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CVE-2025-1272 is a vulnerability in Fedora Linux affecting Linux kernel versions starting from 6.12 and above, where the kernel lockdown mode is disabled without warning. This flaw allows attackers with high privileges to access sensitive kernel information such as memory mappings, I/O ports, BPF, and kprobes. It also permits loading of unsigned kernel modules, potentially enabling execution of untrusted code and bypassing Secure Boot protections.

The Linux kernel lockdown mode, designed to restrict access to sensitive kernel features and enforce security policies, is disabled without warning in Fedora Linux kernels version 6.12 and later. This misconfiguration allows attackers with elevated privileges to gain access to sensitive kernel internals including memory mappings, I/O ports, BPF, and kprobes. Furthermore, the vulnerability permits loading unsigned kernel modules, which can lead to execution of untrusted code and compromise Secure Boot mechanisms. The issue is specific to Fedora Linux and affects all kernel versions starting from 6.12.0 and above. The CVSS v3.1 score is 7.7, indicating a high impact on confidentiality, integrity, and availability, but requiring local privileged access and user interaction.

Detailed information about The Linux Kernel lockdown mode for kernel versions starting on 6.12 and above for Fedora Linux has the lockdown mode disabled without

The Linux Kernel lockdown mode for kernel versions starting on 6.12 and above for Fedora Linux has the lockdown mode disabled without any warning. - Live Threat Intelligence - Threat Radar | OffSeq.com

The Linux Kernel lockdown mode for kernel versions starting on 6.12 and above for Fedora Linux has the lockdown mode disabled without any warning. (CVE-2025-1272)

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