Backport d26745b6078e9248f48d299e0b3d5d031c7be3fa

do not access NULL ICE objects (kde#195034)

ksmserver/server.cpp

@@ -801,6 +801,9 @@ void KSMServer::newConnection( int /*socket*/ )
 {
     IceAcceptStatus status;
     IceConn iceConn = IceAcceptConnection( ((KSMListener*)sender())->listenObj, &status);
+    if (iceConn == NULL) {
+        return;
+    }
     IceSetShutdownNegotiation( iceConn, False );
     IceConnectStatus cstatus;
     while ((cstatus = IceConnectionStatus (iceConn))==IceConnectPending) {
@@ -813,6 +816,7 @@ void KSMServer::newConnection( int /*socket*/ )
         else
             kdDebug( 1218 ) << "ICE Connection rejected!" << endl;
         (void )IceCloseConnection (iceConn);
+        return;
     }
 }