Re: [PATCH v27 24/31] x86/cet/shstk: Handle thread shadow stack

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On Wed, Jul 21, 2021 at 11:34:53AM -0700, Yu, Yu-cheng wrote:
> On 7/21/2021 11:28 AM, Florian Weimer wrote:
> > I expect that container runtimes turn clone3 into clone in the same way
> > (via ENOSYS), at least for the medium term.  So it would make sense to
> > allocate some sort of shadow stack for clone as well, if that's possible
> > to implement in some way.
> > 
> > Thanks,
> > Florian
> > 
> 
> Thanks Florian!  And because of that reason, we will put back clone2 support
> in my next v28 patches.
> 
> Yu-cheng

I tested with v28 of the patches on the same system and it appears to
fix the issue I was seeing.

Thanks,
John




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