lkml.org 
[lkml]   [2002]   [Apr]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH] Re: SSE related security hole


On Fri, 19 Apr 2002, H. Peter Anvin wrote:
>
> Indeed. Logically, FNINIT should have been extended to initialize it all -
> - it is a security hole that it doesn't initialize MMX properly.

Well, MMX should arguably be initialized with "emms", so the proper
sequence migth be something like

if (sse)
asm("emms");
asm("fninit");
What does emms do to SSE2?

Linus

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:25    [from the cache]
©2003-2011 Jasper Spaans