linux-kernel - Re: [PATCH v5 0/4] arch/arm: support seccomp

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Message-ID: <CAGXu5jKYGCkL3GS4Tbep==WUAqP-c_0edAdgy0XQ84rJxZUU2Q@mail.gmail.com>
Date:	Wed, 14 Nov 2012 11:07:13 -0800
From:	Kees Cook <keescook@...omium.org>
To:	linux-arm-kernel@...ts.infradead.org
Cc:	linux-kernel@...r.kernel.org,
	Russell King <linux@....linux.org.uk>,
	Will Deacon <will.deacon@....com>,
	Geremy Condra <gcondra@...gle.com>,
	Catalin Marinas <catalin.marinas@....com>,
	Al Viro <viro@...iv.linux.org.uk>,
	Kees Cook <keescook@...omium.org>,
	Will Drewry <wad@...omium.org>
Subject: Re: [PATCH v5 0/4] arch/arm: support seccomp

Hi, any more thoughts on this series? I'd really like to get it into
-next. It's been running happily for a while now in the Chrome OS ARM
devices.

Thanks,

-Kees

On Sat, Nov 10, 2012 at 2:44 PM, Kees Cook <keescook@...omium.org> wrote:
> This adds support for seccomp BPF to ARM. When built with the seccomp
> improvement patch waiting in linux-next ("seccomp: Make syscall skipping
> and nr changes more consistent"), this passes the seccomp regression
> test suite: https://github.com/redpig/seccomp
>
> Thanks,
>
> -Kees
>
> ---
> v5:
>  - clean up seccomp failure path, as requested by Will Deacon.
> v4:
>  - fixed syscall_get_arch, thanks to Will Deacon.
> v3:
>  - updates suggested by Russell King:
>    - reduced scope of expansion
>    - leveraged TIF_SYSCALL_WORK bit mask
>    - fixed syscall==-1 short-circuit logic
> v2:
>  - expanded ptrace_syscall_trace() into both callers and do
>    secure_computing() hookup there, as requested by Al Viro.

-- 
Kees Cook
Chrome OS Security
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