From c9165d06441fcb126d1d36a9b2fb123d404d2001 Mon Sep 17 00:00:00 2001
From: drbrain <drbrain@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 16 Mar 2016 22:18:12 +0000
Subject: * marshal.c (r_object0):  raise ArgumentError when linking to
 undefined   object.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54136 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 marshal.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'marshal.c')

diff --git a/marshal.c b/marshal.c
index 6639e03f45..054b2aad0c 100644
--- a/marshal.c
+++ b/marshal.c
@@ -1965,6 +1965,11 @@ r_object0(struct load_arg *arg, int *ivp, VALUE extmod)
 	rb_raise(rb_eArgError, "dump format error(0x%x)", type);
 	break;
     }
+
+    if (v == Qundef) {
+	rb_raise(rb_eArgError, "dump format error (bad link)");
+    }
+
     return v;
 }
 
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