Segmentation fault on xmlsec.tree.add_ids() in Python Development Mode #259
Description
boom.py:
from lxml import etree
import xmlsec
template = etree.parse('sign1-res.xml').getroot()
xmlsec.tree.add_ids(template, ["ID"])with sign-res.xml coming from the xmlsec examples.
Expected output
$ python boom.py
$Observed output
$ PYTHONDEVMODE=1 python boom.py
Debug memory block at address p=0x5556aed07c40: API '!'
15987178197214944733 bytes originally requested
The 7 pad bytes at p-7 are not all FORBIDDENBYTE (0xfd):
at p-7: 0x00 *** OUCH
at p-6: 0x00 *** OUCH
at p-5: 0x00 *** OUCH
at p-4: 0x00 *** OUCH
at p-3: 0x00 *** OUCH
at p-2: 0x00 *** OUCH
at p-1: 0x00 *** OUCH
Because memory is corrupted at the start, the count of bytes requested
may be bogus, and checking the trailing pad bytes may segfault.
The 8 pad bytes at tail=0xddde33348cae5a1d are Fatal Python error: Segmentation fault
Current thread 0x00007fb7df1d8000 (most recent call first):
File "boom.py", line 6 in <module>
Extension modules: lxml._elementpath, lxml.etree, xmlsec (total: 3)
Segmentation fault
$Environment
I'm running on Ubuntu 22.04 with system python 3.10.6 and xmlsec 1.3.13.
pip list
Package Version
------------------ -------------
blinker 1.4
chardet 4.0.0
cryptography 3.4.8
devscripts 2.22.1ubuntu1
dh-virtualenv 1.2.2
distro 1.7.0
httplib2 0.20.2
importlib-metadata 4.6.4
isodate 0.6.1
jeepney 0.7.1
keyring 23.5.0
launchpadlib 1.10.16
lazr.restfulclient 0.14.4
lazr.uri 1.0.6
lxml 4.9.2
more-itertools 8.10.0
netifaces 0.11.0
oauthlib 3.2.0
pip 22.0.2
PyGObject 3.42.1
PyJWT 2.3.0
pyparsing 2.4.7
python-apt 2.4.0+ubuntu1
python-debian 0.1.43ubuntu1
python3-saml 1.15.0
SecretStorage 3.3.1
setuptools 59.6.0
six 1.16.0
supervisor 4.2.1
VapourSynth 54
wadllib 1.3.6
wheel 0.37.1
xmlsec 1.3.13
zipp 1.0.0
apt list | grep xmlsec | grep installed
libxmlsec1-dev/jammy,now 1.2.33-1build2 amd64 [installed]
libxmlsec1-gcrypt/jammy,now 1.2.33-1build2 amd64 [installed,automatic]
libxmlsec1-gnutls/jammy,now 1.2.33-1build2 amd64 [installed,automatic]
libxmlsec1-nss/jammy,now 1.2.33-1build2 amd64 [installed,automatic]
libxmlsec1-openssl/jammy,now 1.2.33-1build2 amd64 [installed,automatic]
libxmlsec1/jammy,now 1.2.33-1build2 amd64 [installed,automatic]