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=-0.7 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED 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 7ED11C4360F for ; Sat, 23 Mar 2019 07:50:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5564721874 for ; Sat, 23 Mar 2019 07:50:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726957AbfCWHuC (ORCPT ); Sat, 23 Mar 2019 03:50:02 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:46637 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726106AbfCWHuC (ORCPT ); Sat, 23 Mar 2019 03:50:02 -0400 Received: by mail-io1-f71.google.com with SMTP id k5so3668635ioh.13 for ; Sat, 23 Mar 2019 00:50:01 -0700 (PDT) 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:in-reply-to:message-id:subject :from:to; bh=uyeFy9nr6uooYOVc0CHdUGqt9tT2hLYONRn7P4dDucg=; b=bDPLye0fJbycFu9BgEkSH+/o7H3DZSf8EJqTlX9GL7c6ISfv1PW8VeFGDpITCBMf5U f6zjHgTAwIIfyd48SsMY4WTIa0CwWBQdkmUretMVUE4ZVjVwij7HOrqGoiOtYTd+jlWH sgn8U+itxPRsfHhcIKiy3j/fsTszQjC9OoxOWpa1yfPM3mgALollPLgKtaa8AjImB/Tc tgRUOufTUy51pnT+mX0YfboUl3IE5YhyOmFcfaneEXL/oqj2KOyjtiigyUpNXh5RMcEJ kzUZXvGmoP5lQ/a/ozTxrjW1yJ55DXbgplMA1g7q7qo4KS01BNpAel4NWXj3hVOjJ8t4 9rPg== X-Gm-Message-State: APjAAAXB9WHy2qExIqK0xsrB0YnETtXfll4/XszKQZ3b3k2wVQifYfYs skidAqTF8MWmijaE4ouHj51o0++ziBfd2xg0dZiKSt/JBsT4 X-Google-Smtp-Source: APXvYqzZrZbo5PeFWeeCxw2kozFC7X+ewDnQXeBq96HUj4cWCMhdWnAAukpERSwWQxFqnqmC8wpB59chjLfgtwO7dEVA67L31Cso MIME-Version: 1.0 X-Received: by 2002:a24:6b8e:: with SMTP id v136mr4335629itc.146.1553327401001; Sat, 23 Mar 2019 00:50:01 -0700 (PDT) Date: Sat, 23 Mar 2019 00:50:00 -0700 In-Reply-To: <0000000000006971fa05769d22f6@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f4efae0584be37ab@google.com> Subject: Re: WARNING in request_end From: syzbot To: dvyukov@google.com, ebiederm@xmission.com, ktkhai@virtuozzo.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, miklos@szeredi.hu, mszeredi@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this bug to: commit 4ad769f3c346ec3d458e255548dec26ca5284cf6 Author: Eric W. Biederman Date: Tue May 29 14:04:46 2018 +0000 fuse: Allow fully unprivileged mounts bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16b4518b200000 start commit: 0238df64 Linux 4.19-rc7 git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=15b4518b200000 console output: https://syzkaller.appspot.com/x/log.txt?x=11b4518b200000 kernel config: https://syzkaller.appspot.com/x/.config?x=88e9a8a39dc0be2d dashboard link: https://syzkaller.appspot.com/bug?extid=ef054c4d3f64cd7f7cec userspace arch: i386 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=119bf2e6400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1760f806400000 Reported-by: syzbot+ef054c4d3f64cd7f7cec@syzkaller.appspotmail.com Fixes: 4ad769f3c346 ("fuse: Allow fully unprivileged mounts") For information about bisection process see: https://goo.gl/tpsmEJ#bisection