Limit the maximum length of a qname

diff --git a/pdns/dnsparser.cc b/pdns/dnsparser.cc
index 5fe05c43dc84499280332a79c9cbcc60fac47f60..e54b678b92fdd4d72ca412bc93dbca606ae34e55 100644 (file)
--- a/pdns/dnsparser.cc
+++ b/pdns/dnsparser.cc
@@ -470,6 +470,8 @@ void PacketReader::getLabelFromContent(const vector<uint8_t>& content, uint16_t&
       }
       ret.append(1,'.');
     }
+    if (ret.length() > 1024)
+      throw MOADNSException("Total name too long");
   }
 }