From owner-freebsd-questions@freebsd.org Wed Sep 2 13:56:10 2015 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 563329C8685 for ; Wed, 2 Sep 2015 13:56:10 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: from mail-wi0-x22a.google.com (mail-wi0-x22a.google.com [IPv6:2a00:1450:400c:c05::22a]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id E562CCE9 for ; Wed, 2 Sep 2015 13:56:09 +0000 (UTC) (envelope-from amvandemore@gmail.com) Received: by wicfx3 with SMTP id fx3so20106739wic.0 for ; Wed, 02 Sep 2015 06:56:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=bqXjkhGR2BFWLDBNOsTBHKIrw5hqIKxi8CV9l0KuDz0=; b=CqnUvMGm34/n5ExkhTH2LK1KYj3KZwfdjFwzo71WMBKknpOX7xO2IQhhnEUYP158Ul kVDaQO70uSszxpXFMoH+UD15EVgN2RVozFgNNyTR0Y61uqNGM5md0OtnIUubm48xfAvk 9H1aQGAJxonjxyH48N5GHZwqr/gkKCAmf9VlsgdB8Nltb1ruMQ5brrPiEHxWxl8DB+PL YNWaz6QEBAiqDnxOnBu4nTbBwpyY1vPGlTIm187HzVny3dyveGFBGKflhEX266VMJ7xt 428f1MTEngTljbRCjA8jNE7uizyLH1d/p8A2LTAGpbaxQ0UD6qFDHjUO7nK8wLwhwq3t f4Mg== MIME-Version: 1.0 X-Received: by 10.181.13.228 with SMTP id fb4mr4525935wid.10.1441202167241; Wed, 02 Sep 2015 06:56:07 -0700 (PDT) Received: by 10.194.67.5 with HTTP; Wed, 2 Sep 2015 06:56:07 -0700 (PDT) In-Reply-To: <55E6E26A.1040706@kulturflatrate.net> References: <55E6E26A.1040706@kulturflatrate.net> Date: Wed, 2 Sep 2015 08:56:07 -0500 Message-ID: Subject: Re: Jail causes host to reboot From: Adam Vande More To: Niklaas Baudet von Gersdorff Cc: FreeBSD Questions Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Sep 2015 13:56:10 -0000 On Wed, Sep 2, 2015 at 6:50 AM, Niklaas Baudet von Gersdorff < niklaas@kulturflatrate.net> wrote: > how a malfunctioning jail can cause an > entire host system to reboot? > A jail is used for isolation and security. It isn't intended to prevent kernel panics and other such issues. For example, if a jail accesses a corrupt fs, it may cause a panic and probably a reboot depending on configuration. An expectation of jails protecting against such a thing is misguided. -- Adam