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Message-Id: <20160310212302.de4ec2003f3ef8cafc05c66d@asm32.info>
Date: Thu, 10 Mar 2016 21:23:02 +0200
From: John Found <johnfound@...32.info>
To: musl@...ts.openwall.com
Subject: Re: Memory management, how to protect some address space.
On Thu, 10 Mar 2016 14:11:03 -0500
Rich Felker <dalias@...c.org> wrote:
> The proper way to use personality() is before exec'ing your program.
> The stack address and some spare memory that musl re-uses as heap get
> assigned at exec time before you can do anything within your program
> to prevent that from happening. In theory that could happen with glibc
> too; if it doesn't you're just getting lucky.
>
> Rich
Hm, isn't it paragraph 22? sys_personality changes the personality of the calling process.
How to call it *before* executing program???
--
http://fresh.flatassembler.net
http://asm32.info
John Found <johnfound@...32.info>
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