[issue24630] null pointer dereference in `load_newobj_ex`

[Brad Larsen]

Brad Larsen added the comment:

Also, it appears that the `ob_type` field of `cls` need not be NULL; it can be an arbitrary value treated as a memory location.

Attached another POC that triggers this case.

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Added file: http://bugs.python.org/file39922/bug-nonnull.py

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