Linux Distros Unpatched Vulnerability : CVE-2026-89568

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - kho: fix size calculation in khopreservedmemoryreserve khopreservedmemoryreserve calculates the size of a preservation by doing 1 order + PAGESHIFT. Since the '...

CVE-2026-89568

A flaw was found in the Linux kernel. The khopreservedmemoryreserve function, responsible for reserving memory, incorrectly calculates the size of these reservations. This issue arises because it uses a 32-bit integer for bit shifting, which limits the maximum reservation size to 2 Gigabytes GiB...

CVE-2026-89568

In the Linux kernel, the following vulnerability has been resolved: kho: fix size calculation in khopreservedmemoryreserve khopreservedmemoryreserve calculates the size of a preservation by doing 1 order + PAGESHIFT. Since the '1' is a 32-bit integer, it can only be shifted by 31. That is, it wil...

UBUNTU-CVE-2026-89568

In the Linux kernel, the following vulnerability has been resolved: kho: fix size calculation in khopreservedmemoryreserve khopreservedmemoryreserve calculates the size of a preservation by doing 1 order + PAGESHIFT. Since the '1' is a 32-bit integer, it can only be shifted by 31. That is, it wil...

CVE-2026-89568

In the Linux kernel, the following vulnerability has been resolved: kho: fix size calculation in khopreservedmemoryreserve khopreservedmemoryreserve calculates the size of a preservation by doing 1 order + PAGESHIFT. Since the '1' is a 32-bit integer, it can only be shifted by 31. That is, it wil...

CVE-2026-89568

In the Linux kernel , the function kho_preserved_memory_reserve() contains a size-calculation bug. It computes the size of a memory preservation using 1 <

CVE-2026-89568 kho: fix size calculation in kho_preserved_memory_reserve()

In the Linux kernel, the following vulnerability has been resolved: kho: fix size calculation in khopreservedmemoryreserve khopreservedmemoryreserve calculates the size of a preservation by doing 1 order + PAGESHIFT. Since the '1' is a 32-bit integer, it can only be shifted by 31. That is, it wil...

CVE-2026-89568

In the Linux kernel, the following vulnerability has been resolved: kho: fix size calculation in khopreservedmemoryreserve khopreservedmemoryreserve calculates the size of a preservation by doing 1 order + PAGESHIFT. Since the '1' is a 32-bit integer, it can only be shifted by 31. That is, it wil...

Astra Linux – Vulnerability found in Linux 5.15, Linux 5.10

In the Linux kernel, the following vulnerabilities have been resolved: lib/fonts: Fixed undefined behavior in bit shifting for getdefaultfont. Shifting a signed 32-bit value by 31 bits is undefined; therefore, the significant bit was changed to unsigned. The UBSAN warning “calltrace” is as follow...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net: mdio: fixed an undefined behavior in bit shifting for mdiobusregister. Shifting a signed 32-bit value by 31 bits is undefined; therefore, the significant bit was changed to unsigned. The UBSAN warning appears as follows:...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: capabilities: Defined behavior in bit shifting for CAPTOMASK was fixed. Shifting a signed 32-bit value by 31 bits is undefined; therefore, the significant bit was changed to unsigned. The UBSAN warning during call tracing is a...

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

In the Linux kernel, the following vulnerability has been resolved: comedi: pcl812: Fix bit shift out of bounds When checking for a supported IRQ number, the following test is used: c if 1 options1 & board-irqbits However, it-optionsi is an unchecked int value from userspace, so the shift amount...

The vulnerability of the Linux operating system’s kernel, related to a single-bit offset error, allows attackers to trigger a service failure.

The vulnerability of the Linux operating system’s kernel is related to a single-shift error. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2026-64006

The CVE affects Linux kernel netfilter nf_tables. A dst corruption in the same-register operation occurred during shift (lshift/rshift) when src and dst pointed to the same memory location: the carry for the next iteration was read from the dst (modified) instead of the original src. The fix cach...

EUVD-2026-45440

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Improve validation and configuration of ACR masks Currently there are several issues on the user space ACR mask validation and configuration. - The validation for user space ACR mask attr.config2 is incomplete,...

OESA-2026-2796 nilfs-utils security update

Userspace utilities for creating and mounting NILFS v2 filesystems. Security Fixes: NILFS utilities through 2.3.0, fixed in commit 26efb5d, nilfssbisvalid function fails to validate slogblocksize field in NILFS2 superblock before bit-shift operations. Attackers supplying crafted NILFS2 images...

AZL-90200 CVE-2026-55392 affecting package nilfs-utils 2.2.11-4

NILFS utilities through 2.3.0, fixed in commit 26efb5d, nilfssbisvalid function fails to validate slogblocksize field in NILFS2 superblock before bit-shift operations. Attackers supplying crafted NILFS2 images trigger undefined behavior through oversized shifts or out-of-memory conditions, crashi...

CVE-2026-55392 NILFS utilities - Undefined Behavior and Out-of-Memory via Unvalidated s_log_block_size

NILFS utilities through 2.3.0, fixed in commit 26efb5d, nilfssbisvalid function fails to validate slogblocksize field in NILFS2 superblock before bit-shift operations. Attackers supplying crafted NILFS2 images trigger undefined behavior through oversized shifts or out-of-memory conditions, crashi...

Unity Linux 20.1050e Security Update: kernel (UTSA-2026-021623)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-021623 advisory. In the Linux kernel, the following vulnerability has been resolved: lib/fonts: fix undefined behavior in bit shift for getdefaultfont Shifting signed 32-bit value by...

Unity Linux 20.1060e / 20.1070e Security Update: ImageMagick (UTSA-2026-017620)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-017620 advisory. A flaw was found in ImageMagick in MagickCore/quantum-export.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined...