Submission Details
Severity:
PUSH0 Opcode Compatibility
Description
The Solidity version used may generate bytecode with PUSH0 opcode (EIP-3855), which isn't supported by all chains.
Impact
Potential deployment failures on L2s
Limited cross-chain compatibility
Proof of Concept
contract Push0CompatibilityTest is Test {
function testPush0Deployment() public {
// Set EVM version to Shanghai (includes PUSH0)
vm.chainId(1);
TokenDivider mainnetContract = new TokenDivider();
// Try to deploy on an L2 that doesn't support PUSH0
vm.chainId(10); // Optimism
// This would fail in production on L2s without PUSH0 support
new TokenDivider();
}
}
Note: While our test environment cannot fully simulate opcode restrictions, this remains a real issue for L2 deployments.
Recommendation
Specify EVM version in compiler settings:
{
"evm_version": "paris"
}
Rewards breakdown
nSLOC
181This contest has a flat reward structure with the following payouts:
100 EXP
20 EXP
2 EXP
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