Beschränkung Indirekter Kontrollflussübertragungen auf der Basis der Kompatibilität der Anweisungszeiger des Indirekten Kontrollflusstransferbefehls und des Zielbefehls

Details

Veröffentlichungs-Nr.

EP4749435

Anmeldetag

21. Oktober 2025

Veröffentlichung

27. Mai 2026

Rechtsraum

EP

IPC

G06F9/30, G06F9/32

Abstract

A processor of an aspect includes a decode unit to decode an indirect control flow transfer instruction, the instruction to indicate a register that is to store information to indicate an instruction pointer of a target instruction. An execution unit is to perform operations corresponding to the instruction, including to determine whether at least a first set of bits of an instruction pointer of the indirect control flow transfer instruction are compatible with at least a second set of bits of the instruction pointer of the target instruction. The operations also include to either store the instruction pointer of the target instruction in an instruction pointer storage if the first and second sets of bits are determined to be compatible, or to not store the instruction pointer of the target instruction in the instruction pointer storage if the first and second sets of bits are determined to not be compatible.

Anmelder

Firma

INTEL Corporation

Land

🇺🇸 USA