libxrdp: ignore incoming channels with empty names

libxrdp/xrdp_sec.c

@@ -1862,6 +1862,12 @@ xrdp_sec_process_mcs_data_channels(struct xrdp_sec *self, struct stream *s)
             return 1;
         }
         in_uint8a(s, channel_item->name, 8);
+        if (g_strlen(channel_item->name) == 0)
+        {
+            g_writeln("xrdp_sec_process_mcs_data_channels: got an empty channel name, ignoring it");
+            g_free(channel_item);
+            continue;
+        }
         in_uint32_le(s, channel_item->flags);
         channel_item->chanid = MCS_GLOBAL_CHANNEL + (index + 1);
         list_add_item(self->mcs_layer->channel_list, (tintptr) channel_item);