Messages in this thread | | | Date | Wed, 17 Jun 2015 15:20:44 +0200 | From | Paolo Bonzini <> | Subject | Re: [PATCH 3/5] vhost: support upto 509 memory regions |
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On 17/06/2015 15:13, Michael S. Tsirkin wrote: > > > Considering userspace can be malicious, I guess yes. > > I don't think it's a valid concern in this case, > > setting limit back from 509 to 64 will not help here in any way, > > userspace still can create as many vhost instances as it needs > > to consume memory it desires. > > Not really since vhost char device isn't world-accessible. > It's typically opened by a priveledged tool, the fd is > then passed to an unpriveledged userspace, or permissions dropped.
Then what's the concern anyway?
Paolo
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