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 47187C352A1 for ; Wed, 7 Dec 2022 07:54:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229734AbiLGHyW (ORCPT ); Wed, 7 Dec 2022 02:54:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44276 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229619AbiLGHyT (ORCPT ); Wed, 7 Dec 2022 02:54:19 -0500 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D79B930577; Tue, 6 Dec 2022 23:54:18 -0800 (PST) Received: from canpemm500010.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4NRqFW1LCXzpW8C; Wed, 7 Dec 2022 15:50:07 +0800 (CST) Received: from [10.174.178.185] (10.174.178.185) by canpemm500010.china.huawei.com (7.192.105.118) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.31; Wed, 7 Dec 2022 15:53:42 +0800 Subject: Re: [PATCH v2] ext4: fix kernel BUG in 'ext4_write_inline_data_end()' To: Jun Nie , Ye Bin References: <20221206144134.1919987-1-yebin@huaweicloud.com> CC: , , , , , From: "yebin (H)" Message-ID: <63904686.3010903@huawei.com> Date: Wed, 7 Dec 2022 15:53:42 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.178.185] X-ClientProxiedBy: dggems702-chm.china.huawei.com (10.3.19.179) To canpemm500010.china.huawei.com (7.192.105.118) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2022/12/7 14:44, Jun Nie wrote: > Hi Bin, > > Thanks for the patch! The bug is reproduced with this patch. I can > help trigger another > test when you have new patch. > https://syzkaller.appspot.com/text?tag=CrashLog&x=16760797880000 The cause of this issue is different from that of the previous issue. I analyze that the issue "https://syzkaller.appspot.com/text?tag=CrashLog&x=16760797880000 " is caused by the concurrency of inline data conversion and buffer write. To be honest, I haven't thought of any good solution. > > Regards, > Jun > .