CVE-2025-21665
filemap: avoid truncating 64-bit offset to 32 bits
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Description
In the Linux kernel, the following vulnerability has been resolved: filemap: avoid truncating 64-bit offset to 32 bits On 32-bit kernels, folio_seek_hole_data() was inadvertently truncating a 64-bit value to 32 bits, leading to a possible infinite loop when writing to an xfs filesystem.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- https://git.kernel.org/stable/c/09528bb1a4123e2a234eac2bc45a0e51e78dab43
- https://git.kernel.org/stable/c/280f1fb89afc01e7376f59ae611d54ca69e9f967
- https://git.kernel.org/stable/c/64e5fd96330df2ad278d1c4edcca581f26e5f76e
- https://git.kernel.org/stable/c/80fc836f3ebe2f2d2d2c80c698b7667974285a04
- https://git.kernel.org/stable/c/f505e6c91e7a22d10316665a86d79f84d9f0ba76
References (6)
SSVC — Action Prioritization
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
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