Vulnerability in Linux Kernel Affecting JFS File System

CVE-2025-40312

What is CVE-2025-40312?

A vulnerability in the Linux kernel's JFS (Journaling File System) has been identified, which allows for improper handling of inode modes when loading from a potentially corrupted disk. This can result in the loading of invalid inode data, risking system stability and data integrity. Mitigation has been implemented by ensuring that inode modes are verified during the loading process, similar to the improvements made in the ISOFS subsystem.

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