Submission Details
Severity:
Cache pools[poolId].poolBalance in 'buyLoan'
Summary
The state variable pools[poolId].poolBalance is read from storage 3 times in one function, caching it into memory will reduce gas usage of buyLoan function.
Vulnerability Details
486: if (pools[poolId].poolBalance < totalDebt) revert PoolTooSmall();
489: _updatePoolBalance(poolId, pools[poolId].poolBalance - totalDebt);
500: pools[oldPoolId].poolBalance + loan.debt + lenderInterest
Impact
Gas usage.
Tools Used
Manual review.
Recommendations
Cache pools[poolId].poolBalance in memory, before its first declaration in the buyLoans function.
Prize pool breakdown
Total prize
20,000 USDC
nSLOC
70628 USDC / LOC
18,000 USDC
2,000 USDC
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