FALSE CODE PREVENTION METHOD AND PREVENTION PROGRAM

摘要

A method for preventing a return address from being altered due to buffer overflow during program execution. When a return address is re-written during program execution, the debug function of the central processing unit is used to output an error. When the error is output and the alteration of the return address is detected, the altered return address is re-written with a value stored in advance to enable the program to return to normal operation.