From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 642F48488; Wed, 18 Dec 2024 07:31:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734507063; cv=none; b=LHij9ZjmpvHQRv/eRL32LnO2mdfYVZsN/DKCHSFebydmLcbtKXpu8JFVKZNn2CtEUFmwL+PndEPhNlDeb5o+MshSDLdYNf2xZtJgsGsYpZPLxGGQE7uPa4o/XvNNnhcyi9FisJVA0I84NZMIlMnmmbU0/V7w7O7JfFRy90srJO0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734507063; c=relaxed/simple; bh=UpFSLQPO96lykop+vvLXd2Bkubb8lGnsKqB3CKAFECI=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=oim96Yj1sJHmDP4+fJmUNSaWZm5rh92Tt67Jr6Ar6+Tefd+WS9lTaqvn5bqnwIy3hlGce02iJvA5g3wMSb8whYYLk89fz9ChBE0gWKP/F+ECqse5Hne8nG5BWobnjKgbJUA0SICrZiZyFdkF81mhVRkt3QK7oX4eiJOTZifPRD0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=V2H8OQCM; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="V2H8OQCM" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5AEB5C4CECE; Wed, 18 Dec 2024 07:31:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1734507062; bh=UpFSLQPO96lykop+vvLXd2Bkubb8lGnsKqB3CKAFECI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=V2H8OQCMjc18mYRWRPLyw4KDgpnzAhA0Wl5opru2xNOPaXLo9H8cVw2zITxylgmgS 5AGHqU1TCwiNM/CCrBOlXr6UQKrMCCrK4GZhcnfyJB1Zg4ccQI7PZMNMwkW/HYwR1c Gh1WVP9aYYMmiIUn1QGWikDe9g2A6TRoQeMlHZ9I= Date: Wed, 18 Dec 2024 08:30:22 +0100 From: Greg KH To: =?utf-8?B?5rGf5LiW5piK?= Cc: security@kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller@googlegroups.com Subject: Re: [bug report] usb: WARNING in usb_free_urb Message-ID: <2024121824-twine-ageless-5c7c@gregkh> References: Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Wed, Dec 18, 2024 at 03:06:01PM +0800, 江世昊 wrote: > Hello developers, > > We hit this issue when fuzzing the usb module with Syzkaller. Great! But why are you using an old kernel version: > HEAD commit: 819837584309 6.12.0-rc5 If you come up with a fix for this, please submit it as you have a reproducer. Also, no need to cc: the security alias if you also send it to public lists like this. thanks, greg k-h