How to grant on v$ views

If you face with an error when try to give permission on a v$view
SQL> grant select on v$session to hr;
grant select on v$session to hr
*
ERROR at line 1:
ORA-02030: can only select from fixed tables/views

the problem is caused because of trying to give select privilage on a synonym. Oracle v$ views are named V_$VIEWNAME and they have synonyms in format V$VIEWNAME and you can’t give privilage on a synonym.
If you want to give permission to a V$ view you must give it like below
SQL> grant select on v_$session to hr;
Grant succeeded.