Core Contracts
Regnum Aurum Acquisition Corp
HardhatReal World AssetsNFT
77,280 USDC
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Submission Details
Severity: high
Valid

Gauge rewards are never distributed

OpaBatyo

Summary

distributeRewards in GaugeController forgets to send any tokens.

Details

Whenever distributeRewards is invoked, it performs some sanity checks and a reward calculation before proceeding to notifyRewardAmount in the gauge.

function distributeRewards(
address gauge
) external override nonReentrant whenNotPaused {
if (!isGauge(gauge)) revert GaugeNotFound();
if (!gauges[gauge].isActive) revert GaugeNotActive();
uint256 reward = _calculateReward(gauge);
if (reward == 0) return;
IGauge(gauge).notifyRewardAmount(reward);
emit RewardDistributed(gauge, msg.sender, reward);
}

Let's observe notifyRewardAmount

function notifyRewardAmount(uint256 amount) external override onlyController updateReward(address(0)) {
if (amount > periodState.emission) revert RewardCapExceeded();
rewardRate = notifyReward(periodState, amount, periodState.emission, getPeriodDuration());
periodState.distributed += amount;
@> uint256 balance = rewardToken.balanceOf(address(this)); // @audit this was never incremented anywhere
if (rewardRate * getPeriodDuration() > balance) {
revert InsufficientRewardBalance();
}
lastUpdateTime = block.timestamp;
emit RewardNotified(amount);
}

There is no line of code where the reward token is actually transferred to the gauge in question, meaning that the balance will always be 0 and the method witll always revert

Impact

Broken functionality, loss of rewards

Mitigation

Send the tokens

Updates

Lead Judging Commences

inallhonesty Lead Judge 10 months ago
Submission Judgement Published
Validated
Assigned finding tags:

GaugeController notifies gauges of rewards without transferring tokens in both distributeRewards and _distributeToGauges functions, breaking reward distribution

inallhonesty Lead Judge 10 months ago
Submission Judgement Published
Validated
Assigned finding tags:

GaugeController notifies gauges of rewards without transferring tokens in both distributeRewards and _distributeToGauges functions, breaking reward distribution

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