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Explore kernel hardening techniques in this 29-minute Linux Foundation conference talk. Learn about features implemented in the mainline Linux kernel to mitigate the impact of unknown bugs and reduce the attack surface. Discover the benefits and trade-offs of various hardening measures, including Debug, RoData, Stack Smashing Protection, User Memory Segregation, and Kernel Address Sanitizer. Gain insights from ARM kernel developer Mark Rutland on how these features can help protect systems against exploitation, even when vulnerabilities remain unfixed or undiscovered. Understand the limitations of these approaches and their role in enhancing overall kernel security.
