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 3FA69C43603 for ; Mon, 16 Dec 2019 18:02:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 15B592082E for ; Mon, 16 Dec 2019 18:02:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576519371; bh=pMddC1IxYZNUa4z6kDPSLVuBkG4EzoSj4SwhIGjUhYw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Wk5l62HbRh/7zn/abxVBsAmM3Hd1kcCG0HthX+YxKE/09tg016w4TflhpLWeJg1Vc RrZhVikUxjp5B5/DCPBPmiEPVSflfp8+iagUXsdH/x8v+N36G0hFeMSFluwlf+76z3 rezlBsWK0bG5E8NibsO4K/AgoXQvazCUMn6m4i/c= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729406AbfLPSCu (ORCPT ); Mon, 16 Dec 2019 13:02:50 -0500 Received: from mail.kernel.org ([198.145.29.99]:38970 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729392AbfLPSCs (ORCPT ); Mon, 16 Dec 2019 13:02:48 -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 327C8207FF; Mon, 16 Dec 2019 18:02:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576519367; bh=pMddC1IxYZNUa4z6kDPSLVuBkG4EzoSj4SwhIGjUhYw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=15LnTijuZD8GrpcuKWc8Ba0+PvB6qSmq037fP4YlqRJu2ZER0r4UpLguhBhbR09JD RsKJY9tfd9dh2/y7pbXJcuJDWQ+vOLSu3bAMQluFCsdpSC/Iudg9D4nzlPTV1JX242 t6eJrn6fWadwQOBlGwbzSM9j/kHcFUhHnSLM9VMU= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold Subject: [PATCH 4.19 010/140] staging: rtl8712: fix interface sanity check Date: Mon, 16 Dec 2019 18:47:58 +0100 Message-Id: <20191216174751.753302920@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 c724f776f048538ecfdf53a52b7a522309f5c504 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: 2865d42c78a9 ("staging: r8712u: Add the new driver to the mainline kernel") Cc: stable # 2.6.37 Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20191210114751.5119-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8712/usb_intf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/staging/rtl8712/usb_intf.c +++ b/drivers/staging/rtl8712/usb_intf.c @@ -275,7 +275,7 @@ static uint r8712_usb_dvobj_init(struct pdvobjpriv->padapter = padapter; padapter->EepromAddressSize = 6; - phost_iface = &pintf->altsetting[0]; + phost_iface = pintf->cur_altsetting; piface_desc = &phost_iface->desc; pdvobjpriv->nr_endpoint = piface_desc->bNumEndpoints; if (pusbd->speed == USB_SPEED_HIGH) {