From 1d26012ce84d12cba236e5a88be25e6d489c9144 Mon Sep 17 00:00:00 2001
From: Jeremy Allison <jra@samba.org>
Date: Fri, 5 Feb 2016 13:21:29 -0800
Subject: [PATCH] asn1: Ensure asn1_tag_remaining() only ever returns -1 as an
 error condition.

Signed-off-by: Jeremy Allison <jra@samba.org>
Reviewed-by: Volker Lendecke <vl@samba.org>

Autobuild-User(master): Jeremy Allison <jra@samba.org>
Autobuild-Date(master): Wed Feb 10 01:38:03 CET 2016 on sn-devel-144
---
 lib/util/asn1.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/util/asn1.c b/lib/util/asn1.c
index 029265e2b86..9d6d4164f10 100644
--- a/lib/util/asn1.c
+++ b/lib/util/asn1.c
@@ -721,6 +721,10 @@ int asn1_tag_remaining(struct asn1_data *data)
 		data->has_error = true;
 		return -1;
 	}
+	if (remaining < 0) {
+		data->has_error = true;
+		return -1;
+	}
 	return remaining;
 }
 
-- 
2.47.3