cve 2025 40312

About this tag
CVE-2025-40312 is a Linux kernel vulnerability related to the JFS (Journaled File System) filesystem. A corrective patch has been released to harden inode mode validation when loading an inode from disk. This addresses a corner case where a corrupted on-disk inode could present an invalid mode value, potentially confusing higher kernel layers. The patch is important for systems still using JFS, though it is less common than other filesystems. This tag covers discussions about the vulnerability, its impact, and the patch implementation for Linux systems.

  1. Linux JFS Inode Mode Validation Patch for CVE-2025-40312

    The Linux kernel has received a small but important corrective patch identified as CVE-2025-40312 — a JFS filesystem hardening change that verifies inode mode when loading an inode from disk, closing a corner-case in which a corrupted on‑disk inode could present an invalid mode value and confuse...
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