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=-4.6 required=3.0 tests=DATE_IN_PAST_06_12, FROM_LOCAL_HEX,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_PASS autolearn=ham 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 02E9DC282DA for ; Fri, 19 Apr 2019 18:50:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BE39120645 for ; Fri, 19 Apr 2019 18:50:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728186AbfDSSuM (ORCPT ); Fri, 19 Apr 2019 14:50:12 -0400 Received: from mail-it1-f198.google.com ([209.85.166.198]:59619 "EHLO mail-it1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727038AbfDSSuM (ORCPT ); Fri, 19 Apr 2019 14:50:12 -0400 Received: by mail-it1-f198.google.com with SMTP id 75so6220402itz.9 for ; Fri, 19 Apr 2019 11:50:11 -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=Kf/mLZwwDGuwydxNf3kA3IzwdmfZD8nAnja7XQe90tI=; b=Xmzj6cElL/+/qF1AUJt0diBtqdE3ZzyUy/Fd/Rj5wmr8WiFMVWomRhnsQxM3j8lohh qI4Aka8kXYeYCqPCREWnK396/lfp2osKJZOEZaP3wzW22et1QOuYfW14nmt3GDGCVabU YO90UX05er1CMjPi9+pFrXDjIBMrjUh5AVFrVWEHeuyCp/JFPuk5MZJrL/pkD+vsj3VS MuYOncjtjFe2LqJGBqqWIDtK4H0KCDYGv9Ab1nhaLyeEIElT3xX33UoBTHfmxA4Lbj8A +79WM2K0Ut2JGVXGYJ1NET9uYN8pqxb7lAdBMiSxWWZWbLB8/BwnUr2D8pM6INijZE8T dg2w== X-Gm-Message-State: APjAAAV2ZFaR/v/QHE/6ZB1Jv8xXgq9FJaNhZ9k3i9mKMPDe6yLOCf7S owKZZtMvIZMo+/qwuYzTMmGhXMPlq/OZVEQHmDkxsGMMUIx7 X-Google-Smtp-Source: APXvYqzSFYToQgXxO8Dw1/Ul4k8N6ZQOVhQVQ4nOFyqZCJdphRXTSHQ3+K/mPlVqcmCFzuCixB4UX6Mq8VIYn7MDQ7eB1Z2QuZOW MIME-Version: 1.0 X-Received: by 2002:a24:90:: with SMTP id 138mr1955088ita.69.1555663980540; Fri, 19 Apr 2019 01:53:00 -0700 (PDT) Date: Fri, 19 Apr 2019 01:53:00 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f33b220586de3e9b@google.com> Subject: Re: WARNING in ovl_instantiate From: syzbot To: amir73il@gmail.com, dvyukov@google.com, linux-kernel@vger.kernel.org, linux-unionfs@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 Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+9c69c282adc4edd2b540@syzkaller.appspotmail.com Tested on: commit: 59ef64de ovl: detect overlapping layers git tree: https://github.com/amir73il/linux.git ovl-check-overlap kernel config: https://syzkaller.appspot.com/x/.config?x=f3ee46e9dfc8a383 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Note: testing is done by a robot and is best-effort only.