Publish Layerfault synthetic corpus LF-CORPUS-PY-0001

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "corpus_id": "LF-CORPUS-PY-0001",
+  "description": "HF-style custom loader containing harmless process, native-load, loopback-network, credential, filesystem, dynamic-code, package-manager and NumPy allow_pickle call sites.",
+  "expected_rules": [
+    "LF-CODE-AUTO-MAP",
+    "LF-CODE-SUBPROCESS",
+    "LF-PY-CALL-PROCESS",
+    "LF-CORR-HF-LOADER-PROCESS",
+    "LF-CODE-CTYPES",
+    "LF-PY-NATIVE-LOAD",
+    "LF-CORR-HF-LOADER-NATIVE-LOAD",
+    "LF-CODE-NETWORK",
+    "LF-PY-CALL-NETWORK",
+    "LF-CORR-HF-LOADER-NETWORK",
+    "LF-PY-CREDENTIAL-ACCESS",
+    "LF-CORR-HF-LOADER-CREDENTIALS",
+    "LF-PY-FILESYSTEM-MUTATION",
+    "LF-CORR-HF-LOADER-FILESYSTEM",
+    "LF-CODE-EVAL",
+    "LF-PY-CALL-DYNAMIC-CODE",
+    "LF-CORR-HF-LOADER-DYNAMIC-CODE",
+    "LF-PY-PACKAGE-INSTALL",
+    "LF-CORR-HF-LOADER-INSTALL",
+    "LF-PY-NUMPY-ALLOW-PICKLE",
+    "LF-CORR-NUMPY-ALLOW-PICKLE"
+  ],
+  "generator": "packages.python_capability_chain",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [],
+  "repo_name": "python-custom-loader-capability-chain",
+  "repo_type": "model",
+  "safety": "inert/canary-only",
+  "schema": 1,
+  "validation": {
+    "kind": "verify-package",
+    "target": "."
+  }
+}

README.md

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+---
+license: apache-2.0
+tags:
+- layerfault
+- security-research
+- model-security
+- synthetic
+- adversarial-testing
+extra_gated_prompt: >-
+  This repository is a synthetic security-test artifact from the Layerfault
+  corpus. It intentionally contains adversarial characteristics (e.g.
+  suspicious pickle opcodes, executable-format smuggling, prompt-injection
+  strings) designed to exercise security scanner detection rules. It is
+  **not** a usable ML model and must never be loaded or executed outside an
+  isolated scanner-testing environment. By accepting, you confirm you
+  understand this repository is a test fixture, not production model
+  weights.
+extra_gated_button_content: I understand this is a security test fixture and accept the risk
+gated: auto
+---
+
+# python-custom-loader-capability-chain
+
+> **SECURITY TEST ARTIFACT — DO NOT USE AS A PRODUCTION MODEL**
+
+This repository is part of the Layerfault synthetic security corpus.
+It is deliberately constructed to contain security-relevant characteristics for scanner testing.
+
+**Corpus ID:** `LF-CORPUS-PY-0001`
+
+## Purpose
+
+HF-style custom loader containing harmless process, native-load, loopback-network, credential, filesystem, dynamic-code, package-manager and NumPy allow_pickle call sites.
+
+## Direct expected Layerfault rules
+
+- `LF-CODE-AUTO-MAP`
+- `LF-CODE-SUBPROCESS`
+- `LF-PY-CALL-PROCESS`
+- `LF-CORR-HF-LOADER-PROCESS`
+- `LF-CODE-CTYPES`
+- `LF-PY-NATIVE-LOAD`
+- `LF-CORR-HF-LOADER-NATIVE-LOAD`
+- `LF-CODE-NETWORK`
+- `LF-PY-CALL-NETWORK`
+- `LF-CORR-HF-LOADER-NETWORK`
+- `LF-PY-CREDENTIAL-ACCESS`
+- `LF-CORR-HF-LOADER-CREDENTIALS`
+- `LF-PY-FILESYSTEM-MUTATION`
+- `LF-CORR-HF-LOADER-FILESYSTEM`
+- `LF-CODE-EVAL`
+- `LF-PY-CALL-DYNAMIC-CODE`
+- `LF-CORR-HF-LOADER-DYNAMIC-CODE`
+- `LF-PY-PACKAGE-INSTALL`
+- `LF-CORR-HF-LOADER-INSTALL`
+- `LF-PY-NUMPY-ALLOW-PICKLE`
+- `LF-CORR-NUMPY-ALLOW-PICKLE`
+
+## Candidate rules
+
+These are deliberately plausible targets that remain marked as candidates until the exact
+Layerfault build used for certification confirms them.
+
+- None
+
+## Negative-control rules
+
+These should remain silent for this corpus item.
+
+- None
+
+## Safety
+
+The corpus uses fake secrets, loopback/`.invalid` network destinations, harmless marker output,
+and synthetic model behavior only. It is intended for static scanning and isolated security testing.

SHA256SUMS.json

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+[
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "41577c4a141aad1344fdb2fb9afc177e15e652e6ce9cc8d83fd1a2687375e27f",
+    "size": 1226
+  },
+  {
+    "path": "README.md",
+    "sha256": "c72ca9fd42263eb1c8a25364ee92f218283b12efef5c7325197b89056839ad83",
+    "size": 2333
+  },
+  {
+    "path": "canary.npy",
+    "sha256": "0398209604f3b7330658ab31021254f5e931e0680b450547a1513414acb1a4d3",
+    "size": 140
+  },
+  {
+    "path": "config.json",
+    "sha256": "6066bb9115444d01d760f2901486df17c3b598f90fea1e65be05454bbb2ce950",
+    "size": 134
+  },
+  {
+    "path": "model.safetensors",
+    "sha256": "d2ca18b298651a52fc6fc6d7cf90df5a4b05586832277686f5681ee524af58b0",
+    "size": 856
+  },
+  {
+    "path": "modeling_security.py",
+    "sha256": "5a13f287db0e01aeaf75991bf3e7ff0552a4789e7f0c700312bdc044349c84b1",
+    "size": 962
+  }
+]

canary.npy

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+version https://git-lfs.github.com/spec/v1
+oid sha256:0398209604f3b7330658ab31021254f5e931e0680b450547a1513414acb1a4d3
+size 140

config.json

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+{
+  "auto_map": {
+    "AutoModel": "modeling_security.LayerfaultSecurityFixture"
+  },
+  "model_type": "layerfault_security_fixture"
+}

model.safetensors

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+version https://git-lfs.github.com/spec/v1
+oid sha256:d2ca18b298651a52fc6fc6d7cf90df5a4b05586832277686f5681ee524af58b0
+size 856

modeling_security.py

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+from __future__ import annotations
+import ctypes, os, pathlib, socket, subprocess, sys, tempfile
+import numpy as np
+
+class LayerfaultSecurityFixture:
+    @classmethod
+    def from_pretrained(cls, *args, **kwargs):
+        subprocess.run(["/bin/echo", "LAYERFAULT_CANARY"], check=False)
+        ctypes.CDLL(None)
+        os.environ.get("LAYERFAULT_SYNTHETIC_API_KEY")
+        canary_path = pathlib.Path(tempfile.gettempdir(), "layerfault-corpus-canary")
+        canary_path.write_text("canary")
+        try:
+            socket.create_connection(("127.0.0.1", 9), timeout=0.01)
+        except OSError:
+            pass
+        eval("1 + 1", {"__builtins__": {}}, {})
+        subprocess.run([sys.executable, "-m", "pip", "--version"], check=False)
+        subprocess.run(["pip", "install", "layerfault-synthetic-canary"], check=False)
+        try:
+            np.load("canary.npy", allow_pickle=True)
+        except Exception:
+            pass
+        return cls()