11th module. net/sched cls_route4 handle-zero dead UAF — discovered
by kylebot Aug 2022, fixed mainline 5.20 (commit 9efd23297cca).
Bug existed since 2.6.39 → very wide attack surface.
- modules/cls_route4_cve_2022_2588/iamroot_modules.{c,h}:
- kernel_range thresholds: 5.4.213 / 5.10.143 / 5.15.69 / 5.18.18 /
5.19.7 / mainline 5.20+
- can_unshare_userns() probes user_ns+net_ns clone availability
(the exploit's CAP_NET_ADMIN-in-userns gate)
- cls_route4_module_available() checks /proc/modules
- Reports VULNERABLE if kernel in range AND user_ns allowed;
PRECOND_FAIL if user_ns denied; OK if patched.
- Exploit stub returns IAMROOT_PRECOND_FAIL with reference to
kylebot's public PoC.
- Auditd rule: tc-style sendto syscalls (rough; legit traffic
shaping will trip — tune by user).
iamroot.c + Makefile + core/registry.h wired. CVES.md row added.
Verified on kctf-mgr (6.12.86): module reports OK, total module
count = 11.
IAMROOT
A curated, actively-maintained corpus of Linux kernel LPE exploits — bundled with their detection signatures, patch status, and version ranges. Run it on a system you own (or are authorized to test) and it tells you which historical and recent CVEs that system is still vulnerable to, and — with explicit confirmation — gets you root.
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██║██╔══██║██║╚██╔╝██║██╔══██╗██║ ██║██║ ██║ ██║
██║██║ ██║██║ ╚═╝ ██║██║ ██║╚██████╔╝╚██████╔╝ ██║
╚═╝╚═╝ ╚═╝╚═╝ ╚═╝╚═╝ ╚═╝ ╚═════╝ ╚═════╝ ╚═╝
⚠️ Authorized testing only. IAMROOT is a research and red-team tool. By using it you assert you have explicit authorization to test the target system. See
docs/ETHICS.md.
What this is
Most Linux LPE references are dead repos, broken PoCs, or single-CVE deep-dives. IAMROOT is a living corpus: each CVE that lands here is empirically verified to work on the kernels it claims to target, CI-tested across a distro matrix, and ships with the detection signatures defenders need to spot it in their environment.
The same binary covers offense and defense:
iamroot --scan— fingerprint the host, report which bundled CVEs apply, and which are blocked by patches/config/LSMiamroot --exploit <CVE>— run the named exploit (with--i-knowauthorization gate)iamroot --detect-rules— dump auditd / sigma / yara rules for every bundled CVE so blue teams can drop them into their toolingiamroot --mitigate— apply temporary mitigations for CVEs the host is vulnerable to (sysctl knobs, module blacklists, etc.)
Status
Active. Bootstrap phase as of 2026-05-16. First module
(copy_fail_family) absorbed from the standalone DIRTYFAIL project
and is verified working end-to-end on Ubuntu 26.04 + Alma 9 + Debian
13 with full AppArmor bypass + container escape demo + persistent
backdoor mode.
See CVES.md for the full curated CVE list with patch
status. See ROADMAP.md for the next planned modules.
Why this exists
The Linux kernel privilege-escalation space is fragmented:
linux-exploit-suggester/linpeas: suggest applicable exploits, don't run themauto-root-exploit/kernelpop: bundle exploits, but largely stale, no CI, no defensive signatures- Per-CVE single-PoC repos: usually one author, often abandoned within months of release, often only one distro
IAMROOT's bet is that there's room for a single curated bundle that (1) actively maintains a small set of high-quality exploits across a multi-distro matrix, and (2) ships detection rules alongside each exploit so the same project serves both red and blue teams.
Architecture
Each CVE (or tightly-related family) is a module under modules/.
Modules export a standard interface: detect(), exploit(),
mitigate(), cleanup(), plus metadata describing affected kernel
ranges, distro coverage, and CI test matrix.
Shared infrastructure (AppArmor bypass, su-exploitation primitives,
fingerprinting, common utilities) lives in core/.
See docs/ARCHITECTURE.md for the
module-loader design and how to add a new CVE.
Build & run
make # build all modules
sudo ./iamroot --scan # what's this box vulnerable to?
sudo ./iamroot --scan --json # machine-readable output for CI/SOC pipelines
sudo ./iamroot --detect-rules --format=sigma > rules.yml
sudo ./iamroot --exploit copy_fail --i-know # actually run an exploit
Acknowledgments
Each module credits the original CVE reporter and PoC author in its
NOTICE.md. IAMROOT is the bundling and bookkeeping layer; the
research credit belongs to the people who found the bugs.
License
MIT — see LICENSE.