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=-8.7 required=3.0 tests=BAYES_00,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 1C1EFC4707F for ; Thu, 27 May 2021 12:12:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EEC57613AA for ; Thu, 27 May 2021 12:12:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235219AbhE0MNo (ORCPT ); Thu, 27 May 2021 08:13:44 -0400 Received: from mail-io1-f70.google.com ([209.85.166.70]:42960 "EHLO mail-io1-f70.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234406AbhE0MNn (ORCPT ); Thu, 27 May 2021 08:13:43 -0400 Received: by mail-io1-f70.google.com with SMTP id v21-20020a5d90550000b0290439ea50822eso119209ioq.9 for ; Thu, 27 May 2021 05:12:10 -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=46mVEuJH/YuNKj25ujtfNRaINuWhkbWMehm7Zy9vBuE=; b=Uia1yDUzV9ITVb+Csq8mm1Ly3Npv1lIJYSC6VXn8IkX99eGwRiBoYX3TfPds+wN9Pu mWPsSUFUNoekWlN6ymnha0RFm0U4VlWwLiOCMie1MuNEmCU9dMr6mYXI8oQK2v8pTcWO vQnBtq7S5gXUgj6WasLu3pbEc6dXtuv+JcHDMIePYDKiQ4uS3tcaaAirYaeHpYzRlHD/ lmSYSux3fNz8veqnoEnOGRUQ3Iyw6C1l1jvN+S02PGlT/aRt8UGOSrcfJAdeOdhqTVnM npdGx2iHG0O05pTJq15R6HQNJwjC8QFJXEnfflnBdEt9tOSqFm8Ce83RcOL8nsDxR8u8 nHqA== X-Gm-Message-State: AOAM5304L+n+U4C2pjUWAEeCvsIgAyVu/7TaAnZmiRVQy82d4SzZZfpt IXExJpLK+NzJaa7RD+7Z01+AqzdKck62zopKz1MKdNP13YVZ X-Google-Smtp-Source: ABdhPJzicngFIhcR3y7yyEzuzR3OswrH6+bi3jHdWU5Ff7csPGpfT7+kunHdl2ah7f6px7VT9I9RpYInhqM4U//vUHOLIhH23JnZ MIME-Version: 1.0 X-Received: by 2002:a5e:8c11:: with SMTP id n17mr2544565ioj.53.1622117529759; Thu, 27 May 2021 05:12:09 -0700 (PDT) Date: Thu, 27 May 2021 05:12:09 -0700 In-Reply-To: <000000000000b808c705c345b35d@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000025334e05c34eab2c@google.com> Subject: Re: [syzbot] unexpected kernel reboot (5) From: syzbot To: dvyukov@google.com, gregkh@linuxfoundation.org, hch@lst.de, joey.jiaojg@gmail.com, linux-kernel@vger.kernel.org, penguin-kernel@i-love.sakura.ne.jp, sidgup@codeaurora.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot has bisected this issue to: commit f2d6c2708bd84ca953fa6b6ca5717e79eb0140c7 Author: Christoph Hellwig Date: Wed Jan 20 20:46:31 2021 +0000 kernfs: wire up ->splice_read and ->splice_write bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=144ee113d00000 start commit: 7ac3a1c1 Merge tag 'mtd/fixes-for-5.13-rc4' of git://git.k.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=164ee113d00000 console output: https://syzkaller.appspot.com/x/log.txt?x=124ee113d00000 kernel config: https://syzkaller.appspot.com/x/.config?x=266cda122a0b56c dashboard link: https://syzkaller.appspot.com/bug?extid=6fb8ff5211d3e821398f syz repro: https://syzkaller.appspot.com/x/repro.syz?x=154e8703d00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=171382d3d00000 Reported-by: syzbot+6fb8ff5211d3e821398f@syzkaller.appspotmail.com Fixes: f2d6c2708bd8 ("kernfs: wire up ->splice_read and ->splice_write") For information about bisection process see: https://goo.gl/tpsmEJ#bisection