From: David Mosberger <davidm@napali.hpl.hp.com>
To: trelane@digitasaru.net
Cc: linux-kernel@vger.kernel.org
Subject: Re: IA64/x86-64 and execution protection support?
Date: Mon, 3 Nov 2003 08:49:07 -0800 [thread overview]
Message-ID: <16294.34563.711608.728876@napali.hpl.hp.com> (raw)
In-Reply-To: <20031103144932.GC31953@digitasaru.net>
>>>>> On Mon, 3 Nov 2003 08:49:33 -0600, Joseph Pingenot <trelane@digitasaru.net> said:
Joseph> Hello. I was reading El Reg this morning when they
Joseph> discussed "execution protection" on the new Intel (IA64) and
Joseph> AMD (K8 and above) chips. Does the Linux kernel have
Joseph> support for preventing execution of certain memory regions
Joseph> on those architectures?
Yes, on ia64, data and stack do not get mapped executable by default.
Also, return addresses (under the discretion of the compiler) are
virtually always stored on a separate register stack, making it more
difficult to use memory stack overflows to overwrite return addresses.
--daviid
next prev parent reply other threads:[~2003-11-03 16:49 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-03 14:49 Joseph Pingenot
2003-11-03 16:49 ` David Mosberger [this message]
2003-11-03 20:21 ` Bryan O'Sullivan
[not found] <20031103144932.GC31953@digitasaru.net.suse.lists.linux.kernel>
2003-11-03 20:20 ` Andi Kleen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=16294.34563.711608.728876@napali.hpl.hp.com \
--to=davidm@napali.hpl.hp.com \
--cc=davidm@hpl.hp.com \
--cc=linux-kernel@vger.kernel.org \
--cc=trelane@digitasaru.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®