From 4a17ee2c6e1f2fd4d08dfd386b0996e7b312ef87 Mon Sep 17 00:00:00 2001
From: bert hubert <bert.hubert@netherlabs.nl>
Date: Wed, 20 Apr 2016 12:42:02 +0200
Subject: [PATCH] this fix prevents a crash in bind backend in dnssec mode but
 unsure if it does the right thing

---
 modules/bindbackend/bindbackend2.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/bindbackend/bindbackend2.cc b/modules/bindbackend/bindbackend2.cc
index fe95a29482..a88e862014 100644
--- a/modules/bindbackend/bindbackend2.cc
+++ b/modules/bindbackend/bindbackend2.cc
@@ -940,7 +940,8 @@ bool Bind2Backend::findBeforeAndAfterUnhashed(BB2DomainInfo& bbd, const DNSName&
         break;
       }
     }
-    after = (iter)->qname.labelReverse().toString(" ",false);
+    if(iter != records->end())
+      after = (iter)->qname.labelReverse().toString(" ",false);
   }
 
   // cerr<<"Before: '"<<before<<"', after: '"<<after<<"'\n";
-- 
2.47.2