CVE-2025-39940
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-04

Last updated on: 2025-10-06

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: dm-stripe: fix a possible integer overflow There's a possible integer overflow in stripe_io_hints if we have too large chunk size. Test if the overflow happened, and if it did, don't set limits->io_min and limits->io_opt;
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Meta Information
Published
2025-10-04
Last Modified
2025-10-06
Generated
2026-06-16
AI Q&A
2025-10-04
EPSS Evaluated
2026-06-15
NVD
CVE-2025-39940
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
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Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability is an integer overflow issue in the Linux kernel's dm-stripe component, specifically in the stripe_io_hints function. It occurs when the chunk size is too large, potentially causing an overflow. The fix involves checking if the overflow happened and, if so, preventing the setting of certain I/O limits to avoid incorrect behavior.

Impact Analysis

If exploited, the integer overflow could lead to incorrect handling of I/O limits in the dm-stripe component, which might cause unexpected behavior or system instability. However, specific impacts such as data corruption or security breaches are not detailed in the provided information.

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