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PreFence

This repository contains the code artifact for the paper "A Scheduling-Aware Defense Against Prefetching-Based Side-Channel Attacks", to appear on arXiv as preprint.

It comprises the following components:

  • kernel_patch/: A patch for the Linux kernel (v6.6.14). It extends the prctl system call to expose the prefetch_disable flag of a process to userspace and updates the scheduler to implement our countermeasure on Intel x86_64 CPUs.
  • evaluation/: A collection of small test programs and scripts that we used to evaluate PreFence (as presented in Section 6 of the paper).