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;

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-04

Last Modified

2025-10-06

Generated

2026-07-06

AI Q&A

2025-10-04

EPSS Evaluated

2026-07-05

NVD

CVE-2025-39940

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	From 5.15.160 (inc) to 5.16 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

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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