Apple Mac OSX - Kernel Use-After-Free Due to Bad Locking in IOAcceleratorFamily2

Exploit for macOS platform in category dos / poc / Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=772 In IOAccelContext2::clientMemoryForType the lockbusy/unlockbusy should be extended to cover all the code setting up shared memory type 2. At the moment the lock doesn't protect...