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From: Thorsten Glaser <t.glaser@tarent.de>
To: musl@lists.openwall.com
Subject: Re: Removing sbrk and brk
Date: Fri, 3 Jan 2014 11:51:32 +0000 (UTC)	[thread overview]
Message-ID: <loom.20140103T124809-643@post.gmane.org> (raw)
In-Reply-To: <20140102220302.GR24286@brightrain.aerifal.cx>

Rich Felker <dalias <at> aerifal.cx> writes:

> sbrk may be re-added sometime after 1.0 if malloc is changed to no
> longer use the brk (option 5 above).

You may want to import omalloc (based on mmap malloc, written from
scratch by Otto Moerbeek) with lots of security features:

http://www.openbsd.org/cgi-bin/cvsweb/src/lib/libc/stdlib/malloc.c
http://www.openbsd.org/cgi-bin/man.cgi?query=malloc

It does assume that mmap() is randomised and NULs the result.

bye,
//mirabilos



  reply	other threads:[~2014-01-03 11:51 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-12-21 23:40 Rich Felker
2013-12-22  2:15 ` Luca Barbato
2013-12-22 17:58   ` Richard Pennington
2013-12-22 18:21     ` Luca Barbato
2013-12-22 18:48 ` Szabolcs Nagy
2013-12-22 21:55   ` Christian Neukirchen
2013-12-23  4:46   ` Rich Felker
2014-01-02 22:03     ` Rich Felker
2014-01-03 11:51       ` Thorsten Glaser [this message]
2014-01-03 12:59         ` Daniel Cegiełka
2014-01-03 17:33         ` Rich Felker
2014-01-03 18:19           ` Rich Felker
2014-01-03 19:03             ` Rich Felker
2014-01-06 14:51               ` Thorsten Glaser
2014-01-06 22:40                 ` Rich Felker
2014-01-07  9:43                   ` Thorsten Glaser
2014-01-07 16:06                     ` Rich Felker
2014-01-07 22:00                       ` Rich Felker
2014-02-21 16:03                         ` Daniel Cegiełka
2014-02-21 16:36                           ` Szabolcs Nagy
2014-02-21 16:47                             ` Daniel Cegiełka
2014-02-21 17:09                               ` Rich Felker
2014-02-21 22:34                                 ` Daniel Cegiełka

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