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[John Johansen <2046844@xxxxxxxxxxxxxxxxxx>]

There is another improvement coming before prompt that may (it will
depend on the sandbox) also take care of many of the browser sandbox
issues, as well as a few other uses of unprivileged user namespaces. On
user namespace creation we will be able to transition the profile to a
new profile with a reduced set of privileges. Having a catch-all profile
that allows creation of user namespaces for a sandbox that doesn't need
any elevated privileges but is instead just being used to achieve, pid
and uid separation.

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

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

Status in apparmor package in Ubuntu:
  Confirmed
Status in digikam package in Ubuntu:
  Confirmed
Status in epiphany-browser package in Ubuntu:
  Confirmed
Status in evolution package in Ubuntu:
  Confirmed
Status in falkon package in Ubuntu:
  Confirmed
Status in freecad package in Ubuntu:
  Confirmed
Status in gnome-packagekit package in Ubuntu:
  Confirmed
Status in kontact package in Ubuntu:
  Confirmed
Status in qutebrowser package in Ubuntu:
  Confirmed

Bug description:
  Hi, I run Ubuntu development branch 24.04 and I have a problem with
  Epiphany browser 45.1-1 (Gnome Web): program doesn't launch, and I get
  this error

  $ epiphany
  bwrap: Creating new namespace failed: Permission denied

  ** (epiphany:12085): ERROR **: 14:44:35.023: Failed to fully launch dbus-proxy: Le processus fils s’est terminé avec le code 1
  Trappe pour point d'arrêt et de trace (core dumped)

  $ epiphany
  bwrap: Creating new namespace failed: Permission denied

  ** (epiphany:30878): ERROR **: 22:22:26.926: Failed to fully launch dbus-proxy: Le processus fils s’est terminé avec le code 1
  Trappe pour point d'arrêt et de trace (core dumped)

  Thanks for your help!

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