diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index bedda18..290cf77 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -904,7 +904,7 @@
 	/*
 	 * Already in the rightmost position?
 	 */
-	if (unlikely(rightmost->vruntime < se->vruntime))
+	if (unlikely(!rightmost || rightmost->vruntime < se->vruntime))
 		return;
 
 	/*