Description
In the Linux kernel, the following vulnerability has been resolved: hfsplus: Verify inode mode 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 16bits "mode" field loaded from disk are corrupted. According to [1], the permissions field was treated as reserved in Mac OS 8 and 9. According to [2], the reserved field was explicitly initialized with 0, and that field must remain 0 as long as reserved. Therefore, when the "mode" field is not 0 (i.e. no longer reserved), the file must be S_IFDIR if dir == 1, and the file must be one of S_IFREG/S_IFLNK/S_IFCHR/ S_IFBLK/S_IFIFO/S_IFSOCK if dir == 0.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 6f768724aabd5b321c5b8f15acdca11e4781cf32affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < d92333c7a35856e419500e7eed72dac1afa404a5affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 001f44982587ad462b3002ee40c75e8df67d597daffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 05ec9af3cc430683c97f76027e1c55ac6fd25c59affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < edfb2e602b5ba5ca6bf31cbac20b366efb72b156affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 91f114bffa36ce56d0e1f60a0a44fc09baaefc79affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 005d4b0d33f6b4a23d382b7930f7a96b95b01f39affected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected5.10.248 to ≤ 5.10.*unaffected5.15.198 to ≤ 5.15.*unaffected6.1.160 to ≤ 6.1.*unaffected6.6.120 to ≤ 6.6.*unaffected6.12.64 to ≤ 6.12.*unaffected6.18.3 to ≤ 6.18.*unaffected6.19 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/6f768724aabd5b321c5b8f15acdca11e4781cf32 ↗
- https://git.kernel.org/stable/c/d92333c7a35856e419500e7eed72dac1afa404a5 ↗
- https://git.kernel.org/stable/c/001f44982587ad462b3002ee40c75e8df67d597d ↗
- https://git.kernel.org/stable/c/05ec9af3cc430683c97f76027e1c55ac6fd25c59 ↗
- https://git.kernel.org/stable/c/edfb2e602b5ba5ca6bf31cbac20b366efb72b156 ↗
- https://git.kernel.org/stable/c/91f114bffa36ce56d0e1f60a0a44fc09baaefc79 ↗
- https://git.kernel.org/stable/c/005d4b0d33f6b4a23d382b7930f7a96b95b01f39 ↗