Bug 2360304 (CVE-2025-22080)

Summary: CVE-2025-22080 kernel: fs/ntfs3: Prevent integer overflow in hdr_first_de()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-04-16 15:07:10 UTC 
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.
Comment 1 Avinash Hanwate 2025-04-17 04:58:08 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025041613-CVE-2025-22080-a4ec@gregkh/T