Re: [PATCH v2] misc: fastrpc: restrict user apps from sending kernel RPC messages

On Fri, Feb 12, 2021 at 10:26:58PM +0300, Dmitry Baryshkov wrote:

Verify that user applications are not using the kernel RPC message handle to restrict them from directly attaching to guest OS on the remote subsystem. This is a port of CVE-2019-2308 fix.

A port of the fix of what to what?

Is this to go only into a stable tree (if so what ones and what is the id in Linus's tree), or is it to go into Linus's tree like normal (if so how can this be a port)?

thanks,

greg k-h