Explore macOS kernel fuzzing techniques in this 41-minute conference talk from 44CON 2017. Dive into MWR's platform-agnostic approach for identifying critical flaws in Apple's XNU kernel. Learn about developing fuzzing automation, targeting core subsystems, and addressing architectural differences across platforms. Examine the effectiveness of targeted fuzzing for specific components and discover an in-memory fuzzer combining static and dynamic analysis. Gain insights into achieving greater code coverage, efficiency, and attacking privileged components via IPC. Discuss discovered issues, future improvements, and tools released for enhancing coverage and effectiveness in macOS kernel fuzzing.