From b0f2bc39db0bef62f87129db604e16608818e24f Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Thu, 1 Jun 2017 08:45:56 +0900
Subject: Clear VM stack in OP_EXEC; ref #3678

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

(limited to 'src')

diff --git a/src/vm.c b/src/vm.c
index b9292693c..70e7005f2 100644
--- a/src/vm.c
+++ b/src/vm.c
@@ -2630,6 +2630,7 @@ RETRY_TRY_BLOCK:
       pool = irep->pool;
       syms = irep->syms;
       stack_extend(mrb, irep->nregs);
+      stack_clear(regs+1, irep->nregs-1);
       ci->nregs = irep->nregs;
       pc = irep->iseq;
       JUMP;
-- 
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