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=-1.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,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 CC0B8C072B5 for ; Fri, 24 May 2019 08:08:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9605E2184B for ; Fri, 24 May 2019 08:08:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389440AbfEXIIK (ORCPT ); Fri, 24 May 2019 04:08:10 -0400 Received: from www62.your-server.de ([213.133.104.62]:58794 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388959AbfEXIIK (ORCPT ); Fri, 24 May 2019 04:08:10 -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 4.89_1) (envelope-from ) id 1hU5FI-0007Rn-Eo; Fri, 24 May 2019 10:08:08 +0200 Received: from [178.197.249.12] (helo=linux.home) by sslproxy05.your-server.de with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89) (envelope-from ) id 1hU5FI-000VH1-8U; Fri, 24 May 2019 10:08:08 +0200 Subject: Re: bpf build error To: syzbot , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <0000000000008666df05899b7663@google.com> From: Daniel Borkmann Message-ID: <649cac1e-c77c-daf8-6ae7-b02c8571b988@iogearbox.net> Date: Fri, 24 May 2019 10:08:07 +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: <0000000000008666df05899b7663@google.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.100.3/25458/Thu May 23 09:58:32 2019) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 05/24/2019 07:28 AM, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit:    e6f6cd0d bpf: sockmap, fix use after free from sleep in ps.. > git tree:       bpf > console output: https://syzkaller.appspot.com/x/log.txt?x=16f116e4a00000 > kernel config:  https://syzkaller.appspot.com/x/.config?x=fc045131472947d7 > dashboard link: https://syzkaller.appspot.com/bug?extid=cbe357153903f8d9409a > compiler:       gcc (GCC) 9.0.0 20181231 (experimental) > > Unfortunately, I don't have any reproducer for this crash yet. > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+cbe357153903f8d9409a@syzkaller.appspotmail.com > > net/core/skbuff.c:2340:6: error: ‘struct msghdr’ has no member named ‘flags’ Disregard, tossed from bpf tree.