//src/yield/lido/YieldEthStakingLido.sol

    function protocolDeposit(YieldStakeData storage sd, uint256 amount) internal virtual override returns (uint256) {
        require(amount >= MIN_STETH_WITHDRAWAL_AMOUNT, Errors.YIELD_ETH_LT_MIN_AMOUNT);
|>      require(amount <= MAX_STETH_WITHDRAWAL_AMOUNT, Errors.YIELD_ETH_GT_MAX_AMOUNT);
        ...
//src/yield/YieldStakingBase.sol

    function _stake(uint32 poolId, address nft, uint256 tokenId, uint256 borrowAmount) internal virtual {
...
        // stake in protocol and got the yield
        vars.totalYieldBeforeDeposit = getAccountTotalUnstakedYield(address(vars.yieldAccout));
|>      vars.yieldAmount = protocolDeposit(sd, borrowAmount);
        vars.yieldShare = _convertToYieldSharesWithTotalYield(
            address(vars.yieldAccout),
            vars.yieldAmount,
            vars.totalYieldBeforeDeposit
        );

        // update nft shares
        sd.debtShare += vars.debtShare;
 |>     sd.yieldShare += vars.yieldShare; //@audit-info note: multiple stakes, increment total yieldShare
...
//src/yield/YieldStakingBase.sol

    function _stake(uint32 poolId, address nft, uint256 tokenId, uint256 borrowAmount) internal virtual {
...
        vars.totalYieldBeforeDeposit = getAccountTotalUnstakedYield(address(vars.yieldAccout));
+       checkMaxStakingCap(vars.totalYieldBeforeDeposit + borrowAmount);
        vars.yieldAmount = protocolDeposit(sd, borrowAmount);
...
//src/yield/lido/YieldEthStakingLido.sol

    function checkMaxStakingCap(uint256 amount ) public pure override{
        require(amount >= MIN_STETH_WITHDRAWAL_AMOUNT, Errors.YIELD_ETH_LT_MIN_AMOUNT);
        require(amount <= MAX_STETH_WITHDRAWAL_AMOUNT, Errors.YIELD_ETH_GT_MAX_AMOUNT);
...
