Ubuntu: Security Advisory (USN-7801-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

CVE-2025-21913

In the Linux kernel, the following vulnerability has been resolved: x86/amdnb: Use rdmsrsafe in amdgetmmconfigrange Xen doesn't offer MSRFAM10HMMIOCONFBASE to all guests. This results in the following warning: unchecked MSR access error: RDMSR from 0xc0010058 at rIP: 0xffffffff8101d19f...

CVE-2025-21913 x86/amd_nb: Use rdmsr_safe() in amd_get_mmconfig_range()

In the Linux kernel, the following vulnerability has been resolved: x86/amdnb: Use rdmsrsafe in amdgetmmconfigrange Xen doesn't offer MSRFAM10HMMIOCONFBASE to all guests. This results in the following warning: unchecked MSR access error: RDMSR from 0xc0010058 at rIP: 0xffffffff8101d19f...

CVE-2025-21913

In the Linux kernel, the following vulnerability has been resolved: x86/amdnb: Use rdmsrsafe in amdgetmmconfigrange Xen doesn't offer MSRFAM10HMMIOCONFBASE to all guests. This results in the following warning: unchecked MSR access error: RDMSR from 0xc0010058 at rIP: 0xffffffff8101d19f...

CVE-2025-21913 x86/amd_nb: Use rdmsr_safe() in amd_get_mmconfig_range()

In the Linux kernel, the following vulnerability has been resolved: x86/amdnb: Use rdmsrsafe in amdgetmmconfigrange Xen doesn't offer MSRFAM10HMMIOCONFBASE to all guests. This results in the following warning: unchecked MSR access error: RDMSR from 0xc0010058 at rIP: 0xffffffff8101d19f...

CVE-2025-21913

CVE-2025-21913 affects the Linux kernel, addressing a vulnerability in x86/amd_nb related to MSR handling for MMCFG. The root cause involved unsafe or unchecked RDMSR accesses (amd_get_mmconfig_range) and Xen guests lacking MSR_FAM10H_MMIO_CONF_BASE support, which could trigger warnings and poten...