Re: [PATCH 1/1] Ddrivers: hv: Turn off write permission on the hypercall page

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On Wed, Feb 08, 2017 at 06:30:56PM -0700, kys@xxxxxxxxxxxxxxxxxxxxxx wrote:
> From: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> 
> The hypercall page only needs to be executable but currently it is setup to
> be writable as well. Fix the issue.
> 
> Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx>

What type of bug is this fixing that it is needed to be backported?
Does this affect any current users?  How far back should it go?

thanks,

greg k-h
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