diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 917ae931bdd0..786ac288e637 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1895,6 +1895,9 @@ out:
 
 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);
 }
 #endif /* CONFIG_SMP */