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CVE-2025-68266

bfs: Reconstruct file type when loading from disk

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).
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < d0c5ec1f57d8fbb953f166a27d9d32473dc8f3e4
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < aeccd6743ee4fdd1ab8cfcbb5b9a20b613418f6d
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 8f73336b75bd3457b6f9410f2a0601a238f32238
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < a9f626396bfe66f49b743601e862767928237cc0
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 77899444d46162aeb65f229590c26ba266864223
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < a8cb796e7e2cb7971311ba236922f5e7e1be77e6
Status affected
Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version < 34ab4c75588c07cca12884f2bf6b0347c7a13872
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 2.6.12
Status affected
Version 0
Version < 2.6.12
Status unaffected
Version <= 5.10.*
Version 5.10.248
Status unaffected
Version <= 5.15.*
Version 5.15.198
Status unaffected
Version <= 6.1.*
Version 6.1.160
Status unaffected
Version <= 6.6.*
Version 6.6.120
Status unaffected
Version <= 6.12.*
Version 6.12.62
Status unaffected
Version <= 6.17.*
Version 6.17.12
Status unaffected
Version <= *
Version 6.18
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.04% 0.131
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Es wurden noch keine Informationen zu CWE veröffentlicht.