Re: [PATCH 1/2] kvm tools: Export DISPLAY ENV as our default host ip address

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On Tue, Sep 4, 2012 at 9:07 PM, Avi Kivity <avi@xxxxxxxxxx> wrote:
> On 08/24/2012 02:29 PM, Asias He wrote:
>> It is useful to run a X program in guest and display it on host.
>>
>> 1) Make host's x server listen to localhost:6000
>>    host_shell$ socat -d -d TCP-LISTEN:6000,fork,bind=localhost \
>>                UNIX-CONNECT:/tmp/.X11-unix/X0
>>
>> 2) Start the guest and run X program
>>    host_shell$ lkvm run -k /boot/bzImage
>>   guest_shell$ xlogo
>>
>
> Note, this is insecure, don't do this with untrusted guests.

In this use case, the user on the host side should trust the guest.

Btw, any attack the untrusted guests can do with the X port which host listens?

-- 
Asias He
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