RS.DBZ.ITERATOR.FLOAT
Loop iterator might be used in a division by floating-point zero
An attempt to do a division or modulo operation using zero as the divisor causes a runtime error. Division by zero defects often occur due to ineffective error handling or race conditions, and typically cause abnormal program termination. Before a value is used as the divisor of a division or modulo operation in Rust code, it must be checked to confirm that it is not equal to zero.
The RS.DBZ checkers look for instances in which a zero constant value is used as the divisor of a division or modulo operation.
The RS.DBZ.ITERATOR.FLOAT checker flags situations in which a loop iterator that has been assigned a zero constant value in the execution of the loop might later be used as a divisor in a division or modulo operation without first being checked for a zero value.
Vulnerability and risk
Integer division by zero usually results in the failure of the process or in an exception. It can also result in the success of the operation, but gives an erroneous answer. Floating-point division by zero is more subtle. It depends on the implementation of the compiler.
Mitigation and prevention
Division by zero issues typically occur due to ineffective exception handling. To avoid this vulnerability, check for a zero value before using it as the divisor of a division or modulo operation.