From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f205.google.com (mail-il1-f205.google.com [209.85.166.205]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 417262F83A2 for ; Fri, 19 Sep 2025 07:33:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.205 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758267213; cv=none; b=D/LKqugRGcDiXNmYHqkQ7v4WLB//yjc63ZAA43RC+HUd3ZjtwQYY0K9pRRIFgdCv9fHu3193SQB6c0I9JjQ2LsZHpE/MaHgE9ap05XLAYjsHUmxaU/ILgKBIs5ltZIkQ4qQ4Kn4lGK1fVvIzP64KvhqixRdo+0s9pGGlKYEyA3Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758267213; c=relaxed/simple; bh=+2TJblT6LHI57S9AzaMiROC9Kq8+LmktTXhZRPyPaVc=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=JK2tttI2wFCKBqYejJXKsXiWy/p8U4ZZOv6cRQOsCrejOf5eD/4OK1rsTrG5Bf5g9mVmGMtiWi+Ji8ow0xS4fWEt8mVFCNwAqTIBrGDFmg+dDKXABS+ysVFNXuaoXFVAlb6mKlZCkcSyqARvw5LDjR3mUWE6dDPaYfSDlEJkfqE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.205 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f205.google.com with SMTP id e9e14a558f8ab-424877bb4caso947735ab.3 for ; Fri, 19 Sep 2025 00:33:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1758267210; x=1758872010; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=iOLMQZh+p8WZQSf5C0CCnZHd4Mr5OtFWTXlqTXn35ho=; b=e0E0DOk6Mxp9uSko7OSGvDZbDAjoqvssgrK5XVs7T1Ix7qAf+8zLmeTm6ISsvszy2g ghtIH/h+B5tl7tTaVRVTYHyX4nuSkSlrVhmyeh5UpYbHGPEpVdHeQq8+skRqpH37qZ9Q nPIQ8iuf0A6x9uZsZI7GgqSHeg0HmNpq62NnzuGTBDop9eH9mxjir8LzJt1Z1SeGFg5w 9Fzez73/hfFS9cObyl3NCG9Vc3TgqJKJ/5JW7vMxU1jQph02Uuotj6NfrTN/JBUoTbdM lbJBbhy8jVMk7tvXAP4sQ5+cXo/4PoUUi3Y+KVxnxkI3j3MeSI8toWMcipSty1+YUziK 6dqQ== X-Forwarded-Encrypted: i=1; AJvYcCXQ2j9TDhO7IKjg4O7jqvvwypzpC7cOivsr60B1U1d673DKUjFWIunk3Kwooo+/PskhAJacEEW0lM4=@vger.kernel.org X-Gm-Message-State: AOJu0Ywn8EbL1n0fWtQsqKXB/GWIcRD0ZIQY9d2QI5C01uf4h6Lhtr6U VeSlNrDMQdG+y9IAxmcosKIlPoXLGiUNiggmjPzsavIMbFWK6c+abYCP7tc2GWq6onpiMAwi7IU yfqxRdtvgczhMGNHtEEbH9EGIh3DdT8RuVMZLj0mKnxYLAEE5yW+VjoGUuxI= X-Google-Smtp-Source: AGHT+IGSIL56u0FooE8IiACmPgSgu3KOpk6TzvSGcyHoh57v+4rqxqX50T0Vun0q8H2sFhjYMKpv5vP99iAaB4z28VfmYrUMEs3c Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:16c7:b0:424:388:6ced with SMTP id e9e14a558f8ab-4248192733bmr40617935ab.14.1758267210259; Fri, 19 Sep 2025 00:33:30 -0700 (PDT) Date: Fri, 19 Sep 2025 00:33:30 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68cd074a.a00a0220.37dadf.0017.GAE@google.com> Subject: [syzbot] [net?] WARNING in dev_shutdown (7) From: syzbot To: davem@davemloft.net, edumazet@google.com, horms@kernel.org, jhs@mojatatu.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: a4d43c1f17b9 Merge 6.17-rc6 into usb-next git tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing console output: https://syzkaller.appspot.com/x/log.txt?x=10a0bb12580000 kernel config: https://syzkaller.appspot.com/x/.config?x=64a9fba56fdb0aef dashboard link: https://syzkaller.appspot.com/bug?extid=c9ecf60a8adb7629821e compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/6eefb11d9e81/disk-a4d43c1f.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/6232f2c26d00/vmlinux-a4d43c1f.xz kernel image: https://storage.googleapis.com/syzbot-assets/8d192b0d2295/bzImage-a4d43c1f.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c9ecf60a8adb7629821e@syzkaller.appspotmail.com asix 3-1:7.204 eth1: unregister 'asix' usb-dummy_hcd.2-1, ASIX AX88178 USB 2.0 Ethernet ------------[ cut here ]------------ WARNING: CPU: 1 PID: 12317 at net/sched/sch_generic.c:1500 dev_shutdown+0x3b6/0x430 net/sched/sch_generic.c:1500 Modules linked in: CPU: 1 UID: 0 PID: 12317 Comm: kworker/1:9 Not tainted syzkaller #0 PREEMPT(voluntary) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025 Workqueue: usb_hub_wq hub_event RIP: 0010:dev_shutdown+0x3b6/0x430 net/sched/sch_generic.c:1500 Code: 48 c7 c2 60 a6 41 88 be a3 00 00 00 48 c7 c7 20 ab 41 88 c6 05 36 08 4e 04 01 e8 85 71 18 fb e9 8f fd ff ff e8 7b 42 3c fb 90 <0f> 0b 90 e9 5f fe ff ff 4c 89 f7 e8 8a 74 9a fb e9 77 fc ff ff 4c RSP: 0018:ffffc90013087498 EFLAGS: 00010283 RAX: 000000000002f429 RBX: ffff8881355c8488 RCX: ffffc9001024c000 RDX: 0000000000100000 RSI: ffffffff8641b875 RDI: ffff8881355c8568 RBP: ffff8881355c8000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff8881355c8438 R13: ffffed1026ab9003 R14: ffff8881355c8480 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff888268ff6000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c37e36c CR3: 00000000090a4000 CR4: 00000000003506f0 Call Trace: unregister_netdevice_many_notify+0xcb6/0x2310 net/core/dev.c:12154 unregister_netdevice_many net/core/dev.c:12229 [inline] unregister_netdevice_queue+0x305/0x3f0 net/core/dev.c:12073 unregister_netdevice include/linux/netdevice.h:3385 [inline] unregister_netdev+0x1f/0x60 net/core/dev.c:12247 usbnet_disconnect+0x109/0x500 drivers/net/usb/usbnet.c:1658 usb_unbind_interface+0x1da/0x9e0 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:571 [inline] device_remove+0x122/0x170 drivers/base/dd.c:563 __device_release_driver drivers/base/dd.c:1274 [inline] device_release_driver_internal+0x44b/0x620 drivers/base/dd.c:1297 bus_remove_device+0x22f/0x420 drivers/base/bus.c:579 device_del+0x396/0x9f0 drivers/base/core.c:3878 usb_disable_device+0x355/0x7d0 drivers/usb/core/message.c:1418 usb_disconnect+0x2e1/0x9c0 drivers/usb/core/hub.c:2344 hub_port_connect drivers/usb/core/hub.c:5406 [inline] hub_port_connect_change drivers/usb/core/hub.c:5706 [inline] port_event drivers/usb/core/hub.c:5870 [inline] hub_event+0x1aa2/0x5060 drivers/usb/core/hub.c:5952 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3236 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3400 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x56d/0x700 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 --- This report 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 issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup