diff --git a/mm/vmscan.c b/mm/vmscan.c
index 94189499081f7f6bade9e266fb74e55976cf2667..025d8463c981ffb3165b002119af8b3b597d76aa 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -592,7 +592,7 @@ unsigned long lruvec_lru_size(struct lruvec *lruvec, enum lru_list lru,
 	}
 #endif
 
-	for (zid = 0; zid <= zone_idx; zid++) {
+	for (zid = 0; zid <= zone_idx && zid < MAX_NR_ZONES; zid++) {
 		struct zone *zone = &lruvec_pgdat(lruvec)->node_zones[zid];
 
 		if (!managed_zone(zone))