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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no 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 91F95CA9EA4 for ; Fri, 18 Oct 2019 13:01:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 72BAD222D4 for ; Fri, 18 Oct 2019 13:01:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2633986AbfJRNBh (ORCPT ); Fri, 18 Oct 2019 09:01:37 -0400 Received: from www62.your-server.de ([213.133.104.62]:45398 "EHLO www62.your-server.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2410223AbfJRNBf (ORCPT ); Fri, 18 Oct 2019 09:01:35 -0400 Received: from 55.249.197.178.dynamic.dsl-lte-bonding.lssmb00p-msn.res.cust.swisscom.ch ([178.197.249.55] helo=localhost) by www62.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.89_1) (envelope-from ) id 1iLRsm-0000UA-Qr; Fri, 18 Oct 2019 15:01:28 +0200 Date: Fri, 18 Oct 2019 15:01:28 +0200 From: Daniel Borkmann To: syzbot Cc: ast@kernel.org, bpf@vger.kernel.org, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, yhs@fb.com Subject: Re: BUG: unable to handle kernel paging request in is_bpf_text_address Message-ID: <20191018130128.GC26267@pc-63.home> References: <000000000000410cbb059528d6f7@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000410cbb059528d6f7@google.com> User-Agent: Mutt/1.12.1 (2019-06-15) X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.101.4/25606/Fri Oct 18 10:58:40 2019) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Thu, Oct 17, 2019 at 10:45:09PM -0700, syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit: 283ea345 coccinelle: api/devm_platform_ioremap_resource: r.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=122f199b600000 > kernel config: https://syzkaller.appspot.com/x/.config?x=f0a8b0a0736a2ac1 > dashboard link: https://syzkaller.appspot.com/bug?extid=710043c5d1d5b5013bc7 > compiler: clang version 9.0.0 (/home/glider/llvm/clang > 80fee25776c2fb61e74c1ecb1a523375c2500b69) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=142676bb600000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11a2cebb600000 I'll take a look, thanks!