Messages in this thread | | | Date | Fri, 1 Feb 2019 10:11:52 +0100 | From | Michal Hocko <> | Subject | Re: [PATCH 3/3] mm/mincore: provide mapped status when cached status is not allowed |
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On Fri 01-02-19 10:04:23, Vlastimil Babka wrote: > The side channel exists anyway as long as process can e.g. check if > its rss shrinked, and I doubt we are going to remove that possibility.
Well, but rss update will not tell you that the page has been faulted in which is the most interesting part. You shouldn't be able to sniff on /proc/$vicimt/smaps as an attacker. -- Michal Hocko SUSE Labs
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