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From: Tavis Ormandy <taviso@google.com>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Cyril Hrubis <chrubis@suse.cz>,
	linux-api@vger.kernel.org, LKML <linux-kernel@vger.kernel.org>,
	Michael Kerrisk-manpages <mtk.manpages@gmail.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Sasha Levin <levinsasha928@gmail.com>,
	Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
	scientist@fb.com, Steven Rostedt <rostedt@goodmis.org>,
	Arnd Bergmann <arnd@arndb.de>,
	carlos@redhat.com, syzkaller <syzkaller@googlegroups.com>,
	Kostya Serebryany <kcc@google.com>,
	Mike Frysinger <vapier@google.com>,
	Dave Jones <davej@codemonkey.org.uk>
Subject: Re: Formal description of system call interface
Date: Mon, 21 Nov 2016 07:34:49 -0800	[thread overview]
Message-ID: <CAJ_zFkL3D5dzn+h1ydNg9rF11wrsyCv6uhp5=VNH82d4E5ewUA@mail.gmail.com> (raw)
In-Reply-To: <CACT4Y+aUzdX8NqMu+Y3s53vEmoBw7KysB3g2PEjZ6MyJimki1Q@mail.gmail.com>

On Mon, Nov 21, 2016 at 7:14 AM, Dmitry Vyukov <dvyukov@google.com> wrote:
>
>
> Re more complex side effects. I always feared that a description suitable
> for automatic verification (i.e. zero false positives, otherwise it is useless)
> may be too difficult to achieve.
>
> Cyril, Tavis, can you come up with some set of predicates that can be
> checked automatically yet still useful?
> We can start small, e.g. "must not alter virtual address space".

Yes, I've been working on creating something like this, I have a
simple working prototype. I cant promise it has zero false positives
right now, but I think that is achievable.

Let me dig it up (I had put it on the back burner).

Tavis.

  reply	other threads:[~2016-11-21 15:35 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-06 22:39 Formal description of system call interface Dmitry Vyukov
2016-11-07  0:28 ` Szabolcs Nagy
2016-11-21 15:03   ` Dmitry Vyukov
2016-11-22 13:07     ` Szabolcs Nagy
2016-11-07 10:38 ` Cyril Hrubis
2016-11-21 15:14   ` Dmitry Vyukov
2016-11-21 15:34     ` Tavis Ormandy [this message]
2016-11-21 16:10     ` Cyril Hrubis
2016-11-21 15:37   ` Steven Rostedt
2016-11-21 15:48     ` Dmitry Vyukov
2016-11-21 16:58       ` Cyril Hrubis
2016-11-11 17:10 ` Andy Lutomirski
2016-11-21 15:17   ` Dmitry Vyukov
2017-04-21 15:14 ` Carlos O'Donell

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