From patchwork Thu Jan 30 18:38:20 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 232300 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 C6CBDC33CB3 for ; Thu, 30 Jan 2020 18:54:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 939FF2082E for ; Thu, 30 Jan 2020 18:54:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580410450; bh=rkr4v3w3gcxDIUGXLSQY/xRcj719qPpxS+Rw5Z/tExw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=j7TE8wlbFHA122joz7H3CINtstnhdlfJIuVqOO4wC4Qkl8lVoXYq/nMHdTxoLJEtF +BBzRzfBg/g+j2gNqh1Cx7fgtTvHNtkf91gT2ItFFnJuRyiioRBRGafoXCvzZQRNrm n81wqJ+i/hqwXrUmrT7uMfQhRSmsDfUOflf0PfHU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730002AbgA3Skk (ORCPT ); Thu, 30 Jan 2020 13:40:40 -0500 Received: from mail.kernel.org ([198.145.29.99]:48288 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729998AbgA3Skj (ORCPT ); Thu, 30 Jan 2020 13:40:39 -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 3A056214AF; Thu, 30 Jan 2020 18:40:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580409638; bh=rkr4v3w3gcxDIUGXLSQY/xRcj719qPpxS+Rw5Z/tExw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OfURQWrCKR6Htx+ErE1vnOjewcuENDSoOYgDCKT4SpatI6Cp3gKDfKLZLdXp+F1HI ccabYkVbTHggmSYRP6PYVTa8oYSqikHUnRHqU/P2PPHpVbJw6YG0Sht8b+0RhCTUg+ XOmgQEAIkSmYJtW1FhDS9CEYcIH8I2bgO/XFKTxg= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Fariya Fatima , Johan Hovold , Kalle Valo Subject: [PATCH 5.5 03/56] rsi_91x_usb: fix interface sanity check Date: Thu, 30 Jan 2020 19:38:20 +0100 Message-Id: <20200130183609.620360187@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200130183608.849023566@linuxfoundation.org> References: <20200130183608.849023566@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Johan Hovold commit 3139b180906af43bc09bd3373fc2338a8271d9d9 upstream. Make sure to use the current alternate setting when verifying the interface descriptors to avoid binding to an invalid interface. 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: dad0d04fa7ba ("rsi: Add RS9113 wireless driver") Cc: stable # 3.15 Cc: Fariya Fatima Signed-off-by: Johan Hovold Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/rsi/rsi_91x_usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/wireless/rsi/rsi_91x_usb.c +++ b/drivers/net/wireless/rsi/rsi_91x_usb.c @@ -117,7 +117,7 @@ static int rsi_find_bulk_in_and_out_endp __le16 buffer_size; int ii, bin_found = 0, bout_found = 0; - iface_desc = &(interface->altsetting[0]); + iface_desc = interface->cur_altsetting; for (ii = 0; ii < iface_desc->desc.bNumEndpoints; ++ii) { endpoint = &(iface_desc->endpoint[ii].desc);