Linux Kernel Vulnerability CVE-2025-37889: Inconsistent Treatment of platform_max in ASoC Operations
Summary
CVE-2025-37889: In the Linux kernel, the following vulnerability has been resolved: ASoC: ops: Consistently treat platform_max as control value This reverts commit 9bdd10d57a88 ("ASoC: ops: Shift tested values in snd_soc_put_volsw() by... Affects linux versions < 6.1.133-1. Fixed in 6.1.133-1. How to fix ↓
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Background
The Linux kernel is a widely used open-source operating system kernel that serves as the foundation for various distributions, including Debian. It manages hardware resources and provides essential services for software applications. The kernel's Advanced Sound Architecture (ASoC) framework is responsible for handling audio devices and their controls. This vulnerability arises from an inconsistency in how the platform_max value is interpreted, which can lead to incorrect audio control behavior.
Vulnerability Detail
CVE-2025-37889 is a vulnerability in the Linux kernel's ASoC operations that stems from a previous commit that altered the interpretation of the platform_max value. This value can be understood as either the maximum register value or the maximum control value. The patch that was applied shifted the interpretation towards a register value, which conflicted with the majority of other usages that treated it as a control value. This inconsistency could lead to improper audio volume control, potentially affecting user experience and system functionality.
How To Fix
Minimum fixed version
6.1.133-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds mentioned for this vulnerability. It is recommended to apply the patch as soon as it is available to mitigate any potential risks.
Conclusion
CVE-2025-37889 is a significant vulnerability in the Linux kernel that arises from inconsistent handling of the platform_max value in ASoC operations. It is crucial for users to update their systems to the patched versions to ensure proper audio control functionality and maintain system integrity.
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FAQ
CVE-2025-37889 is a vulnerability in the Linux kernel related to the inconsistent treatment of the platform_max value in ASoC operations.
This vulnerability may lead to incorrect audio control behavior, potentially affecting the user experience and system functionality.
You can use Vulert to monitor and alert for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected by this vulnerability.
While there are no specific workarounds, it is advisable to monitor the situation and apply the patch as soon as possible to mitigate risks.
More detailed information can be found in the official CVE database or by reviewing the Linux kernel mailing lists and documentation.
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