Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2025-21856

In the Linux kernel, the following vulnerability has been resolved: s390/ism: add release function for struct device According to device_release() 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 device_add() 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 5.6%
CVSS Severity
CVSS v3 Score 7.8
Products affected by CVE-2025-21856


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