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 93478C2D0BF for ; Mon, 16 Dec 2019 18:15:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 624F820CC7 for ; Mon, 16 Dec 2019 18:15:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576520120; bh=1ZYy98CPAyq93GUIgcw6UU4FpMPiCZDurkn4EcsWQtw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=pzFvv/qw27/+/ib96cXNxLEp7m99OsbRr3vevTPxiFiLVo+/sQpjQebq7Y58rw2Kd i17jYVpREbc4DywLgDM90J6sBu3e2vJgHKc9uvU1PcyEXWfombiQbzRqHQP2wIskfY K64RcN8ToWhovgmeytr+CVjhREldINE+B+J84nFM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731191AbfLPSPT (ORCPT ); Mon, 16 Dec 2019 13:15:19 -0500 Received: from mail.kernel.org ([198.145.29.99]:35948 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731352AbfLPSPQ (ORCPT ); Mon, 16 Dec 2019 13:15:16 -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 2BA7920717; Mon, 16 Dec 2019 18:15:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576520115; bh=1ZYy98CPAyq93GUIgcw6UU4FpMPiCZDurkn4EcsWQtw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=P9iQhcOzuH878yp/Vl6IvC5a2MrnavA4hDroU9FU6WSwRvgYrarEEZAloVHUf8BcB xp8t/druUfdgJaeJgnfe4OBXlmB5Sm0OMKMVruB2dBJcgbIdNlsQzIwPTN5nLU4l+H iRYEZHGZsf0jrJLsjf7naxnjRW8f8RISoPJlMz00= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold Subject: [PATCH 5.4 022/177] staging: rtl8712: fix interface sanity check Date: Mon, 16 Dec 2019 18:47:58 +0100 Message-Id: <20191216174818.777829449@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 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 @@ -247,7 +247,7 @@ static uint r8712_usb_dvobj_init(struct pdvobjpriv->padapter = padapter; padapter->eeprom_address_size = 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) {