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    • 2. 发明申请
    • Software memory access control
    • 软件内存访问控制
    • US20060174077A1
    • 2006-08-03
    • US11036801
    • 2005-01-14
    • Martin AbadiUlfar ErlingssonJay LigattiMihai-Dan Budiu
    • Martin AbadiUlfar ErlingssonJay LigattiMihai-Dan Budiu
    • G06F12/14
    • G06F12/1458
    • Software memory access control is provided by associating instruction areas with memory areas such that instruction areas are not permitted to access memory areas with which they are not associated. Checks may be inserted in the instruction areas to ensure that data provided by a memory group is provided by an associated memory area. Additionally, control flow integrity for the instruction areas may be provided by embedding identifying bit patterns within computed control flow instructions contained in the instruction groups. In this way, control flow of the instruction areas may be provided, thus preventing diversion of control flow and minimizing required checks.
    • 通过将指令区域与存储区域相关联来提供软件存储器访问控制,使得指令区域不被允许访问与它们不相关联的存储器区域。 可以在指令区域中插入检查,以确保由存储器组提供的数据由相关联的存储器区域提供。 此外,可以通过在包含在指令组中的计算的控制流指令内嵌入识别位模式来提供指令区域的控制流完整性。 以这种方式,可以提供指令区域的控制流程,从而防止控制流的转移并使所需的检查最小化。