Apple macOS 10.12.1 Kernel - Writable Privileged IOKit Registry Properties Code Execution

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=974 There are two ways for IOServices to define their IOUserClient classes: they can override IOService::newUserClient and allocate the correct type themselves or they can set the IOUserClientClass key in their registry entry. Th...