lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <2c0942db0612262113v5b504aecmdd922193415b60de@mail.gmail.com>
Date:	Tue, 26 Dec 2006 21:13:39 -0800
From:	"Ray Lee" <madrabbit@...il.com>
To:	"Rob Landley" <rob@...dley.net>
Cc:	linux-kernel@...r.kernel.org,
	"David McCullough" <david_mccullough@...securecomputing.com>
Subject: Re: Feature request: exec self for NOMMU.

On 12/26/06, Rob Landley <rob@...dley.net> wrote:
> I'm trying to make some nommu-friendly busybox-like tools, which means using
> vfork() instead of fork().  This means that after I fork I have to exec in
> the child to unblock the parent, and if I want to exec my current executable
> I have to find out where it lives so I can feed the path to exec().  This is
> nontrivial.
>
> Worse, it's not always possible.  If chroot() has happened since the program
> started, there may not _be_ a path to my current executable available from
> this process's current or root directories.

How about openning an fd to yourself at the beginning of execution, then calling
fexecve later?
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ