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CVE-2025-68266 (GCVE-0-2025-68266)

Vulnerability from cvelistv5 – Published: 2025-12-16 14:47 – Updated: 2026-09-08 08:43
VLAI
Title
bfs: Reconstruct file type when loading from disk
Summary
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).
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d0c5ec1f57d8fbb953f166a27d9d32473dc8f3e4 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < aeccd6743ee4fdd1ab8cfcbb5b9a20b613418f6d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8f73336b75bd3457b6f9410f2a0601a238f32238 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a9f626396bfe66f49b743601e862767928237cc0 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 77899444d46162aeb65f229590c26ba266864223 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a8cb796e7e2cb7971311ba236922f5e7e1be77e6 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 34ab4c75588c07cca12884f2bf6b0347c7a13872 (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 5.10.248 , ≤ 5.10.* (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.160 , ≤ 6.1.* (semver)
Unaffected: 6.6.120 , ≤ 6.6.* (semver)
Unaffected: 6.12.62 , ≤ 6.12.* (semver)
Unaffected: 6.17.12 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
guessed Create a notification for this product.
Show details on NVD website
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: bfs: Reconstruct file type when loading from disk",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68266.json",
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}



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