public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Andi Kleen <ak@suse.de>
To: discuss@x86-64.org
Cc: Ingo Molnar <mingo@elte.hu>,
	torvalds@osdl.org, akpm@osdl.org, linux-kernel@vger.kernel.org,
	Chuck Ebbert <76306.1226@compuserve.com>
Subject: Re: [discuss] Re: [PATCH for 2.6.18-rc2] [2/8] i386/x86-64: Don't randomize stack top when no randomization personality is set II
Date: Sun, 16 Jul 2006 23:33:21 +0200	[thread overview]
Message-ID: <200607162333.21640.ak@suse.de> (raw)
In-Reply-To: <20060716211126.GA2880@elte.hu>


> yeah. There's one security issue: the 'dont randomize' flag must be
> cleared when we cross a protection domain. When for example suid-ing in
> exec().

Just checked. It should be already done because ADDR_NO_RANDOMIZE
is in PER_CLEAR_ON_SETID which is cleared in exec.

-Andi

      parent reply	other threads:[~2006-07-16 21:31 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-07-16 12:22 [PATCH for 2.6.18-rc2] [2/8] i386/x86-64: Don't randomize stack top when no randomization personality is set Andi Kleen
2006-07-16 20:47 ` Ingo Molnar
2006-07-16 21:14   ` Andi Kleen
2006-07-16 21:11     ` Ingo Molnar
2006-07-16 21:27       ` Andi Kleen
2006-07-16 21:33       ` Andi Kleen [this message]

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=200607162333.21640.ak@suse.de \
    --to=ak@suse.de \
    --cc=76306.1226@compuserve.com \
    --cc=akpm@osdl.org \
    --cc=discuss@x86-64.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    --cc=torvalds@osdl.org \
    /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