linux-kernel - Re: [regression, bisected] x86: efi: Pass boot services variable info to runtime code

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]

Date:	Fri, 31 May 2013 13:40:37 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Russ Anderson <rja@....com>, joeyli <jlee@...e.com>,
	Matt Fleming <matt@...sole-pimps.org>,
	Matthew Garrett <matthew.garrett@...ula.com>,
	matt.fleming@...el.com, linux-efi@...r.kernel.org, x86@...nel.org,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...ux.intel.com>,
	Borislav Petkov <bp@...en8.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [regression, bisected] x86: efi: Pass boot services variable
 info to runtime code


* Jiri Kosina <jkosina@...e.cz> wrote:

> On Fri, 31 May 2013, Ingo Molnar wrote:
> 
> > > Unfortunately that means that you can as well throw the patch away 
> > > completely.
> > >
> > > The sole point is to run the QueryVariableInfo() from the boot 
> > > environment, in order to obtain more accurate information. And it's 
> > > a valid thing to do, according to UEFI specification.
> >
> > So this change needs to be reverted or fixed.
> 
> I don't think anyone is arguing against that.

The statement I replied to above can be fairly read as arguing against it.

Anyway, given that the fix (workaround) from Boris seems elaborate so late 
in the v3.10 cycle, does everyone else agree with a revert as well?

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/