From: Rich Felker <dalias@libc.org>
To: musl@lists.openwall.com
Subject: Re: [PATCH] fix atexit when it is called from an atexit handler
Date: Fri, 24 Jul 2015 12:01:48 -0400 [thread overview]
Message-ID: <20150724160148.GB16376@brightrain.aerifal.cx> (raw)
In-Reply-To: <1437720743.8534.9.camel@inria.fr>
On Fri, Jul 24, 2015 at 08:52:23AM +0200, Jens Gustedt wrote:
> > not an input dependent dos attack surface.
>
> I am not an expert in these, but AFAIR all function pointers that are
> stored in predictable places are attack surfaces.
This is a valid position, but I would distinguish interface-level
attack surfaces, in the form of interfaces that are processing
attacker-controlled data, from secondary attack surfaces that are only
accessible once you have already exploited a bug that yields undefined
behavior. These function pointers are the latter.
Rich
next prev parent reply other threads:[~2015-07-24 16:01 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-22 23:44 Szabolcs Nagy
2015-07-23 1:18 ` Rich Felker
2015-07-23 3:07 ` Szabolcs Nagy
2015-07-23 5:54 ` Jens Gustedt
2015-07-23 7:19 ` Jens Gustedt
2015-07-23 19:58 ` Rich Felker
2015-07-23 21:51 ` Jens Gustedt
2015-07-24 0:16 ` Szabolcs Nagy
2015-07-24 6:52 ` Jens Gustedt
2015-07-24 10:53 ` Szabolcs Nagy
2015-07-24 16:01 ` Rich Felker [this message]
2015-07-24 21:25 ` Rich Felker
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=20150724160148.GB16376@brightrain.aerifal.cx \
--to=dalias@libc.org \
--cc=musl@lists.openwall.com \
/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.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/musl/
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).