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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 83455ECDFB0 for ; Thu, 12 Jul 2018 21:15:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 434E0213A2 for ; Thu, 12 Jul 2018 21:15:25 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 434E0213A2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=iogearbox.net 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 S1732923AbeGLV0o (ORCPT ); Thu, 12 Jul 2018 17:26:44 -0400 Received: from www62.your-server.de ([213.133.104.62]:48209 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732816AbeGLV0o (ORCPT ); Thu, 12 Jul 2018 17:26:44 -0400 Received: from [78.46.172.2] (helo=sslproxy05.your-server.de) by www62.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.85_2) (envelope-from ) id 1fdivp-00021p-6N; Thu, 12 Jul 2018 23:15:21 +0200 Received: from [62.203.87.61] (helo=linux.home) by sslproxy05.your-server.de with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1fdivp-000KGl-0a; Thu, 12 Jul 2018 23:15:21 +0200 Subject: Re: WARNING in bpf_check To: Dmitry Vyukov , syzbot Cc: Alexei Starovoitov , LKML , netdev , syzkaller-bugs References: <00000000000025f8880570c87c51@google.com> From: Daniel Borkmann Message-ID: Date: Thu, 12 Jul 2018 23:15:20 +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 0.100.0/24746/Thu Jul 12 14:54:54 2018) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 07/12/2018 09:51 AM, Dmitry Vyukov wrote: > On Thu, Jul 12, 2018 at 9:41 AM, syzbot > wrote: >> Hello, >> >> syzbot found the following crash on: >> >> HEAD commit: 671dffa7de7b Merge branch 'bpf-bpftool-improved-prog-load' >> git tree: bpf-next >> console output: https://syzkaller.appspot.com/x/log.txt?x=1550b562400000 >> kernel config: https://syzkaller.appspot.com/x/.config?x=a501a01deaf0fe9 >> dashboard link: https://syzkaller.appspot.com/bug?extid=7d427828b2ea6e592804 >> compiler: gcc (GCC) 8.0.1 20180413 (experimental) #syz fix: bpf: don't leave partial mangled prog in jit_subprogs error path