usbguard-applet-qt: started immediately leaving the user without mouse or keyboard

Bug #1809269 reported by kortcliptik on 2018-12-20
This bug affects 2 people
Affects Status Importance Assigned to Milestone
usbguard (Debian)
Fix Released
usbguard (Ubuntu)

Bug Description

1) The release of Ubuntu you are using, via 'lsb_release -rd' or System -> About Ubuntu

Description: Ubuntu 18.10
Release: 18.10

2) The version of the package you are using, via 'apt-cache policy pkgname' or by checking in Software Center

  Installed: 0.7.2+ds-2
  Candidate: 0.7.2+ds-2
  Version table:
 *** 0.7.2+ds-2 500
        500 cosmic/universe amd64 Packages
        100 /var/lib/dpkg/status

3) What you expected to happen
Wanted to install and configure with whitelisting mouse, keyboard and some usb memory sticks. After that I thought I would activate or reboot to start the application.

4) What happened instead
The application started immediately leaving me without mouse or keyboard. I had to start a live usb to set "ImplicitPolicyTarget=allow" and then reboot into my system.

The same issue is reported here:

They suggest "USBGuard shouldn't be started before you either generate a policy using the usbguard CLI tool or adjust the usbguard-daemon.conf (/etc/usbguard/usbguard-daemon.conf) file not to block present devices when the daemon starts. If Xubuntu packages usbguard in a way that starts it right after installation without a usable policy, then I can't do anything about that."

Juhani Numminen (jsonic) wrote :

Thanks for filing a bug. It is also helpful to briefly describe the bug in the "summary" field as well. I've paraphrased a sentence from your report for that purpose.

summary: - usbguard-applet-qt
+ usbguard-applet-qt: started immediately leaving the user without mouse
+ or keyboard
Changed in usbguard (Debian):
status: Unknown → Fix Committed
Changed in usbguard (Debian):
status: Fix Committed → Fix Released
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in usbguard (Ubuntu):
status: New → Confirmed
VanillaMozilla (vanillamozilla) wrote :

This appears to be fixed for usbguard/0.7.4+ds-1, but not for earlier versions, including Bionic (see ).

If necessary, as it appears to be, I request a backport to Bionic. If I'm not mistaken, it looks like a simple fix.

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