From: Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>
To: "Mickaël Salaün" <mic-WFhQfpSGs3bR7s880joybQ@public.gmane.org>
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Alexei Starovoitov <ast-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>,
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
Casey Schaufler <casey-iSGtlc1asvQWG2LlvL+J4A@public.gmane.org>,
Daniel Borkmann <daniel-FeC+5ew28dpmcu3hnIyYJQ@public.gmane.org>,
Daniel Mack <daniel-cYrQPVfZoowdnm+yROfE0A@public.gmane.org>,
David Drysdale <drysdale-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>,
"David S . Miller"
<davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>,
Elena Reshetova
<elena.reshetova-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
James Morris
<james.l.morris-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>,
Kees Cook <keescook-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
Paul Moore <pmoore-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Sargun Dhillon <sargun-GaZTRHToo+CzQB+pC5nmwQ@public.gmane.org>,
"Serge E . Hallyn"
<serge-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>,
Will Drewry <wad-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>,
kernel-hardening-ZwoEplunGu1jrUoiu81ncdBPR1lH4CV8@public.gmane.org,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-security-module-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [RFC v2 00/10] Landlock LSM: Unprivileged sandboxing
Date: Sat, 24 Sep 2016 09:45:25 +0200 [thread overview]
Message-ID: <20160924074525.GA28371@amd> (raw)
In-Reply-To: <57E16D07.4050301-WFhQfpSGs3bR7s880joybQ@public.gmane.org>
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On Tue 2016-09-20 19:08:23, Mickaël Salaün wrote:
>
> On 15/09/2016 11:19, Pavel Machek wrote:
> > Hi!
> >
> >> This series is a proof of concept to fill some missing part of seccomp as the
> >> ability to check syscall argument pointers or creating more dynamic security
> >> policies. The goal of this new stackable Linux Security Module (LSM) called
> >> Landlock is to allow any process, including unprivileged ones, to create
> >> powerful security sandboxes comparable to the Seatbelt/XNU Sandbox or the
> >> OpenBSD Pledge. This kind of sandbox help to mitigate the security impact of
> >> bugs or unexpected/malicious behaviors in userland applications.
> >>
> >> The first RFC [1] was focused on extending seccomp while staying at the syscall
> >> level. This brought a working PoC but with some (mitigated) ToCToU race
> >> conditions due to the seccomp ptrace hole (now fixed) and the non-atomic
> >> syscall argument evaluation (hence the LSM hooks).
> >
> > Long and nice description follows. Should it go to Documentation/
> > somewhere?
> >
> > Because some documentation would be useful...
>
> Right, but I was looking for feedback before investing in documentation. :)
Heh. And I was hoping to learn what I'm reviewing. Too bad :-).
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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next prev parent reply other threads:[~2016-09-24 7:45 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-25 10:32 [RFC v2 00/10] Landlock LSM: Unprivileged sandboxing Mickaël Salaün
2016-08-25 10:32 ` [RFC v2 01/10] landlock: Add Kconfig Mickaël Salaün
2016-08-25 10:32 ` [RFC v2 02/10] bpf: Move u64_to_ptr() to BPF headers and inline it Mickaël Salaün
2016-08-25 10:32 ` [RFC v2 03/10] bpf,landlock: Add a new arraymap type to deal with (Landlock) handles Mickaël Salaün
2016-08-25 10:32 ` [RFC v2 04/10] seccomp: Split put_seccomp_filter() with put_seccomp() Mickaël Salaün
2016-08-25 10:32 ` [RFC v2 05/10] seccomp: Handle Landlock Mickaël Salaün
2016-08-25 10:32 ` [RFC v2 06/10] landlock: Add LSM hooks Mickaël Salaün
2016-08-30 18:56 ` Andy Lutomirski
2016-08-30 20:10 ` Mickaël Salaün
2016-08-30 20:18 ` Andy Lutomirski
2016-08-30 20:27 ` Mickaël Salaün
2016-08-25 10:32 ` [RFC v2 07/10] landlock: Add errno check Mickaël Salaün
2016-08-25 11:13 ` Andy Lutomirski
2016-08-25 10:32 ` [RFC v2 08/10] landlock: Handle file system comparisons Mickaël Salaün
2016-08-25 11:12 ` Andy Lutomirski
2016-08-25 14:10 ` Mickaël Salaün
2016-08-26 14:57 ` Andy Lutomirski
2016-08-27 13:45 ` Mickaël Salaün
2016-08-25 10:32 ` [RFC v2 09/10] landlock: Handle cgroups Mickaël Salaün
2016-08-25 11:09 ` Andy Lutomirski
2016-08-25 14:44 ` Mickaël Salaün
2016-08-26 12:55 ` Tejun Heo
2016-08-26 14:20 ` Andy Lutomirski
2016-08-26 15:50 ` Tejun Heo
2016-08-26 2:14 ` Alexei Starovoitov
2016-08-26 15:10 ` Mickaël Salaün
2016-08-26 23:05 ` Alexei Starovoitov
[not found] ` <20160826230539.GA26683-+o4/htvd0TDFYCXBM6kdu7fOX0fSgVTm@public.gmane.org>
2016-08-27 7:30 ` Andy Lutomirski
2016-08-27 18:11 ` Alexei Starovoitov
[not found] ` <20160827181153.GB38754-+o4/htvd0TDFYCXBM6kdu7fOX0fSgVTm@public.gmane.org>
2016-08-28 8:14 ` Andy Lutomirski
2016-08-27 14:06 ` [RFC v2 09/10] landlock: Handle cgroups (performance) Mickaël Salaün
[not found] ` <57C19E6E.6040908-WFhQfpSGs3bR7s880joybQ@public.gmane.org>
2016-08-27 18:06 ` Alexei Starovoitov
2016-08-27 19:35 ` Mickaël Salaün
[not found] ` <57C1EB72.2050703-WFhQfpSGs3bR7s880joybQ@public.gmane.org>
2016-08-27 20:43 ` Alexei Starovoitov
2016-08-27 21:14 ` Mickaël Salaün
2016-08-28 8:13 ` Andy Lutomirski
2016-08-28 9:42 ` Mickaël Salaün
2016-08-30 18:55 ` Andy Lutomirski
2016-08-30 20:20 ` Mickaël Salaün
[not found] ` <57C5EAA3.5090901-WFhQfpSGs3bR7s880joybQ@public.gmane.org>
2016-08-30 20:23 ` Andy Lutomirski
2016-08-30 20:33 ` Mickaël Salaün
[not found] ` <57C5ED9B.3040303-WFhQfpSGs3bR7s880joybQ@public.gmane.org>
2016-08-30 20:55 ` Alexei Starovoitov
[not found] ` <20160830205552.GB71063-+o4/htvd0TDFYCXBM6kdu7fOX0fSgVTm@public.gmane.org>
2016-08-30 21:45 ` Andy Lutomirski
2016-08-31 1:36 ` Alexei Starovoitov
[not found] ` <20160831013605.GB75654-+o4/htvd0TDFYCXBM6kdu7fOX0fSgVTm@public.gmane.org>
2016-08-31 3:29 ` Andy Lutomirski
2016-08-27 14:19 ` [RFC v2 09/10] landlock: Handle cgroups (netfilter match) Mickaël Salaün
[not found] ` <57C1A159.3040905-WFhQfpSGs3bR7s880joybQ@public.gmane.org>
2016-08-27 18:32 ` Alexei Starovoitov
2016-08-27 14:34 ` [RFC v2 09/10] landlock: Handle cgroups (program types) Mickaël Salaün
2016-08-27 18:19 ` Alexei Starovoitov
2016-08-27 19:55 ` Mickaël Salaün
[not found] ` <57C1F015.1000301-WFhQfpSGs3bR7s880joybQ@public.gmane.org>
2016-08-27 20:56 ` Alexei Starovoitov
2016-08-27 21:18 ` Mickaël Salaün
2016-08-25 10:32 ` [RFC v2 10/10] samples/landlock: Add sandbox example Mickaël Salaün
2016-08-25 11:05 ` [RFC v2 00/10] Landlock LSM: Unprivileged sandboxing Andy Lutomirski
2016-08-25 13:57 ` Mickaël Salaün
2016-08-27 7:40 ` Andy Lutomirski
2016-08-27 15:10 ` Mickaël Salaün
2016-08-27 15:21 ` [RFC v2 00/10] Landlock LSM: Unprivileged sandboxing (cgroup delegation) Mickaël Salaün
2016-08-30 16:06 ` [RFC v2 00/10] Landlock LSM: Unprivileged sandboxing Andy Lutomirski
2016-08-30 19:51 ` Mickaël Salaün
2016-08-30 19:55 ` Andy Lutomirski
2016-09-15 9:19 ` Pavel Machek
2016-09-20 17:08 ` Mickaël Salaün
[not found] ` <57E16D07.4050301-WFhQfpSGs3bR7s880joybQ@public.gmane.org>
2016-09-24 7:45 ` Pavel Machek [this message]
2016-10-03 22:56 ` Kees Cook
2016-10-05 20:30 ` Mickaël Salaün
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