CVE-2026-72108

A flaw was found in the Linux kernel's device-mapper dm thin metadata component. When operations involving metadata snapshots, such as reserving or releasing a snapshot, encounter a commit failure, the system can write an inconsistent 'heldroot' to disk. This can lead to metadata corruption withi...

CVE-2026-72107

A flaw was found in the Linux kernel's device-mapper dm-era component. This vulnerability arises from an incorrect calculation of writeset blocks, which can lead to an out-of-bounds memory access. An attacker could potentially exploit this to cause a denial of service or other undefined behavior...

CVE-2026-72103

A flaw was found in the Linux kernel's device-mapper dm component. A refactoring error caused the caller's thread keyring, which can contain sensitive data like LUKS volume keys, to persist in memory longer than intended. This issue allows a local attacker with administrative privileges to recove...

CVE-2026-72102

A flaw was found in the Linux kernel's device mapper DM subsystem. During certain resume operations, the kernel might attempt to free a memory table that has already been released. This error, known as a double-free vulnerability, can lead to memory corruption. A successful exploit could result i...

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...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100297)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100297 advisory. In the Linux kernel, the following vulnerability has been resolved: dm: clear cloned request bio pointer when last clone bio completes Stale rq-bio values have been...

Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100706)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100706 advisory. In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to regioncount overflow The local variable regioncount in...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-100109)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100109 advisory. In the Linux kernel, the following vulnerability has been resolved: dm cache: fix dirty mapping checking in passthrough mode switching As mentioned in commit...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099774)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099774 advisory. In the Linux kernel, the following vulnerability has been resolved: dm: clear cloned request bio pointer when last clone bio completes Stale rq-bio values have been...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099726)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099726 advisory. In the Linux kernel, the following vulnerability has been resolved: dm log: fix out-of-bounds write due to regioncount overflow The local variable regioncount in...

CVE-2026-74392

In the Linux kernel, the following vulnerability has been resolved: dm: limit target bio polling to one shot dmpollbio is the -pollbio callback for a stacked dm device. The caller only knows about the dm queue, so it may decide to do a spinning poll if it thinks a single queue is being polled...

UBUNTU-CVE-2026-72316

In the Linux kernel, the following vulnerability has been resolved: dm era: fix NULL pointer dereference in metadataopen metadataopen returns NULL when kzallocobj fails, but the caller eractr only checks ISERRmd. Since ISERRNULL returns false, the NULL pointer is treated as a valid result and lat...

CVE-2026-72108

In the Linux kernel, the following vulnerability has been resolved: dm thin metadata: fix metadata snapshot consistency on commit failure reservemetadatasnap and releasemetadatasnap modify the superblock's heldroot directly in the blockmanager's buffer. If the subsequent metadata commit fails, th...

CVE-2026-72102

In the Linux kernel, the following vulnerability has been resolved: dmearlycreate: fix freeing used table on dmresume failure If dmresume fails, the kernel attempts to free table with dmtabledestroy, but the table was already instantiated with dmswaptable. This commit skips the call to...

CVE-2026-72106

In the Linux kernel, the following vulnerability has been resolved: dm-ioctl: fix a possible overflow in listversiongetinfo sizeoftt-version is 12 bytes, but the code writes 16 bytes into the output buffer - info-vers-version0, info-vers-version1, info-vers-version2 and info-vers-next. This can...

CVE-2026-72103

In the Linux kernel, the following vulnerability has been resolved: dm: avoid leaking the caller's thread keyring via the table device file The refactoring in commit a28d893eb327 "md: port block device access to file" accidentally causes the caller's thread keyring to be kept alive long beyond th...

CVE-2026-72102

In the Linux kernel, the following vulnerability has been resolved: dmearlycreate: fix freeing used table on dmresume failure If dmresume fails, the kernel attempts to free table with dmtabledestroy, but the table was already instantiated with dmswaptable. This commit skips the call to...

UBUNTU-CVE-2026-72103

In the Linux kernel, the following vulnerability has been resolved: dm: avoid leaking the caller's thread keyring via the table device file The refactoring in commit a28d893eb327 "md: port block device access to file" accidentally causes the caller's thread keyring to be kept alive long beyond th...

UBUNTU-CVE-2026-72102

In the Linux kernel, the following vulnerability has been resolved: dmearlycreate: fix freeing used table on dmresume failure If dmresume fails, the kernel attempts to free table with dmtabledestroy, but the table was already instantiated with dmswaptable. This commit skips the call to...

CVE-2026-72103

In the Linux kernel, the following vulnerability has been resolved: dm: avoid leaking the caller's thread keyring via the table device file The refactoring in commit a28d893eb327 "md: port block device access to file" accidentally causes the caller's thread keyring to be kept alive long beyond th...