Re: WTF: patch "[PATCH] arm/arm64: KVM: Add PSCI version selection API" was seriously submitted to be applied to the 4.16-stable tree?

[Greg KH <gregkh@linuxfoundation.org>]

On Mon, Apr 30, 2018 at 04:37:48PM +0200, Christoffer Dall wrote:
> On Sun, Apr 29, 2018 at 02:34:45PM +0200, gregkh@linuxfoundation.org wrote:
> > The patch below was submitted to be applied to the 4.16-stable tree.
> > 
> > I fail to see how this patch meets the stable kernel rules as found at
> > Documentation/process/stable-kernel-rules.rst.
> > 
> > I could be totally wrong, and if so, please respond to 
> > <stable@vger.kernel.org> and let me know why this patch should be
> > applied.  Otherwise, it is now dropped from my patch queues, never to be
> > seen again.
> 
> This patch ensures that current userspace drivers of KVM VMs will fail
> migration to targets that do not support spectre/meltdown mitigations.
> Without this patch, VMs can be migrated to hosts that do not have
> mitigation support without any warning to the system admin.  We
> considered this a real security issue as per the stable kernel rules.

Well, maybe you should have put this in the changelog itself, as it is,
the information there contained none of this and so it looked like a new
feature being added for some unknown reason.

Please be more obvious as to what is going on if you want me to
automatically pull patches into the stable trees.

If you don't want to be obvious (which can happen), just email me and/or
security@kernel.org and that will be fine as well.

thanks,

greg k-h