Re: [PATCH v6] x86/resctrl: Fix task CLOSID/RMID update race

[Peter Newman]

On Fri, Dec 16, 2022 at 2:31 PM Peter Newman <peternewman@xxxxxxxxxx> wrote:
> In a memory bandwidth-metered compute host, malicious jobs could exploit
> this race to remain in a previous CLOSID or RMID in order to dodge a
> class-of-service downgrade imposed by an admin or to steal bandwidth.

After discussing with Reinette some more[1], I think the payoff of
exploiting this is too little for this to concern me, so I'll remove
the paragraph above.

[1] https://lore.kernel.org/lkml/CALPaoCi8hcFzNN9O9fS9Etri_KMdU32UU1tJsfeO1OxR-i1j7g@xxxxxxxxxxxxxx/

Consequently I don't think this fix is critical enough to be needed on
stable, so I'll drop the CC: stable from the update.