Android : Android-Facebook integration: First user session has no permission

I have an Android application that need to be able to update the Facebook status of a user. I am using this code to request the appropriate permissions:

public void onClick(DialogInterface dialog, int which) {

    final String openPermission = "basic_info";
    final String publishPermission = "publish_actions";

    Session.StatusCallback callback = new Session.StatusCallback() {

        @Override
        public void call(Session session, SessionState state, Exception exception) {
            Log.d("test", "callback session opened " + session.isOpened() + " " + exception);
            if (session.isOpened()) {
                Log.d("test", "callback session permissions " + session.getPermissions());
                if (session.getPermissions().contains(publishPermission)) {
                    doUpdateStatus(session, status);
                } else {
                    Session.NewPermissionsRequest newPermRequest = new Session.NewPermissionsRequest(ctx, publishPermission);
                    session.requestNewPublishPermissions(newPermRequest);
                }
            }
        }
    };

    Session session = new Session.Builder(ctx)
        .setApplicationId(APPLICATION_ID)
        .build();

    Session.setActiveSession(session);

    Log.d("test", "session opened " + session.isOpened());
    if (!session.isOpened()) {
        Session.OpenRequest openRequest = new Session.OpenRequest(ctx);
        openRequest.setPermissions(new String[]{openPermission});
        session.addCallback(callback);
        session.openForRead(openRequest);
    } else {
        callback.call(session, session.getState(), null);
    }
}

This code works fine, except on the very first attempt of a user (when the user never tried any interaction with my application). In this case, session.getPermissions() just returns [], even after the NewPermissionRequest, which ends in an infinite loop, the program keeping asking for publish_action permission.

How can I make it so that the correct permission is given even at first call?