ruvector-core-win32-x64-msvc OOM: ~4GB malloc crash in cache_optimized.rs::grow()

[9802805]

Summary

ruvector-core-win32-x64-msvc@0.1.29 crashes on Windows with a ~4GB memory allocation failure during initialization. Reproduced on both Node v22.23.2 and v24.18.1.

Error

Root Cause

In crates/ruvector-core/src/cache_optimized.rs, the grow() method uses unchecked multiplication when calculating allocation sizes. Integer overflow produces an undersized value that hits the 4GB boundary, causing malloc to fail.

The upstream weave-logic-ai/ruvector already has a fix using checked_mul() to detect overflow safely.

Steps to Reproduce

1. npm install @ruvector/core@0.1.31 on Windows x64
2. require('@ruvector/core') → loads ruvector-core-win32-x64-msvc
3. Crashes with OOM during initialization

Environment

• OS: Windows 11 Pro 10.0.26200 x64
• Node: v22.23.2 / v24.18.1
• @ruvector/core: 0.1.31
• ruvector-core-win32-x64-msvc: 0.1.29

Related

• The ruflo project blocks this package on Windows via .pnpmfile.cjs to prevent the crash: v3.34: Bridge search path not using HNSW — ruvector-core dead code on default path ruflo#2922