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    Kernel integrity protection method and apparatus
    1.
    发明授权
    Kernel integrity protection method and apparatus 有权

    公开(公告)号：US12032494B2

    公开(公告)日：2024-07-09

    申请号：US16965935

    申请日：2018-11-26

    Applicant: HUAWEI TECHNOLOGIES CO., LTD.

    Inventor： Fuzhou Xiao ,  Youzhan Yin ,  Dengzhou Xia

    IPC: G06F12/14 ,  G06F21/53 ,  G06F21/71

    CPC classification number: G06F12/1491 ,  G06F12/1416 ,  G06F21/53 ,  G06F21/71 ,  G06F2212/1052

    Abstract: Embodiments of the present disclosure relate to kernel integrity protection methods and apparatuses. In an embodiment, a method includes: sending, by a first program executing at a first exception level, a request message to a second program executing at a second exception level, wherein the first exception level has lower execution privilege than the second exception level, the request message requests to perform memory access, and wherein the memory access is a preset register access or a preset memory space access, and; in response to receiving the request message, obtaining, by the second program, event information corresponding to the memory access; sending, by the second program, the event information to the first program; and processing, by the first program, the event information.

    Method for updating selinux security policy and terminal
    2.
    发明授权
    Method for updating selinux security policy and terminal 有权

    公开(公告)号：US11222118B2

    公开(公告)日：2022-01-11

    申请号：US16758619

    申请日：2017-10-30

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Dengzhou Xia ,  Fuzhou Xiao ,  Li Chen

    IPC: H04L9/00 ,  G06F21/57

    Abstract: A method for updating a SELinux security policy and a terminal. The method includes receiving, by the terminal, a security policy file sent by a server. The method further includes, performing, by the terminal in a power-on status, storing the security policy file in preset storage space by using a first service or process, modifying, by the terminal, a value of a preset attribute value from a first value to a second value by using the first service or process, reading, when it is detected that the value of the preset attribute value is changed from the first value to the second value, the security policy file from the preset storage space by using a second service or process and writing the security policy file into a memory, and loading, by the terminal, the security policy file in the memory by using the second service or process.

    Method for Updating Selinux Security Policy and Terminal
    5.
    发明申请
    Method for Updating Selinux Security Policy and Terminal 审中-公开

    公开(公告)号：US20200380133A1

    公开(公告)日：2020-12-03

    申请号：US16758619

    申请日：2017-10-30

    Applicant: Huawei Technologies Co., Ltd.

    Inventor： Dengzhou Xia ,  Fuzhou Xiao ,  Li Chen

    IPC: G06F21/57

    Abstract: A method for updating a SELinux security policy and a terminal. The method includes receiving, by the terminal, a security policy file sent by a server. The method further includes, performing, by the terminal in a power-on status, storing the security policy file in preset storage space by using a first service or process, modifying, by the terminal, a value of a preset attribute value from a first value to a second value by using the first service or process, reading, when it is detected that the value of the preset attribute value is changed from the first value to the second value, the security policy file from the preset storage space by using a second service or process and writing the security policy file into a memory, and loading, by the terminal, the security policy file in the memory by using the second service or process.

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