EUVD-2025-150393

In the Linux kernel, the following vulnerability has been resolved: x86/kvm: Force legacy PCI hole to UC when overriding MTRRs for TDX/SNP When running as an SNP or TDX guest under KVM, force the legacy PCI hole, i.e. memory between Top of Lower Usable DRAM and 4GiB, to be mapped as UC via a forc...

Arbitrary Code Execution

kernel is vulnerable to arbitrary code execution. The vulnerability exists through lockdown with a bypass through ACPI write via acpiconfigfs...

Moderate: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

kernel: lockdown: bypass through ACPI write via acpi_configfs

A flaw was found in how the ACPI table loading through acpiconfigfs was handled when the kernel was locked down. This flaw allows a root privileged local user to circumvent the kernel lockdown restrictions. The highest threat from this vulnerability is to data confidentiality and integrity as wel...

Moderate: Red Hat Security Advisory: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

kernel: lockdown: bypass through ACPI write via efivar_ssdt

A flaw was found in how the ACPI table loading through the EFI variable and the related efivarssdt boot option was handled when the Linux kernel was locked down. This flaw allows a root privileged local user to circumvent the kernel lockdown restrictions. The highest threat from this vulnerabilit...

kernel: lockdown: bypass through ACPI write via acpi_configfs

A flaw was found in how the ACPI table loading through acpiconfigfs was handled when the kernel was locked down. This flaw allows a root privileged local user to circumvent the kernel lockdown restrictions. The highest threat from this vulnerability is to data confidentiality and integrity as wel...