From: Linus Torvalds <torvalds@linux-foundation.org>
To: Will Drewry <wad@chromium.org>
Cc: linux-kernel@vger.kernel.org, keescook@chromium.org,
john.johansen@canonical.com, serge.hallyn@canonical.com,
coreyb@linux.vnet.ibm.com, pmoore@redhat.com, eparis@redhat.com,
djm@mindrot.org, segoon@openwall.com, rostedt@goodmis.org,
jmorris@namei.org, scarybeasts@gmail.com, avi@redhat.com,
penberg@cs.helsinki.fi, viro@zeniv.linux.org.uk, luto@mit.edu,
mingo@elte.hu, akpm@linux-foundation.org, khilman@ti.com,
borislav.petkov@amd.com, amwang@redhat.com, oleg@redhat.com,
ak@linux.intel.com, eric.dumazet@gmail.com, gregkh@suse.de,
dhowells@redhat.com, daniel.lezcano@free.fr,
linux-fsdevel@vger.kernel.org,
linux-security-module@vger.kernel.org, olofj@chromium.org,
mhalcrow@google.com, dlaor@redhat.com, corbet@lwn.net,
alan@lxorguk.ukuu.org.uk
Subject: Re: [PATCH PLACEHOLDER 1/3] fs/exec: "always_unprivileged" patch
Date: Thu, 12 Jan 2012 15:47:48 -0800 [thread overview]
Message-ID: <CA+55aFz4mJU2E2BPzZyVQ52V_ytg_8fyAH+BV_uYHVXBM2wqDw@mail.gmail.com> (raw)
In-Reply-To: <1326411506-16894-1-git-send-email-wad@chromium.org>
On Thu, Jan 12, 2012 at 3:38 PM, Will Drewry <wad@chromium.org> wrote:
> This patch is a placeholder until Andy's (luto@mit.edu) patch arrives
> implementing Linus's proposal for applying a "this is a process that has
> *no* extra privileges at all, and can never get them".
I think we can simplify and improve the naming/logic by just saying
"can't change privileges".
I'd argue that that even includes "can't drop them", just to make it
really clear what the rules are.
So the usage model would be to first simply set the privileges to
whatever you want the sandbox to be, and then enter the restricted
mode.
Linus
next prev parent reply other threads:[~2012-01-12 23:48 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-12 23:38 [PATCH PLACEHOLDER 1/3] fs/exec: "always_unprivileged" patch Will Drewry
2012-01-12 23:38 ` [PATCH v3 2/3] seccomp_filters: system call filtering using BPF Will Drewry
2012-01-13 0:51 ` Randy Dunlap
2012-01-12 23:59 ` Will Drewry
2012-01-12 23:59 ` Will Drewry
2012-01-13 1:35 ` Randy Dunlap
2012-01-13 17:39 ` Eric Paris
2012-01-13 18:50 ` Will Drewry
2012-01-13 18:50 ` Will Drewry
2012-01-12 23:38 ` [PATCH v3 3/3] Documentation: prctl/seccomp_filter Will Drewry
2012-01-15 1:52 ` Randy Dunlap
2012-01-16 1:41 ` Will Drewry
2012-01-17 23:29 ` Eric Paris
2012-01-17 23:29 ` Eric Paris
2012-01-17 23:54 ` Will Drewry
2012-01-12 23:47 ` Linus Torvalds [this message]
2012-01-13 0:03 ` [PATCH PLACEHOLDER 1/3] fs/exec: "always_unprivileged" patch Will Drewry
2012-01-13 0:42 ` Andrew Lutomirski
2012-01-13 0:57 ` Linus Torvalds
2012-01-13 0:57 ` Linus Torvalds
2012-01-13 1:11 ` Andrew Lutomirski
2012-01-13 1:11 ` Andrew Lutomirski
2012-01-13 1:17 ` Linus Torvalds
2012-01-14 13:30 ` Jamie Lokier
2012-01-14 19:21 ` Will Drewry
2012-01-14 19:21 ` Will Drewry
2012-01-14 20:22 ` Linus Torvalds
2012-01-14 21:04 ` Andrew Lutomirski
2012-01-15 20:16 ` Casey Schaufler
2012-01-15 20:59 ` Andrew Lutomirski
2012-01-15 21:32 ` Casey Schaufler
2012-01-15 21:32 ` Casey Schaufler
2012-01-15 22:07 ` Andrew Lutomirski
2012-01-16 2:04 ` Will Drewry
2012-01-16 2:04 ` Will Drewry
2012-01-18 3:12 ` Eric W. Biederman
2012-01-18 3:12 ` Eric W. Biederman
2012-01-16 2:41 ` Casey Schaufler
2012-01-16 2:41 ` Casey Schaufler
2012-01-16 7:45 ` Andrew Lutomirski
2012-01-16 18:02 ` Casey Schaufler
2012-01-16 18:02 ` Casey Schaufler
2012-01-13 1:37 ` Will Drewry
2012-01-13 1:41 ` Andrew Lutomirski
2012-01-13 1:41 ` Andrew Lutomirski
2012-01-13 2:09 ` Kees Cook
2012-01-13 2:09 ` Kees Cook
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