We've got Cargo wired up in our prototype, which can let you link modules against no_std crates on crates.io: https://github.com/fishinabarrel/linux-kernel-modu

We've got Cargo wired up in our prototype, which can let you link modules against no_std crates on crates.io: https://github.com/fishinabarrel/linux-kernel-module-rust https://github.com/fishinabarrel/linux-kernel-module-rust Probably one good end state is if the core kernel exposes appropriate safe abstractions, and vendors with out-of-tree modules (which tend to be worse at security than the main kernel) could use those APIs + things from crates.io to build their modules. But yes, figuring out how to use useful things that aren't in libcore is one of the open questions.