linux-kernel - Re: [PATCH v4 09/10] x86/xsaves: Fix xstate_offsets, xstate

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, 29 Apr 2016 15:07:29 -0700
From:	Yu-cheng Yu <yu-cheng.yu@...el.com>
To:	Dave Hansen <dave.hansen@...ux.intel.com>
Cc:	x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org,
	Andy Lutomirski <luto@...nel.org>,
	Borislav Petkov <bp@...e.de>,
	Sai Praneeth Prakhya <sai.praneeth.prakhya@...el.com>,
	"Ravi V. Shankar" <ravi.v.shankar@...el.com>,
	Fenghua Yu <fenghua.yu@...el.com>
Subject: Re: [PATCH v4 09/10] x86/xsaves: Fix xstate_offsets, xstate_sizes
 for legacy components

On Fri, Apr 29, 2016 at 01:28:31PM -0700, Dave Hansen wrote:
> On 03/04/2016 10:12 AM, Yu-cheng Yu wrote:
> > The arrays xstate_offsets[] and xstate_sizes[] record XSAVE area 
> > offsets and sizes. Values for legacy components i387 and XMMs were
> > not initialized. Fix it.
> 
> Is this just a completeness thing or does it actually break something?

PTRACE format conversion needs them.