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,URIBL_BLOCKED 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 1983BC10F13 for ; Sun, 14 Apr 2019 20:06:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E2AEC20850 for ; Sun, 14 Apr 2019 20:06:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726810AbfDNUGI (ORCPT ); Sun, 14 Apr 2019 16:06:08 -0400 Received: from mail-it1-f198.google.com ([209.85.166.198]:44479 "EHLO mail-it1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726990AbfDNUGH (ORCPT ); Sun, 14 Apr 2019 16:06:07 -0400 Received: by mail-it1-f198.google.com with SMTP id v193so14100141itv.9 for ; Sun, 14 Apr 2019 13:06:07 -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=mnR1ARR6w9OS6jp8tpfEg3THUER7MsGlQPhDdl9c5kg=; b=TfYxg/dzdVnKp+BkUqXuMjIP3z0RkxhxPfVHHa/kZaPjPfTXJX81upNt+RZu3nC6wt mZJMmLZlWgjbGehjsHZuiNEA/fNudqggnXS6oqz0mqHBUp4mT0msYxKpBZ9/7qNdrxaU Or21YPtPZjRXyUCyUNw4QK+P4LgyahsbzuZ8NhYlTWu/Nw5Wx5uf64BW38T++3SfAgR1 PJ+MJOxm9FEyKSj4MaThuf0c/xdDf825iGvgCXm44UGo0dl0dEGF8/8B5mhAtc32cC/U zPpfW98spgwF1hUwhnFPVMdGYaKDd9fIpoS3jdaaVK59AyBgt37pE8WseVWWftzQXi9O kdWg== X-Gm-Message-State: APjAAAW9oqTKrHWjpRANsPcJWcBgRLO/W6HEMqZIQEgwwH3WRGlgWveu 0qKf9NGhnMrCubqj26zVReVfN1GgoygstTIBkmeJirokk9K3 X-Google-Smtp-Source: APXvYqxqs84iZ08v63U6oexgvaJ2ok316NHmTXOF8W++PKF54u79U05tURbtHj7j9dkvuYjfJZPV08oAmFp2g0QmAl616Zf8Qatx MIME-Version: 1.0 X-Received: by 2002:a6b:720b:: with SMTP id n11mr3413980ioc.3.1555272366966; Sun, 14 Apr 2019 13:06:06 -0700 (PDT) Date: Sun, 14 Apr 2019 13:06:06 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f64e71058683105b@google.com> Subject: INFO: trying to register non-static key in mxl111sf_ctrl_msg From: syzbot To: andreyknvl@google.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-usb@vger.kernel.org, mchehab@kernel.org, mkrufky@linuxtv.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=1613e4f3200000 kernel config: https://syzkaller.appspot.com/x/.config?x=23e37f59d94ddd15 dashboard link: https://syzkaller.appspot.com/bug?extid=5ca0bf339f13c4243001 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1259bedd200000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12763bbb200000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+5ca0bf339f13c4243001@syzkaller.appspotmail.com usb 1-1: dvb_usb_v2: found a 'Hauppauge 117xxx DVBT' in warm state usb 1-1: dvb_usb_v2: will pass the complete MPEG2 transport stream to the software demuxer dvbdev: DVB: registering new adapter (Hauppauge 117xxx DVBT) usb 1-1: selecting invalid altsetting 2 set interface failed INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. CPU: 0 PID: 12 Comm: kworker/0:1 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 mxl111sf_ctrl_msg+0xc7/0x250 drivers/media/usb/dvb-usb-v2/mxl111sf.c:69 mxl111sf_write_reg+0x9f/0x160 drivers/media/usb/dvb-usb-v2/mxl111sf.c:126 mxl1x1sf_soft_reset+0x70/0x190 drivers/media/usb/dvb-usb-v2/mxl111sf-phy.c:56 mxl111sf_attach_demod+0x291/0x770 drivers/media/usb/dvb-usb-v2/mxl111sf.c:768 dvb_usbv2_adapter_frontend_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:654 [inline] dvb_usbv2_adapter_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:817 [inline] dvb_usbv2_init drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:878 [inline] dvb_usbv2_probe.cold+0x2170/0x29f6 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:993 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 ? p --- 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