void __set_task_comm(struct task_struct *tsk, const char *buf, bool exec)
{
	task_lock(tsk);
	trace_task_rename(tsk, buf);
	strlcpy(tsk->comm, buf, sizeof(tsk->comm));
	task_unlock(tsk);
	perf_event_comm(tsk, exec);
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.