Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: nbd: The defer config unlock in nbdgenlconnect has been fixed. There is one use-after-free warning when running NBDCMDCONNECT and NBDCLEARSOCK: nbdgenlconnect: nbdallocandinitconfig // configrefs=1 nbdstartdevice // configrefs...

Astra Linux – Vulnerability in Linux, Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: block: Fixed an incorrect offset in biotruncate The biotruncate function clears the buffer outside of the last block of bdev. However, the current implementation of biotruncate uses the wrong offset for the page. As a result, it...

Astra Linux – Vulnerability in Qemu

A NULL pointer dereference flaw was discovered in the floppy disk emulator of QEMU. This issue occurs when processing read/write ioport commands, especially if the selected floppy drive is not initialized using a block device. This flaw allows a privileged guest user to crash the QEMU process on...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: nullblk: fixed handling of poll request timeouts When performing the iouring benchmark on /dev/nullb0, it’s easy for the kernel to crash if poll requests time out, as reported by David. 1 BUG: Kernel NULL pointer dereferencing...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerabilities have been resolved: nbd: Fixed NULL pointer in flushworkqueue Open /dev/nbdX first; the configrefs will be 1, and the pointers in nbddevice remain null. Disconnect /dev/nbdX, then reference a NULL recvworkq. The protection provided by configrefs ...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: nbd: Fix for the race between nbdallocconfig and module removal When the nbd module is being removed, nbdallocconfig may be called concurrently by nbdgenlconnect. Although trymoduleget will return false, nbdallocconfig does not...

Astra Linux – Vulnerability in Linux

In the Linux kernel, from drivers/block/nbd.c up to version 5.10.12, there is a use-after-free in the nbdaddsocket function. This issue could be triggered by local attackers who have access to the nbd device. The attack occurs during I/O requests at a certain point in device setup, specifically...

Astra Linux – Vulnerability in Linux

In the rbd block device driver located in drivers/block/rbd.c within the Linux kernel, up to version 5.8.9, incomplete permission checks were used for accessing rbd devices. This could have been exploited by local attackers to map or unmap rbd block devices, specifically the CID-f44d04e696fe devi...

CVE-2026-89770

A flaw was found in the iomap component of the Linux kernel. This vulnerability occurs when Protection Information PI verification is disabled on a block device, causing fsbiointegrityalloc to not allocate a bio integrity payload. Subsequently, the iomapbioreadfoliorangesync function attempts to...

EUVD-2026-76682

In the Linux kernel, the following vulnerability has been resolved: iomap: don't free integrity payload that doesn't exist fsbiointegrityalloc might not allocate a bio integrity payload if PI verification is disabled on the block device. Check for that case before calling fsbiointegrityfree in...

PT-2026-96426

In the Linux kernel, the following vulnerability has been resolved: md: do overflow check for sb-bblog shift in super 1 load In super 1 load, sb-bblog shift is an u8 type value loaded from on- disk superblock. It is used for badblocks API badblocks set by the following sequence, 1930...

The vulnerability of the bdev_cache_init() function in the block/bdev.c module, which supports the block-level kernel in the Linux operating system, allows a hacker to cause a service failure.

The vulnerability of the bdevcacheinit function in the block/bdev.c module, which supports the block-level kernel in Linux operating systems, is related to the pointer manipulation. Exploiting this vulnerability could allow an attacker to cause a service failure...

EulerOS 2.0 SP12 : util-linux (EulerOS-SA-2026-3392)

According to the versions of the util-linux packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition...

SUSE CVE-2026-68132

In the Linux kernel, the following vulnerability has been resolved: super: fix emergency thaw deadlock on frozen block devices dothawallcallback calls bdevthaw while holding sb-sumount exclusively. If the block device was frozen via bdevfreeze dropping the last block layer freeze reference calls...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-101965)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-101965 advisory. In the Linux kernel, the following vulnerability has been resolved: partitions: aix: bound the ppcount scan to the ppe array aixpartition reads the physical volume...

The vulnerability of the __req_mod() function in the drivers/block/drbd/drbd_req.c module of the Linux kernel’s block device driver allows a attacker to cause a service failure.

The vulnerability of the reqmod function in the drivers/block/drbd/drbdreq.c file of the Linux kernel’s block device driver involves pointer manipulation. Exploiting this vulnerability could allow a remote attacker to cause service interruptions...

Unity Linux 20.1070e Security Update: util-linux (UTSA-2026-099510)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099510 advisory. A flaw was found in the libblkid library of util-linux. During nested partition probing, the BSD, Minix, Solaris x86, and UnixWare partition probers cache a raw...

CVE-2026-74349

In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject FITRIM ranges shorter than a cluster ocfs2trimmainbm trims the global bitmap in cluster units, but its too-short range validation only checks sb-sblocksize. On filesystems with a cluster size larger than the block...

CVE-2026-74349 ocfs2: reject FITRIM ranges shorter than a cluster

In the Linux kernel, the following vulnerability has been resolved: ocfs2: reject FITRIM ranges shorter than a cluster ocfs2trimmainbm trims the global bitmap in cluster units, but its too-short range validation only checks sb-sblocksize. On filesystems with a cluster size larger than the block...

PT-2026-72286

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference exists in the dm-verity component. This occurs within the dm verity loadpin is bdev trusted function when a device does not have a table. Recommendations At th...