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,URIBL_BLOCKED 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 A322BC31E40 for ; Sat, 3 Aug 2019 07:43:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7F1AE21726 for ; Sat, 3 Aug 2019 07:43:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387417AbfHCHnB (ORCPT ); Sat, 3 Aug 2019 03:43:01 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:56604 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387402AbfHCHnB (ORCPT ); Sat, 3 Aug 2019 03:43:01 -0400 Received: by mail-io1-f70.google.com with SMTP id u25so85244781iol.23 for ; Sat, 03 Aug 2019 00:43:01 -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=yMorIrW4ay3tdK2qTcsDnVE/Pjijxze3b99wXe/WPcY=; b=hsRVGJygSK42j5QltmFiMtMeO7G9kMk9Vc++gvD2NomtKMd4Fd4gtnBZINxyq29ckd NGXA/+niTiTgEqqNhodMN/qL0T8nkrKG5DCNactbFqrn2etOSYAgqP5rOHZPy3l8lUPO cL+qOtJMF69B04NXMpzPD/zIw2SH4sQkPNbcrlmvaLGUY0uzmJiFGM7A8sTwgwX/eaVQ 5eVlx8h7oEDwoFqFiyLnopGF5Tt0yfulRKv0vDeXnhhMDhlHQabYfdbv3UwCvT8tTfyf tOoTcQRg25PfdYteL0xxtYVT1V7YQU4jmVemsCR64ZLOaqLriw0Qj0BxCfrVxnrOa82C 6dqg== X-Gm-Message-State: APjAAAX4yOdl3L30etb0i91UKSQ2VWDQsr44du9oVtDS13wzcjBO+zwv l3i8harnig80RAZdsJ7QaHSyej8tB3FCOXP+ZmDCPRcSDD8m X-Google-Smtp-Source: APXvYqyODxVlDnjmRqYXt2tj0Z1xEFiKx4T/bWkQb1PzdLwDQuMC91pWxkePCa7Pu2aTkOoYz58Kc11H06whknBe3wOWUzTFH6uy MIME-Version: 1.0 X-Received: by 2002:a6b:b804:: with SMTP id i4mr5520996iof.119.1564818180769; Sat, 03 Aug 2019 00:43:00 -0700 (PDT) Date: Sat, 03 Aug 2019 00:43:00 -0700 In-Reply-To: <000000000000a2db16058f2514fa@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cd8e92058f319f8c@google.com> Subject: Re: KASAN: use-after-free Read in blkdev_direct_IO From: syzbot To: arvid.brodin@alten.se, davem@davemloft.net, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk, xiyou.wangcong@gmail.com 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 b9a1e627405d68d475a3c1f35e685ccfb5bbe668 Author: Cong Wang Date: Thu Jul 4 00:21:13 2019 +0000 hsr: implement dellink to clean up resources bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1589f3e8600000 start commit: 1e78030e Merge tag 'mmc-v5.3-rc1' of git://git.kernel.org/.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=1789f3e8600000 console output: https://syzkaller.appspot.com/x/log.txt?x=1389f3e8600000 kernel config: https://syzkaller.appspot.com/x/.config?x=4c7b914a2680c9c6 dashboard link: https://syzkaller.appspot.com/bug?extid=0a0e5f37746013dc7476 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11fa7830600000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12f31c8a600000 Reported-by: syzbot+0a0e5f37746013dc7476@syzkaller.appspotmail.com Fixes: b9a1e627405d ("hsr: implement dellink to clean up resources") For information about bisection process see: https://goo.gl/tpsmEJ#bisection