nobu	2015-12-08 23:33:11 +0900 (Tue, 08 Dec 2015)

  New Revision: 52956

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=52956

  Log:
    check loading object index range

  Modified files:
    trunk/compile.c
Index: compile.c
===================================================================
--- compile.c	(revision 52955)
+++ compile.c	(revision 52956)
@@ -7979,6 +7979,9 @@ ibf_load_object(const struct ibf_load *l https://github.com/ruby/ruby/blob/trunk/compile.c#L7979
     if (object_index == 0) {
 	return Qnil;
     }
+    else if (object_index >= load->header->object_list_size) {
+	rb_raise(rb_eIndexError, "object index out of range: %"PRIdVALUE, object_index);
+    }
     else {
 	VALUE obj = rb_ary_entry(load->obj_list, (long)object_index);
 	if (obj == Qnil) { /* TODO: avoid multiple Qnil load */

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