerability has been resolved: ovl: check access to copyfilerange source with src mounter creds Commit 5dae222a5ff0c "vfs: allow copyfilerange to copy across devices" allowed filesystems that implement the copyfilerange fop to decide if they want to access...

CVE-2026-68448 ovl: check access to copy_file_range source with src mounter creds

In the Linux kernel, the following vulnerability has been resolved: ovl: check access to copyfilerange source with src mounter creds Commit 5dae222a5ff0c "vfs: allow copyfilerange to copy across devices" allowed filesystems that implement the copyfilerange fop to decide if they want to access...

CVE-2026-68448 ovl: check access to copy_file_range source with src mounter creds

In the Linux kernel, the following vulnerability has been resolved: ovl: check access to copyfilerange source with src mounter creds Commit 5dae222a5ff0c "vfs: allow copyfilerange to copy across devices" allowed filesystems that implement the copyfilerange fop to decide if they want to access...

EUVD-2026-57054

In the Linux kernel, the following vulnerability has been resolved: ovl: check access to copyfilerange source with src mounter creds Commit 5dae222a5ff0c "vfs: allow copyfilerange to copy across devices" allowed filesystems that implement the copyfilerange fop to decide if they want to access...

CVE-2026-68448

The CVE-2026-68448 entry concerns the Linux kernel overlayfs copy_file_range path. Previously, cross-filesystem copy could proceed using the destination overlayfs’s mounter credentials, with the source file’s read path checked using the destination’s credentials. This could deny a permitted copy ...

CVE-2026-68447

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size CRIU checkpoint copies the MQD control stack using cphqdcntlstacksize from hardware without bounding it to the allocated BO region. If the HW field is larger than...

CVE-2026-68447

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: clamp v9 CRIU control stack checkpoint copy to BO size CRIU checkpoint copies the MQD control stack using cphqdcntlstacksize from hardware without bounding it to the allocated BO region. If the HW field is larger than...

CVE-2026-68447

CVE-2026-68447 affects the Linux kernel drm/amdkfd path. The vulnerability arises when CRIU checkpoint copies the MQD control stack using cp_hqd_cntl_stack_size from hardware without bounding it to the allocated BO region; if the hardware field exceeds the queue’s control stack allocation, memcpy...

kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath

A flaw was found in the Linux kernel's CIFS Common Internet File System client. When the cifssanitizeprepath function processes specially crafted input, such as an empty string or a string containing only delimiters, it can attempt to read data beyond its allocated memory buffer. This out-of-boun...

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-2026-68446

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...

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-2026-68439

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-2026-68442

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...