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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,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 E6DB0C7618B for ; Mon, 29 Jul 2019 16:58:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C9DA221655 for ; Mon, 29 Jul 2019 16:58:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387689AbfG2Q6L (ORCPT ); Mon, 29 Jul 2019 12:58:11 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:33618 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726958AbfG2Q6I (ORCPT ); Mon, 29 Jul 2019 12:58:08 -0400 Received: by mail-io1-f72.google.com with SMTP id 132so68173085iou.0 for ; Mon, 29 Jul 2019 09:58:07 -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=zYSkCumP1m3hb2mgGhDNo5Y0jDgglbE754iR6vBUBG0=; b=aVT1N6EKV04E43mgYT+ARty+Xiy3sGa6JRv7sL0L/yIuCtMQIGR1tEGgV6NwoLNDaA UhAp46XSd4iJngOaMA+ia4BCNFnDTXRPMqofgbNNFeIf8xwbZg70C47bZ/6m9omy92AA v68R5aXKJonstoxU0HwrKz57TimYwuAEGsCpdbFxNMUN42iZWqjc+P5xamokZiKdJ58H 2MWVXaqxoYurIkud21HoElNW3oc+t3MbxfBgOikYRUqfwuKXMHFE0OKwFgCAOO5+PSO2 qhrvMaTcJB3y6zw2BLRdPvMEkSEH5kMewLjYjtmAdO6mNTQuYQRENaji3cvVBwS2Quzp U6Kw== X-Gm-Message-State: APjAAAWBYMqoxKSXHrv2BchBe894M1R8yN128CCZvhWSUsMbSomrpeAB AYFE3T2wc7miS+ZZGKDupVsAIjou/mO9ou08k2LDRK6ZR2cY X-Google-Smtp-Source: APXvYqwuAgYNcogscmSVDpjnPxCyHn2aBg3ZoPD8eQBq+t81HbZYsudho/QxwG2zDw+sZzNmhiXgQ+5V54xCJdOGzWLkw7wZrAaz MIME-Version: 1.0 X-Received: by 2002:a5d:94d7:: with SMTP id y23mr80916050ior.296.1564419487345; Mon, 29 Jul 2019 09:58:07 -0700 (PDT) Date: Mon, 29 Jul 2019 09:58:07 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000d2b175058ed4cb3f@google.com> Subject: INFO: trying to register non-static key in ida_destroy From: syzbot To: andreyknvl@google.com, laurent.pinchart@ideasonboard.com, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-usb@vger.kernel.org, mchehab@kernel.org, sakari.ailus@linux.intel.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 7f7867ff usb-fuzzer: main usb gadget fuzzer driver git tree: https://github.com/google/kasan.git usb-fuzzer console output: https://syzkaller.appspot.com/x/log.txt?x=16ee1d7c600000 kernel config: https://syzkaller.appspot.com/x/.config?x=792eb47789f57810 dashboard link: https://syzkaller.appspot.com/bug?extid=c86454eb3af9e8a4da20 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15eacab4600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=178293c8600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+c86454eb3af9e8a4da20@syzkaller.appspotmail.com usb 1-1: config 0 interface 197 altsetting 0 bulk endpoint 0xA has invalid maxpacket 0 usb 1-1: New USB device found, idVendor=972f, idProduct=41a3, bcdDevice=d9.98 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? 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 5.3.0-rc2+ #23 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+0xca/0x13e lib/dump_stack.c:113 assign_lock_key kernel/locking/lockdep.c:813 [inline] register_lock_class+0x1022/0x11d0 kernel/locking/lockdep.c:1122 __lock_acquire+0xfc/0x3b50 kernel/locking/lockdep.c:3762 lock_acquire+0x127/0x320 kernel/locking/lockdep.c:4412 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x32/0x50 kernel/locking/spinlock.c:159 ida_destroy+0xb0/0x3a0 lib/idr.c:551 media_device_cleanup+0x15/0x70 drivers/media/mc/mc-device.c:722 uvc_delete+0x8e/0x2f0 drivers/media/usb/uvc/uvc_driver.c:1872 kref_put include/linux/kref.h:65 [inline] uvc_probe+0xf95/0x64e4 drivers/media/usb/uvc/uvc_driver.c:2223 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361 really_probe+0x281/0x650 drivers/base/dd.c:548 driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816 bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:882 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2114 usb_set_configuration+0xdf6/0x1670 drivers/usb/core/message.c:2023 generic_probe+0x9d/0xd5 drivers/usb/core/generic.c:210 usb_probe_device+0x99/0x100 drivers/usb/core/driver.c:266 really_probe+0x281/0x650 drivers/base/dd.c:548 driver_probe_device+0x101/0x1b0 drivers/base/dd.c:709 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:816 bus_for_each_drv+0x15c/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:882 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2114 usb_new_device.cold+0x6a4/0xe79 drivers/usb/core/hub.c:2536 hub_port_connect drivers/usb/core/hub.c:5098 [inline] hub_port_connect_change drivers/usb/core/hub.c:5213 [inline] port_event drivers/usb/core/hub.c:5359 [inline] hub_event+0x1b5c/0x3640 drivers/usb/core/hub.c:5441 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269 worker_thread+0x96/0xe20 kernel/workqueue.c:2415 kthread+0x318/0x420 kernel/kthread.c:255 --- 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