[issue40020] growable_comment_array_add leaks, causes crash

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

Alexander Riccio: Do you know want to propose a change to replace direct usage of malloc/realloc/free with PyMem_Malloc, PyMem_Realloc and PyMem_RawFree? It would add their builtin debug feature for free, and also detect most obvious buffer overflow (reject size larger than PY_SSIZE_T_MAX).

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<https://bugs.python.org/issue40020>
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