From 6e0ba0085d22b7751c46b178e841046483f0f6b4 Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby-lang.org>
Date: Sat, 4 Feb 2017 12:37:08 +0900
Subject: Jump address should fit in 16 bits range; fix #3426

---
 mrbgems/mruby-compiler/core/codegen.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mrbgems/mruby-compiler/core/codegen.c b/mrbgems/mruby-compiler/core/codegen.c
index eae0492ce..1f7c069d4 100644
--- a/mrbgems/mruby-compiler/core/codegen.c
+++ b/mrbgems/mruby-compiler/core/codegen.c
@@ -388,6 +388,9 @@ dispatch(codegen_scope *s, int pc)
     scope_error(s);
     break;
   }
+  if (diff > MAXARG_sBx) {
+    codegen_error(s, "too distant jump address");
+  }
   s->iseq[pc] = MKOP_AsBx(c, GETARG_A(i), diff);
 }
 
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