Received: by 2002:ac0:a5b6:0:0:0:0:0 with SMTP id m51-v6csp3396369imm;
        Tue, 29 May 2018 06:36:58 -0700 (PDT)
X-Google-Smtp-Source: ADUXVKIyZEkeLCheyRMpDpZN0qbtRaiMcQSBJUI7vyLIqiq+mZoPMOqWjxbb2jJZtKL6Llageolg
X-Received: by 2002:a17:902:7105:: with SMTP id a5-v6mr9512472pll.171.1527601018515;
        Tue, 29 May 2018 06:36:58 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1527601018; cv=none;
        d=google.com; s=arc-20160816;
        b=zf/STrzlNi/YqvIyWptHRDJTz9sBI9yg2+6H9M0ZPpgDs9ajZztwjyDHyZT75gvwZf
         UPZqPTZovVG222httUHSFTARm/anJBh6DTcPBfDfg8knRfzmijSph96sLf7gEciTrWjG
         Q5Ojwn4hdDzOsoIu2i5HjVdNJfcwxOhy8ik4i8J16s8OfpFP9HtvkrfgGZjdiTFIa9Pf
         o1OQL+WS3Bl7z/CoKr6D2zJQ2rPO8El91YQqHYnvCgHnmfmI1XvE2v78ohIOuLNlOiCS
         uZCDJLcY2pOH1CiBkyFUhb5AazN2kssDAJtmhC8EOptpR90X/iEut+Mf4Q8VjlFfuWPq
         ZBug==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:sender:cc:to:subject:message-id:date:from
         :mime-version:dkim-signature:arc-authentication-results;
        bh=EBOmvF9Od76ygjgiywqrH4u61Ag2vIv63FLJsxPZKew=;
        b=jOeJ7m8vVMlMnOXdlBl6dDgb1jlEFniVsOOMXPFi5Y3JP6c7QV6OcOQ2ZkiyLT95JG
         pMfYBYP2WnTsaqgfWXd98BOTiX+3UGdOlkX3qR2wpQdj74xd5Q1oYV1hBE63Etssytw9
         tt+cHlBlrb5hP2y77pFqn0bEb7MDGUQo7PB6PZp3dKoLRe2wXf2XRysfkpWXD8XThNAK
         91lFf5AztJ6mus2XcyF3+HyeEob2V6O42nXNn2mHCsDUZcwWQ+WsVtzQWmEMmgEezdtk
         D9O8+/Ii+JJOybK4LtDFecIuoHa38Np/ZWTn2X5un4AfDYtliRUpr/HL55neZmVdDY65
         56NQ==
ARC-Authentication-Results: i=1; mx.google.com;
       dkim=pass header.i=@gmail.com header.s=20161025 header.b=S6Ml1O42;
       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;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67])
        by mx.google.com with ESMTP id b37-v6si32573014plb.377.2018.05.29.06.36.44;
        Tue, 29 May 2018 06:36:58 -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;
       dkim=pass header.i=@gmail.com header.s=20161025 header.b=S6Ml1O42;
       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;
       dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S934493AbeE2Ne3 (ORCPT <rfc822;shmalave.kernel@gmail.com>
        + 99 others); Tue, 29 May 2018 09:34:29 -0400
Received: from mail-wm0-f44.google.com ([74.125.82.44]:51473 "EHLO
        mail-wm0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S934136AbeE2Ne1 (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Tue, 29 May 2018 09:34:27 -0400
Received: by mail-wm0-f44.google.com with SMTP id r15-v6so13054601wmc.1;
        Tue, 29 May 2018 06:34:26 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20161025;
        h=mime-version:from:date:message-id:subject:to:cc;
        bh=EBOmvF9Od76ygjgiywqrH4u61Ag2vIv63FLJsxPZKew=;
        b=S6Ml1O427Esd1L0s9fWWd7Lb/WjoFkTQHhQoY3JVwjhnamuTOE/Qv/uqGysBY+ONAT
         zWf7O01HgFDhPJbswpdvUyo3NdxPzCVTENMF8I8EpbpAw7WMQntnAjRk+b8JSefY4Lfe
         caanbXjHdQE2nB8qKRoSe2bnhmSKWPjCGoeseghcclL/6iq0G0L7Zrw7/ILZETcrfL5N
         LpcJ9LpAr1r9jWeMWVbaCbXzUG8y+OZCMmPAbdl2QAcBeEZ9waPN5l1cg+zekIwrGzb0
         rtc+weBV87zd258eIkQdos4WH5Cjgb+rcMUPnEsnU6ipaGEPFivvIh0lfcUuHQgoPpRT
         5hMA==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=1e100.net; s=20161025;
        h=x-gm-message-state:mime-version:from:date:message-id:subject:to:cc;
        bh=EBOmvF9Od76ygjgiywqrH4u61Ag2vIv63FLJsxPZKew=;
        b=Nw4U2dhFevch5TpAxmpOiNmzautNUEzVsEY6ynTPXrY8q7OolNnzswJTA7+8R/sY8k
         f07jpXI4lXbRqSfa+bpWUkV1O/gKT2yMa8b1UCbhRU4N3avxo1tPi+jTEdHOqkPK/o3y
         IGJ7LlalKxKz4GWa1yrds4JjYaNPvzj8CFfYwyQU87t44rJfYKijzyLr3Tqt26XkWyZJ
         yJaNp+AH491sqPvB6LEs7nALAC0ySmIanqM4OnSG71fecAWQKJfv5MUGgxcdOJ/PbFKT
         a+/s3PGQCj5lvSDNqJoRQ8HAPNFcAud9UrPSblKsS2l0rz1LFrS/WaHgnMndtsJqRN4z
         x4eA==
X-Gm-Message-State: ALKqPwcWGgOGi0dxoIm5V78blcqw3jYc2b4C9YmYiOgyoomQ9fw96AWl
        pZ2fkj+B6cEVvd7h270BxS5cYl6LcX9KtI7Hx+ZW1w==
X-Received: by 2002:a2e:18b:: with SMTP id f11-v6mr3052752lji.83.1527600866094;
 Tue, 29 May 2018 06:34:26 -0700 (PDT)
MIME-Version: 1.0
Received: by 2002:a2e:94d6:0:0:0:0:0 with HTTP; Tue, 29 May 2018 06:34:25
 -0700 (PDT)
From:   shankarapailoor <shankarapailoor@gmail.com>
Date:   Tue, 29 May 2018 06:34:25 -0700
Message-ID: <CAB+yDaZ1SCDWs7budkTDh0OL0Pvmpf0Eh94koT8+B=8p5c3Dyg@mail.gmail.com>
Subject: 2 BUG_ON crashes
To:     clm@fb.com, jbacik@fb.com
Cc:     linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

Hi,

I have been fuzzing linux 4.17-rc4 with Syzkaller and it triggered the
following BUG_ONs.

1. kernel BUG at fs/btrfs/file.c:997
(https://elixir.bootlin.com/linux/v4.17-rc4/source/fs/btrfs/file.c#L997)

Stack Trace: https://pastebin.com/QZeDnRvm

2. kernel BUG at fs/btrfs/extent_io.c:4049
(https://elixir.bootlin.com/linux/v4.17-rc4/source/fs/btrfs/extent_io.c#L4049)

Stack Trace: https://pastebin.com/qZN5qF3e

Both bugs appear to be triggered by fault injections but can the
BUG_ON's be changed to Warnings?

Regards,
Shankara Pailoor