SYSTEMS AND METHODS OF PROCEDURE RETURN ADDRESS CHECKING Russian patent published in 2017 - IPC G06F21/55 G06F9/42 

FIELD: information technology.

SUBSTANCE: device contains a stack pointer to indicate the first return address stored in the stack; a return address buffer pointer to indicate the second return address stored in the return address buffer; and a return address verification logic device for comparing the first return address with the second return address in response to receiving the return and execute command, in response to receiving the return address buffer command, at least one of: storing the return address in the return address buffer or return address deleting from the buffer, and the return address buffer modification command is a privileged command.

EFFECT: preventing unauthorized modification of the stack.

17 cl, 12 dwg