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 5B7B6C43331 for ; Tue, 24 Mar 2020 02:47:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3DB352073E for ; Tue, 24 Mar 2020 02:47:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727234AbgCXCrI (ORCPT ); Mon, 23 Mar 2020 22:47:08 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:39275 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727047AbgCXCrF (ORCPT ); Mon, 23 Mar 2020 22:47:05 -0400 Received: by mail-io1-f71.google.com with SMTP id v13so11434551iox.6 for ; Mon, 23 Mar 2020 19:47:03 -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=LOv2WyxOQNJMMiel1AjLpQJL3nLG4+bZfZZebAkOi9k=; b=n37W6W65g7ZKvxM1CazULg87/vqfm/hf6zLxb6Qar2PTsVAlLQReEPPo/0xf0daJ80 v+hWZ1Q7sthemeO+H6HxQvcGTTo+0ZnZm0Mkkuu03k4r8j5+E6JbyIK5GnXaB2ltZcfl WEr8JS4EU0LiLW/6UahdDb0WU/pQwtC7L9YimbIktG4WhUnD71kRgm9bLzpU6raanFEg +GsYk9oWlcrTqwlaVpWFJhuAI8sDILATU3MirUwm5aAMMT/LsNKFvZrhdbXZDSfVhEtI r+QuVTLqMofgGc7zygFcmTMk/zPwg459dRqOeDpSaify6Lpf0qBgCOthF7tAywF+9ino +m/w== X-Gm-Message-State: ANhLgQ3Z5oYsvkckEUhsjjeYnYYvo/f2+08+Cc+AmnQdgypI9ZfgoZ+R 9f3mv5QHJf12t/Wpl4KqWKM5ctzzuwILk0YtxOpwHlMKf5FK X-Google-Smtp-Source: ADFU+vstiI7NkY8P0sLiaAwA1tlgY+DAUVfkvxxrtQc1GUcIriiMD4ZAGZsTUHBhY7pwHk2p3ulODfmE2r7ZpymGWtd3GqW4WeUB MIME-Version: 1.0 X-Received: by 2002:a02:6cd5:: with SMTP id w204mr22866930jab.43.1585018023533; Mon, 23 Mar 2020 19:47:03 -0700 (PDT) Date: Mon, 23 Mar 2020 19:47:03 -0700 In-Reply-To: <000000000000a6f2030598bbe38c@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004162e805a190c456@google.com> Subject: Re: WARNING in wp_page_copy From: syzbot To: akpm@linux-foundation.org, andriin@fb.com, ast@kernel.org, bjorn.topel@intel.com, bpf@vger.kernel.org, catalin.marinas@arm.com, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, jmoyer@redhat.com, john.fastabend@gmail.com, jonathan.lemon@gmail.com, justin.he@arm.com, kafai@fb.com, kirill.shutemov@linux.intel.com, kirill@shutemov.name, linux-kernel@vger.kernel.org, linux-mm@kvack.org, magnus.karlsson@gmail.com, magnus.karlsson@intel.com, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, torvalds@linux-foundation.org, yhs@fb.com Content-Type: text/plain; charset="UTF-8" Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org syzbot suspects this bug was fixed by commit: commit c3e5ea6ee574ae5e845a40ac8198de1fb63bb3ab Author: Kirill A. Shutemov Date: Fri Mar 6 06:28:32 2020 +0000 mm: avoid data corruption on CoW fault into PFN-mapped VMA bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1170c813e00000 start commit: e31736d9 Merge tag 'nios2-v5.5-rc2' of git://git.kernel.or.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=79f79de2a27d3e3d dashboard link: https://syzkaller.appspot.com/bug?extid=9301f2f33873407d5b33 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10fd9fb1e00000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: mm: avoid data corruption on CoW fault into PFN-mapped VMA For information about bisection process see: https://goo.gl/tpsmEJ#bisection