New submission from Oren Milman <ore...@gmail.com>:
The following code crashes:
import zipimport
zi = zipimport.zipimporter.__new__(zipimport.zipimporter)
zi.find_module('foo')
This is because get_module_info() (in Modules/zipimport.c) assumes that the
zipimporter object is initialized, so it assumes that `self->prefix` is not
NULL, and passes it to make_filename(), which crashes.
get_module_code() makes the same assumption, and
zipimport_zipimporter_get_data_impl()
assumes that `self->archive` is not NULL, and passes it to
PyUnicode_GET_LENGTH(),
which crashes.
Thus, every method of an uninitialized zipimporter object might crash.
I would open a PR to fix this soon.
----------
components: Extension Modules
messages: 304346
nosy: Oren Milman
priority: normal
severity: normal
status: open
title: crashes when calling methods of an uninitialized zipimport.zipimporter
object
type: crash
versions: Python 3.7
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue31781>
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