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=-5.7 required=3.0 tests=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 EE4A4FA372A for ; Wed, 16 Oct 2019 16:09:58 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C38232067D for ; Wed, 16 Oct 2019 16:09:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C38232067D Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:45184 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iKls6-000295-0F for qemu-devel@archiver.kernel.org; Wed, 16 Oct 2019 12:09:58 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57468) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iKlkX-0003jT-Lt for qemu-devel@nongnu.org; Wed, 16 Oct 2019 12:02:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iKlkV-00085h-AC for qemu-devel@nongnu.org; Wed, 16 Oct 2019 12:02:08 -0400 Received: from mx1.redhat.com ([209.132.183.28]:32652) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iKlkV-000840-4x for qemu-devel@nongnu.org; Wed, 16 Oct 2019 12:02:07 -0400 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 09C5FC0546D5 for ; Wed, 16 Oct 2019 16:02:05 +0000 (UTC) Received: from localhost (unknown [10.36.118.69]) by smtp.corp.redhat.com (Postfix) with ESMTP id 8571A601B7; Wed, 16 Oct 2019 16:01:58 +0000 (UTC) From: Stefan Hajnoczi To: qemu-devel@nongnu.org Subject: [PATCH 0/2] virtiofsd: add net and pid namespace sandboxing Date: Wed, 16 Oct 2019 17:01:55 +0100 Message-Id: <20191016160157.12414-1-stefanha@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.32]); Wed, 16 Oct 2019 16:02:05 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: virtio-fs@redhat.com, "Dr. David Alan Gilbert" , Stefan Hajnoczi Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" These patches are based on gitlab.com/virtio-fs/qemu.git virtio-fs-dev. virtiofsd is sandboxed so that it does not have access to the system in t= he event that the process is compromised. At the moment we use seccomp and = mount namespaces to restrict the list of allowed syscalls and only give access = to the shared directory. This patch series enhances sandboxing by putting virtiofsd into an empty network and pid namespace. If the process is compromised it will be unab= le to perform network activity, even to localhost services running on the host.= It will also be unable to see other processes running on the system since it= runs as pid 1 in a new pid namespace. These enhancements are inspired by the Crosvm virtio-fs device's jail configuration. Stefan Hajnoczi (2): virtiofsd: move to an empty network namespace virtiofsd: move to a new pid namespace contrib/virtiofsd/passthrough_ll.c | 109 +++++++++++++++++++++++------ 1 file changed, 86 insertions(+), 23 deletions(-) --=20 2.21.0