CVE-2025-68344
Unknown Unknown - Not Provided
Integer Overflow in Linux ALSA Wavefront Sample Validation

Publication date: 2025-12-24

Last updated on: 2025-12-24

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: wavefront: Fix integer overflow in sample size validation The wavefront_send_sample() function has an integer overflow issue when validating sample size. The header->size field is u32 but gets cast to int for comparison with dev->freemem Fix by using unsigned comparison to avoid integer overflow.
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Meta Information
Published
2025-12-24
Last Modified
2025-12-24
Generated
2026-06-16
AI Q&A
2025-12-24
EPSS Evaluated
2026-06-14
NVD
CVE-2025-68344
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux kernel *
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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 ALSA wavefront driver. Specifically, the wavefront_send_sample() function incorrectly handles the sample size validation by casting a 32-bit unsigned integer (u32) to a signed integer (int) for comparison, which can cause an integer overflow. The fix involves using an unsigned comparison to prevent this overflow.

Impact Analysis

The integer overflow in sample size validation could potentially lead to incorrect memory handling, which might cause unexpected behavior such as crashes or memory corruption in the ALSA wavefront driver. This could affect system stability or security depending on how the driver is used.

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