diff --git a/tests/ospf6d/test_lsdb.c b/tests/ospf6d/test_lsdb.c
index 633e88e769..ec0835c719 100644
--- a/tests/ospf6d/test_lsdb.c
+++ b/tests/ospf6d/test_lsdb.c
@@ -38,9 +38,15 @@ static size_t lsa_count = 0;
 
 static void lsa_check_resize(size_t len)
 {
+	struct ospf6_lsa **templsas;
+
 	if (lsa_count >= len)
 		return;
-	lsas = realloc(lsas, len * sizeof(lsas[0]));
+	templsas = realloc(lsas, len * sizeof(lsas[0]));
+	if (templsas)
+		lsas = templsas;
+	else
+		return;
 	memset(lsas + lsa_count, 0, sizeof(lsas[0]) * (len - lsa_count));
 
 	lsa_count = len;