CVE-2026-31787

XSA-487 / CVE-2026-31787 Double free du noyau Linux dans le pilote Xenprivcmd Un double free de la mémoire du noyau dans le pilote privcmd de Xen du noyau Linux permet de contourner le verrouillage du noyau secure boot. L'exploitation nécessite un accès de niveau root, ce qui limite les...

CVE-2026-90315

A flaw was found in the Linux kernel's PCI/sysfs legacy I/O and memory handlers. These handlers failed to enforce kernel lockdown, a security mechanism designed to prevent privileged users from performing certain low-level operations. A local root user could exploit this by writing to arbitrary I...

CVE-2026-97876

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

DEBIAN-CVE-2026-97876

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

UBUNTU-CVE-2026-97876

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876 Bypass of GRUB lockdown restriction in Secure Boot mode via serial command MMIO base address

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876 Bypass of GRUB lockdown restriction in Secure Boot mode via serial command MMIO base address

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876

A flaw in GRUB2 allows a local attacker with control over the boot configuration to bypass Secure Boot lockdown restrictions. The root cause is the insufficient validation of the MMIO base address passed to the serial command; GRUB fails to verify that the address corresponds to a legitimate UART...

CVE-2026-97876 Bypass of GRUB lockdown restriction in Secure Boot mode via serial command MMIO base address

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

EUVD-2026-91376

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

CVE-2026-97876: Untrusted Pointer Dereference

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

PT-2026-104209

A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while GRUB continues to report lockdown is enabled. The vulnerability is caused by insufficient validation of the MMIO base address passed to th...

Linux Distros Unpatched Vulnerability : CVE-2026-97876

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A local attacker with control over GRUB's configuration can bypass lockdown restrictions when booting with Secure Boot and load an unsigned GRUB module, while...

Linux Distros Unpatched Vulnerability : CVE-2026-90315

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - PCI/sysfs: Add lockdown checks to legacy I/O and memory handlers Currently, the legacy I/O and memory sysfs handlers do not check...

DEBIAN-CVE-2026-90315

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...

AZL-103040 CVE-2026-90315 affecting package kernel 6.6.157.1-1

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...

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...

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...