ORA-600 with rowdependencies on sorted hash cluster

Hello, I've got ORA-600 for this test case (on 10.2.0.4, 10.2.0.1, 11.1.0.6):

drop table test_shc purge;
drop cluster shc;

create cluster shc (app varchar2(30), created timestamp(9) sort)
single table
size 2695
hashkeys 101
rowdependencies;
 
create table test_shc(app varchar2(30) not null,
                  created timestamp(9) sort not null,
                  message varchar2(4000))
cluster shc(app, created);

insert into test_shc(app, created, message) values ('aaa', systimestamp, 'something');

When size < 2695 or cluster is defined without rowdependencies there is no ORA-600..

I know I should create a SR, but I can't and I don't need the solution..
Is there another way how to report bug (except SR)? Is Oracle interested only in bugs from SR?