Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: dm-integrity: A memory leak was fixed when rechecking the data. The memory allocated for the “checksums” pointer will be leaked if the data is rechecked after a checksum failure because the associated kfree operation will not occ...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dm thin: Use the pmd-root from the last transaction when commit fails Recently, we discovered a problem with a softlockup in the dm thin pool’s btree lookup code due to corrupted metadata. Kernel panic – not syncing: Softlockup:...

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

In the Linux kernel, the following vulnerability has been resolved: DM integrity: Error in the call to kmemcachedestroy in dmintegrityinit. Otherwise, the journaliocache will be leaked if dmregistertarget fails...

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, Linux

In the Linux kernel, the following vulnerabilities have been resolved: - dm raid: fixed the address sanitizer warning in raidresume. There is a KASAN warning in raidresume when running the lvm test lvconvert-raid.sh. The reason for the warning is that mddev-raiddisks is greater than rs-raiddisks,...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: crashdump: Do not log the bytes of the dm-crypt key in readkeyfromuserkeying. When debug logging is enabled, readkeyfromuserkeying logs the first 8 bytes of the key payload, thereby partially exposing the dm-crypt key. Stop loggi...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dm: fixed a use-after-free in dmcleanupzoneddev dmcleanupzoneddev uses a queue, so it must be called before blkcleanupdisk starts its execution: blkcleanupdisk-blkcleanupqueue-kobjectput-blkreleasequeue-...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the drivers/md/dm-table.c file, the dmtablecreate function in the Linux kernel from version 6.7.4 onwards may attempt to allocate more than INTMAX bytes using alloctargets. This can lead to a crash due to a missing check for the struct dmioctl.targetcount structure...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerabilities have been resolved: - dm cache: Fixed a UAF Use-after-Allocation issue in the destroy function. - Dmcache also has the same UAF problem when dmresume and dmdestroy are executed concurrently. Therefore, the timer is canceled again in the destroy...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: dm thin: Fixed a UAF in runtimersoftirq When dmresume and dmdestroy are executed concurrently, it will lead to a UAF, as follows: Bug: KASAN: Use-after-free in runtimers+0x173/0x710 A 8-byte value is written to the address...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: crypto: octeontx2 – removed the CONFIGDMCRYPT check. No issues were found when using the driver with dm-crypt enabled. Therefore, the CONFIGDMCRYPT check in the driver can be removed. This also fixes the NULL pointer dereference...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fixed the potential null dereference issue. The adev-dm.dc pointer can be NULL, and it may be dereferenced in amdgpudmfini without any checks. A NULL pointer check should be added before calling dcdmubsrvdestroy...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: dm-crypt, dm-verity: Disable tasklets Tasklets have an inherent problem with memory corruption. The taskletactioncommon function calls tasklettrylock, then it calls the tasklet callback, and then it calls taskletunlock. If the...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: For dm-raid456 and md/raid456: A deadlock has been fixed in dm-raid456 when I/O operations are concurrent with the reshape operation. For raid456, if reshape is still in progress, then I/O operations across the reshape positio...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: dmbtreeremove: Assign newroot only when the removal succeeds. The removeraw function in dmbtreeremove may fail due to IO read errors e.g., failure to read the content of the origin block during shadowing. Additionally, the value ...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Null checks for adev-dm.dc in amdgpudmfini have been fixed. Since adev-dm.dc in amdgpudmfini might turn out to be NULL before the call to dcenabledmubnotifications, a check is performed beforehand to ensure that...

Astra Linux – Vulnerability in Linux 5.10, Linux

Dm-verity is used to extend the root-of-trust to root file systems. LoadPin builds upon this feature to restrict module/firmware loads to only the trusted root file system. Currently, device-mapper table reloads allow users with root privileges to replace the target with an equivalent dm-linear...

Astra Linux – Vulnerability in Linux 5.10, Linux

In the Linux kernel, the following vulnerability has been resolved: dm ioctl: prevents potential Spectre v1 exploits. It seems that cmd could be a Spectre v1 exploit, as it is provided by a user and used as an array index. This vulnerability prevents the contents of kernel memory from being leake...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the Linux kernel, the following vulnerability has been resolved: dm-crypt: Do not modify the data when using authenticated encryption. It was stated that authenticated encryption could produce invalid tags when the data being encrypted was modified 1. Therefore, this issue can be addressed by...

Astra Linux – Vulnerabilities in Linux, Linux-5.10, Linux-5.15, Linux-6.1

In the drivers/md/dm-ioctl.c file of the Linux kernel, up to version 6.7.1, copyparams may attempt to allocate more than INTMAX bytes, resulting in a crash due to the absence of the paramkernel-datasize check. This issue is related to ctlioctl...