Re: [Xen-devel] [PATCH] xenstored: allow guests to reintroduce themselves

[Olaf Hering <olaf@xxxxxxxxx>]

On Tue, Aug 09, Vincent Hanquez wrote:

> What about security wise ?

Its not about security, just the usual UNIX gun->foot thing.

> Guest userspace suddenly becomes able to do this operation (and DoS themself)
> where they used to be limited to normal read/write/.. operations.

The guest userspace does most likely not talk to xenstored directly.
Whatever acts as the proxy could filter the XS_INTRODUCE command.

> Also you're changing the C xenstored behavior without changing
> the OCaml one.

I better leave that to the maintainers of that code.

Olaf

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