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fix: address review findings — CREATE2 guard, transition test, docs

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- LiquidityManager.setFeeDestination: add CREATE2 bypass guard — also
  blocks re-assignment when the current feeDestination has since acquired
  bytecode (was a plain address when set, contract deployed to it later)
- LiquidityManager.setFeeDestination: expand NatSpec to document the
  EOA-mutability trade-off and the CREATE2 guard explicitly
- Test: add testSetFeeDestinationEOAToContract_Locks covering the
  realistic EOA→contract transition (the primary lock-activation path)
- red-team.sh: add comment that DEPLOYER_PK is Anvil account-0 and must
  only be used against a local ephemeral Anvil instance
- ARCHITECTURE.md: document feeDestination conditional-lock semantics and
  contrast with Kraiken's strictly set-once liquidityManager/stakingPool

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
openhands 2026-03-12 17:13:50 +00:00
parent 9ff96ff137
commit b902b89e3b
4 changed files with 35 additions and 4 deletions
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17
onchain/src/LiquidityManager.sol
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@ -114,13 +114,24 @@ contract LiquidityManager is ThreePositionStrategy, PriceOracle {
if (amount1Owed > 0) IERC20(poolKey.token1).safeTransfer(msg.sender, amount1Owed);
}
/// @notice Sets the fee destination address (deployer only)
/// @dev Any EOA can be set repeatedly. Once a contract address is set, locks permanently.
/// @notice Sets the fee destination address (deployer only).
/// @dev Conditional trapdoor: EOA addresses can be set repeatedly (allows setup/migration),
/// but once a contract address is assigned, feeDestinationLocked is set and no further
/// changes are allowed. Note: the deployer retains fee-redirect ability while feeDestination
/// is an EOA; this is an intentional trade-off that enables staged deployment.
///
/// CREATE2 guard: also blocks re-assignment if the current feeDestination has since
/// acquired bytecode (i.e. was a pre-computed EOA when set, later deployed to).
/// @param feeDestination_ The address that will receive trading fees
function setFeeDestination(address feeDestination_) external {
require(msg.sender == deployer, "only deployer");
if (address(0) == feeDestination_) revert ZeroAddressInSetter();
require(!feeDestinationLocked, "fee destination locked");
// Block if explicitly locked OR if the current destination has since become a contract
// (guards CREATE2 bypass: address looked like an EOA when set, bytecode deployed later)
require(
!feeDestinationLocked && (feeDestination == address(0) || feeDestination.code.length == 0),
"fee destination locked"
);
feeDestination = feeDestination_;
if (feeDestination_.code.length > 0) {
feeDestinationLocked = true;