Tracker / CVE-2025-21856
CVE-2025-21856
High 7.8
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.
Affected products and versions
| linux | linux_kernel |
|---|---|
| linux | linux_kernel · 6.13 → 6.13.5 |
| linux | linux_kernel · 6.3 → 6.6.80 |
| linux | linux_kernel · 6.7 → 6.12.17 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.