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The lifetime of an object is the portion of program execution during which storage is guaranteed to be reserved for it. An object exists, has a constant address, and retains its last-stored value throughout its lifetime. If an object is referred to outside of its lifetime, the behavior is undefined. The value of a pointer becomes indeterminate when the object it points to reaches the end of its lifetime.
Attempting to access an object outside of its lifetime can result in undefined behavior and lead to an exploitable vulnerability (see also bullet 8 of Appendix J).
Noncompliant Code Example (Static Variables)
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