[issue45329] pyexpat: segmentation fault when `--with-system-expat` is specified

[TAGAMI Yukihiro]

Change by TAGAMI Yukihiro :


--
keywords: +patch
pull_requests: +27017
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/28649

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[issue45329] pyexpat: segmentation fault when `--with-system-expat` is specified

[TAGAMI Yukihiro]

New submission from TAGAMI Yukihiro :

Some tests, which are related to pyexpat, get failed with `./configure 
--with-system-expat`.
```
11 tests failed:   
test_minidom test_multiprocessing_fork  
 
test_multiprocessing_forkserver test_multiprocessing_spawn
test_plistlib test_pulldom test_pyexpat test_sax test_xml_etree
test_xml_etree_c test_xmlrpc
```

Since 3.10.0b2, `Modules/pyexpat.c` has been broken.
I guess this is caused by accessing freed memory.
For more detail, please refer to the attached file.

--
components: Extension Modules
files: pyexpat-log.txt
messages: 402949
nosy: y-tag
priority: normal
severity: normal
status: open
title: pyexpat: segmentation fault when `--with-system-expat` is specified
type: crash
versions: Python 3.10, Python 3.11
Added file: https://bugs.python.org/file50317/pyexpat-log.txt

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