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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6A353C433FE for ; Mon, 17 Oct 2022 09:01:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230480AbiJQJBq (ORCPT ); Mon, 17 Oct 2022 05:01:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35156 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230457AbiJQJBk (ORCPT ); Mon, 17 Oct 2022 05:01:40 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1C5C13608A for ; Mon, 17 Oct 2022 02:01:16 -0700 (PDT) Received: from dggpemm500022.china.huawei.com (unknown [172.30.72.54]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4MrW7X3kbyz1P78l; Mon, 17 Oct 2022 16:56:24 +0800 (CST) Received: from dggpemm500007.china.huawei.com (7.185.36.183) by dggpemm500022.china.huawei.com (7.185.36.162) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Mon, 17 Oct 2022 17:01:05 +0800 Received: from [10.174.178.174] (10.174.178.174) by dggpemm500007.china.huawei.com (7.185.36.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Mon, 17 Oct 2022 17:01:05 +0800 Subject: Re: [PATCH] kobject: fix possible memory leak in kset_create_and_add() To: Greg KH CC: , References: <20221017023327.1793893-1-yangyingliang@huawei.com> <9c2e91e1-dd07-8a4b-999c-9a2d26ee5f07@huawei.com> From: Yang Yingliang Message-ID: <3a661911-fb26-3d36-a78b-0778c0fceec2@huawei.com> Date: Mon, 17 Oct 2022 17:01:04 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Content-Language: en-US X-Originating-IP: [10.174.178.174] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpemm500007.china.huawei.com (7.185.36.183) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2022/10/17 16:49, Greg KH wrote: > On Mon, Oct 17, 2022 at 04:13:03PM +0800, Yang Yingliang wrote: >> Hi, >> >> On 2022/10/17 12:51, Greg KH wrote: >>> On Mon, Oct 17, 2022 at 10:33:27AM +0800, Yang Yingliang wrote: >>>> If kset_register() fails in kset_create_and_add(), the name allocated >>>> in kset_create() will be leaked. >>> How is kset_create_and_add() failing? Is this in a real kernel, or >>> created with a fake fault injection? >> Inject fault while probing module qemu_fw_cfg, kset_create_and_add() may >> fail. > Ah good, it's never being hit in a real situation. The next time you > submit patches that are found like this, please include this type of > information. OK. Do I need to send a v2 with commit message update. Thanks, Yang > > thanks, > > greg k-h > .