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Vancouver, BC, Canada
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Thursday, August 30 • 11:50am - 12:30pm
Does Making the Kernel Harder Make Making the Kernel Harder? - Casey Schaufler, Intel

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The Linux Kernel Hardening Project is making significant strides in reducing vulnerabilities and in increasing the effort required to exploit vulnerabilities that remain. Much of what has been implemented is obviously valuable, but sometimes the benefit is more subtle. How does the introduction of refcount_t make the kernel more secure, and by how much? What value is there in removing variable length arrays? Casey Schaufler, a (really) long time kernel developer will explain why some of these changes provide significantly greater value than might be apparent to the casual observer. He will discuss the cost of kernel hardening in terms of development overhead, code churn and performance.

Speakers
avatar for Casey Schaufler

Casey Schaufler

Engineer, Intel
Casey Schaufler worked on Unix kernels in the 1970s-90s. He has implemented access control lists, mandatory access control, extended filesystem attributes, X11 access controls, network protocols and more audit systems than is really healthy. His involvement in Linux began with the... Read More →


Thursday August 30, 2018 11:50am - 12:30pm
Room 110