Re: [PATCH] unalias of ACL_SELECT_FOR_UPDATE

Heikki Linnakangas wrote:
> KaiGai Kohei wrote:
>> However, ACL_UPDATE and ACL_SELECT_FOR_UPDATE internally shares same bit
>> so SE-PostgreSQL cannot discriminate between UPDATE and SELECT FOR UPDATE
>> or SHARE.
> 
> Why should it discriminate between them?

Typically, we cannot set up a foreign-key which refers a primary-key within
read-only table from SELinux's viewpoint.
The vanilla access control mechanism switches the current userid, and it enables
to run SELECT FOR SHARE without ACL_UPDATE, but SELinux's security model does not
have a concept of ownership.

Thanks,
-- 
KaiGai Kohei <kaigai@kaigai.gr.jp>