From: "Markus Gutschke (顧孟勤)" <markus@google.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-mips@linux-mips.org, x86@kernel.org,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
sparclinux@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
stable@kernel.org, Roland McGrath <roland@redhat.com>
Subject: Re: [PATCH 2/2] x86-64: seccomp: fix 32/64 syscall hole
Date: Wed, 6 May 2009 15:21:51 -0700 [thread overview]
Message-ID: <904b25810905061521v62b3ddd6l14deb614d203385a@mail.gmail.com> (raw)
In-Reply-To: <20090506221319.GA11493@elte.hu>
On Wed, May 6, 2009 at 15:13, Ingo Molnar <mingo@elte.hu> wrote:
> doing a (per arch) bitmap of harmless syscalls and replacing the
> mode1_syscalls[] check with that in kernel/seccomp.c would be a
> pretty reasonable extension. (.config controllable perhaps, for
> old-style-seccomp)
>
> It would probably be faster than the current loop over
> mode1_syscalls[] as well.
This would be a great option to improve performance of our sandbox. I
can detect the availability of the new kernel API dynamically, and
then not intercept the bulk of the system calls. This would allow the
sandbox to work both with existing and with newer kernels.
We'll post a kernel patch for discussion in the next few days,
Markus
next prev parent reply other threads:[~2009-05-06 22:21 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090228030226.C0D34FC3DA@magilla.sf.frob.com>
[not found] ` <20090228030413.5B915FC3DA@magilla.sf.frob.com>
[not found] ` <alpine.LFD.2.00.0902271932520.3111@localhost.localdomain>
[not found] ` <alpine.LFD.2.00.0902271948570.3111@localhost.localdomain>
2009-02-28 7:25 ` [PATCH 2/2] x86-64: seccomp: fix 32/64 syscall hole Roland McGrath
2009-02-28 7:31 ` Ingo Molnar
2009-02-28 7:36 ` Roland McGrath
2009-02-28 17:23 ` Linus Torvalds
2009-02-28 17:46 ` [stable] " Greg KH
2009-02-28 17:54 ` Arjan van de Ven
2009-02-28 18:23 ` Greg KH
2009-02-28 20:27 ` Greg KH
2009-02-28 21:09 ` Benjamin Herrenschmidt
2009-03-02 1:44 ` Roland McGrath
2009-05-06 18:42 ` Markus Gutschke
2009-05-06 18:46 ` Markus Gutschke (顧孟勤)
2009-05-06 21:29 ` Ingo Molnar
2009-05-06 21:46 ` Markus Gutschke (顧孟勤)
2009-05-06 21:54 ` Ingo Molnar
2009-05-06 22:08 ` Markus Gutschke (顧孟勤)
2009-05-06 22:13 ` Ingo Molnar
2009-05-06 22:21 ` Markus Gutschke (顧孟勤) [this message]
2009-05-07 4:23 ` Nicholas Miell
2009-05-07 10:11 ` Ingo Molnar
2009-05-10 5:37 ` Pavel Machek
2009-05-08 19:18 ` Andi Kleen
2009-05-07 7:03 ` Roland McGrath
2009-05-07 8:01 ` Markus Gutschke (顧孟勤)
2009-05-07 7:30 ` Roland McGrath
2009-05-07 7:31 ` Roland McGrath
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