APPARATUS AND METHOD FOR CONTROLLING INSTRUCTION EXECUTION TO PREVENT ILLEGAL ACCESSES TO A COMPUTER

摘要

An apparatus stores first instructions including a call instruction and second instructions including a return instruction. When executing the second instructions called by the call instruction from the first instructions, the apparatus determines whether an instruction at a return address for return to the first instructions caused by the return instruction of the second instructions includes identification information. The apparatus continues processing of the first instructions when the instruction at the return address includes the identification information, and stops execution of the first instructions when the instruction at the return address does not include the identification information.

主权项

1. An instruction execution control device comprising:
a memory configured to store first instructions including a call instruction and second instructions including a return instruction; and a processor configured:
to, when executing the second instructions called by the call instruction from the first instructions, determine whether an instruction at a return address for return to the first instructions caused by the return instruction of the second instructions includes identification information, andto continue processing of the first instructions when the instruction at the return address includes the identification information, and stop execution of instructions when the instruction at the return address does not include the identification information.