From: Vasiliy Kulikov <segoon@openwall.com>
To: kernel-hardening@lists.openwall.com
Subject: Re: [kernel-hardening] [RFC] x86, mm: start mmap allocation for libs from low addresses
Date: Fri, 12 Aug 2011 15:05:04 +0400 [thread overview]
Message-ID: <20110812110504.GA4115@albatros> (raw)
In-Reply-To: <20110812105824.GA7141@openwall.com>
On Fri, Aug 12, 2011 at 14:58 +0400, Solar Designer wrote:
> On Fri, Aug 12, 2011 at 02:29:54PM +0400, Vasiliy Kulikov wrote:
> > As a
> > result, it makes it impossible to change the return address on the stack
> > to the address of some library function (e.g. system(3)).
>
> JFYI, this statement is too strong.
[...]
You're right. I was thinking about a single overflow for ret2lib with
1+ argument(s). In general, my statement is wrong, sure.
Thank you!
--
Vasiliy
next prev parent reply other threads:[~2011-08-12 11:05 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-12 10:29 [kernel-hardening] [RFC] x86, mm: start mmap allocation for libs from low addresses Vasiliy Kulikov
2011-08-12 10:58 ` Solar Designer
2011-08-12 11:05 ` Vasiliy Kulikov [this message]
2011-08-25 17:19 ` Vasiliy Kulikov
2011-08-25 17:39 ` Solar Designer
2011-09-02 18:29 ` Solar Designer
2011-09-03 11:18 ` Vasiliy Kulikov
2011-09-03 23:57 ` Solar Designer
2011-09-05 12:46 ` Vasiliy Kulikov
2011-09-06 5:05 ` Solar Designer
2011-09-07 9:09 ` Vasiliy Kulikov
2011-09-07 9:30 ` Solar Designer
2011-09-07 9:34 ` Vasiliy Kulikov
2011-09-07 9:43 ` Solar Designer
2011-09-07 9:55 ` Vasiliy Kulikov
2011-09-07 10:16 ` Solar Designer
2011-09-07 11:01 ` Vasiliy Kulikov
2011-09-02 23:34 ` Solar Designer
2011-09-03 12:12 ` Vasiliy Kulikov
2011-09-03 23:40 ` Solar Designer
2011-09-04 7:21 ` Vasiliy Kulikov
2011-08-12 23:19 ` [kernel-hardening] " H. Peter Anvin
2011-08-13 6:26 ` Vasiliy Kulikov
2011-08-16 9:05 ` Vasiliy Kulikov
2011-08-22 10:17 ` Vasiliy Kulikov
2011-08-22 17:24 ` H. Peter Anvin
2011-08-22 20:14 ` Vasiliy Kulikov
2011-08-22 20:17 ` H. Peter Anvin
2011-08-23 6:41 ` Vasiliy Kulikov
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