Re: Zenbleed

From: Jung-uk Kim <jkim_at_FreeBSD.org>
Date: Thu, 27 Jul 2023 17:49:44 UTC
On 23. 7. 27., mike tancsa wrote:
> On 7/27/2023 1:38 PM, Jung-uk Kim wrote:
>> I guess you checked out a wrong branch.  Please see the attached 
>> minimal patch I made for FreeBSD.  I think it will work on any 
>> supported FreeBSD branches.  Note the original exploit is available 
>> from here:
>>>
>>> https://lock.cmpxchg8b.com/files/zenbleed-v5.tar.gz
>>
>> With the forgotten attachment.
>>
>>
> Thanks!  A little farther on RELENG_12. I can compile on RELENG_13 ok. 
> With the patch do I still need to checkout Shawn's repo ? The patch 
> applies cleanly if I dont switch branches

--- >8 --- >8 ---

My patch is against HEAD, aka the original exploit for Linux.

https://lock.cmpxchg8b.com/files/zenbleed-v5.tar.gz
https://github.com/google/security-research/tree/master/pocs/cpus/zenbleed

Jung-uk Kim