CVE-2025-40077
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-28

Last updated on: 2025-11-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid overflow while left shift operation Should cast type of folio->index from pgoff_t to loff_t to avoid overflow while left shift operation.
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Meta Information
Published
2025-10-28
Last Modified
2025-11-24
Generated
2026-06-16
AI Q&A
2025-10-28
EPSS Evaluated
2026-06-14
NVD
CVE-2025-40077
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel's f2fs file system involves an overflow issue during a left shift operation. Specifically, the type of folio->index was not properly cast from pgoff_t to loff_t, which could cause an overflow when performing the left shift. The fix involves correctly casting the type to avoid this overflow.

Impact Analysis

An overflow during a left shift operation in the kernel could potentially lead to incorrect memory calculations or data corruption, which might affect system stability or security. However, specific impacts are not detailed in the provided information.

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