Fraxlend (Frax Finance) contest - 0xc0ffEE's results

Fraxlend: A permissionless lending platform and the final piece of the Frax Finance Defi Trinity.

General Information

Platform: Code4rena

Start Date: 12/08/2022

Pot Size: $50,000 USDC

Total HM: 15

Participants: 120

Period: 5 days

Judge: Justin Goro

Total Solo HM: 6

Id: 153

League: ETH

Frax Finance

Findings Distribution

Researcher Performance

Rank: 99/120

Findings: 1

Award: $21.17

🌟 Selected for report: 0

🚀 Solo Findings: 0

  1. https://github.com/code-423n4/2022-08-frax/blob/c4189a3a98b38c8c962c5ea72f1a322fbc2ae45f/src/contracts/FraxlendPairCore.sol#L441 . Could use unchecked here because _currentRateInfo.lastTimestamp is always timestamp in the past blocks
  2. https://github.com/code-423n4/2022-08-frax/blob/c4189a3a98b38c8c962c5ea72f1a322fbc2ae45f/src/contracts/FraxlendPairCore.sol#L478 . Could use unchecked here because _interestEarned here is <= type(uint128).max , then (_interestEarned * _currentRateInfo.feeToProtocolRate) can not exceed 2**192 - 1 ; the FEE_PRECISON is also a non-zero constant
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