ORA-600 [kkfi.qbcvfr]

Issue: ORA-600 [kkfi.qbcvfr]

Environment:
RDBMS: 11.2.0.2
OS: Linux 5.5

Error in alert log:
ORA-600 [kkfi.qbcvfr]

Solution:
Patch 9965278

Possible solution (temporary):
alter system/session set "_replace_virtual_columns" = false;
alter system/session set "_disable_function_based_index"=true;
alter system/session set "_fix_control"="6754080:off";
alter system/session set "_fix_control"="8706652:off";