CVE-2025-22080: fs/ntfs3: Prevent integer overflow in hdr_first_de()

Description

In the Linux kernel, the following vulnerability has been resolved:

fs/ntfs3: Prevent integer overflow in hdr_first_de()

The "de_off" and "used" variables come from the disk so they both need to
check. The problem is that on 32bit systems if they're both greater than
UINT_MAX - 16 then the check does work as intended because of an integer
overflow.

Classification

CVE ID: CVE-2025-22080

Affected Products

Vendor: Linux

Product: Linux, Linux

Exploit Prediction Scoring System (EPSS)

EPSS Score: 0.02% (probability of being exploited)

EPSS Percentile: 3.07% (scored less or equal to compared to others)

EPSS Date: 2025-04-20 (when was this score calculated)

References

https://nvd.nist.gov/vuln/detail/CVE-2025-22080
https://git.kernel.org/stable/c/f6d44b1aa46d317e52c21fb9314cfb20dd69e7b0
https://git.kernel.org/stable/c/201a2bdda13b619c4927700ffe47d387a30ced50
https://git.kernel.org/stable/c/85615aa442830027923fc690390fa74d17b36ae1
https://git.kernel.org/stable/c/b9982065b82b4177ba3a7a72ce18c84921f7494d
https://git.kernel.org/stable/c/6bb81b94f7a9cba6bde9a905cef52a65317a8b04

Timeline