CVE-2025-38729
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-04

Last updated on: 2025-11-03

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Validate UAC3 power domain descriptors, too UAC3 power domain descriptors need to be verified with its variable bLength for avoiding the unexpected OOB accesses by malicious firmware, too.
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Meta Information
Published
2025-09-04
Last Modified
2025-11-03
Generated
2026-06-16
AI Q&A
2025-09-04
EPSS Evaluated
2026-06-15
NVD
CVE-2025-38729
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux kernel 6.1.153
linux kernel 5.10.244
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability involves the Linux kernel's ALSA usb-audio component, specifically related to UAC3 power domain descriptors. The issue is that these descriptors were not properly validated against their variable length (bLength), which could lead to out-of-bounds (OOB) memory accesses caused by malicious firmware. The vulnerability has been resolved by adding validation for these descriptors to prevent such unexpected OOB accesses.

Impact Analysis

If exploited, this vulnerability could allow malicious firmware to cause out-of-bounds memory accesses in the Linux kernel's usb-audio subsystem. This could potentially lead to system instability, crashes, or even arbitrary code execution, compromising the security and reliability of the affected system.

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