From: Valdis.Kletnieks@vt.edu
To: Will Drewry <wad@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
Colin Walters <walters@verbum.org>,
Kees Cook <kees.cook@canonical.com>,
Thomas Gleixner <tglx@linutronix.de>, Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
Steven Rostedt <rostedt@goodmis.org>,
linux-kernel@vger.kernel.org, James Morris <jmorris@namei.org>
Subject: Re: [PATCH 3/5] v2 seccomp_filters: Enable ftrace-based system call filtering
Date: Thu, 26 May 2011 14:22:54 -0400 [thread overview]
Message-ID: <19490.1306434174@turing-police.cc.vt.edu> (raw)
In-Reply-To: Your message of "Thu, 26 May 2011 13:08:10 CDT." <BANLkTimhcqSyQjwbXTn00Huu_5++3MczDw@mail.gmail.com>
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On Thu, 26 May 2011 13:08:10 CDT, Will Drewry said:
> Depending on the need, there is work involved, and there are many ways
> to determine your bounding box. It can be very tight -- where you
> analyze normal workloads (perf,strace,objdump) and accept the fact
> that pathological workloads may result in process death -- or it can
> be quite loose and enable most system calls, just not newer ones,
> let's say. In practice, you might get bit a few times if you're
> overly zealous (I know I have), but it's the difference between
> failing open and failing closed. There are some scenarios where you
> never, ever want to fail-open even at the cost of process death and
> lack of solid insight into a valid failure path.
> Hope that makes sense and isn't too general,
Oh, I already understood all that. :) I'd have to double-check the actual
patch, does it give a (hopefully rate-limited) printk or other hint which
syscall caused the issue, to help in making up the list of needed syscalls?
And we probably want a cleaned-up copy of the quoted paragraph in the
documentation for this feature when it hits the streets. People tuning in late
will need guidance on how to use this in their projects.
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next prev parent reply other threads:[~2011-05-26 18:24 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1305563026.5456.19.camel@gandalf.stny.rr.com>
[not found] ` <20110516165249.GB10929@elte.hu>
[not found] ` <1305565422.5456.21.camel@gandalf.stny.rr.com>
[not found] ` <20110517124212.GB21441@elte.hu>
[not found] ` <1305637528.5456.723.camel@gandalf.stny.rr.com>
[not found] ` <20110517131902.GF21441@elte.hu>
[not found] ` <BANLkTikBK3-KZ10eErQ6Eex_L6Qe2aZang@mail.gmail.com>
[not found] ` <1305807728.11267.25.camel@gandalf.stny.rr.com>
[not found] ` <BANLkTiki8aQJbFkKOFC+s6xAEiuVyMM5MQ@mail.gmail.com>
[not found] ` <BANLkTim9UyYAGhg06vCFLxkYPX18cPymEQ@mail.gmail.com>
[not found] ` <20110524200815.GD27634@elte.hu>
2011-05-24 20:25 ` Kees Cook
2011-05-25 19:09 ` Ingo Molnar
2011-05-25 16:40 ` Will Drewry
[not found] ` <1306254027.18455.47.camel@twins>
[not found] ` <20110524195435.GC27634@elte.hu>
[not found] ` <alpine.LFD.2.02.1105242239230.3078@ionos>
[not found] ` <20110525150153.GE29179@elte.hu>
[not found] ` <alpine.LFD.2.02.1105251836030.3078@ionos>
2011-05-25 18:01 ` Kees Cook
2011-05-25 18:42 ` Linus Torvalds
2011-05-25 19:06 ` Ingo Molnar
2011-05-25 19:54 ` Will Drewry
2011-05-25 19:11 ` Kees Cook
2011-05-25 20:01 ` Linus Torvalds
2011-05-25 20:19 ` Ingo Molnar
2011-06-09 9:00 ` Sven Anders
2011-05-26 14:37 ` Colin Walters
2011-05-26 15:03 ` Linus Torvalds
2011-05-26 15:28 ` Colin Walters
2011-05-26 16:33 ` Will Drewry
2011-05-26 16:46 ` Linus Torvalds
2011-05-26 17:02 ` Will Drewry
2011-05-26 17:04 ` Will Drewry
2011-05-26 17:17 ` Linus Torvalds
2011-05-26 17:38 ` Will Drewry
2011-05-26 18:33 ` Linus Torvalds
2011-05-26 18:47 ` Ingo Molnar
2011-05-26 19:05 ` david
2011-05-26 19:09 ` Eric Paris
2011-05-26 19:46 ` Ingo Molnar
2011-05-26 19:49 ` david
2011-05-26 18:49 ` Will Drewry
2011-06-01 3:10 ` [PATCH v3 01/13] tracing: split out filter initialization and clean up Will Drewry
2011-06-01 3:10 ` [PATCH v3 02/13] tracing: split out syscall_trace_enter construction Will Drewry
2011-06-01 7:00 ` Ingo Molnar
2011-06-01 17:15 ` Will Drewry
2011-06-02 14:29 ` Ingo Molnar
2011-06-02 15:18 ` Will Drewry
2011-06-01 3:10 ` [PATCH v3 03/13] seccomp_filters: new mode with configurable syscall filters Will Drewry
2011-06-02 17:36 ` Paul E. McKenney
2011-06-02 18:14 ` Will Drewry
2011-06-02 19:42 ` Paul E. McKenney
2011-06-02 20:28 ` Will Drewry
2011-06-02 20:46 ` Steven Rostedt
2011-06-02 21:12 ` Paul E. McKenney
2011-06-01 3:10 ` [PATCH v3 04/13] seccomp_filter: add process state reporting Will Drewry
2011-06-01 3:10 ` [PATCH v3 05/13] seccomp_filter: Document what seccomp_filter is and how it works Will Drewry
2011-06-01 21:23 ` Kees Cook
2011-06-01 23:03 ` Will Drewry
2011-06-01 3:10 ` [PATCH v3 06/13] x86: add HAVE_SECCOMP_FILTER and seccomp_execve Will Drewry
2011-06-01 3:10 ` [PATCH v3 07/13] arm: select HAVE_SECCOMP_FILTER Will Drewry
2011-06-01 3:10 ` [PATCH v3 08/13] microblaze: select HAVE_SECCOMP_FILTER and provide seccomp_execve Will Drewry
2011-06-01 5:37 ` Michal Simek
2011-06-01 3:10 ` [PATCH v3 09/13] mips: " Will Drewry
2011-06-01 3:10 ` [PATCH v3 10/13] s390: " Will Drewry
2011-06-01 3:10 ` [PATCH v3 11/13] powerpc: " Will Drewry
2011-06-01 3:10 ` [PATCH v3 12/13] sparc: " Will Drewry
2011-06-01 3:35 ` David Miller
2011-06-01 3:10 ` [PATCH v3 13/13] sh: select HAVE_SECCOMP_FILTER Will Drewry
2011-06-02 5:27 ` Paul Mundt
2011-05-26 17:38 ` [PATCH 3/5] v2 seccomp_filters: Enable ftrace-based system call filtering Valdis.Kletnieks
2011-05-26 18:08 ` Will Drewry
2011-05-26 18:22 ` Valdis.Kletnieks [this message]
2011-05-26 17:07 ` Steven Rostedt
2011-05-26 18:43 ` Casey Schaufler
2011-05-26 18:54 ` Steven Rostedt
2011-05-26 18:34 ` david
2011-05-26 18:54 ` Ingo Molnar
2011-05-26 1:19 ` James Morris
2011-05-26 6:08 ` Avi Kivity
2011-05-26 8:24 ` Ingo Molnar
2011-05-26 8:35 ` Pekka Enberg
2011-05-26 8:49 ` Avi Kivity
2011-05-26 8:57 ` Pekka Enberg
[not found] ` <20110526085939.GG29458@redhat.com>
2011-05-26 10:38 ` Ingo Molnar
2011-05-26 10:46 ` Avi Kivity
2011-05-26 10:46 ` Gleb Natapov
2011-05-26 11:11 ` Ingo Molnar
2011-05-26 9:30 ` Ingo Molnar
2011-05-26 9:48 ` Ingo Molnar
2011-05-26 11:02 ` Avi Kivity
2011-05-26 11:16 ` Ingo Molnar
2011-05-26 10:56 ` Avi Kivity
2011-05-26 11:38 ` Ingo Molnar
2011-05-26 18:06 ` Avi Kivity
2011-05-26 18:15 ` Ingo Molnar
2011-05-26 18:20 ` Avi Kivity
2011-05-26 18:36 ` Ingo Molnar
2011-05-26 18:43 ` Valdis.Kletnieks
2011-05-26 18:50 ` Ingo Molnar
2011-05-26 18:22 ` Peter Zijlstra
2011-05-26 18:38 ` Ingo Molnar
2011-05-27 0:12 ` James Morris
2011-05-29 16:51 ` Aneesh Kumar K.V
2011-05-29 17:02 ` Linus Torvalds
2011-05-29 18:23 ` Al Viro
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