DEBIAN-CVE-2025-21856

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Source
https://security-tracker.debian.org/tracker/DEBIAN-CVE-2025-21856
Import Source
https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-21856.json
JSON Data
https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-21856
Upstream
Published
2025-03-12T10:15:18Z
Modified
2025-09-19T06:27:50Z
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved: s390/ism: add release function for struct device According to devicerelease() in /drivers/base/core.c, a device without a release function is a broken device and must be fixed. The current code directly frees the device after calling deviceadd() without waiting for other kernel parts to release their references. Thus, a reference could still be held to a struct device, e.g., by sysfs, leading to potential use-after-free issues if a proper release function is not set.

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
6.12.17-1

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
6.12.17-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}