From 05aa1a78ac8e11a7378c426b8b991f02d3909681 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Mon, 22 Aug 2016 00:02:59 +0000
Subject: iseq.c: undef allocator

* iseq.c (Init_ISeq): undefine allocator of InstructionSequence,
  to get rid of segfaults at method call on uninitialized object.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55981 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 iseq.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'iseq.c')

diff --git a/iseq.c b/iseq.c
index 93be1ed956..b6b31c052f 100644
--- a/iseq.c
+++ b/iseq.c
@@ -2419,6 +2419,7 @@ Init_ISeq(void)
 {
     /* declare ::RubyVM::InstructionSequence */
     rb_cISeq = rb_define_class_under(rb_cRubyVM, "InstructionSequence", rb_cObject);
+    rb_undef_alloc_func(rb_cISeq);
     rb_define_method(rb_cISeq, "inspect", iseqw_inspect, 0);
     rb_define_method(rb_cISeq, "disasm", iseqw_disasm, 0);
     rb_define_method(rb_cISeq, "disassemble", iseqw_disasm, 0);
-- 
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