CVE-2023-53522 cgroup,freezer: hold cpu_hotplug_lock before freezer_mutex

In the Linux kernel, the following vulnerability has been resolved: cgroup,freezer: hold cpuhotpluglock before freezermutex syzbot is reporting circular locking dependency between cpuhotpluglock and freezermutex, for commit f5d39b020809 "freezer,sched: Rewrite core freezer logic" replaced atomici...