Datenverarbeitungsvorrichtung mit einer Widerrufeinheit für Zeitliche Speichersicherheit

Details

Veröffentlichungs-Nr.

EP4752733

Anmeldetag

29. November 2024

Veröffentlichung

3. Juni 2026

Rechtsraum

EP

IPC

G06F12/02

Abstract

Each memory location of a main memory (140) is associated with a respective tag bit indicating whether a respective value stored at the respective memory location is a pointer. A revocation entity (135) invalidates one or more pointers referring to one or more deallocated objects in the main memory. The revocation entity is arranged between a memory interconnect (130) and the main memory, and implements a revocation operation, comprising loading a value from a current memory location of the main memory, and overwriting the tag bit associated with the current memory location of the main memory, if the loaded value is a pointer referring to a deallocated object. The revocation entity detects store operations of a main processor (120) to the main memory and aborts the revocation operation, if during the revocation operation a store operation to the current memory location of the main memory is detected.

Anmelder

Firma

SCI Semiconductor Limited

Land

🇬🇧 Großbritannien

Fachgebiete