New submission from Zackery Spytz <zsp...@gmail.com>:

Signed integer overflow can occur in the overflow check in PyCArrayType_new() 
if "itemsize" is large enough.

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components: Extension Modules, ctypes
messages: 339326
nosy: ZackerySpytz
priority: normal
severity: normal
status: open
title: Signed integer overflow in _ctypes.c's PyCArrayType_new()
type: behavior
versions: Python 2.7, Python 3.7, Python 3.8

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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue36504>
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