CVE-2012-0217 Intel's sysret Kernel Privilege Escalation and FreeBSD 6.2/6.3

John Baldwin jhb at freebsd.org
Tue Jul 31 14:56:53 UTC 2012


On Wednesday, July 18, 2012 4:59:21 pm James wrote:
> On Wed, Jul 18, 2012 at 3:26 PM, Bill Crisp <bcrisp at crispernetworks.com> 
wrote:
> >
> > Unfortunately I tried to put the code from the patch in place but there
> > seems to be some missing functions in the header file and too many
> > arguments to a function and some other errors below:
> 
>     Hi Bill. Yes, the patch for >= FreeBSD 7 won't apply directly to
>     6. ksi and the refined SIGBUS traps don't exist yet. Here's how I
>     fixed it at work. Using this on multiple releng_6* branches.
> 
>     HTH!

This looks correct.  A cosmetic nit would be to move the new changes up above 
the "Traced system call" comment.

-- 
John Baldwin


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