The Insecurity Industry

• notes

  9 22 0.0

  Notes, Questions, Ideas (by void4)

Not if done correctly. Have a look at this link: https://github.com/void4/notes/issues/41

There is no issue with just limiting resources (unless there is unpredictable overhead). It doesn't have to be hardware resources either, it could be abstract/higher level resources like interpreter steps or managed memory slices.

I'm creating a series of VMs to show that this is possible, like rarVM, the recursively sandboxable virtual machine: https://esolangs.org/wiki/RarVM

Showcase: https://www.youtube.com/watch?v=MBymOp6bTII

When calling a function you can specify how many interpreter steps it can run until it aborts (and optionally gives you a continuation so you can "refill" and resume it later).

Stackless Python can do this too, but unfortunately due to the reasons discussed above will never be a safe language, this specific mechanism works only in trusted environments since the called function has the ambient authority to increase its own resource limits: https://stackless.readthedocs.io/en/2.7-slp/library/stackles...

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