fixed potential memory leak

SSU.cpp

@@ -217,6 +217,8 @@ namespace transport
 		for (auto it1: packets)
 		{
 			auto packet = it1;
+			try
+			{	
 				if (!session || session->GetRemoteEndpoint () != packet->from) // we received packet for other session than previous
 				{
 					if (session) session->FlushData ();
@@ -231,10 +233,17 @@ namespace transport
 							std::unique_lock<std::mutex> l(m_SessionsMutex);
 							m_Sessions[packet->from] = session;
 						}	
-					LogPrint ("New SSU session from ", packet->from.address ().to_string (), ":", packet->from.port (), " created");
+						LogPrint (eLogInfo, "New SSU session from ", packet->from.address ().to_string (), ":", packet->from.port (), " created");
 					}
 				}
 				session->ProcessNextMessage (packet->buf, packet->len, packet->from);
+			}	
+			catch (std::exception& ex)
+			{
+				LogPrint (eLogError, "SSU: HandleReceivedPackets ", ex.what ());
+				if (session) session->FlushData ();
+				session = nullptr;
+			}	
 			delete packet;
 		}
 		if (session) session->FlushData ();