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=-5.6 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_PASS 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 88527C10F13 for ; Sun, 14 Apr 2019 19:56:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 643DB20848 for ; Sun, 14 Apr 2019 19:56:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727239AbfDNT4U (ORCPT ); Sun, 14 Apr 2019 15:56:20 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:33814 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726308AbfDNT4G (ORCPT ); Sun, 14 Apr 2019 15:56:06 -0400 Received: by mail-io1-f70.google.com with SMTP id y13so12627957iol.1 for ; Sun, 14 Apr 2019 12:56:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=U2tPvtbFi8gH/NJ70CtiTDqglAZX32uDg8WawLuOVpk=; b=JljPSalY+0Y5jk79xlxbJ4AtI+SlHimtDxYoa8B2cMNUwnksyeFJ9/TCtkhIyO654l LUtX25lbOsR2KCp50mOtTmp+1+QkYCirw0iREUw4UClUXD41TBA5JsF60vYYQErwrKlr s8HFHrJkN0TkXBiqgda82L3fCXhF5iCXAXZbSGh1GutubPkQdqD/pRM16E1G/Za2WIxV kao969q/Xh54V8lSTHxi2olhpKcP/Pm7VFNh8zjJ5XTDO5lmRQJPD68b53wz6v3C8qb9 T9Wf1Qhi0tZogpW71Qcm9LIKpO6r2olxfEn4xAzyrWctTqeH9Cx3icl6qCtRiYpojJte dGQQ== X-Gm-Message-State: APjAAAUmTS2YJ5koIRagWJVrd07bbbOB8mZzUGF4sdKQBDvMBhcl78Sz LssDIlRTljIsKg0eFPhkHE//MfyApGVP5B85xC89VBd2NBvg X-Google-Smtp-Source: APXvYqxoZPS0HA1Br6PxZwvKME0V9mIzINVhaFLzqLaexNWjely+BkGIyPUV9Yaw3LOhrXmtoPceNFB5dea2bBUVwDrBl4BdrMTh MIME-Version: 1.0 X-Received: by 2002:a24:56cf:: with SMTP id o198mr6037053itb.12.1555271765852; Sun, 14 Apr 2019 12:56:05 -0700 (PDT) Date: Sun, 14 Apr 2019 12:56:05 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000220d72058682edb2@google.com> Subject: INFO: trying to register non-static key in ni6501_detach From: syzbot To: abbotti@mev.co.uk, andreyknvl@google.com, devel@driverdev.osuosl.org, gregkh@linuxfoundation.org, hsweeten@visionengravers.com, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 9a33b369 usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan/tree/usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=10e2e69f200000 kernel config: https://syzkaller.appspot.com/x/.config?x=23e37f59d94ddd15 dashboard link: https://syzkaller.appspot.com/bug?extid=cf4f2b6c24aff0a3edf6 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1093c6bf200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10df67c3200000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+cf4f2b6c24aff0a3edf6@syzkaller.appspotmail.com usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? usb 1-1: string descriptor 0 read error: -71 comedi comedi0: Wrong number of endpoints ni6501 1-1:0.233: driver 'ni6501' failed to auto-configure device. INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 585 Comm: kworker/0:3 Not tainted 5.1.0-rc4-319354-g9a33b36 #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0xe8/0x16e lib/dump_stack.c:113 assign_lock_key kernel/locking/lockdep.c:786 [inline] register_lock_class+0x11b8/0x1250 kernel/locking/lockdep.c:1095 __lock_acquire+0xfb/0x37c0 kernel/locking/lockdep.c:3582 lock_acquire+0x10d/0x2f0 kernel/locking/lockdep.c:4211 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xfe/0x12b0 kernel/locking/mutex.c:1072 ni6501_detach+0x5b/0x110 drivers/staging/comedi/drivers/ni_usb6501.c:567 comedi_device_detach+0xed/0x800 drivers/staging/comedi/drivers.c:204 comedi_device_cleanup.part.0+0x68/0x140 drivers/staging/comedi/comedi_fops.c:156 comedi_device_cleanup drivers/staging/comedi/comedi_fops.c:187 [inline] comedi_free_board_dev.part.0+0x16/0x90 drivers/staging/comedi/comedi_fops.c:190 comedi_free_board_dev drivers/staging/comedi/comedi_fops.c:189 [inline] comedi_release_hardware_device+0x111/0x140 drivers/staging/comedi/comedi_fops.c:2880 comedi_auto_config.cold+0x124/0x1b0 drivers/staging/comedi/drivers.c:1068 usb_probe_interface+0x31d/0x820 drivers/usb/core/driver.c:361 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_set_configuration+0xdf7/0x1740 drivers/usb/core/message.c:2021 generic_probe+0xa2/0xda drivers/usb/core/generic.c:210 usb_probe_device+0xc0/0x150 drivers/usb/core/driver.c:266 really_probe+0x2da/0xb10 drivers/base/dd.c:509 driver_probe_device+0x21d/0x350 drivers/base/dd.c:671 __device_attach_driver+0x1d8/0x290 drivers/base/dd.c:778 bus_for_each_drv+0x163/0x1e0 drivers/base/bus.c:454 __device_attach+0x223/0x3a0 drivers/base/dd.c:844 bus_probe_device+0x1f1/0x2a0 drivers/base/bus.c:514 device_add+0xad2/0x16e0 drivers/base/core.c:2106 usb_new_device.cold+0x537/0xccf drivers/usb/core/hub.c:2534 hub_port_connect drivers/usb/core/hub.c:5089 [inline] hub_port_connect_change drivers/usb/core/hub.c:5204 [inline] port_event drivers/usb/core/hub.c:5350 [inline] hub_event+0x138e/0x3b00 drivers/usb/core/hub.c:5432 process_one_work+0x90f/0x1580 kernel/workqueue.c:2269 worker_thread+0x9b/0xe20 kernel/workqueue.c:2415 kthread+0x313/0x420 kernel/kthread.c:253 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches