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 X-Spam-Level: X-Spam-Status: No, score=-6.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33249C43441 for ; Sun, 25 Nov 2018 13:06:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EEE6420868 for ; Sun, 25 Nov 2018 13:06:40 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EEE6420868 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=I-love.SAKURA.ne.jp Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726260AbeKYX5l (ORCPT ); Sun, 25 Nov 2018 18:57:41 -0500 Received: from www262.sakura.ne.jp ([202.181.97.72]:58544 "EHLO www262.sakura.ne.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726069AbeKYX5l (ORCPT ); Sun, 25 Nov 2018 18:57:41 -0500 Received: from fsav304.sakura.ne.jp (fsav304.sakura.ne.jp [153.120.85.135]) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTP id wAPD6Q0f056791; Sun, 25 Nov 2018 22:06:26 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Received: from www262.sakura.ne.jp (202.181.97.72) by fsav304.sakura.ne.jp (F-Secure/fsigk_smtp/530/fsav304.sakura.ne.jp); Sun, 25 Nov 2018 22:06:26 +0900 (JST) X-Virus-Status: clean(F-Secure/fsigk_smtp/530/fsav304.sakura.ne.jp) Received: from [192.168.1.8] (softbank126126163036.bbtec.net [126.126.163.36]) (authenticated bits=0) by www262.sakura.ne.jp (8.15.2/8.15.2) with ESMTPSA id wAPD6LgF056742 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NO); Sun, 25 Nov 2018 22:06:26 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Subject: Re: WARNING in sysfs_remove_group (2) To: syzbot , gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, rafael@kernel.org, syzkaller-bugs@googlegroups.com Newsgroups: gmane.linux.kernel References: <000000000000addf6005765dd2c6@google.com> <00000000000057f850057b7b6946@google.com> From: Tetsuo Handa Message-ID: <565aa4a6-7c4a-585c-4d79-1d2b0f7a4ceb@I-love.SAKURA.ne.jp> Date: Sun, 25 Nov 2018 22:06:20 +0900 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.3.1 MIME-Version: 1.0 In-Reply-To: <00000000000057f850057b7b6946@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2018/11/25 20:21, syzbot wrote: > syzbot has found a reproducer for the following crash on: > > HEAD commit:    e195ca6cb6f2 Merge branch 'for-linus' of git://git.kernel... > git tree:       upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1659a62b400000 > kernel config:  https://syzkaller.appspot.com/x/.config?x=73e2bc0cb6463446 > dashboard link: https://syzkaller.appspot.com/bug?extid=34cbd0f790e5ab87f63b > compiler:       gcc (GCC) 8.0.1 20180413 (experimental) > syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=14dad1f5400000 > C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1211db83400000 C reproducer is essentially same with below one. #syz dup: WARNING in kernfs_get