Merge pull request #11580 from Dehravor/warden

Core/Warden: Fix crash

Fix NULL dereference crash in case Warden is disabled (in configs or on Mac OS X platform) and client sends a CMSG_WARDEN_DATA opcode

src/server/game/Warden/Warden.cpp

@@ -223,6 +223,9 @@ std::string Warden::Penalty(WardenCheck* check /*= NULL*/)
 
 void WorldSession::HandleWardenDataOpcode(WorldPacket& recvData)
 {
+    if (!_warden)
+        return;
+
     _warden->DecryptData(recvData.contents(), recvData.size());
     uint8 opcode;
     recvData >> opcode;