Submitted by GreyArt, also found by Meera
https://github.com/code-423n4/2022-06-notional-coop/blob/6f8c325f604e2576e2fe257b6b57892ca181509a/index-coop-notional-trade-module/contracts/protocol/modules/v1/NotionalTradeModule.sol#L526
If a _fCashAmount value that is greater than uint88 is passed into the _mint function, downcasting it to uint88 will silently overflow.
ckoopmann (Index Coop) confirmed and commented:
