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Is it a feasible solution to enable hyperthreading only for threads or forks of the same process? Then they can use this ability, but other processes cannot do
by Aardwolf 8y ago
Is it a feasible solution to enable hyperthreading only for threads or forks of the same process? Then they can use this ability, but other processes cannot do timing attacks on this process in this core... I think
- Roritharr 8y agoI'm guessing someone at Amazon is looking at this right now.
- gruez 8y ago>Is it a feasible solution to enable hyperthreading only for threads or forks of the same process? how does that work on unix systems when processes are all forked from 1 process? even if you get past that issue, how do you prevent less privileged processes that use other security mechanisms (cgroups, pledge, selinux, croot, sandboxing)?
- tinus_hn 8y agoYou could allow processes that have ptrace rights on each other to run simultaneously which would cover most issues, but you’d still run into trouble with JavaScript engines running untrusted code.