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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=unavailable 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 7FB7EC432C3 for ; Mon, 2 Dec 2019 19:55:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5E95020833 for ; Mon, 2 Dec 2019 19:55:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728230AbfLBTzM (ORCPT ); Mon, 2 Dec 2019 14:55:12 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:51173 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728229AbfLBTzL (ORCPT ); Mon, 2 Dec 2019 14:55:11 -0500 Received: by mail-io1-f69.google.com with SMTP id t193so426833iof.17 for ; Mon, 02 Dec 2019 11:55:10 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=veCUUZlFB0NiOs09rx07Rdq8OaEllTTQeYc68mzDoxA=; b=SHI7SpFm/K+7RMeanacSFYB31wQstbB7hUXmIyzgNM+0AXcgXfX6Y/vGEsaQyHKoz6 C4oZzT3lb3OOgaAKgt9+66+4FkbdMtHJJdsHWixYSWfu7za0XL768m8Dte3ztmgd27RN CJs3WDF3/6WJ0bBHlplZqNlLjwb5HW0guuCqi5iDsYMDZkjxurYDakkxPpTHG+6De06P zzOpaTiw0j4u+aJH8mKa/dr+huHp1pUqLFfw5tpZXcu5jnxVldlB4cmsu/HYj8uzWWsx I33st7WVELck4916TuUGXikGOrsxZU5cwW5bc8vUAvDIh7shWNo4isYKAc69bFbFRsZw CCuw== X-Gm-Message-State: APjAAAWHy2S1BrheNKdCQ+9dsxvJoVi6L9Vd5BicjoKJtk3B0YRLtmT1 OOQFJJcBtPSMT36K9wjAyaj3MtxYgnYB8emTnwhiwx3pJNXF X-Google-Smtp-Source: APXvYqxkToWG8SBpIUiPD3SZB7zc9UpBocGZYL6i1TL7Y/1XHMYAC8iw0X8f2xGijHFowycYEd4MZ/bNQ4pVC2OZTwPGpkWe0nrd MIME-Version: 1.0 X-Received: by 2002:a05:6638:38f:: with SMTP id y15mr1488730jap.17.1575316509840; Mon, 02 Dec 2019 11:55:09 -0800 (PST) Date: Mon, 02 Dec 2019 11:55:09 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fa5c3d0598bdf44e@google.com> Subject: WARNING in corrupted (2) From: syzbot To: andriin@fb.com, ast@kernel.org, axboe@kernel.dk, bpf@vger.kernel.org, daniel@iogearbox.net, kafai@fb.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, yhs@fb.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: a6ed68d6 Merge tag 'drm-next-2019-11-27' of git://anongit... git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=173ab832e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=6349516b24252b37 dashboard link: https://syzkaller.appspot.com/bug?extid=c792a994cd965b2ac623 compiler: gcc (GCC) 9.0.0 20181231 (experimental) userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=106bdb86e00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+c792a994cd965b2ac623@syzkaller.appspotmail.com ------------[ cut here ]------------ generic_make_request: Trying to write to read-only block-device loop0 (partno 0) WARNING: CPU: 1 PID: 8854 at block/blk-core.c:800 bio_check_ro block/blk-core.c:800 [inline] WARNING: CPU: 1 PID: 8854 at block/blk-core.c:800 generic_make_request_checks+0x1c78/0x2190 block/blk-core.c:901 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8854 Comm: blkid Not tainted 5.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches