Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Thu, 29 Sep 2011 21:25:31 +0400
From: Vasiliy Kulikov <>
Cc: David Rientjes <>, Christoph Lameter <>,
	Pekka Enberg <>, Matt Mackall <>,
	Andrew Morton <>,,
	Kees Cook <>, Dave Hansen <>,
	Linus Torvalds <>,
	Alan Cox <>,
Subject: Re: Re: [PATCH 2/2] mm: restrict access to

On Thu, Sep 29, 2011 at 12:57 -0400, wrote:
> But now he has to fly blind for the next 30 because the numbers will display
> exactly the same, and he can't correct for somebody else allocating one so he
> needs to only allocate 29...

You're still talking about "slabinfo", which is already restricted.

And meminfo can be still learned with the same race window (ala seq lock):

    fill_slabs(); // Here we know counters with KB granularity
    while (number_is_not_ok()) {


Vasiliy Kulikov - bringing security into open computing environments

Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.