Submission Details
Severity:
Use `assembly` to write address storage values
Summary
Vulnerability Details
Where it does not affect readability,
using assembly for simple setters allows to save gas not only on deployment,
but also on function calls.
There are 3 instances of this issue:
-
i_buyer = buyer should use
assemblyupdate address to save gas. -
i_seller = seller should use
assemblyupdate address to save gas. -
i_arbiter = arbiter should use
assemblyupdate address to save gas.
Impact
save gas
Tools Used
Recommendations
Using assembly update address to save gas.
For example:
contract Contract1 {
address owner;
function assemblyUpdateOwner(address newOwner) public {
assembly {
sstore(owner.slot, newOwner)
}
}
}
Prize pool breakdown
Total prize
40,000 USDC
nSLOC
186215 USDC / LOC
37,000 USDC
3,000 USDC
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