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CheriBSD: A memory safe POSIX OS

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 Davis, Brooks

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CheriBSD: A memory safe POSIX OS
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637
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CC Attribution 2.0 Belgium:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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CHERI is a portable architectural extension providing spatial, referential, and temporal memory safety along with strong, light-weight compartmentalization. CheriBSD is a port of FreeBSD supporting CHERI on Arm Morello, MIPS, and RISC-V. CheriBSD is the reference POSIX OS implementation for CHERI. CheriBSD supports unmodified binaries from the native architecture plus CheriABI programs which have strong spatial, referential, and temporal safety guarantees. I will discuss our implementation of CheriBSD with a focus on CheriABI.