CVE-2026-90315 PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers

In the Linux kernel, the following vulnerability has been resolved: PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers Currently, the legacy I/O and memory sysfs handlers do not check securitylockeddownLOCKDOWNPCIACCESS, leaving the legacyio and legacymem files unprotected when the...

CVE-2026-90315

CVE-2026-90315 affects the Linux kernel's PCI/sysfs subsystem. The legacy I/O and memory handlers (pci_write_legacy_io() , pci_mmap_legacy_mem() , pci_mmap_legacy_io() ) fail to check security_locked_down(LOCKDOWN_PCI_ACCESS) , leaving the legacy_io and legacy_mem sysfs files unprotected during k...

EUVD-2026-81976

In the Linux kernel, the following vulnerability has been resolved: PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers Currently, the legacy I/O and memory sysfs handlers do not check securitylockeddownLOCKDOWNPCIACCESS, leaving the legacyio and legacymem files unprotected when the...

Astra Linux – Vulnerability in Linux

In the Linux kernel, the following vulnerability has been resolved: perf/core: Fixed the unconditional use of the securitylockeddown function. Currently, the lockdown state is queried unconditionally, even though its result is only used if the PERFSAMPLEREGSINTR bit is set in attr.sampletype. Whi...

Astra Linux – Vulnerability found in Linux 5.10, Linux 5.15

In the Linux kernel, if the IMA appraisal method is used with the “imaappraiselog” boot parameter, lockdown can be circumvented using kexec on any machine when Secure Boot is disabled or unavailable. IMA prevents the “imaappraiselog” parameter from being set during boot, but this does not cover...

Astra Linux – Vulnerability in grub2

A flaw was discovered in grub2 in versions prior to 2.06, where it incorrectly enabled the use of the ACPI command when Secure Boot was enabled. This flaw allows an attacker with privileged access to create a Secondary System Description Table SSDT containing code that can overwrite the Linux...

Astra Linux – Vulnerability in Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: ksmbd: The rcubarrier function was called in ksmbdserverexit. The bug is triggered due to racing between closing a connection and the rmmod operation. In ksmbd, rcubarrier is not called at the time of module unloading, so nothing...

Astra Linux – Vulnerabilities in Linux 5.10, Linux 5.15

KGDB and KDB allow read and write access to kernel memory, and therefore should be restricted during lockdown. An attacker with access to a serial port could trigger the debugger, so it is important that the debugger respects the lockdown mode when/if it is triggered. CVSS 3.1 Base Score: 6.7...

Linux Distros Unpatched Vulnerability : CVE-2026-89745

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d relay: update relay to use mmapprepare changed the mmap file operation to mmapprepare for relayf...

CVE-2026-89745

A flaw was found in the Linux kernel's debugfs component. The lockdown mechanism, designed to enhance system integrity, did not properly account for files using the mmapprepare operation. This oversight could allow an attacker to bypass kernel lockdown restrictions when the system is operating in...

DEBIAN-CVE-2026-89745

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d "relay: update relay to use mmapprepare" changed the mmap file operation to mmapprepare for relayfs, but the lockdown check in debugfs was not updated accordingly...

CVE-2026-89745

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d "relay: update relay to use mmapprepare" changed the mmap file operation to mmapprepare for relayfs, but the lockdown check in debugfs was not updated accordingly...

CVE-2026-89745

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d "relay: update relay to use mmapprepare" changed the mmap file operation to mmapprepare for relayfs, but the lockdown check in debugfs was not updated accordingly...

UBUNTU-CVE-2026-89745

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d "relay: update relay to use mmapprepare" changed the mmap file operation to mmapprepare for relayfs, but the lockdown check in debugfs was not updated accordingly...

CVE-2026-89745

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d "relay: update relay to use mmapprepare" changed the mmap file operation to mmapprepare for relayfs, but the lockdown check in debugfs was not updated accordingly...

CVE-2026-89745 debugfs: Fix lockdown check for mmap_prepare

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d "relay: update relay to use mmapprepare" changed the mmap file operation to mmapprepare for relayfs, but the lockdown check in debugfs was not updated accordingly...

CVE-2026-89745

This Linux kernel vulnerability affects the debugfs subsystem. A prior commit changed relayfs from using the mmap file operation to mmap_prepare, but the corresponding lockdown check in debugfs was not updated. As a result, when the kernel is in integrity mode , debugfs fails to lock down files t...

EUVD-2026-76657

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d "relay: update relay to use mmapprepare" changed the mmap file operation to mmapprepare for relayfs, but the lockdown check in debugfs was not updated accordingly...

CVE-2026-89745 debugfs: Fix lockdown check for mmap_prepare

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d "relay: update relay to use mmapprepare" changed the mmap file operation to mmapprepare for relayfs, but the lockdown check in debugfs was not updated accordingly...

CVE-2026-89745: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: debugfs: Fix lockdown check for mmapprepare Commit 651fdda8406d "relay: update relay to use mmapprepare" changed the mmap file operation to mmapprepare for relayfs, but the lockdown check in debugfs was not updated accordingly...