1 files changed, 3 insertions, 0 deletions
diff --git a/array.c b/array.c
index 7f23940e43..1387269993 100644
--- a/array.c
+++ b/array.c
@@ -2272,6 +2272,9 @@ rb_ary_fill(argc, argv, ary)
 	break;
     }
     rb_ary_modify(ary);
+    if (len < 0) {
+        return ary;
+    }
     if (len > ARY_MAX_SIZE - beg) {
 	rb_raise(rb_eArgError, "argument too big");
     }