Remove Memory.asPointer and Memory.asBytes32 + add warning about setting the FMP to a low value

[Amxx]

Fixes 5.6 audit N.05

PR Checklist

• Tests
• Documentation
• Changeset entry (run npx changeset add)

[openzeppelin-security-agent]

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Project	Scan	Issues	Details	Updated
Openzeppelin Contracts	🟡 Queued	—	View	Feb 11, 2026, 3:35 PM (UTC)

[changeset-bot]

🦋 Changeset detected

Latest commit: 97c206e

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
openzeppelin-solidity	Minor

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[coderabbitai]

Walkthrough

This pull request removes two helper functions from Memory.sol—asBytes32(Pointer) and asPointer(bytes32)—and updates all code that depends on them. The internal _nullPtr() function in Accumulators.sol is modified to use Memory.Pointer.wrap(0) directly. Test files are updated to replace calls to the removed functions with Memory.Pointer.wrap() and Memory.Pointer.unwrap() methods. Related test cases for the removed functions are deleted. A changeset entry documents a minor version bump for openzeppelin-solidity. An explanatory note is added to the setFreeMemoryPointer function's documentation.

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main changes: removing two functions (Memory.asPointer and Memory.asBytes32) and adding a warning about setting the FMP to a low value.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description check	✅ Passed	The PR description directly references fixing audit item 5.6 (N.05) and describes the core changes: removing Memory.asPointer and Memory.asBytes32, and adding a warning about FMP configuration.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix/memory/add-warning

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