From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.codeaurora.org by pdx-caf-mail.web.codeaurora.org (Dovecot) with LMTP id hPYkDPGIGlupDgAAmS7hNA ; Fri, 08 Jun 2018 13:47:40 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 08734607E4; Fri, 8 Jun 2018 13:47:40 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by smtp.codeaurora.org (Postfix) with ESMTP id 5DB4B602FC; Fri, 8 Jun 2018 13:47:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 5DB4B602FC Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=iogearbox.net Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752692AbeFHNrh (ORCPT + 25 others); Fri, 8 Jun 2018 09:47:37 -0400 Received: from www62.your-server.de ([213.133.104.62]:60817 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751524AbeFHNrf (ORCPT ); Fri, 8 Jun 2018 09:47:35 -0400 Received: from [178.197.248.12] (helo=linux.home) by www62.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-SHA:256) (Exim 4.85_2) (envelope-from ) id 1fRHjp-0003Um-AO; Fri, 08 Jun 2018 15:47:33 +0200 Subject: Re: WARNING in do_dentry_open To: Dmitry Vyukov , syzbot , Alexei Starovoitov , netdev Cc: linux-fsdevel , LKML , syzkaller-bugs , Al Viro References: <000000000000bd54dd056e212189@google.com> From: Daniel Borkmann Message-ID: <92b8621b-cf57-5fe9-23d1-e06b83ee0c78@iogearbox.net> Date: Fri, 8 Jun 2018 15:47:32 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.3.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.99.3/24643/Fri Jun 8 06:37:57 2018) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/08/2018 03:34 PM, Dmitry Vyukov wrote: > On Fri, Jun 8, 2018 at 3:11 PM, syzbot > wrote: >> Hello, >> >> syzbot found the following crash on: >> >> HEAD commit: 68abbe729567 Merge branch 'akpm' (patches from Andrew) >> git tree: upstream >> console output: https://syzkaller.appspot.com/x/log.txt?x=130146af800000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=e5a4673d4582131c >> dashboard link: https://syzkaller.appspot.com/bug?extid=2e7fcab0f56fdbb330b8 >> compiler: gcc (GCC) 8.0.1 20180413 (experimental) >> syzkaller repro:https://syzkaller.appspot.com/x/repro.syz?x=1591756f800000 >> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=152236af800000 > > Looking at the reproducer this seems to be related to bpf. > +bpf maintainers Indeed, thanks! Already working on a fix right now.