ORA-00600 error while applying patch 16503282

Hi Team,

Getting following error while applying patch 16503282

occurred while executing the SQL statement:

SELECT count(*)
FROM fnd_install_processes
WHERE status = 'W'
AND worker_id > 0
AutoPatch error:
The following ORACLE error:

ORA-00600: internal error code, arguments: [kcbo_unlink_q_1], [], [], [], [], [], [], [], [], [], [], []

occurred while executing the SQL statement:

SELECT   control_code, status
FROM     fnd_install_processes
ORDER BY worker_id

AutoPatch error:
adfrjp(): Error running jobs in workers

Telling workers to quit...

AutoPatch error:
The following ORACLE error:

ORA-01013: user requested cancel of current operation

occurred while executing the SQL statement:

SET control_code = 'Q'
WHERE worker_id > 0
AND control_code <> 'A'