[bong-water-water-bong]

Closes the three open code-scanning alerts.

• Alerts 2 and 3 (cpp/integer-multiplication-cast-to-long, laya/scorer.cpp): the collate and key-padding loops computed i * L + j in int before indexing. Each index is now widened to size_t before the multiply, as the rest of the file already does. With current inputs these can't overflow; the change makes the math match the vectors' size_t sizes.
• Alert 1 (actions/missing-workflow-permissions, ci.yml): the workflow now declares permissions: contents: read, like every other workflow in the repo.

laya/scorer.cpp compiles cleanly (g++ -std=c++20 -fsyntax-only).

🤖 Generated with Claude Code

[context7]

Docs7 for 1bit-monster/engine

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Commit 2cdbd09

[github-actions]

PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🧪 No relevant tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Integer Overflow Risk The fix addresses potential integer overflow in index calculations by ensuring that indices are widened to size_t before multiplication. This change aligns the code with the rest of the file's usage of size_t for vector indexing, preventing possible undefined behavior when dealing with large inputs. if (key_pad[(size_t)b * L + j]) { sr[j] = -INFINITY; continue; } Consistent Indexing Types The code now consistently uses size_t for indexing in the collate and key-padding loops, matching the vector sizes and preventing type mismatch issues that could lead to incorrect memory access or overflow. for (size_t j = 0; j < seqs[i].size(); ++j) { input_ids[(size_t)i * L + j] = seqs[i][j]; attn[(size_t)i * L + j] = 1; } for (size_t j = 0; j < markers[i].size(); ++j) { mpos[(size_t)i * K + j] = markers[i][j]; mmask[(size_t)i * K + j] = 1; } Memory Access Alignment The change ensures that memory access patterns in the memcpy call use size_t for indexing, which is consistent with the vector sizes and prevents potential issues with signed/unsigned integer comparisons or overflow in memory addressing. memcpy(h.data() + ((size_t)b * L + t) * D, tok_emb_.data() + (size_t)input_ids[(size_t)b * L + t] * D, D * 4);