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CVE-2025-38105

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Kill timer properly at removal The USB-audio MIDI code initializes the timer, but in a rare case, the driver m…

Published Jul 3, 2025EPSS 0.19%

Overview

CVE-2025-38105 is a medium-severity vulnerability. It was published on July 3, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

ALSA: usb-audio: Kill timer properly at removal

The USB-audio MIDI code initializes the timer, but in a rare case, the

driver might be freed without the disconnect call. This leaves the

timer in an active state while the assigned object is released via

snd_usbmidi_free(), which ends up with a kernel warning when the debug

configuration is enabled, as spotted by fuzzer.

For avoiding the problem, put timer_shutdown_sync() at

snd_usbmidi_free(), so that the timer can be killed properly.

While we're at it, replace the existing timer_delete_sync() at the

disconnect callback with timer_shutdown_sync(), too.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/06513dd6d32c37d0364db8488cfdf3e14da238a8Refgit.kernel.org/stable/c/0718a78f6a9f04b88d0dc9616cc216b31c5f3cf1Refgit.kernel.org/stable/c/62066758d2ae169278e5d6aea5995b1b6f6ddeb5Refgit.kernel.org/stable/c/647410a7da46067953a53c0d03f8680eff570959Refgit.kernel.org/stable/c/c611b9e55174e439dcd85a72969b43a95f3827a4Refgit.kernel.org/stable/c/efaf61052b8ff9ee8968912fbaf02c2847c78ede

How CyberStrike helps

Frequently asked questions

What is CVE-2025-38105?

CVE-2025-38105 is a medium-severity vulnerability. It was published on July 3, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2025-38105?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2025-38105?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2025-38105?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2025-38105 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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