From 34e61ca92bcf34121e439e880a8a5cd4b667da14 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sun, 19 Jul 2015 00:25:45 +0000
Subject: eval.c: check tag value

* eval.c (rb_jump_tag): paranoiac check of tag value.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@51295 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 eval.c | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'eval.c')

diff --git a/eval.c b/eval.c
index 8c8ac947f6..69a15d9985 100644
--- a/eval.c
+++ b/eval.c
@@ -755,6 +755,9 @@ rb_raise_jump(VALUE mesg, VALUE cause)
 void
 rb_jump_tag(int tag)
 {
+    if (UNLIKELY(tag < TAG_RETURN || tag > TAG_FATAL)) {
+	unknown_longjmp_status(tag);
+    }
     JUMP_TAG(tag);
 }
 
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