IndexTable->Length is used as index in array IndexTable->Index[]. So IndexTable->Length needs to be checked, which should be less than the array size. Cc: Hao A Wu <hao.a.wu@intel.com> Cc: Liming Gao <liming.gao@intel.com> Signed-off-by: Shenglei Zhang <shenglei.zhang@intel.com> Reviewed-by: Hao A Wu <hao.a.wu@intel.com>