Any existing bug for the below symptoms?

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ORA-00600: internal error code, arguments: [qctVCO:csform], [0], [0], [0], [0], [112], [2], [224], [], [], [], []

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========= Dump for incident 26650 (ORA 600 [qctVCO:csform]) ========

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----- Beginning of Customized Incident Dump(s) -----

qctVCO:csform: dty=112 typ=2 flg=00120000 xfl=00000000 bfl=0 bfc=0 csfm=0 csid=0 csflg=0 collid=16382 cclvl=2 op=224 opc=1

qctVCO:csform:   dty=0 typ=1 flg=00020000 xfl=00000000 bfl=0

----- Current SQL Statement for this session (sql_id=arq7pb26kvmrn) -----

/* SQL Analyze(1257,0) */ select xmlagg(

   xmlelement("operation",

                         xmlattributes (operation as "name",

                              options as "options",

                              id as "id",

                              depth as "depth",

                              position as "pos"),

                         nvl2(object_name, xmlelement("object", object_name), NULL),

                         nvl2(cardinality, xmlelement("card", cardinality), NULL),