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vfs

About this tag
The vfs tag on WindowsForum.com covers discussions about the Virtual File System (VFS) layer in the Linux kernel, particularly in relation to Windows filesystem drivers like ntfs3. Recent content highlights a kernel fix for CVE-2025-40313, which addresses an NTFS metadata handling issue where $Extend records are now correctly classified as regular files for VFS compatibility. This change ensures that the ntfs3 driver meets kernel expectations for inode modes. Topics include kernel patches, vulnerability management, and filesystem compatibility, especially for administrators handling untrusted NTFS images in virtual machines, forensics, or CI systems.
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    CVE-2025-40313: ntfs3 fix marks $Extend as regular files for VFS compatibility

    A new kernel fix quietly landed this week that closes a subtle NTFS metadata handling issue in the in‑kernel ntfs3 driver: CVE‑2025‑40313, described as “ntfs3: pretend $Extend records as regular files.” The change is small in code but important in principle — it corrects how the driver...
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