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=-2.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,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 ED1EEECDFB8 for ; Mon, 23 Jul 2018 14:02:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A48F320852 for ; Mon, 23 Jul 2018 14:02:30 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Tjymxdgo" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A48F320852 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388304AbeGWPDw (ORCPT ); Mon, 23 Jul 2018 11:03:52 -0400 Received: from mail-wr1-f66.google.com ([209.85.221.66]:39324 "EHLO mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387999AbeGWPDw (ORCPT ); Mon, 23 Jul 2018 11:03:52 -0400 Received: by mail-wr1-f66.google.com with SMTP id h10-v6so836552wre.6; Mon, 23 Jul 2018 07:02:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=RuY+J0ywTOfTfenYrSZTZk7BFYeQMS8+A6ZswvghFL4=; b=TjymxdgoZ5nMTTw0mPa9EKsZRi80OqE2Ba6VARETaidSn11rp/YQmcHbcPHRlw/E73 F4xVPK3w+QMHZ7d3tjd0i3a4LYkrqfe/4ecQrw0w1w1S7NRZtrj5IxFGwto/ef62Q0Yl /tMDBxX9plo+/+1MCdWrv/7FwbYkLTMgZjMyTs7Y1krKPOTjgaHpv4Z5yaQfIq2TdYAA 5dv38ijX/ubDSo7kqjNww5h2q++RSdQozU33iffO5TM/kfrt4LxnzlVXXyUCQo4LjMZW 5ly1Hf0bE7x8fJDzhWnxVZqcB6o0alPhTX0JoinCdVltOMZ+X+KN6aFEYCdBmOoKrUSy 58oQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=RuY+J0ywTOfTfenYrSZTZk7BFYeQMS8+A6ZswvghFL4=; b=SnfrxiK4Uek7IkTtVLuphqnZjqYZrUqDDXkGB3EC9/dnNn0etvHpL4OKTCmGn/wUl/ qtrun2BeZiRhsSfiqNpSjPJm8zTQ8bzXnzWjk5c5jmxgpX78LidaX0wYfr06y3XYPXgE oWLa7ke2uQmTfDnExArG2xoY8j3Me+73kydm5ED5pabL0qqoDnZvWbtYhznjiwQgwZcX TQSLKyFL1MVdv5R/4haH+qXn6hde8lwkbV6blciwEF62Z4E3mf+Yfrayoywvtl7X89eI rXX8eDaHL0We8uEaDNKJfHGmpcjlxuz19ITjtQoUX1Lf+AWnJu5J3YS9jQ7ihj61xp6o qtzg== X-Gm-Message-State: AOUpUlHitvkZHMhui/XXPe5UBcuY7ZR+svkGhaXfDBmNaznbC9+xp1zB NO9O4AG5SWif+QstNrh2W1I= X-Google-Smtp-Source: AAOMgpet7cAEIhU0Skbr7sfNAjVjHtoXqYXKIwKNQM8jtDbR7RgiQp2KhmZWov9KViy/E8Gp2OlgYw== X-Received: by 2002:adf:bf10:: with SMTP id p16-v6mr8400323wrh.235.1532354546887; Mon, 23 Jul 2018 07:02:26 -0700 (PDT) Received: from localhost.localdomain (static-css-cqn-143221.business.bouyguestelecom.com. [176.149.143.221]) by smtp.gmail.com with ESMTPSA id r16-v6sm4085961wru.59.2018.07.23.07.02.25 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 23 Jul 2018 07:02:26 -0700 (PDT) From: Romain Izard To: Johan Hovold , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Romain Izard , stable Subject: [PATCH] option: Do not try to bind to ADB interfaces Date: Mon, 23 Jul 2018 16:02:20 +0200 Message-Id: <20180723140220.7166-1-romain.izard.pro@gmail.com> X-Mailer: git-send-email 2.17.1 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Some modems now use the Android Debug Bridge to provide a debugging interface, and some phones can also export serial ports managed by the "option" driver. The ADB daemon running in userspace tries to use USB interfaces with bDeviceClass=0xFF, bDeviceSubClass=0x42, bDeviceProtocol=1 Prevent the option driver from binding to those interfaces, as they will not be serial ports. This can fix issues like: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=781256 Signed-off-by: Romain Izard Cc: stable --- drivers/usb/serial/option.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 664e61f16b6a..f98943a57ff0 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -1987,6 +1987,12 @@ static int option_probe(struct usb_serial *serial, if (iface_desc->bInterfaceClass == USB_CLASS_MASS_STORAGE) return -ENODEV; + /* Do not bind Android Debug Bridge interfaces */ + if (iface_desc->bInterfaceClass == USB_CLASS_VENDOR_SPEC && + iface_desc->bInterfaceSubClass == 0x42 && + iface_desc->bInterfaceProtocol == 1) + return -ENODEV; + /* * Don't bind reserved interfaces (like network ones) which often have * the same class/subclass/protocol as the serial interfaces. Look at -- 2.17.1