From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DBE8CC2D0C3 for ; Mon, 16 Dec 2019 18:39:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AB70C20665 for ; Mon, 16 Dec 2019 18:39:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576521575; bh=Q6IPlbKphm9Ek82Zr/DSnj+WRQWNrsOn12LL6QQn+jg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=MSdV0JqDIVpbVXr3ZL1rh9tIKNlhrFY7Q4+tPbvbxrKLyfWp336B5LYH8dSe2jOcd ransyEShP6HcEEtq/fP92hBkaCQGRaeNcGwBmS9b5pZVLziQxTLjEsJ7aLE0VBl0DK S0qu74108R7TymWsUkQerPszpTf26Ru30qbjm+Q4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729508AbfLPSDb (ORCPT ); Mon, 16 Dec 2019 13:03:31 -0500 Received: from mail.kernel.org ([198.145.29.99]:40006 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729280AbfLPSDU (ORCPT ); Mon, 16 Dec 2019 13:03:20 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 2DE8B2072D; Mon, 16 Dec 2019 18:03:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576519399; bh=Q6IPlbKphm9Ek82Zr/DSnj+WRQWNrsOn12LL6QQn+jg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=emTF5Qphi2K/Jrj9LNtU7xDYzlzTbqOfIb4oUgY4xN9sn2Oqu8CUaUzYEPm4t0jKm WCO6yFSnKCvF1hLW5ygbE0gCuFWR8VC5DEwh5Htb0Yn9WxBw2eEeB6Qrs9XaYHwusr 30iuHiw0UePukD5Dx0UNW2M9UN6xREjofFgos/Cg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold Subject: [PATCH 4.19 013/140] staging: gigaset: add endpoint-type sanity check Date: Mon, 16 Dec 2019 18:48:01 +0100 Message-Id: <20191216174754.265077397@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191216174747.111154704@linuxfoundation.org> References: <20191216174747.111154704@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Johan Hovold commit ed9ed5a89acba51b82bdff61144d4e4a4245ec8a upstream. Add missing endpoint-type sanity checks to probe. This specifically prevents a warning in USB core on URB submission when fuzzing USB descriptors. Signed-off-by: Johan Hovold Cc: stable Link: https://lore.kernel.org/r/20191202085610.12719-4-johan@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/isdn/gigaset/usb-gigaset.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) --- a/drivers/isdn/gigaset/usb-gigaset.c +++ b/drivers/isdn/gigaset/usb-gigaset.c @@ -708,6 +708,12 @@ static int gigaset_probe(struct usb_inte endpoint = &hostif->endpoint[0].desc; + if (!usb_endpoint_is_bulk_out(endpoint)) { + dev_err(&interface->dev, "missing bulk-out endpoint\n"); + retval = -ENODEV; + goto error; + } + buffer_size = le16_to_cpu(endpoint->wMaxPacketSize); ucs->bulk_out_size = buffer_size; ucs->bulk_out_epnum = usb_endpoint_num(endpoint); @@ -727,6 +733,12 @@ static int gigaset_probe(struct usb_inte endpoint = &hostif->endpoint[1].desc; + if (!usb_endpoint_is_int_in(endpoint)) { + dev_err(&interface->dev, "missing int-in endpoint\n"); + retval = -ENODEV; + goto error; + } + ucs->busy = 0; ucs->read_urb = usb_alloc_urb(0, GFP_KERNEL);