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Date:   Tue, 12 Dec 2017 20:36:15 +0100
From:   Tomáš Trnka <trnka@....com>
To:     Kees Cook <keescook@...omium.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        Paul Moore <pmoore@...hat.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Laura Abbott <labbott@...hat.com>
Subject: Re: System-wide hard RLIMIT_STACK in 4.14.4+ w/ SELinux

On Tuesday, 12 December 2017 20:23:47 CET Kees Cook wrote:
> This is an interesting state for the system to be in, though, it means
> AT_SECURE is being set for virtually all processes too? I would expect
> that might break a lot too (but clearly it hasn't).

Not really. AT_SECURE is set only for the exec that triggers a domain 
transition, but unlike the rlimits it's not inherited by descendants (as long 
as they stay within the same SELinux domain).

2T

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