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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 B177FC3A5A8 for ; Sun, 1 Sep 2019 14:06:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9226F233A2 for ; Sun, 1 Sep 2019 14:06:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728826AbfIAOGB (ORCPT ); Sun, 1 Sep 2019 10:06:01 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:47763 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726260AbfIAOGB (ORCPT ); Sun, 1 Sep 2019 10:06:01 -0400 Received: by mail-io1-f69.google.com with SMTP id b22so15547441iod.14 for ; Sun, 01 Sep 2019 07:06:01 -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=9+b64TJ7Wgc7oSj44lFhNcMZ8K+apd8ZDigaEmOoDQs=; b=bmQ2PHvPehz7ily3EAUc3nRfLqV9jJiVT8TQI2l/r+6WExzwP34w1NPPMU0P4/zU1e co7tIwuBAhgJftnuQoDx2dG1CQ0tNPlj1nvDbmiOiY2RPWzhfCyHPU2GQcbmg5eB0WAt Gl9iSRpTsyvGQFrx3R5IxyN+oFxDsDA8SvOmQE6Pa/X/ycVXzhi3Bpvgt8Y6zDLHNDNl MPFKH3e/fLLSaf9IFdHQ8jgNu55xheoB1L3sYASRJrjRZleqm85mI08RRjq+LLq07omh eLeh5FGkmLIJv6F4a+XRlpjAr37LSQOB19jFxNRRwZK7mD1YCrEOejEapmMPaGmNie42 3Z8g== X-Gm-Message-State: APjAAAX0K442NsGapLJgQUbX9Q+jHhaOkLv3OTo2/Oi8jifJ+vMnKS4O tDafB4HXWjqap+XEh8YN39xAHkvB/TtrTOgZe3d7H6/dpDzq X-Google-Smtp-Source: APXvYqygGQ3rpl4o7+tjLJB/SJ7oeQRVOkbVbQnlAaICG51/j53rAYoLcGLBC5rWvW23w9FodKiZbrc7PyHh4kLjEr+72FGrPdt/ MIME-Version: 1.0 X-Received: by 2002:a5d:81ce:: with SMTP id t14mr8009244iol.97.1567346760477; Sun, 01 Sep 2019 07:06:00 -0700 (PDT) Date: Sun, 01 Sep 2019 07:06:00 -0700 In-Reply-To: <0000000000003675ae05915a9fd3@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000e5f0e805917e5a60@google.com> Subject: Re: WARNING in kfree From: syzbot To: dhowells@redhat.com, ebiggers@kernel.org, gregkh@linuxfoundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, rafael@kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org syzbot has bisected this bug to: commit 3deadeebafcec6a0a7c9397bd32ea5ac6d5191c1 Author: David Howells Date: Mon Jan 21 14:04:22 2019 +0000 vfs: Convert debugfs to use the new mount API bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=115d9e56600000 start commit: ed2393ca Add linux-next specific files for 20190827 git tree: linux-next final crash: https://syzkaller.appspot.com/x/report.txt?x=135d9e56600000 console output: https://syzkaller.appspot.com/x/log.txt?x=155d9e56600000 kernel config: https://syzkaller.appspot.com/x/.config?x=2ef5940a07ed45f4 dashboard link: https://syzkaller.appspot.com/bug?extid=5aca688dac0796c56129 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1595ee12600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=16df7fd2600000 Reported-by: syzbot+5aca688dac0796c56129@syzkaller.appspotmail.com Fixes: 3deadeebafce ("vfs: Convert debugfs to use the new mount API") For information about bisection process see: https://goo.gl/tpsmEJ#bisection