Publish Layerfault deep challenge LF-CH-HUBLFS-0006

CHALLENGE_ORACLE.json

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+{
+  "attack_surface": [
+    "hub-lfs-state"
+  ],
+  "control_type": "positive",
+  "corpus_id": "LF-CH-HUBLFS-0006",
+  "difficulty": "basic",
+  "expected_decision": "WARN",
+  "ground_truth": "synthetic-generated",
+  "layerfault_rule_expectations": {
+    "candidate_rules": [],
+    "expected_rules": [],
+    "must_not_rules": []
+  },
+  "oracle_ids": [
+    "LF-ORACLE-HUBLFS-0006"
+  ],
+  "related_cases": [],
+  "repo_name": "hub-lfs-pointer-hidden-deep",
+  "safe_fixture": true,
+  "schema": 2,
+  "severity": "low",
+  "techniques": [
+    "lfs",
+    "pointer",
+    "hidden",
+    "deep"
+  ],
+  "transformations": []
+}

FIXTURE_LAYOUT.json

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+{
+  "artifacts": [
+    "repo/a/b/c/d/model.safetensors",
+    "repo/objects/922ad6aef201cecf9dc8a78ad7123bd38e8a52077c772a8d838530a764e66d6d"
+  ],
+  "family": "hublfs",
+  "note": "All content is synthetic and inert. Do not treat this as a production model.",
+  "repo_name": "hub-lfs-pointer-hidden-deep"
+}

LAYERFAULT_CORPUS.json

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+{
+  "candidate_rules": [],
+  "challenge": {
+    "attack_surface": [
+      "hub-lfs-state"
+    ],
+    "control_type": "positive",
+    "difficulty": "basic",
+    "expected_decision": "WARN",
+    "oracle_ids": [
+      "LF-ORACLE-HUBLFS-0006"
+    ],
+    "related_cases": [],
+    "severity": "low",
+    "techniques": [
+      "lfs",
+      "pointer",
+      "hidden",
+      "deep"
+    ],
+    "transformations": []
+  },
+  "corpus_id": "LF-CH-HUBLFS-0006",
+  "description": "Hub lfs pointer hidden deep.",
+  "expected_rules": [],
+  "generator": "challenges.generate_challenge",
+  "ground_truth": "synthetic-generated",
+  "must_not_rules": [],
+  "repo_name": "hub-lfs-pointer-hidden-deep",
+  "repo_type": "model",
+  "safe_fixture": true,
+  "safety": "inert/canary-only",
+  "schema": 1,
+  "validation": {
+    "kind": "verify-package",
+    "target": "repo"
+  }
+}

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
+---
+
+# hub-lfs-pointer-hidden-deep
+
+> **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-CH-HUBLFS-0006`
+
+## Purpose
+
+Hub lfs pointer hidden deep.
+
+## Direct expected Layerfault rules
+
+- None; this repository is a control/comparison input.
+
+## 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.
+
+## Challenge classification
+
+- Severity: **low**
+- Difficulty: **basic**
+- Expected admission decision: **WARN**
+- Control type: **positive**
+- Attack surface: hub-lfs-state
+- Techniques: lfs, pointer, hidden, deep
+- Transformations: none
+
+### Ground-truth oracle IDs
+
+- `LF-ORACLE-HUBLFS-0006`
+
+These oracle IDs describe synthetic ground truth. They do not claim that a
+matching Layerfault detector already exists. A challenge may intentionally expose
+a scanner blind spot and remain unmapped until the detector is implemented.

SHA256SUMS.json

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+[
+  {
+    "path": "CHALLENGE_ORACLE.json",
+    "sha256": "fd05c788a776cd42aafb4749613f22c224ac9c032203f5d9af5826b26cab16e6",
+    "size": 611
+  },
+  {
+    "path": "FIXTURE_LAYOUT.json",
+    "sha256": "3830e8306aca09667ee32430debc58c02ca0e84b973b327c8aeae2edab90b479",
+    "size": 305
+  },
+  {
+    "path": "LAYERFAULT_CORPUS.json",
+    "sha256": "657417cbecf74b1d638a083927654e7dbac47394c6f79ac336cd29e4e441f96a",
+    "size": 850
+  },
+  {
+    "path": "README.md",
+    "sha256": "f3d73d7388530838e33bc52924e7fa018438c4a0e71c3023e571b6244541dc77",
+    "size": 2196
+  },
+  {
+    "path": "repo/a/b/c/d/model.safetensors",
+    "sha256": "2071e829139f9c4849725a1747457ea8d08fa531282f42f92a9a3ac2cbb88a90",
+    "size": 127
+  },
+  {
+    "path": "repo/objects/922ad6aef201cecf9dc8a78ad7123bd38e8a52077c772a8d838530a764e66d6d",
+    "sha256": "922ad6aef201cecf9dc8a78ad7123bd38e8a52077c772a8d838530a764e66d6d",
+    "size": 32
+  }
+]

repo/a/b/c/d/model.safetensors

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+version https://git-lfs.github.com/spec/v1
+oid sha256:2071e829139f9c4849725a1747457ea8d08fa531282f42f92a9a3ac2cbb88a90
+size 127

repo/objects/922ad6aef201cecf9dc8a78ad7123bd38e8a52077c772a8d838530a764e66d6d

@@ -0,0 +1 @@
+LAYERFAULT SYNTHETIC LFS OBJECT