Integer division is a mathematical operation that divides one integer by another and returns only the whole number part of the quotient. Any fractional remainder is discarded. This operation is common in programming and computational contexts where precise whole number results are required.
Context
In the context of smart contracts and decentralized applications, integer division can be a source of unexpected behavior if not handled with care, potentially leading to discrepancies in reward distribution or fee calculations. Developers must meticulously account for how these operations affect tokenomics and protocol logic. Errors in integer division can introduce subtle but significant flaws into the execution of on-chain operations.
A critical flaw in a newly deployed ERC4626 vault's exchange rate calculation allowed an attacker to drain $9.8 million by manipulating perceived collateral value.
An integer division flaw in a newly deployed vault allowed attackers to manipulate exchange rates, enabling undercollateralized borrowing and significant asset drain.
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