Re: [PATCH v2] cpu: do not leak vulnerabilities to unprivileged users

From: Alan Cox
Date: Fri Jan 26 2018 - 11:43:30 EST


On Fri, 26 Jan 2018 13:31:58 +0100
"Jason A. Donenfeld" <Jason@xxxxxxxxx> wrote:

> While it's public information if the CPU in general has spectre/meltdown
> bugs, it probably shouldn't be as globally obvious to all unprivileged
> users

As I replied to you last time you posted this

a) The info is already trivially accessible via /proc/cpuinfo or by
measurement to an attacker
b) Some JIT and other environments need to know

Alan