CVE-2025-68767

hfsplus: Verify inode mode when loading from disk

State: Published
Severity: Not scored
Published: Jan 13, 2026
Updated: May 11, 2026
Reserved: Dec 24, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6f768724aabd5b321c5b8f15acdca11e4781cf32Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before d92333c7a35856e419500e7eed72dac1afa404a5Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 001f44982587ad462b3002ee40c75e8df67d597dAffected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 05ec9af3cc430683c97f76027e1c55ac6fd25c59Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before edfb2e602b5ba5ca6bf31cbac20b366efb72b156Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 91f114bffa36ce56d0e1f60a0a44fc09baaefc79Affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 005d4b0d33f6b4a23d382b7930f7a96b95b01f39Affected
LinuxLinux	2.6.12Affected before 2.6.12Not affected 5.10.248 through 5.10.Not affected 5.15.198 through 5.15.Not affected 6.1.160 through 6.1.Not affected 6.6.120 through 6.6.Not affected 6.12.64 through 6.12.Not affected 6.18.3 through 6.18.Not affected 6.19 and laterNot affected

Product

Versions

LinuxLinux

1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 6f768724aabd5b321c5b8f15acdca11e4781cf32Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before d92333c7a35856e419500e7eed72dac1afa404a5Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 001f44982587ad462b3002ee40c75e8df67d597dAffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 05ec9af3cc430683c97f76027e1c55ac6fd25c59Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before edfb2e602b5ba5ca6bf31cbac20b366efb72b156Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 91f114bffa36ce56d0e1f60a0a44fc09baaefc79Affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 005d4b0d33f6b4a23d382b7930f7a96b95b01f39Affected

LinuxLinux

2.6.12Affected
before 2.6.12Not affected
5.10.248 through 5.10.*Not affected
5.15.198 through 5.15.*Not affected
6.1.160 through 6.1.*Not affected
6.6.120 through 6.6.*Not affected
6.12.64 through 6.12.*Not affected
6.18.3 through 6.18.*Not affected
6.19 and laterNot affected

References

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