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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 2760EC3B18C for ; Thu, 13 Feb 2020 16:07:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EA885206ED for ; Thu, 13 Feb 2020 16:07:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581610076; bh=ISIJ810rpefs2a03JAvJn/yTy3CJ2mfQscDg8waXwDs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=na3LifrsJT30mrykPc1p7ka4yW+9Jpn8wgA0bolz/rrBzl9Gf93Gx6NYGGRlX+RLN lL62cUu4L4/IOICXP42wsxlY5Z0VryLDVC4OWAB35M/cQJBJZLdSH59lDiDknhNbT2 hTu6zfNXKfwwFxWUJ2/lKIXWkh+DA/oBwaB5kdXw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730279AbgBMQHz (ORCPT ); Thu, 13 Feb 2020 11:07:55 -0500 Received: from mail.kernel.org ([198.145.29.99]:34094 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728325AbgBMPXQ (ORCPT ); Thu, 13 Feb 2020 10:23:16 -0500 Received: from localhost (unknown [104.132.1.104]) (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 1AF652469C; Thu, 13 Feb 2020 15:23:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581607396; bh=ISIJ810rpefs2a03JAvJn/yTy3CJ2mfQscDg8waXwDs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=dSP3vQogqA/UKaEy5uJMLx/ebDRrqdgOQGlAwI8Nv3Hxb+982sm2NrDUsffYNgIYi a/7on2MfBePfOzUYiQaxXPtXpllqxJC6nldR2nWTxhNVPbObAbf5fx5nqsG+3T0wE6 Hq5ft1pkZWXbP6GiG6JU306506JeJjYmbUjhSVB8= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Oliver Neukum , Johan Hovold , Sean Young , Mauro Carvalho Chehab , Sasha Levin Subject: [PATCH 4.9 001/116] media: iguanair: fix endpoint sanity check Date: Thu, 13 Feb 2020 07:19:05 -0800 Message-Id: <20200213151842.789699352@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200213151842.259660170@linuxfoundation.org> References: <20200213151842.259660170@linuxfoundation.org> User-Agent: quilt/0.66 X-stable: review X-Patchwork-Hint: ignore 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 [ Upstream commit 1b257870a78b0a9ce98fdfb052c58542022ffb5b ] Make sure to use the current alternate setting, which need not be the first one by index, when verifying the endpoint descriptors and initialising the URBs. Failing to do so could cause the driver to misbehave or trigger a WARN() in usb_submit_urb() that kernels with panic_on_warn set would choke on. Fixes: 26ff63137c45 ("[media] Add support for the IguanaWorks USB IR Transceiver") Fixes: ab1cbdf159be ("media: iguanair: add sanity checks") Cc: stable # 3.6 Cc: Oliver Neukum Signed-off-by: Johan Hovold Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Sasha Levin --- drivers/media/rc/iguanair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/rc/iguanair.c b/drivers/media/rc/iguanair.c index 25470395c43f1..246795c315533 100644 --- a/drivers/media/rc/iguanair.c +++ b/drivers/media/rc/iguanair.c @@ -430,7 +430,7 @@ static int iguanair_probe(struct usb_interface *intf, int ret, pipein, pipeout; struct usb_host_interface *idesc; - idesc = intf->altsetting; + idesc = intf->cur_altsetting; if (idesc->desc.bNumEndpoints < 2) return -ENODEV; -- 2.20.1