linux-kernel - [PATCH v2 0/3] seccomp: add PR_SECCOMP_EXT and SECCOMP_EXT_ACT

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Message-Id: <1397757904-30665-1-git-send-email-keescook@chromium.org>
Date:	Thu, 17 Apr 2014 11:05:01 -0700
From:	Kees Cook <keescook@...omium.org>
To:	linux-kernel@...r.kernel.org
Cc:	John Johansen <john.johansen@...onical.com>,
	Kees Cook <keescook@...omium.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Andy Lutomirski <luto@...capital.net>,
	Will Drewry <wad@...omium.org>,
	Julien Tinnes <jln@...omium.org>, linux-doc@...r.kernel.org,
	linux-security-module@...r.kernel.org
Subject: [PATCH v2 0/3] seccomp: add PR_SECCOMP_EXT and SECCOMP_EXT_ACT_TSYNC

This adds the ability for threads to request seccomp filter 
synchronization across their thread group. To support this, 
seccomp locking on writes is introduced, along with refactoring
of no_new_privs. Races with thread creation are handled via the
tasklist_list. 

I think all the concerns raised during the discussion[1] of the first
version of this patch have been addressed. However, the races involved
have tricked me before. :)

Thanks!

-Kees

[1] https://lkml.org/lkml/2014/1/13/795

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