CVE-2022-50214 coresight: Clear the connection field properly

In the Linux kernel, the following vulnerability has been resolved: coresight: Clear the connection field properly coresight devices track their connections output connections and hold a reference to the fwnode. When a device goes away, we walk through the devices on the coresight bus and make su...

CVE-2022-50214

CVE-2022-50214 affects the Linux kernel coresight subsystem. Vulnerability: coresight_remove_match() does not clear the fwnode field when dropping references, causing a use-after-free and extra refcount drops if a device is removed after its peer. Impact: potential local use-after-free conditions...