CVE-2026-52992

In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfsvalidatebblk Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfsreadmap passes it to kmallocarray0, ... which return...

CVE-2026-52992

In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfsvalidatebblk Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfsreadmap passes it to kmallocarray0, ... which return...

CVE-2026-52992 fs/adfs: validate nzones in adfs_validate_bblk()

In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfsvalidatebblk Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfsreadmap passes it to kmallocarray0, ... which return...

CVE-2026-52992

In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfsvalidatebblk Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfsreadmap passes it to kmallocarray0, ... which return...

CVE-2026-52992

CVE-2026-52992 is a Linux kernel vulnerability affecting ADFS boot-time validation. The issue arises when nzones equals 0 during adfs boot-block validation, leading to an out-of-bounds write (adfs_map_layout writes dm[-1]) via kmalloc_array(0, …). A fix adds the equivalent rejection in adfs_valid...

CVE-2026-52992 fs/adfs: validate nzones in adfs_validate_bblk()

In the Linux kernel, the following vulnerability has been resolved: fs/adfs: validate nzones in adfsvalidatebblk Reject ADFS disc records with a zero zone count during boot block validation, before the disc record is used. When nzones is 0, adfsreadmap passes it to kmallocarray0, ... which return...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2. When reading the name of a symbolic link from a UFS filesystem, grub2 fails to validate the string length provided as input. This lack of validation may lead to a heap out-of-bounds write, causing data integrity issues and potentially allowing an attacker to...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: IMA: Verify that the IMA buffer from the previous kernel is within the addressable RAM. Patch series “Address page fault in imarestoremeasurementlist”, version 3. When the second-stage kernel is booted using kexec with a limiting...

Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: x86/kexec: added a sanity check on the previous kernel’s ima kexec buffer. When the second-stage kernel is booted via kexec with a limiting command line such as “mem=”, the physical range that contains the carried over IMA...

Astra Linux – Vulnerability in grub2

A vulnerability has been identified in the GRUB Grand Unified Bootloader component. This flaw occurs because the bootloader improperly handles string conversions when reading information from a USB device, allowing an attacker to exploit inconsistencies in the length values. A local attacker can...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: i2c: i801: Revert “i2c: i801: replace acpilock with I2C bus lock” This revertment is associated with the commit f707d6b9e7c18f669adfdb443906d46cfbaaa0c1. Under rare circumstances, multiple udev threads may collect information abo...

Astra Linux – Vulnerability in Linux 6.12

In the Linux kernel, the following vulnerability has been resolved: Tracing: Ring-buffer: A fix was made to check the length of events before using them. Check the length of events before adding them for accessing the next index in rbreaddatabuffer. Since this function is used to validate possibl...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2. When reading tar files, grub2 allocates an internal buffer for the file name. However, it fails to properly verify the allocation against possible integer overflows. It’s possible to cause the allocation length to overflow with a specially crafted tar file, resulti...

UBUNTU-CVE-2026-12681

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Google go-attestation. parseEfiSignatureList does not advance the buffer past vendor bytes before reading entries. For hashSHA256SigGUID lists, this allows attacker-controlled vendor header bytes to be appended ...

EUVD-2026-38641

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Google go-attestation. parseEfiSignatureList does not advance the buffer past vendor bytes before reading entries. For hashSHA256SigGUID lists, this allows attacker-controlled vendor header bytes to be appended ...

CVE-2026-12681

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Google go-attestation. parseEfiSignatureList does not advance the buffer past vendor bytes before reading entries. For hashSHA256SigGUID lists, this allows attacker-controlled vendor header bytes to be appended ...

EUVD-2026-38639

Anthropic Claude Desktop Cowork VM image handling confirmed across v1.1348.0 through v1.2278.0, including v1.1348.0, v1.1617.0, and v1.2278.0 validates only file presence and a version marker string before booting rootfs.img, but does not verify image content integrity at time-of-use. A local...

dracut security update

057-115.git20260527.0.1 - Skip the default FIPS logic on special UEK kernels where the FIPS module is linked directly into the kernel. Orabug: 38705580 - Ship Oracle IMA certificate Orabug: 35992862 - Ship 98-integrity.conf, populating initramfs with Oracle IMA certificate Orabug: 35992862 -...

CVE-2026-12681: Improper Validation of Specified Index, Position, or Offset in Input

Improper Validation of Specified Index, Position, or Offset in Input vulnerability in Google go-attestation. parseEfiSignatureList does not advance the buffer past vendor bytes before reading entries. For hashSHA256SigGUID lists, this allows attacker-controlled vendor header bytes to be appended ...

PT-2026-51886

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An out-of-bounds write occurs in the ADFS file system when processing a crafted image with a zero zone count. During boot block validation, if the nzones variable is 0, the adfs read map...