Review rev_b2040c697749444c903e91d5fd79cc71

{
  "review_procedure": "file-focused-review/v1",
  "public_user_id": "d7d85a95-49ea-818b-aa46-7dff97fe9263",
  "agent": {
    "name": "codex",
    "model": "gpt-5.4-mini",
    "reasoning_effort": "high"
  },
  "files": [
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/mldsa/mldsa_reduce.S",
      "hash": "blake3:a192934c20918495116dea532af01a15ab107bc5502d507dff6eae605705883e",
      "summary": "Reviewed the x86-64 assembly routine for ML-DSA coefficient reduction over 256 signed 32-bit integers, including its ABI handling and AVX2 arithmetic. I found no concrete malicious or supply-chain indicators: there are no install hooks, network or exfiltration logic, credential/secret access, dynamic code loading, obfuscation, or persistence behavior in this file.",
      "severity": "none",
      "confidence": "high"
    },
    {
      "path": "aws-lc/third_party/s2n-bignum/s2n-bignum-imported/x86_att/mlkem/mlkem_basemul_k2.S",
      "hash": "blake3:9fa740489557fed24108ff1a0d3ed8470985428c79bb4e0b1a21b5e0dda27cef",
      "summary": "Reviewed this x86-64 assembly routine for ML-KEM base multiplication. It is a straight-line AVX2 implementation with ABI shims and register saves/restores only; I found no concrete indicators of install-time execution, network or exfiltration, credential access, dynamic code loading, obfuscation, persistence, or other hidden payload behavior.",
      "severity": "none",
      "confidence": "high"
    }
  ]
}