From nobody Mon Feb 9 05:53:24 2026 Received: from mail-ot1-f70.google.com (mail-ot1-f70.google.com [209.85.210.70]) (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 227A222424C for ; Sat, 3 Jan 2026 00:26:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.70 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767399979; cv=none; b=b57mguhV/q5f9gFa9EWZ9fE4odq2ImAyORd5OvUEvkYnD7hoQul+Nqxfzi6UyKiFpxHDcbKneRxpw+/zZ1A6SvQXgYX+qLMu7eHAbHo1NhRdr+LchfAxpSP8dnrb5LttTjXI69oDbUMwC1VBRl+l5bYdmuYyfJoy6QHyPxpE9PA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767399979; c=relaxed/simple; bh=5z1eI4pgXT86c+KsU0z74IUzYIp4IiGKJFrbgjb2ytk=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=XCAaiukwH4DW6ULTeEVQhnA40ZVfcAWC38SQBK1DBAoG1EeKfNxvxunIr9CjhCnqqpbAeNBZgBlx0DEWqQKYhCk+b8bg8BEvmP3DWRioYwyrI1Ahmw/6awIwPludQ/0sF7pTipXYM8koP5kTms4hEwQkuwO0AHssHOPCwRSXQOQ= 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=209.85.210.70 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-ot1-f70.google.com with SMTP id 46e09a7af769-7c70546acd9so28398605a34.3 for ; Fri, 02 Jan 2026 16:26:17 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1767399977; x=1768004777; 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=OjnNPpwB2tSDC9uew6cjTPYwuRBejg7ufZ/U2vGo1kY=; b=d0lFciT+1pmTsGvEnxF9mT8xYkb4LZEyWNVMQB042E+ylP31b2/5rkm78oLAq7XQII M1e5xPvaPePP/sedVT1v9IS4hpGIuvTFRBvzOsiJCtEDPiMH1mA9ZQYmm1GDEl5L87HK 3l27JAZkG0B94gYvxwiThD6X13RfF63PGPn3qRZS30J75TaZ0GwlQ9l6rNSF4o0onTSG /c+TD2r6eLpyYHj6na7fhFgJ7qRG+Skt4o2MxcBOvH6CX/hC36ewNSNH8ET3XUWr5X/B 6hn3ao4e0OjK5CZWIbj1FfewmPH4iXLY+jZ7wODG7lsXtdtxCRr//XO3TFVNGyQlU5VF JQlg== X-Gm-Message-State: AOJu0Yw8R3Xqcng4Uw2yDSrdQe+88LRyGJxO9+IFQdGcm4zTylgiMW61 1cnSibKMlVvSxuoJk5MAcoEjuJH3zyXo9A1dwHf9PrS9UTFin0WCxcrxQ5Rpydr+qiKnuTR0eBK +5K8hyRW+mWFaxnedIr+XGoY4la420CS0+q0L9oa983PdwkciLLAp6aVfTY8= X-Google-Smtp-Source: AGHT+IGT7OhHr0i+bQkuPBWte4cD4ECwmSdp+Jqol5fjsIbIGvbxqamyIhgn+dMAgBZkD77WpvrSEKugnhOkn+05rEq/eiPbz86e 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:f029:b0:654:faee:1065 with SMTP id 006d021491bc7-65d0e9f30a2mr25814499eaf.5.1767399977075; Fri, 02 Jan 2026 16:26:17 -0800 (PST) Date: Fri, 02 Jan 2026 16:26:17 -0800 In-Reply-To: <692ccc4c.a70a0220.d98e3.0175.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69586229.050a0220.a1b6.036a.GAE@google.com> Subject: Forwarded: Re: [syzbot] [input?] [usb?] WARNING in cm109_urb_irq_callback From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [input?] [usb?] WARNING in cm109_urb_irq_callback Author: yiconghui@gmail.com #syz test --- a/drivers/input/misc/cm109.c +++ b/drivers/input/misc/cm109.c @@ -375,13 +375,17 @@ static void cm109_submit_ctl(struct cm109_dev *dev) dev->ctl_data->byte[HID_OR2] =3D dev->keybit; =20 dev->buzzer_pending =3D 0; - dev->ctl_urb_pending =3D 1; =20 - error =3D usb_submit_urb(dev->urb_ctl, GFP_ATOMIC); - if (error) - dev_err(&dev->intf->dev, - "%s: usb_submit_urb (urb_ctl) failed %d\n", - __func__, error); + if (!dev->ctl_urb_pending) { + dev->ctl_urb_pending =3D 1; + + + error =3D usb_submit_urb(dev->urb_ctl, GFP_ATOMIC); + if (error) + dev_err(&dev->intf->dev, + "%s: usb_submit_urb (urb_ctl) failed %d\n", + __func__, error); + } } =20 /* --