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=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 24712C3A5A5 for ; Tue, 3 Sep 2019 12:08:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F0CF9208E4 for ; Tue, 3 Sep 2019 12:08:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729192AbfICMIR (ORCPT ); Tue, 3 Sep 2019 08:08:17 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:38238 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729091AbfICMIL (ORCPT ); Tue, 3 Sep 2019 08:08:11 -0400 Received: by mail-io1-f70.google.com with SMTP id m5so9985951ioj.5 for ; Tue, 03 Sep 2019 05:08:10 -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=CxUZjygCpasgBPF+y6oi8xFjs0AF9HB9H4iCmjReROA=; b=UI3Hph1A9GKQpxbYsnTmATeCHouzhqnTv8eIs8FcEtwii4wXc/MzAQBo2724dLX/PD TWRCv0o6w61S/ELYBnPGVRK+B/LiaPqbPV1eBP+vOBB1szE5R3f8TeQ8uX1wIpgEwqRV hg2I/JrkuPafwHE+RJ8YnTXU7z66W2sSqQYcv76n0fw1367/y78FZeknLRgoKerH+Fdw gt7WjDwtn8kfYKVILP4xyruldM9vLDrnlZYlz5kYia1kV0RdDycaqHFaLphinicOdx0w 5sRzW7vIodqFFiYQjy0MvLWKL8xd2uheJtc0xaKl/9vTtHeyesy13DlJS5vecHyFg+v0 29FA== X-Gm-Message-State: APjAAAWIWerNo8GcOCFCt3cu/tLWMm+X8Q+3VrHQtXU8lGoOSE1Im1O/ KhYOin/TnKtmqdt+WK71Nr0BAECvBjJVzAr/DovoYqfWTwjr X-Google-Smtp-Source: APXvYqxJaDVBHS+iGbOfAA2e4mOzogSUuWdHkrWEZqKdilXl6J5OAzbdJdVyXU1F8zsOLcuxFRx7RNEyHuu2a2/6l2VRLzfXwaYU MIME-Version: 1.0 X-Received: by 2002:a02:81c5:: with SMTP id r5mr37662960jag.143.1567512490314; Tue, 03 Sep 2019 05:08:10 -0700 (PDT) Date: Tue, 03 Sep 2019 05:08:10 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002a95df0591a4f114@google.com> Subject: WARNING in hso_free_net_device From: syzbot To: alexios.zavras@intel.com, andreyknvl@google.com, benquike@gmail.com, davem@davemloft.net, gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, mathias.payer@nebelwelt.net, netdev@vger.kernel.org, rfontana@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de 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: eea39f24 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=15f17e61600000 kernel config: https://syzkaller.appspot.com/x/.config?x=d0c62209eedfd54e dashboard link: https://syzkaller.appspot.com/bug?extid=44d53c7255bb1aea22d2 compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10ffdd12600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15a738fe600000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+44d53c7255bb1aea22d2@syzkaller.appspotmail.com usb 1-1: config 0 has no interface number 0 usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? hso 1-1:0.15: Can't find BULK IN endpoint ------------[ cut here ]------------ WARNING: CPU: 1 PID: 83 at net/core/dev.c:8167 rollback_registered_many.cold+0x41/0x1bc net/core/dev.c:8167 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.3.0-rc5+ #28 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 panic+0x2a3/0x6da kernel/panic.c:219 __warn.cold+0x20/0x4a kernel/panic.c:576 report_bug+0x262/0x2a0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:272 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:rollback_registered_many.cold+0x41/0x1bc net/core/dev.c:8167 Code: ff e8 c7 26 90 fc 48 c7 c7 40 ec 63 86 e8 24 c8 7a fc 0f 0b e9 93 be ff ff e8 af 26 90 fc 48 c7 c7 40 ec 63 86 e8 0c c8 7a fc <0f> 0b 4c 89 e7 e8 f9 12 34 fd 31 ff 41 89 c4 89 c6 e8 bd 27 90 fc RSP: 0018:ffff8881d934f088 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff8881d2ad4400 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81288cfd RDI: ffffed103b269e03 RBP: ffff8881d934f1b8 R08: 0000000000000024 R09: fffffbfff11ad794 R10: fffffbfff11ad793 R11: ffffffff88d6bc9f R12: ffff8881d2ad4470 R13: ffff8881d934f148 R14: dffffc0000000000 R15: 0000000000000000 rollback_registered+0xf2/0x1c0 net/core/dev.c:8243 unregister_netdevice_queue net/core/dev.c:9290 [inline] unregister_netdevice_queue+0x1d7/0x2b0 net/core/dev.c:9283 unregister_netdevice include/linux/netdevice.h:2631 [inline] unregister_netdev+0x18/0x20 net/core/dev.c:9331 hso_free_net_device+0xff/0x300 drivers/net/usb/hso.c:2366 hso_create_net_device+0x76d/0x9c0 drivers/net/usb/hso.c:2554 hso_probe+0x28d/0x1a46 drivers/net/usb/hso.c:2931 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:361 really_probe+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x101/0x1b0 drivers/base/dd.c:721 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:894 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2165 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+0x281/0x6d0 drivers/base/dd.c:548 driver_probe_device+0x101/0x1b0 drivers/base/dd.c:721 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:828 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:454 __device_attach+0x217/0x360 drivers/base/dd.c:894 bus_probe_device+0x1e4/0x290 drivers/base/bus.c:514 device_add+0xae6/0x16f0 drivers/base/core.c:2165 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 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352 Kernel Offset: disabled Rebooting in 86400 seconds.. --- 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