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[Bug 2085771] [NEW] font-manager app crashes due to bwrap (apparmor)

 

Public bug reported:

Hi,

When I select from the "Manage" menu the "Google fonts" the application
crashes. It saves its state before crash, so next time the application
does not even start (because it is in the "Google fonts" view).

If started from terminal, the following error message is printed:
-------------
bwrap: setting up uid map: Permission denied

** (font-manager:15240): ERROR **: 13:23:43.007: Failed to fully launch dbus-proxy: Child process exited with code 1
Trace/breakpoint trap (core dumped)
-------------

== 0 ==> lsb_release -rd
Description:	Ubuntu 24.10
Release:	24.10

== 0 ==> apt-cache policy font-manager
font-manager:
  Installed: 0.9.0-3
  Candidate: 0.9.0-3
  Version table:
 *** 0.9.0-3 500
        500 http://archive.ubuntu.com/ubuntu/ oracular/universe amd64 Packages
        100 /var/lib/dpkg/status

As a quick workaround I created an apparmor profile with "userns",
enabled it and started the application successfully.

I did not try the bwrap profile from apparmor-
profiles_4.1.0~beta1-0ubuntu3_all.deb package.

Thanks,
Attila

** Affects: font-manager (Ubuntu)
     Importance: Undecided
         Status: New

** Attachment added: "font-manager.png"
   https://bugs.launchpad.net/bugs/2085771/+attachment/5832430/+files/font-manager.png

** Summary changed:

- font-manager app crashes due to bwrap 
+ font-manager app crashes due to bwrap (apparmor)

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https://bugs.launchpad.net/bugs/2085771

Title:
  font-manager app crashes due to bwrap (apparmor)

Status in font-manager package in Ubuntu:
  New

Bug description:
  Hi,

  When I select from the "Manage" menu the "Google fonts" the
  application crashes. It saves its state before crash, so next time the
  application does not even start (because it is in the "Google fonts"
  view).

  If started from terminal, the following error message is printed:
  -------------
  bwrap: setting up uid map: Permission denied

  ** (font-manager:15240): ERROR **: 13:23:43.007: Failed to fully launch dbus-proxy: Child process exited with code 1
  Trace/breakpoint trap (core dumped)
  -------------

  == 0 ==> lsb_release -rd
  Description:	Ubuntu 24.10
  Release:	24.10

  == 0 ==> apt-cache policy font-manager
  font-manager:
    Installed: 0.9.0-3
    Candidate: 0.9.0-3
    Version table:
   *** 0.9.0-3 500
          500 http://archive.ubuntu.com/ubuntu/ oracular/universe amd64 Packages
          100 /var/lib/dpkg/status

  As a quick workaround I created an apparmor profile with "userns",
  enabled it and started the application successfully.

  I did not try the bwrap profile from apparmor-
  profiles_4.1.0~beta1-0ubuntu3_all.deb package.

  Thanks,
  Attila

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