Re: Running Qt-5.10 in docker requires "allow container_t container_runtime_t:fifo_file map;"

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On 01/19/2018 05:19 PM, Laurent Rineau wrote:
In an automated test process, I have a docker container based on
Fedora Rawhide, with Docker running on F27. That container runs a compilation
process involving Qt 5.10 (from rawhide).

That compilation fails, and I have the following AVC:

type=AVC msg=audit(1516334348.971:1059): avc:  denied  { map } for  pid=4046
comm="moc" path="pipe:[3343646]" dev="pipefs" ino=3343646
scontext=system_u:system_r:container_t:s0:c273,c916
tcontext=system_u:system_r:container_runtime_t:s0 tclass=fifo_file
permissive=0

When Rawhide had Qt 5.9.3, it was working (no AVC, and successul compilation
test).

What do you suggest? The tool audit2allow says that I would need that module:

     module qt5.10 1.0;
require {
             type container_runtime_t;
             type container_t;
             class fifo_file map;
     }
#============= container_t ==============
     allow container_t container_runtime_t:fifo_file map;


Is that permission dangerous? Why is it not in the policy?


Dan,

Could you look on it please?

Thanks.
Actually, I have no idea what mean mapping a fifo file. From why I know it
makes no sense.



--
Lukas Vrabec
Software Engineer, Security Technologies
Red Hat, Inc.
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