From: Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
To: Will Drewry <wad-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
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jmorris-gx6/JNMH7DfYtjvyW6yDsg@public.gmane.org,
Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>,
linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH v17 01/15] Add PR_{GET,SET}_NO_NEW_PRIVS to prevent execve from granting privs
Date: Fri, 6 Apr 2012 12:55:17 -0700 [thread overview]
Message-ID: <20120406125517.77133b4e.akpm@linux-foundation.org> (raw)
In-Reply-To: <1333051320-30872-2-git-send-email-wad-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
On Thu, 29 Mar 2012 15:01:46 -0500
Will Drewry <wad-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org> wrote:
> From: Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>
>
> With this set, a lot of dangerous operations (chroot, unshare, etc)
> become a lot less dangerous because there is no possibility of
> subverting privileged binaries.
The changelog doesn't explain the semantics of the new syscall.
There's a comment way-down-there which I guess suffices, if you hunt
for it.
And the changelog doesn't explain why this is being added. Presumably
seccomp_filter wants/needs this feature but whowhatwherewhenwhy? Spell
it all out, please.
The new syscall mode will be documented in the prctl manpage. Please
cc linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org and work with Michael on getting this
done?
>
> ...
>
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next parent reply other threads:[~2012-04-06 19:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1333051320-30872-1-git-send-email-wad@chromium.org>
[not found] ` <1333051320-30872-2-git-send-email-wad@chromium.org>
[not found] ` <1333051320-30872-2-git-send-email-wad-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
2012-04-06 19:55 ` Andrew Morton [this message]
2012-04-06 20:01 ` [PATCH v17 01/15] Add PR_{GET,SET}_NO_NEW_PRIVS to prevent execve from granting privs Andrew Lutomirski
2012-04-06 20:28 ` Jonathan Corbet
2012-04-06 20:37 ` Andrew Lutomirski
2012-04-11 19:31 ` Michael Kerrisk (man-pages)
2012-04-12 0:15 ` Michael Kerrisk (man-pages)
2012-04-12 0:50 ` Andrew Lutomirski
2012-04-16 19:11 ` Rob Landley
2012-04-10 20:37 ` Rob Landley
2012-04-10 19:03 ` Will Drewry
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