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 E7DE4C1975A for ; Thu, 12 Mar 2020 18:35:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CDE00206EB for ; Thu, 12 Mar 2020 18:35:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726749AbgCLSfC (ORCPT ); Thu, 12 Mar 2020 14:35:02 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:51403 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726725AbgCLSfC (ORCPT ); Thu, 12 Mar 2020 14:35:02 -0400 Received: by mail-il1-f199.google.com with SMTP id j12so2558656ilf.18 for ; Thu, 12 Mar 2020 11:35:01 -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=ir7UeiOgRla46VgJyqdvELP5IALvlHJBWBv4Kon2YiQ=; b=o7z+C8jkIsxZ+/TJi464mGMhS6BQtt/+kEvqw+6R6XRAf4aEUaNXNsq6gFNBWY9YnP h76X0ojFO/f6H1m2RHKDgQTgu8qzXJmyAeLrzPXCfd4/jQhqOlr9PL5g88BHp/H0Zisk AHRyDtmJeBN9/MHOtiHlGclejhX+/8DngIXPjCACO2VwNUDtlLeplcxO4FqQds7vwLyK Q/I9NhdNQe74IKsmIi4Cx+99Ent62+a1/nyq2nffKiPTJS8Lv7LXNiCyXOy+IO6BinR6 RXaYzd9Jv3UxCW9t8RLyw4u8qcxJtUADf3AcgsgNlqcEdD0lQI2AuhaIfHlow6V0WNrl m3Yw== X-Gm-Message-State: ANhLgQ3iOKGy53tClngW0+a1hJ4kPTpMtDGRzEoVgqpouXKdOJFryERo SL5KpZT1ihH4sFBl4PapDIYNk+9N5remL7lKrE1dkOek9uZp X-Google-Smtp-Source: ADFU+vuGqMVU/sCZ2uqRsye5iy6iExo0L2KoabBfOjwzUDCql4SHBehAYnSYwmvKUogZv6oHxiMhvYUhcEbBhS3sxDoZr2KgrRRU MIME-Version: 1.0 X-Received: by 2002:a02:5489:: with SMTP id t131mr9106656jaa.134.1584038101466; Thu, 12 Mar 2020 11:35:01 -0700 (PDT) Date: Thu, 12 Mar 2020 11:35:01 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000059489f05a0ac9cae@google.com> Subject: Re: WARNING: lock held when returning to user space in ovl_write_iter From: syzbot To: jiufei.xue@linux.alibaba.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" Sender: linux-unionfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-unionfs@vger.kernel.org Hello, syzbot has tested the proposed patch and the reproducer did not trigger crash: Reported-and-tested-by: syzbot+9331a354f4f624a52a55@syzkaller.appspotmail.com Tested on: commit: 63623fd4 Merge tag 'for-linus' of git://git.kernel.org/pub.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git kernel config: https://syzkaller.appspot.com/x/.config?x=9833e26bab355358 dashboard link: https://syzkaller.appspot.com/bug?extid=9331a354f4f624a52a55 compiler: gcc (GCC) 9.0.0 20181231 (experimental) patch: https://syzkaller.appspot.com/x/patch.diff?x=134ceef9e00000 Note: testing is done by a robot and is best-effort only.