Comment 0 for bug 1995362

On Ubuntu 22.04.1 LTS, `ldd` (or rather, the underlying `/lib64/ld-linux-x86-64.so.2`) crashes when ran against some of the python extension modules from PySide6 PyPI wheels for linux. This does not happen under 20.04 nor 22.10, and neither does it happen under Fedora 36 (which nominally uses the glibc of same version, 2.35).

When running jammy docker container, the crash does not happen as long as glib2 libraries are not installed (are unresolvable).

The problem was encountered when freezing a PySide6-based python application using pyinstaller, which uses `ldd` to perform binary analysis (and in cases like this, comes up empty, resulting in missing libraries).

Original bug report: https://github.com/pyinstaller/pyinstaller/issues/7197

The problem (at least in PyInstaller + PySide6 context) might become more widespread as `ubuntu-22.04` CI runners become more prevalent on the GitHub actions.

Steps to reproduce (in docker container):

0. docker run --rm -ti ubuntu:jammy bash

1. apt update
2. apt install -y python3 python3-venv
3. python3 -m venv venv
4. . venv/bin/activate
5. pip install pyside6
6. Call the equivalent of `ldd venv/lib64/python3.10/site-packages/PySide6/QtQml.abi3.so˙:

```
LD_TRACE_LOADED_OBJECTS=1 /lib64/ld-linux-x86-64.so.2 venv/lib64/python3.10/site-packages/PySide6/QtQml.abi3.so
```

This gives the expected output:
```
(venv) root@d7fd69601f0d:/# LD_TRACE_LOADED_OBJECTS=1 /lib64/ld-linux-x86-64.so.2 venv/lib64/python3.10/site-packages/PySide6/QtQml.abi3.so
 linux-vdso.so.1 (0x00007ffe2fbcf000)
 libpyside6qml.abi3.so.6.4 => /venv/lib64/python3.10/site-packages/PySide6/libpyside6qml.abi3.so.6.4 (0x00007f43c109a000)
 libQt6Qml.so.6 => /venv/lib64/python3.10/site-packages/PySide6/Qt/lib/libQt6Qml.so.6 (0x00007f43c0b31000)
 libpyside6.abi3.so.6.4 => /venv/lib64/python3.10/site-packages/PySide6/libpyside6.abi3.so.6.4 (0x00007f43c0af3000)
 libshiboken6.abi3.so.6.4 => not found
 libQt6Network.so.6 => /venv/lib64/python3.10/site-packages/PySide6/Qt/lib/libQt6Network.so.6 (0x00007f43c0948000)
 libQt6Core.so.6 => /venv/lib64/python3.10/site-packages/PySide6/Qt/lib/libQt6Core.so.6 (0x00007f43c02c8000)
 libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f43c009e000)
 libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f43bffb7000)
 libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f43bff97000)
 libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f43bff92000)
 libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f43bfd6a000)
 /lib64/ld-linux-x86-64.so.2 (0x00007f43c114b000)
 libshiboken6.abi3.so.6.4 => not found
 libshiboken6.abi3.so.6.4 => not found
 libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f43bfd63000)
 libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007f43bfd0f000)
 libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f43bfcf3000)
 libicui18n.so.56 => /venv/lib64/python3.10/site-packages/PySide6/Qt/lib/libicui18n.so.56 (0x00007f43bf800000)
 libicuuc.so.56 => /venv/lib64/python3.10/site-packages/PySide6/Qt/lib/libicuuc.so.56 (0x00007f43bf400000)
 libicudata.so.56 => /venv/lib64/python3.10/site-packages/PySide6/Qt/lib/libicudata.so.56 (0x00007f43bda00000)
 libglib-2.0.so.0 => not found
 libgthread-2.0.so.0 => not found
 librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f43bfcec000)
 libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007f43bd935000)
 libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007f43bfcbb000)
 libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007f43bfcb5000)
 libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007f43bfca7000)
 libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007f43bfca0000)
 libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007f43bf7ec000)
```

7. Now, install glib so that `libglib-2.0.so.0` and `libgthread-2.0.so.0` become resolvable:

```
apt install -y libglib2.0-0
```

8. Try obtaining imports again:

(venv) root@d7fd69601f0d:/# LD_TRACE_LOADED_OBJECTS=1 /lib64/ld-linux-x86-64.so.2 venv/lib64/python3.10/site-packages/PySide6/QtQml.abi3.so
Segmentation fault (core dumped)

ProblemType: Crash
DistroRelease: Ubuntu 22.04
Package: libc6 2.35-0ubuntu3.1
ProcVersionSignature: Ubuntu 5.15.0-50.56-generic 5.15.60
Uname: Linux 5.15.0-50-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Nov 1 12:14:02 2022
ExecutablePath: /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2
InstallationDate: Installed on 2022-04-21 (193 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
LocalLibraries: /home/rok/venv/lib/python3.10/site-packages/PySide6/Qt/lib/libQt6Network.so.6 /home/rok/venv/lib/python3.10/site-packages/PySide6/libpyside6.abi3.so.6.4 /home/rok/venv/lib/python3.10/site-packages/PySide6/Qt/lib/libQt6Qml.so.6 /home/rok/venv/lib/python3.10/site-packages/PySide6/Qt/lib/libicui18n.so.56 /home/rok/venv/lib/python3.10/site-packages/PySide6/QtQml.abi3.so /home/rok/venv/lib/python3.10/site-packages/PySide6/Qt/lib/libicudata.so.56 /home/rok/venv/lib/python3.10/site-packages/PySide6/Qt/lib/libicuuc.so.56 /home/rok/venv/lib/python3.10/site-packages/PySide6/Qt/lib/libQt6Core.so.6 /home/rok/venv/lib/python3.10/site-packages/PySide6/libpyside6qml.abi3.so.6.4
ProcCmdline: /lib64/ld-linux-x86-64.so.2 venv/lib64/python3.10/site-packages/PySide6/QtQml.abi3.so
SegvAnalysis:
 Segfault happened at: 0x7f16cce8a480: add %ah,-0x19(%rax)
 PC (0x7f16cce8a480) in non-executable VMA region: 0x7f16cce8a000-0x7f16cce8c000 rw-p None
 source "%ah" ok
 destination "-0x19(%rax)" (0x7fff9a2e3f57) ok
SegvReason: executing writable VMA None
Signal: 11
SourcePackage: glibc
StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()
Title: ld-linux-x86-64.so.2 crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin lxd plugdev sambashare sudo
mtime.conffile..etc.apport.crashdb.conf: 2022-11-01T12:12:40.406888
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