diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 8c48658e8642..6d7e7881813c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2843,6 +2843,9 @@ EXPORT_SYMBOL_GPL(wake_up_if_idle);
 
 bool cpus_share_cache(int this_cpu, int that_cpu)
 {
+	if (this_cpu == that_cpu)
+		return true;
+
 	return per_cpu(sd_llc_id, this_cpu) == per_cpu(sd_llc_id, that_cpu);
 }