hfsplus: Verify inode mode when loading from disk
CVE-2025-68767 is fixed in linux on 1 platform, first by DEBIAN-CVE-2025-68767, released January 13, 2026. It is not reported as exploited. Patch Radar priority: Routine.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.162-1 | DEBIAN-CVE-2025-68767 | Jan 13, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.69-1 | DEBIAN-CVE-2025-68767 | Jan 13, 2026 |
| linux · Debian 14 | 6.18.3-1 | DEBIAN-CVE-2025-68767 | Jan 13, 2026 |
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