Cloudanix VulnDB

CVE-2025-68266

None

CVSS

—

EPSS

0.2%

Published

Dec 16, 2025

CISA due date

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The record

In the Linux kernel, the following vulnerability has been resolved: bfs: Reconstruct file type when loading from disk syzbot is reporting that S_IFMT bits of inode->i_mode can become bogus when the S_IFMT bits of the 32bits "mode" field loaded from disk are corrupted or when the 32bits "attributes" field loaded from disk are corrupted. A documentation says that BFS uses only lower 9 bits of the "mode" field. But I can't find an explicit explanation that the unused upper 23 bits (especially, the S_IFMT bits) are initialized with 0. Therefore, ignore the S_IFMT bits of the "mode" field loaded from disk. Also, verify that the value of the "attributes" field loaded from disk is either BFS_VREG or BFS_VDIR (because BFS supports only regular files and the root directory).

Affected packages

Ecosystem Package Introduced Fixed
Linux Kernel 0 6.12.62
Linux Kernel 2.6.12 5.10.248
Linux Kernel 2.6.12 6.12.62

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