hfsplus: Verify inode mode when loading from disk
Key facts
- Attack vector
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- Privileges required
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- User interaction
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- Attack complexity
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- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.64, 6.18.3, 6.19
Vendor assessments
Red Hat
Not affected: 5 products
- Red Hat Enterprise Linux 10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2025-68767
- 2026-10-03 Alias added: GHSA-mgmc-76vj-qf3j
References
Other 7
- 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
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Sources
- CVE-2025-68767 · CVE Program
- CVE-2025-68767 · NVD
- FIRST EPSS
- GHSA-mgmc-76vj-qf3j · GitHub Advisory Database · CC BY 4.0
- CVE-2025-68767 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences