Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2025-38105

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
03/07/2025
Last modified:
20/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ALSA: usb-audio: Kill timer properly at removal<br /> <br /> The USB-audio MIDI code initializes the timer, but in a rare case, the<br /> driver might be freed without the disconnect call. This leaves the<br /> timer in an active state while the assigned object is released via<br /> snd_usbmidi_free(), which ends up with a kernel warning when the debug<br /> configuration is enabled, as spotted by fuzzer.<br /> <br /> For avoiding the problem, put timer_shutdown_sync() at<br /> snd_usbmidi_free(), so that the timer can be killed properly.<br /> While we&amp;#39;re at it, replace the existing timer_delete_sync() at the<br /> disconnect callback with timer_shutdown_sync(), too.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 2.6.14 (including) 6.6.111 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.7 (including) 6.12.52 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 6.13 (including) 6.15.3 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools