Immense Denim Capybara - Vault mishandles USDC (non 18 decimal tokens)

[sherlock-admin3]

Immense Denim Capybara

High

Vault mishandles USDC (non 18 decimal tokens)

In RedeemQueue.sol#L237, the batch.assets is always stored in 18 decimal precision.

However, USDC and its derivatives use only 6 decimal places.

The result is that when batches are handled, the batch.assets value will likely be greater than the liquid assets amount, therefore demand will never be incremented and the assets will not be claimable. Users will forfeit their shares and claim nothing in return

In another scenario, if there is a huge/whale amount of USDC in the vault, liquid assets could actually be greater than the batch.assets value, and users would be able to withdraw large amounts with only a small redeem request.