CVE-2026-46107

In the Linux kernel, the following vulnerability has been resolved: dm-thin: fix metadata refcount underflow There's a bug in dm-thin in the function rebalancechildren. If the internal btree node has one entry, the code tries to copy all btree entries from the node's child to the node itself and...

PT-2026-44230

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A bug exists in the rebalance children function within the dm-thin component. When an internal btree node contains a single entry, the system attempts to copy all btree entries from the...

CVE-2026-46023

A flaw was found in the Linux kernel's device mapper dm mirror component. A local user could exploit an integer overflow vulnerability in the createdirtylog function by providing a specially crafted device mapper table string. This could lead to out-of-bounds reads, potentially causing system...

CVE-2026-46023

In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in createdirtylog The argument count calculation in createdirtylog performs argsused = 2 + paramcount before validating against argc. When a user provides a paramcount close to UINTMAX via the devi...

CVE-2026-46023

In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in createdirtylog The argument count calculation in createdirtylog performs argsused = 2 + paramcount before validating against argc. When a user provides a paramcount close to UINTMAX via the devi...

CVE-2026-46023 dm mirror: fix integer overflow in create_dirty_log()

In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in createdirtylog The argument count calculation in createdirtylog performs argsused = 2 + paramcount before validating against argc. When a user provides a paramcount close to UINTMAX via the devi...

EUVD-2026-32404

In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in createdirtylog The argument count calculation in createdirtylog performs argsused = 2 + paramcount before validating against argc. When a user provides a paramcount close to UINTMAX via the devi...

CVE-2026-46023

CVE-2026-46023 is a Linux kernel vulnerability in dm-mirror where create_dirty_log() could bypass argc checks due to an unsigned add of 2 + param_count, allowing an out-of-bounds read in argv when param_count is near UINT_MAX. The root cause is an overflow in argument count calculation before val...

CVE-2026-46023

In the Linux kernel, the following vulnerability has been resolved: dm mirror: fix integer overflow in createdirtylog The argument count calculation in createdirtylog performs argsused = 2 + paramcount before validating against argc. When a user provides a paramcount close to UINTMAX via the devi...

PT-2026-43890

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An integer overflow exists in the create dirty log function within the dm mirror component. The calculation args used = 2 + param count occurs before validating against argc. If a user...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: dm mirror log: The bitsetsize is rounded up to BITSPERLONG. The code in dm-log rounds up bitsetsize to 32 bits. Then, it uses findnextzerobitle on the allocated region. findnextzerobitle accesses the bitmap using unsigned long...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: dm ioctl: This issue is fixed if the listversions function races with the module loading process. listversions will first estimate the required space using the dmtargetiteratelistversiongetneeded, &needed call, and then fill that...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: dm: fixed a NULL pointer race issue when completing IO operations. The dmiodecpending function calls endioacct first, and then decreases the number of pending DMA operations. However, if a task swaps the DM table at the same...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dm mpath: Added the missing dmputdevice call when failing to obtain the scsi dh name. When commit fd81bc5cca8f “scsi: devicehandler: Returning an error pointer in scsidhattachedhandlername”, code was added to fail the parsing of...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dm rq: Do not queue the request to blk-mq during DM suspension. DM uses blk-mq's quiesce/unquiesce to stop/start the device mapper queue. However, blk-mq's unquiesce may be triggered by external events, such as changes in the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dm: A crash occurs if blkallocdisk fails. If blkallocdisk fails, the variable md-disk is set to an error value. cleanupmappeddevice will notice that md-disk is non-NULL and will attempt to access it, resulting in a crash at the...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dm: Do not attempt to queue IO under RCU protection. The dm function looks up the table for IO based on the request type. It assumes that if the request is marked as REQNOWAIT, it’s safe to attempt to submit that IO while under t...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: - dm btree remove: fixed the use of a function after the free operation in rebalancechildren. - Moved the dmtmunlock function to after dmtmdec...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: In the dmstats function, check for and propagate the allocpercpu failure. Check the return value of allocprecpu, and return an error from dmstatsinit if it fails. Update allocdev to fail if dmstatsinit does. Otherwise, a NULL...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15

A denial-of-service issue was detected, possibly due to a recursive locking scenario, which led to a deadlock in the tableclear function in drivers/md/dm-ioctl.c within the Linux Kernel Device Mapper-Multipathing sub-component...