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 9683BE810B1 for ; Wed, 27 Sep 2023 09:15:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230308AbjI0JPc (ORCPT ); Wed, 27 Sep 2023 05:15:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34824 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230320AbjI0JPa (ORCPT ); Wed, 27 Sep 2023 05:15:30 -0400 Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8543DE for ; Wed, 27 Sep 2023 02:15:28 -0700 (PDT) Received: from kwepemm000014.china.huawei.com (unknown [172.30.72.55]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4RwW7r3n8wzNnrx; Wed, 27 Sep 2023 17:11:36 +0800 (CST) Received: from [10.67.110.164] (10.67.110.164) by kwepemm000014.china.huawei.com (7.193.23.6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.31; Wed, 27 Sep 2023 17:15:25 +0800 Subject: Re: BUG: sleeping function called from invalid context in console_lock To: Greg Kroah-Hartman CC: Jiri Slaby , , , linux-serial References: <42c2c0c4-9ee2-6426-8c3c-2585e0345fcb@huawei.com> <2023091838-shrubs-paragraph-e579@gregkh> From: "yiyang (D)" Message-ID: <943e34ff-5412-ee88-2b18-1e5b1e198b71@huawei.com> Date: Wed, 27 Sep 2023 17:15:25 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: <2023091838-shrubs-paragraph-e579@gregkh> Content-Type: text/plain; charset="gbk"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.67.110.164] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemm000014.china.huawei.com (7.193.23.6) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-serial@vger.kernel.org On 2023/9/18 23:19, Greg Kroah-Hartman wrote: > On Mon, Sep 18, 2023 at 09:35:23PM +0800, yiyang (D) wrote: >> In recent years, this problem has been reported in syzkaller all the time. >> >> Link: https://syzkaller.appspot.com/bug?extid=dbac96d8e73b61aa559c >> >> Historically, the developers have tried to fix this problem by use mutex >> instead spinlock, but it didn't solve the problem.. >> >> Link: https://lore.kernel.org/all/20220826193545.20363-1-pchelkin@ispras.ru/ >> >> Other developers have recently reported this problem, but no one has >> continued to try to fix it. >> >> Link: >> https://lore.kernel.org/all/20230420082153.6711-1-daniel.starke@siemens.com/ >> >> Anyway, do we have any ideas for solving this problem? > > Nope! Why do you think this is something that even needs to be > addressed? > . > This problem seems to be a CVE problem. https://nvd.nist.gov/vuln/detail/CVE-2023-31082