Invention Grant
- Patent Title: Method and apparatus for enhancing isolation of user space from kernel space
-
Application No.: US17038613Application Date: 2020-09-30
-
Publication No.: US11436155B2Publication Date: 2022-09-06
- Inventor: Yubin Xia , Zhichao Hua , Zhengde Zhai
- Applicant: Huawei Technologies Co., Ltd.
- Applicant Address: CN Shenzhen
- Assignee: Huawei Technologies Co., Ltd.
- Current Assignee: Huawei Technologies Co., Ltd.
- Current Assignee Address: CN Shenzhen
- Agency: Conley Rose, P.C.
- Main IPC: G06F12/00
- IPC: G06F12/00 ; G06F12/1009 ; G06F9/455 ; G06F12/0808 ; G06F12/0811 ; G06F12/0873
Abstract:
A method and an apparatus for enhancing isolation of user space from kernel space, to divide an extended page table into a kernel-mode extended page table and a user-mode extended page table, such that user-mode code cannot access some or all content in the kernel space, and/or kernel-mode code cannot access some content in the user space, thereby enhancing isolation of the user space from the kernel space and preventing content leakage of the kernel space.
Public/Granted literature
- US20210011856A1 Method and Apparatus for Enhancing Isolation of User Space from Kernel Space Public/Granted day:2021-01-14
Information query
