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=ham 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 D94D4C2D0BF for ; Mon, 16 Dec 2019 18:27:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A7354206EC for ; Mon, 16 Dec 2019 18:27:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576520874; bh=9cbr/GasuS7QSyHWgJSVGLmTNURye9a+SzXMS0zRzyU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=RKhVCsBgG+ehEalYaTk1xUrP4PsmKNpcG68NwSKweXzlNN509uHL/pMvlX4KDnHP2 AsFHJ786ZrMKaVeSmxrntwImo/dKCrWV0eB+ufNBjf1t1RM86DrxOEwaIjiq7992Hp d0IcTlnGmsn1q5wkjlHtYLBEQsl+jQIoKX9Z6OY8= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731373AbfLPSPV (ORCPT ); Mon, 16 Dec 2019 13:15:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:35838 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731343AbfLPSPN (ORCPT ); Mon, 16 Dec 2019 13:15:13 -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 BA8AE20717; Mon, 16 Dec 2019 18:15:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576520113; bh=9cbr/GasuS7QSyHWgJSVGLmTNURye9a+SzXMS0zRzyU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=DXaCKEDaGYQX4EeFlpaGh51gHZmtT5SWqyvm35QZp8SEueF/ZT4F6boz6aZEprZGm kYzmOUYiOpP6pjSApFVDQmUUUZ/l72McNrqwGwYQ71ou38gsV37Y36z0JfUiaiuuuh 5ldNwX8rgfmfwx4VP0Bomesb7InKi/ok2lqeYWEI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold Subject: [PATCH 5.4 021/177] staging: rtl8188eu: fix interface sanity check Date: Mon, 16 Dec 2019 18:47:57 +0100 Message-Id: <20191216174817.345744414@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191216174811.158424118@linuxfoundation.org> References: <20191216174811.158424118@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 74ca34118a0e05793935d804ccffcedd6eb56596 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: c2478d39076b ("staging: r8188eu: Add files for new driver - part 20") Cc: stable # 3.12 Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20191210114751.5119-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8188eu/os_dep/usb_intf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c +++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c @@ -70,7 +70,7 @@ static struct dvobj_priv *usb_dvobj_init phost_conf = pusbd->actconfig; pconf_desc = &phost_conf->desc; - phost_iface = &usb_intf->altsetting[0]; + phost_iface = usb_intf->cur_altsetting; piface_desc = &phost_iface->desc; pdvobjpriv->NumInterfaces = pconf_desc->bNumInterfaces;