From: Valdis.Kletnieks@vt.edu
To: Michael Stone <michael@laptop.org>
Cc: "Mark Seaborn" <mrs@mythic-beasts.com>,
linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-security-module@vger.kernel.org,
"Andi Kleen" <andi@firstfloor.org>, "David Lang" <david@lang.hm>,
"Oliver Hartkopp" <socketcan@hartkopp.net>,
"Alan Cox" <alan@lxorguk.ukuu.org.uk>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"Bryan Donlan" <bdonlan@gmail.com>,
"Evgeniy Polyakov" <zbr@ioremap.net>,
"C. Scott Ananian" <cscott@cscott.net>,
"James Morris" <jmorris@namei.org>,
"Eric W. Biederman" <ebiederm@xmission.com>,
"Bernie Innocenti" <bernie@codewiz.org>,
"Randy Dunlap" <randy.dunlap@oracle.com>,
"Américo Wang" <xiyou.wangcong@gmail.com>
Subject: Re: [PATCH 1/3] Security: Add prctl(PR_{GET,SET}_NETWORK) interface. (v2)
Date: Thu, 17 Dec 2009 23:43:58 -0500 [thread overview]
Message-ID: <24998.1261111438@localhost> (raw)
In-Reply-To: Your message of "Thu, 17 Dec 2009 22:29:57 EST." <20091218032957.GA23514@heat>
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On Thu, 17 Dec 2009 22:29:57 EST, Michael Stone said:
> Daniel Bernstein has observed [1] that security-conscious userland processes
> may benefit from the ability to irrevocably remove their ability to create,
> bind, connect to, or send messages except in the case of previously connected
> sockets or AF_UNIX filesystem sockets. We provide this facility by implementing
> support for a new prctl(PR_SET_NETWORK) flag named PR_NETWORK_OFF.
Dan does indeed have a point - but is this better achieved via either
the already-existing LSM interfaces (opening the stacking-LSM can of worms
again), or the SECCOMP framework? We already have 2 other ways to turn off
stuff, do we really want a third way?
Alternatively, could a more generalized prctl interface be leveraged to handle
SECCOMP, and/or other targeted things that want to stack with LSM?
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next prev parent reply other threads:[~2009-12-18 4:46 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-13 3:19 Network isolation with RLIMIT_NETWORK, cont'd Michael Stone
2009-12-13 3:26 ` [PATCH] Security: Implement RLIMIT_NETWORK Michael Stone
2009-12-13 3:30 ` [PATCH] Security: Document RLIMIT_NETWORK Michael Stone
2009-12-13 3:44 ` Network isolation with RLIMIT_NETWORK, cont'd Michael Stone
2009-12-13 5:09 ` setrlimit(RLIMIT_NETWORK) vs. prctl(???) Michael Stone
2009-12-13 5:20 ` Ulrich Drepper
2009-12-15 5:33 ` Michael Stone
2009-12-16 15:30 ` Michael Stone
2009-12-16 15:32 ` [PATCH] Security: Add prctl(PR_{GET,SET}_NETWORK) interface Michael Stone
2009-12-16 15:59 ` Andi Kleen
2009-12-17 1:25 ` Michael Stone
2009-12-17 8:52 ` Andi Kleen
[not found] ` <fb69ef3c0912170906t291a37c4r6c4758ddc7dd300b@mail.gmail.com>
2009-12-17 17:14 ` Andi Kleen
2009-12-17 22:58 ` Mark Seaborn
2009-12-18 3:00 ` Michael Stone
2009-12-18 3:00 ` Michael Stone
2009-12-18 3:29 ` [PATCH 1/3] Security: Add prctl(PR_{GET,SET}_NETWORK) interface. (v2) Michael Stone
2009-12-18 4:43 ` Valdis.Kletnieks [this message]
2009-12-18 15:46 ` Alan Cox
2009-12-18 16:33 ` [PATCH 1/3] Security: Add prctl(PR_{GET,SET}_NETWORK) Michael Stone
2009-12-18 17:20 ` Alan Cox
2009-12-18 17:47 ` Eric W. Biederman
2009-12-24 6:13 ` Michael Stone
2009-12-24 12:37 ` Eric W. Biederman
2009-12-24 1:42 ` [PATCH 0/3] Discarding networking privilege via LSM Michael Stone
2009-12-24 1:44 ` [PATCH 1/3] Security: Add prctl(PR_{GET,SET}_NETWORK) interface. (v3) Michael Stone
2009-12-24 4:38 ` Samir Bellabes
2009-12-24 5:44 ` Michael Stone
2009-12-24 5:51 ` Tetsuo Handa
2009-12-24 1:45 ` [PATCH 2/3] Security: Implement prctl(PR_SET_NETWORK, PR_NETWORK_OFF) semantics. (v3) Michael Stone
2009-12-24 1:45 ` [PATCH 3/3] Security: Document prctl(PR_{GET,SET}_NETWORK). (v3) Michael Stone
2009-12-25 17:09 ` [PATCH 1/3] Security: Add prctl(PR_{GET,SET}_NETWORK) Pavel Machek
2009-12-18 3:31 ` [PATCH 2/3] Security: Implement prctl(PR_SET_NETWORK, PR_NETWORK_OFF) semantics. (v2) Michael Stone
2009-12-18 3:57 ` Eric W. Biederman
2009-12-18 3:32 ` [PATCH 3/3] Security: Document prctl(PR_{GET,SET}_NETWORK). (v2) Michael Stone
2009-12-18 17:49 ` [PATCH] Security: Add prctl(PR_{GET,SET}_NETWORK) interface Stephen Hemminger
2009-12-19 12:02 ` David Wagner
2009-12-19 12:29 ` Alan Cox
2009-12-20 17:53 ` Mark Seaborn
2009-12-17 9:25 ` Américo Wang
2009-12-17 16:28 ` Michael Stone
2009-12-17 16:28 ` Michael Stone
2009-12-17 17:23 ` Randy Dunlap
2009-12-17 17:25 ` Randy Dunlap
2009-12-16 15:32 ` [PATCH] Security: Implement prctl(PR_SET_NETWORK, PR_NETWORK_OFF) semantics Michael Stone
2009-12-17 19:18 ` Eric W. Biederman
2009-12-16 15:32 ` [PATCH] Security: Document prctl(PR_{GET,SET}_NETWORK) Michael Stone
2009-12-13 8:32 ` Network isolation with RLIMIT_NETWORK, cont'd Rémi Denis-Courmont
2009-12-13 13:44 ` Michael Stone
2009-12-13 13:44 ` Michael Stone
2009-12-13 10:05 ` Eric W. Biederman
2009-12-13 14:21 ` Michael Stone
2009-12-17 17:31 ` Mark Seaborn
2009-12-17 18:24 ` Bryan Donlan
2009-12-17 19:35 ` Bernie Innocenti
2009-12-17 19:53 ` Bryan Donlan
2009-12-17 19:23 ` Bernie Innocenti
2009-12-17 17:52 ` Andi Kleen
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