linux-kernel - Re: [Fastboot] [CFT] ELF Relocatable x86 and x86

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>] [day] [month] [year] [list]

Message-Id: <E1GAnMi-0000iG-DH@be1.lrz>
Date:	Wed, 09 Aug 2006 14:40:31 +0200
From:	Bodo Eggert <7eggert@...tempel.de>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Don Zickus <dzickus@...hat.com>, fastboot@...l.org,
	Horms <horms@...ge.net.au>,
	Jan Kratochvil <lace@...kratochvil.net>,
	"H. Peter Anvin" <hpa@...or.com>,
	Magnus Damm <magnus.damm@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [Fastboot] [CFT] ELF Relocatable x86 and x86_64 bzImages

Eric W. Biederman <ebiederm@...ssion.com> wrote:

> Odd.  I wonder if I'm missing a serializing instruction somewhere,
> to ensure the effects of ``self modifying code'' aren't a problem.
> As I read Intels Documentation if you have a jump before you get
> to the code there shouldn't be a problem.

ACK, a short jump to the next instruction *should* be all it takes, but if
it doesn't, maybe a long jump will do the trick.
-- 
Ich danke GMX dafür, die Verwendung meiner Adressen mittels per SPF
verbreiteten Lügen zu sabotieren.

http://david.woodhou.se/why-not-spf.html
-
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/