Apple Mac OSX Kernel - Null Pointer Dereference in IOAudioEngine

/ Source: https://bugs.chromium.org/p/project-zero/issues/detail?id=776 IOAudioEngineUserClient::closeClient sets the audioEngine member pointer to NULL IOReturn IOAudioEngineUserClient::closeClient audioDebugIOLog3, "+ IOAudioEngineUserClient%p::closeClient\n", this; if audioEngine && !isInactiv...