Submission Details
Severity:
Use assembly to check for `address(0)`
Summary
Use assembly to check for address(0)
Vulnerability Details
Saves around 60 gas per this link
167 if (pools[poolId].lender == address(0)) {
240 if (pool.lender == address(0)) revert PoolConfig();
https://github.com/Cyfrin/2023-07-beedle/blob/main/src/Lender.sol
Impact
Gas savings
Tools Used
Manual review
Recommendations
Consider using assembly to check for address(0)
Prize pool breakdown
Total prize
20,000 USDC
nSLOC
70628
USDC / LOC
18,000 USDC
2,000 USDC
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