Received: by 2002:a25:d7c1:0:0:0:0:0 with SMTP id o184csp1737861ybg; Sat, 19 Oct 2019 01:25:31 -0700 (PDT) X-Google-Smtp-Source: APXvYqzqoxgV1+7I/5vm5NJj6M2GZQjalfe2fQ/LxVWlIz31TD05F56G2b4IVGbG6VV3e16VGeH9 X-Received: by 2002:a17:906:474d:: with SMTP id j13mr12560024ejs.166.1571473531345; Sat, 19 Oct 2019 01:25:31 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1571473531; cv=none; d=google.com; s=arc-20160816; b=YB1p0KcNZmCguRCHwApq3PpXN3iBNuGHcHvD2Uk9uMeixEODg74mwl09AR9GykaiTv 7d3VBFYu/XiS0SUa5uq4QtmMHakPsg4M9SZBVUFcJrcwpwiRIvhM1Ruok7NX9bf5nIF6 CWbeD/93xIAKA8YO35KL2J0ahX0LiL4sjYE34KYc2wsgXMfR9W9XsxfXsQCZtwFH0sBo OOksQFgyJpEPTlKku71JUuOYbr4FMV0M7jeUUHFtE8GWZPcFaoApbsIThj4EMCcOyfT+ WBb083eKXk/Se1+tU/3e57WFixbM9LmcONGKOsDCkmPDILEH407XQlJ63r23MlMFLYHL HT1w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=fmP9DUin+vUoDxuh8DfLIE8z+KkWK02llKUN2yMNhsc=; b=TOndS63b9QAftstBd5zYdhxwILufwqzCajtAB250VlADoQTTldZ/P+Kra6E0FW/J0/ ymZB53bxRRKwA2dqogaaDCCbDQHNdCb96wjlNYrfQRV0qpYLoBJb+gyA+AXF+WNQUYWi wpTTbcau0gTuWj/1BSJRSAwbuYOhXtobaOxB5YIXzaOD55XxTVQYzliPubNV+TsiKfaw 71AJGn/76+M5KA5OAUM58M4dy1swrNpp1Uu/o8UEZDfCKL7kIVQi5jiZ4JPtfvVxgV3a IQfY0+MHUoRbrEm+c6UHTraEOGB6u8TSoVOsWsw+mhQOUrIVfPxBCrBLrCIt4W8rctFn MTbQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id o32si5454949edc.306.2019.10.19.01.25.08; Sat, 19 Oct 2019 01:25:31 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2634046AbfJRNBh (ORCPT + 99 others); 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: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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!