{"cve":"CVE-2025-68266","nvd":{"published":"2025-12-16T15:15:56.140","modified":"2026-10-15T02:18:11.443","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbfs: Reconstruct file type when loading from disk\n\nsyzbot is reporting that S_IFMT bits of inode->i_mode can become bogus when\nthe S_IFMT bits of the 32bits \"mode\" field loaded from disk are corrupted\nor when the 32bits \"attributes\" field loaded from disk are corrupted.\n\nA documentation says that BFS uses only lower 9 bits of the \"mode\" field.\nBut I can't find an explicit explanation that the unused upper 23 bits\n(especially, the S_IFMT bits) are initialized with 0.\n\nTherefore, ignore the S_IFMT bits of the \"mode\" field loaded from disk.\nAlso, verify that the value of the \"attributes\" field loaded from disk is\neither BFS_VREG or BFS_VDIR (because BFS supports only regular files and\nthe root directory).","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/34ab4c75588c07cca12884f2bf6b0347c7a13872","https://git.kernel.org/stable/c/77899444d46162aeb65f229590c26ba266864223","https://git.kernel.org/stable/c/8f73336b75bd3457b6f9410f2a0601a238f32238","https://git.kernel.org/stable/c/a8cb796e7e2cb7971311ba236922f5e7e1be77e6","https://git.kernel.org/stable/c/a9f626396bfe66f49b743601e862767928237cc0"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:17:07.138532058+00:00"},"epss":{"cve":"CVE-2025-68266","score":0.00218,"percentile":0.12128,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}