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[Bug 2046844] Re: AppArmor user namespace creation restrictions cause many applications to crash with SIGTRAP

To: edubuntu-bugs@xxxxxxxxxxxxxxxxxxx
From: Andreas Hasenack <2046844@xxxxxxxxxxxxxxxxxx>
Date: Tue, 17 Sep 2024 19:48:26 -0000
Reply-to: Bug 2046844 <2046844@xxxxxxxxxxxxxxxxxx>
Sender: noreply@xxxxxxxxxxxxx

The current apparmor profile for digikam in oracular has these rules:

  /usr/lib/x86_64-linux-gnu/qt5/libexec/QtWebEngineProcess cx -> &digikam//QtWebEngineProcess,
  /usr/lib/aarch64-linux-gnu/qt5/libexec/QtWebEngineProcess cx -> &digikam//QtWebEngineProcess,
  /usr/lib/arm-linux-gnueabihf/qt5/libexec/QtWebEngineProcess cx -> &digikam//QtWebEngineProcess,

There is not even a qt6 path, which in oracular is indeed without the
architecture path component:

$ apt-file find QtWebEngineProcess
apparmor: /etc/apparmor.d/QtWebEngineProcess
libqt5webenginecore5: /usr/lib/aarch64-linux-gnu/qt5/libexec/QtWebEngineProcess
libqt6webenginecore6-bin: /usr/lib/qt6/libexec/QtWebEngineProcess
nsight-compute: /usr/lib/nsight-compute/host/linux-desktop-t210-a64/libexec/QtWebEngineProcess
nsight-systems: /usr/lib/nsight-systems/host-linux-armv8/libexec/QtWebEngineProcess

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https://bugs.launchpad.net/bugs/2046844

Title:
  AppArmor user namespace creation restrictions cause many applications
  to crash with SIGTRAP

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