From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f72.google.com (mail-oa1-f72.google.com [209.85.160.72]) (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 979521E1024 for ; Fri, 30 Jan 2026 09:38:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769765886; cv=none; b=EamxzLvyJ0ayTe5IJ1xw8E5wVxKGZinUGJvyQDlC5ZmcvCyfWTeyUL9AsOYatjHZNcNat41d3pHn9xN+yTS8oru0yPGpsa9JLnbFH5czDRoeaDX4/kIzIVjT6acTmi6Ze/zKzkWwOvIClBHLG9+D0IT4wp6LsLSrPnh0xx4wtSg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769765886; c=relaxed/simple; bh=CU05YjQbaCr39HITZIpuA4gKbizBVYCaXrcAA/C5T8w=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=MyCyGKP3oqjq/eDNrl+15CymxUdbs7YDqaxhgn78t3jR2RzVvklt5xVFBrCbsyVGNt+92XF+090oqA3aOdWnpuHrIIQLZu/FQcci1PqZ5wlXebYzKd6ul9JZ2VgOtCfPmmdqlmitZsKullC8EwK57JnSHrf9Vn0J7jbHXW9nCD0= 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=209.85.160.72 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-oa1-f72.google.com with SMTP id 586e51a60fabf-409698ea4dbso6116708fac.0 for ; Fri, 30 Jan 2026 01:38:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769765883; x=1770370683; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=+QG1OMW+rByqs0sg1oy8fWc+UXA+m9rU7hxCtPC4iDA=; b=T5mHQcyeVjoredlvno8IL0mHJTh9EeALAwqcoVLcwwOYZ9LZwUszUydYHS+ATlZik9 quBuiPu/Gi04LvBG0qDJcg0ZySbrnM5aBqh5qon7C3hTWKC1z/nFZ/6kwTtJlU3Dyqay 9jIIFDWsu4Fe8+l9rn5L3hl5VX5V1SJDunBCIamFjmnFYf1tDHRfgfRbk/Fd7iukavka zqveIN/jNUA74CuYTFVaDVeCm5GrDqmHUmmVnfakDO3RWW1UNBjCyvJ6MfTlcYaeMJkF gNsOfOQ2nZpjppcFGy48vKGmVhKqKEeL8kSjznPx5Dg+f8I0riuFTC7VTQnX+FYfiyIa ZlkQ== X-Forwarded-Encrypted: i=1; AJvYcCWveb3vwDlVpd2/NKJkPcMUbPMOQ97932tPaSctXZDTc072aKc9W9TbmcKoBn7W4ulNBthY6c0zJ633ErY=@vger.kernel.org X-Gm-Message-State: AOJu0YxhJDTsrQYcQG5pMU3ijjgvxceNDBcJGL+LSQTOO9b1z8m2vhG1 nQLHmvbOWgTQsfLWJcMhhil+DxCqLc5IPnjY4GnS7XiS3Q75r1tVnhDNSy5l2YSr9MzXzeE00C0 uIKLv279JDYdze1Mx4+lioAdJtyDAEHnUNeoATYDSrC4QT7Ui6LoY4GJLw9U= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:2001:b0:661:8a3:ad19 with SMTP id 006d021491bc7-663061a1b0fmr3231093eaf.30.1769765883491; Fri, 30 Jan 2026 01:38:03 -0800 (PST) Date: Fri, 30 Jan 2026 01:38:03 -0800 In-Reply-To: <20260130091428.2426-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <697c7bfb.a70a0220.8545c.00cb.GAE@google.com> Subject: Re: [syzbot] [input?] [usb?] WARNING in asus_remove From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in asus_remove usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 usb 1-1: config 0 descriptor?? asus 0003:0B05:19B6.0001: hidraw0: USB HID v0.00 Device [HID 0b05:19b6] on usb-dummy_hcd.0-1/input0 usb 1-1: USB disconnect, device number 2 ------------[ cut here ]------------ !work->func WARNING: kernel/workqueue.c:4292 at __flush_work+0xb43/0xc50 kernel/workqueue.c:4292, CPU#1: kworker/1:3/6313 Modules linked in: CPU: 1 UID: 0 PID: 6313 Comm: kworker/1:3 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 Workqueue: usb_hub_wq hub_event RIP: 0010:__flush_work+0xb43/0xc50 kernel/workqueue.c:4292 Code: 75 54 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 cc 87 37 00 90 0f 0b 90 e9 7c ff ff ff e8 be 87 37 00 90 <0f> 0b 90 31 c0 48 bb f8 f8 f8 f8 f8 f8 f8 f8 e9 64 ff ff ff e8 a4 RSP: 0018:ffffc900038cf080 EFLAGS: 00010293 RAX: ffffffff818db1c2 RBX: 1ffff1100f64799c RCX: ffff888027ae9e40 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88807b23ccc8 RBP: ffffc900038cf238 R08: ffffffff903284b7 R09: 1ffffffff2065096 R10: dffffc0000000000 R11: fffffbfff2065097 R12: dffffc0000000000 R13: ffff88807b23cce0 R14: 1ffff92000719e18 R15: ffff88807b23ccc8 FS: 0000000000000000(0000) GS:ffff888125152000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055b8ded2fd80 CR3: 000000005c8f6000 CR4: 00000000003526f0 Call Trace: __cancel_work_sync+0xbe/0x110 kernel/workqueue.c:4451 asus_remove+0x143/0x180 drivers/hid/hid-asus.c:1348 hid_device_remove+0x228/0x370 drivers/hid/hid-core.c:-1 device_remove drivers/base/dd.c:571 [inline] __device_release_driver drivers/base/dd.c:1284 [inline] device_release_driver_internal+0x46f/0x860 drivers/base/dd.c:1307 bus_remove_device+0x34d/0x440 drivers/base/bus.c:616 device_del+0x527/0x8f0 drivers/base/core.c:3878 hid_remove_device drivers/hid/hid-core.c:3008 [inline] hid_destroy_device+0x6b/0x1b0 drivers/hid/hid-core.c:3030 usbhid_disconnect+0x9f/0xc0 drivers/hid/usbhid/hid-core.c:1477 usb_unbind_interface+0x26e/0x910 drivers/usb/core/driver.c:458 device_remove drivers/base/dd.c:573 [inline] __device_release_driver drivers/base/dd.c:1284 [inline] device_release_driver_internal+0x4d9/0x860 drivers/base/dd.c:1307 bus_remove_device+0x34d/0x440 drivers/base/bus.c:616 device_del+0x527/0x8f0 drivers/base/core.c:3878 usb_disable_device+0x3d4/0x8d0 drivers/usb/core/message.c:1418 usb_disconnect+0x32f/0x990 drivers/usb/core/hub.c:2345 hub_port_connect drivers/usb/core/hub.c:5407 [inline] hub_port_connect_change drivers/usb/core/hub.c:5707 [inline] port_event drivers/usb/core/hub.c:5871 [inline] hub_event+0x1cc9/0x4f30 drivers/usb/core/hub.c:5953 process_one_work+0x949/0x15a0 kernel/workqueue.c:3279 process_scheduled_works kernel/workqueue.c:3362 [inline] worker_thread+0xb46/0x1140 kernel/workqueue.c:3443 kthread+0x388/0x470 kernel/kthread.c:467 ret_from_fork+0x51b/0xa40 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Tested on: commit: 33a647c6 Add linux-next specific files for 20260129 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=17e49322580000 kernel config: https://syzkaller.appspot.com/x/.config?x=aef5831c38e37e48 dashboard link: https://syzkaller.appspot.com/bug?extid=13f8286fa2de04a7cd48 compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8 patch: https://syzkaller.appspot.com/x/patch.diff?x=1046f93a580000