gdbus: Check signature of property value before calling setter

diff --git a/gdbus/object.c b/gdbus/object.c
index e569acb..688cd05 100644 (file)
--- a/gdbus/object.c
+++ b/gdbus/object.c
@@ -896,6 +896,11 @@ static DBusMessage *properties_set(DBusConnection *connection,
                                                DBUS_ERROR_UNKNOWN_PROPERTY,
                                                "No such property '%s'", name);
 
+       if (strcmp(dbus_message_iter_get_signature(&sub), property->type))
+               return g_dbus_create_error(message,
+                                       DBUS_ERROR_INVALID_SIGNATURE,
+                                       "Invalid signature for '%s'", name);
+
        propdata = g_new(struct property_data, 1);
        propdata->id = next_pending_property++;
        propdata->message = dbus_message_ref(message);