linux-kernel - Re: [RESEND][PATCH] prctl: update seccomp sections for mode 2 (BPF)

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Message-ID: <CAKgNAkjBqGn7xnncCvZ3NAUZWPWuNSDA_791s--mu_XFfJCAcQ@mail.gmail.com>
Date:	Mon, 22 Oct 2012 23:43:25 +0200
From:	"Michael Kerrisk (man-pages)" <mtk.manpages@...il.com>
To:	Kees Cook <keescook@...omium.org>
Cc:	linux-man@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, wad@...omium.org
Subject: Re: [RESEND][PATCH] prctl: update seccomp sections for mode 2 (BPF)

>> If the CONFIG_SECCOMP_FILTER permits fork(), is the seccomp setting
>> inherited across fork()? Similar question for execve().
>
> Yes for both. Additionally, the filters are cumulative. (If the
> filters allows prctl, additional filters can be appended; they are run
> in order until the first non-allow result is seen.)

Thanks. I'll add some words to the man page.

Cheers,

Michael


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Author of "The Linux Programming Interface"; http://man7.org/tlpi/
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