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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 A8942C43603 for ; Thu, 5 Dec 2019 20:26:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7BE1E20707 for ; Thu, 5 Dec 2019 20:26:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729870AbfLEU0B (ORCPT ); Thu, 5 Dec 2019 15:26:01 -0500 Received: from mail-il1-f198.google.com ([209.85.166.198]:44890 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729240AbfLEU0B (ORCPT ); Thu, 5 Dec 2019 15:26:01 -0500 Received: by mail-il1-f198.google.com with SMTP id h87so3446251ild.11 for ; Thu, 05 Dec 2019 12:26:00 -0800 (PST) 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=AMndx8hKdrf5iaXiiQjZKFNKn0Vs2y02qLzZazcs3CU=; b=hthHIRZ/cAoR3aUxiQeVEgYG+vQkn2BK84S/LBjSNpuft1Pt50arj3XoavtkYTQQGp TtM1ggHYFyymuxgwQgNX1alFGUiW2/UlDlrTIy2JM9ZhGXGo86iR6ltOAh7r450XMadM yQd3fi4GCS+j4x/B7Ejntxi2lMch53BYfTvOlECTYOgQIBt/ezqlrQWSrXg+pG18k8Dl vxJptcBnzyWtpEJr1QaRGo/fD+lX2c/0dZlyxAfUxzNCxnQPZp70VrtuInhqvSLU+sOF ypj2+pIJ1h1QwwH9W3lMO2OvMzB2nNKbwKQa2TueKLQRy6/IpzOZYys2KFBaEsbKJmX0 FHEA== X-Gm-Message-State: APjAAAW/M+y2M2Fa/ddltTdLQrdGiW6ELdd/XpZjz6AgoZkaewMQyS/6 fIayzJKdlzoyAeaEQto2uTAxOHydwvcgQwjVjtp2k6I5uLQQ X-Google-Smtp-Source: APXvYqwiSIAto3Fuczl3Mloud2GJhz4nWhZmFjdSE7R2+4HUud1uZ12DR1iX6fOWVWwSNwnDp6A3S3YOROzLJiWU36yLPucT+7Cj MIME-Version: 1.0 X-Received: by 2002:a05:6602:2541:: with SMTP id j1mr7805807ioe.239.1575577560491; Thu, 05 Dec 2019 12:26:00 -0800 (PST) Date: Thu, 05 Dec 2019 12:26:00 -0800 In-Reply-To: <000000000000675cea057e201cbb@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000cf2c140598fabc5c@google.com> Subject: Re: BUG: unable to handle kernel paging request in slhc_free From: syzbot To: adobriyan@gmail.com, akinobu.mita@gmail.com, akpm@linux-foundation.org, ben@decadent.org.uk, davem@davemloft.net, dvyukov@google.com, linux-kernel@vger.kernel.org, mhocko@kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tejaswit@codeaurora.org, torvalds@linux-foundation.org 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 syzbot suspects this bug was fixed by commit: commit baf76f0c58aec435a3a864075b8f6d8ee5d1f17e Author: Linus Torvalds Date: Thu Apr 25 23:13:58 2019 +0000 slip: make slhc_free() silently accept an error pointer bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=114af97ee00000 start commit: 8fe28cb5 Linux 4.20 git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=7d581260bae0899a dashboard link: https://syzkaller.appspot.com/bug?extid=6c5d567447bfa30f78e2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=136130fd400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1607c563400000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: slip: make slhc_free() silently accept an error pointer For information about bisection process see: https://goo.gl/tpsmEJ#bisection