Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Mon, 19 Sep 2011 22:20:16 +0300
From: Pekka Enberg <>
To: Vasiliy Kulikov <>
Cc: Andrew Morton <>,, 
	Kees Cook <>, Cyrill Gorcunov <>, Al Viro <>, 
	Christoph Lameter <>, Matt Mackall <>,,, Dan Rosenberg <>, Theodore Tso <>, 
	Alan Cox <>, Jesper Juhl <>, 
	Linus Torvalds <>
Subject: Re: Re: [RFC PATCH 2/2] mm: restrict access to /proc/slabinfo

On Mon, Sep 19, 2011 at 9:55 PM, Vasiliy Kulikov <> wrote:
> Oh, we also have perf...  Given these are separate interfaces, I think
> slab oriented restriction makes more sense.
> So, now we have:
> /proc/slabinfo
> /sys/kernel/slab
> /proc/meminfo
> 'perf kmem' - not sure what specific files should be guarded

I don't think you can close down 'perf kmem' per se. You need to make
sure the attacker is not able to use perf tracing (of which 'perf kmem' is
a subset).


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.