公开(公告)号：US20250036752A1

公开(公告)日：2025-01-30

申请号：US18713110

申请日：2022-10-20

Applicant: INSTITUTE OF COMPUTING TECHNOLOGY, CHINESE ACADEMY OF SCIENCES

Inventor： Zhe Wang ,  Chenggang Wu ,  Mengyao Xie

IPC: G06F21/54 ,  G06F21/55

Abstract: A CET mechanism-based method for protecting the integrity of a general-purpose memory. In the method, the integrity of the general-purpose memory is protected on the basis of a CET mechanism. A dedicated shadow stack page is provided, and is independent of the shadow stack page maintained by the CET mechanism itself, and overhead reduction processing adaptive to content to be written that is written to the dedicated shadow stack page and requires writing overhead reduction is performed on the content to be written, so as to reduce the number of times of using WRSS instructions, such that the integrity of sensitive data and/or sensitive codes is protected in the case of using lower overhead, and performance overhead of a processor in the protection of the integrity of the general-purpose memory is reduced, thereby improving the efficiency of processing other tasks by the processor.