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RFC · LinuxStandard explained

RFC 9669: The eBPF instruction set as a standard

Summary

RFC 9669 documents the eBPF instruction set architecture independently of any single implementation. Formal documentation turns a kernel technology into a more portable platform. Safe extensibility needs verifiable limits.

Ideas

  • eBPF uses registers and a compact instruction set.
  • Verifiers stop unsafe programs before they run.
  • JIT compilers translate programs for the target architecture.

Remarks

  • RFC 9669 has the status “Proposed Standard”; current errata and successor documents should also be checked.

Recommendations

  • Limit eBPF privileges to the administrators and services that need them.
  • Test programs against several kernel and ISA versions.

References

Read the RFC at the RFC Editor

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