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 A6623C2D0DB for ; Thu, 30 Jan 2020 18:47:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7D8C12082E for ; Thu, 30 Jan 2020 18:47:25 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580410045; bh=w4eLji9sqIIGNFzqVjNSFcaL2LFvT7gV+thnRkoZ9Fw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=KF+Ua5Cm1n4+b2NACZccNgpNDJZhyMe6NEZ458iFUzqqwCN82IJ6q9SkfyhBbLkLs 4sqU1pGgP8E8vQDM4uYfdUG8etXP72V57d8IVF93x6W2gJJUWhRQs2WpjTpSShWi2b Rx5X4L/P2RTCBImi3gX8lAF5Yq4Kyrn58G2tOACE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731371AbgA3SrY (ORCPT ); Thu, 30 Jan 2020 13:47:24 -0500 Received: from mail.kernel.org ([198.145.29.99]:57842 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731353AbgA3SrR (ORCPT ); Thu, 30 Jan 2020 13:47:17 -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 1872220674; Thu, 30 Jan 2020 18:47:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580410037; bh=w4eLji9sqIIGNFzqVjNSFcaL2LFvT7gV+thnRkoZ9Fw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jvQm2eF4J8qM+AmhZAA9EXB4yABHO4lcJzLxv+s+O74K1KG/2gRnAaFRgPbuopYAE JknoFKdlFOAVDLzkdhnmUpmtXXLoXOhot4UcjqvGm7dxq+TGgYTdHqpU7gZJI2rfY1 98i3mwW5wcNCvOasRO9OEMeSNYmcUOMw7bqx0djE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Johan Hovold , Kalle Valo Subject: [PATCH 4.19 22/55] zd1211rw: fix storage endpoint lookup Date: Thu, 30 Jan 2020 19:39:03 +0100 Message-Id: <20200130183612.869441958@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200130183608.563083888@linuxfoundation.org> References: <20200130183608.563083888@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 2d68bb2687abb747558b933e80845ff31570a49c upstream. Make sure to use the current alternate setting when verifying the storage interface descriptors to avoid submitting an URB to an invalid endpoint. 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: a1030e92c150 ("[PATCH] zd1211rw: Convert installer CDROM device into WLAN device") Cc: stable # 2.6.19 Signed-off-by: Johan Hovold Signed-off-by: Kalle Valo Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/zydas/zd1211rw/zd_usb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/net/wireless/zydas/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zydas/zd1211rw/zd_usb.c @@ -1275,7 +1275,7 @@ static void print_id(struct usb_device * static int eject_installer(struct usb_interface *intf) { struct usb_device *udev = interface_to_usbdev(intf); - struct usb_host_interface *iface_desc = &intf->altsetting[0]; + struct usb_host_interface *iface_desc = intf->cur_altsetting; struct usb_endpoint_descriptor *endpoint; unsigned char *cmd; u8 bulk_out_ep;