kernel: rcu: Avoid stack overflow due to __rcu_irq_enter_check_tick() being kprobe-ed

In the Linux kernel, the following vulnerability has been resolved: rcu: Avoid stack overflow due to rcuirqenterchecktick being kprobe-ed Registering a kprobe on rcuirqenterchecktick can cause kernel stack overflow as shown below. This issue can be reproduced by enabling CONFIGNOHZFULL and bootin...