DEBIAN-CVE-2025-23134

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Source
https://security-tracker.debian.org/tracker/DEBIAN-CVE-2025-23134
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-23134.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-23134
Upstream
Published
2025-04-16T15:16:07Z
Modified
2025-09-18T05:19:07Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: ALSA: timer: Don't take registermutex with copyfrom/touser() The infamous mmaplock taken in copyfrom/touser() can be often problematic when it's called inside another mutex, as they might lead to deadlocks. In the case of ALSA timer code, the bad pattern is with guard(mutex)(&registermutex) that covers copyfrom/touser() -- which was mistakenly introduced at converting to guard(), and it had been carefully worked around in the past. This patch fixes those pieces simply by moving copyfrom/to_user() out of the register mutex lock again.

References

Affected packages

Debian:13 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.12.25-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:14 / linux

Package

Name
linux
Purl
pkg:deb/debian/linux?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.12.25-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}