From c69cba2ad97c311d1ae72c8a77cf1e57d70d694f Mon Sep 17 00:00:00 2001
From: Kouhei Sutou <kou@clear-code.com>
Date: Fri, 25 Mar 2016 00:25:48 +0900
Subject: Add missing regs update

mrb_vm_define_class() may realloc() mrb->c->stack because it calls
mrb_funcall() for inherited hook. If mrb->c->stack is realloc()-ed, regs
refers orphan address.
---
 src/vm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/vm.c b/src/vm.c
index e65b0336c..b56ad4969 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -2271,6 +2271,7 @@ RETRY_TRY_BLOCK:
         base = mrb_obj_value(mrb->c->ci->target_class);
       }
       c = mrb_vm_define_class(mrb, base, super, id);
+      regs = mrb->c->stack;
       regs[a] = mrb_obj_value(c);
       ARENA_RESTORE(mrb, ai);
       NEXT;
-- 
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