National Institute of Standards and Technology
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Test case 238327

Description

CWE: 191 Integer Underflow
BadSource: fgets Read data from the console using fgets()
GoodSource: Set data to a small, non-zero number (negative two)
Sinks: decrement
GoodSink: Ensure there will not be an underflow before decrementing data
BadSink : Decrement data, which can cause an Underflow
Flow Variant: 54 Data flow: data passed as an argument from one function through three others to a fifth; all five functions are in different source files

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