linux-kernel - Re: nops in virtual pc 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>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <48CAF822.5030903@zytor.com>
Date:	Fri, 12 Sep 2008 16:15:46 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	linux@...dersweb.net
CC:	linux-kernel@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	the arch/x86 maintainers <x86@...nel.org>
Subject: Re: nops in virtual pc x86

David Sanders wrote:
> And even stranger, the same program won't run on the host OS because of data 
> execution prevention.

Not strange at all.  It means Virtual PC just doesn't handle the NX bit 
right.

> I reported the problem to Microsoft, they say they are aware of it and working 
> on a resolution.

Virtual Server 2007 fixed some of these issues (over VS 2005, which had 
the same problems.)

	-hpa
--
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/