From 5af770cd59f6edb6f111f497fef4df3fe956cc62 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Mon, 10 Aug 2015 11:41:01 +0900
Subject: prevent out-of-bounds ensure clause access; fix #2910

---
 src/vm.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/vm.c')

diff --git a/src/vm.c b/src/vm.c
index 025b487bc..00636a870 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -266,6 +266,7 @@ ecall(mrb_state *mrb, int i)
   mrb_value *self = mrb->c->stack;
   struct RObject *exc;
 
+  if (i<0) return;
   p = mrb->c->ensure[i];
   if (!p) return;
   if (mrb->c->ci->eidx > i)
-- 
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