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GGUF-PY-F002 uint64/int64 Count Divergence

Payload repository for Huntr / ProtectAI triage.

Finding: Parser divergence: Python GGUFReader interprets signed GGUF header counts as uint64 and crashes on a 24-byte GGUF.

Primary PoC model: POC/poc_GGUF-PY-F002_uint64_int64.gguf

Primary PoC SHA256: e96aa52c3d88f7a1fc6e5ec721a9e87725237e40e767491bebfceab9534924cc

Proof script: POC/prove_f002_live_repo.py

Confirmed behavior: The crafted 24-byte GGUF sets n_tensors raw bytes to ff ff ff ff ff ff ff ff. The native parser treats this as signed int64 -1 and rejects it at header validation. Python GGUFReader follows a divergent path, treating the value as uint64 and crashing with IndexError.

Key evidence:

PYTHON/PYTHON_LIVE_REPO_OUTPUT.txt
NATIVE/NATIVE_LIVE_REPO_OUTPUT.txt
RAW_OUTPUT/final_repro_output.txt
RAW_OUTPUT/key_markers.txt
SOURCE/gguf_reader_count_and_tensor_loop_excerpt.txt
SOURCE/gguf_cpp_signed_count_validation_excerpt.txt
SOURCE/live_repo_status_and_diff_check.txt
ENVIRONMENT/ENVIRONMENT_LIVE_REPO_CONFIRMED.txt
SHA256SUMS.txt

This repository intentionally contains only GGUF-PY-F002 uint64/int64 count-divergence artifacts.

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GGUF

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