code-423n4 / 2021-06-tracer-findings

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Gas savings in getPoolFundingRate() #125

Open code423n4 opened 3 years ago

code423n4 commented 3 years ago

Handle

0xsanson

Vulnerability details

Impact

We can save gas by substituting getPoolTarget() with levNotionalValue/100, since tracer.leveragedNotionalValue() is already saved in memory.

Proof of Concept

https://github.com/code-423n4/2021-06-tracer/blob/main/src/contracts/Insurance.sol#L216

Tools Used

Manual analysis.

Recommended Mitigation Steps

Substitute getPoolTarget() with levNotionalValue/100.