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🛡️ CVE-2025-38105 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

ALSA: usb-audio: Kill timer properly at removal

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.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

CVE-2025-38105 is recorded against 2 packages.

  • kernel (from 6.13.0 up to 6.15.3)
  • linux-kernel (from 6.13 up to 6.15.3)

Timeline and source

Published on 3 July 2025 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2025-38105 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-07-03
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.13.0 6.15.3
linux-kernel 6.13 6.15.3

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.