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Add Z-Jail – Linux sandbox with seccomp-BPF and zero dependencies#219

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Add Z-Jail – Linux sandbox with seccomp-BPF and zero dependencies#219
Zierax wants to merge 1 commit into
Hack-with-Github:masterfrom
Zierax:master

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@Zierax

@Zierax Zierax commented Jun 6, 2026

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What I'm adding

Z-Jail is a lightweight Linux sandbox written in C99.

  • 7 independent defense layers: setrlimit, fd scrub, pivot_root,
    PR_SET_NO_NEW_PRIVS, capability drop, seccomp-BPF whitelist (15 syscalls)
  • ~130 KiB binary, zero external dependencies
  • Built-in audit log with BLAKE2b-256 content hashing
  • Single make build

Fits under the existing pattern for sandboxing/isolation tools
relevant to CTF and CI/CD security.

Repo: https://github.com/Division-36/Z-Jail

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