linux-kernel - Re: [PATCH] x86, AMD: Correct F15h IC aliasing issue

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: <20110725200645.GC8302@elte.hu>
Date:	Mon, 25 Jul 2011 22:06:45 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Borislav Petkov <bp@...64.org>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	"Przywara, Andre" <Andre.Przywara@....com>,
	"Pohlack, Martin" <Martin.Pohlack@....com>
Subject: Re: [PATCH] x86, AMD: Correct F15h IC aliasing issue


* Borislav Petkov <bp@...64.org> wrote:

> So yeah, the simpler fix works for processes mapping libraries in 
> the same order but not for processes mapping a subset of libraries 
> in a different order.

but what is the proportion of 'good' versus bad alignment of 
libraries, could you collect some stats on a representative enough, 
fully booted up Linux system?

Are only 1% of mappings 'bad'? 5%? 10%? 50%? We have no idea and the 
actual number matters a lot.

Thanks,

	Ingo
--
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/