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15 lines
717 B
15 lines
717 B
5 years ago
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Integer overflows reports fall into several "buckets" corresponding to the expected precision of the
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report. The higher the number, the more likely it is to be a false positive.
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* `L1`: The most faithful report, when it *must* be unsafe. For example,
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`[2147483647,2147483647] + [1,1]` in 32-bit signed integer type.
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* `L2`: Less faithful report than `L1`, when it *may* be unsafe. For example,
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`[2147483647,2147483647] + [0,1]` in 32-bit signed integer type. Note that the integer of RHS
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can be 0, which is safe.
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* `L5`: The reports that are not included in the above cases.
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* `U5`: A binary integer operation is unsafe by unknown values, which are usually from unknown
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function calls.
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