Dria

Summary

This audit identifies vulnerabilities due to the use of transferFrom and transfer functions across multiple contracts which impose a 2300 gas cap. Also lack of CEI compliance for the LLMOracleCoordinator::request. These issues may cause transfer failures due to gas capped functions or open potential reentrancy risks.

Vulnerability Details

Several contracts use transferFrom and transfer functions with a capped gas limit and no CEI compliance, leading to potential transfer failures and reentrancy risks:

1. LLMOracleRegistry.sol (register function)

2. BuyerAgent.sol (withdraw function)

3. Swan.sol (transferRoyalties and purchase functions)

4. LLMOracleCoordinator.sol (request function) - missing CEI compliance inside the request function

Impact

Risk of transaction failures during token transfers or potential reentrancy vulnerabilities.

Tools Used

Manual code review

Recommendations

To address these issues, replace transferFrom and transfer with safeTransferFrom and safeTransfer in all instances listed above to improve gas flexibility and CEI compliance.