Active Wireguard VPN Causes Seg Fault

Oct 13, 2025 by windailys.com 74 views

Active Wireguard VPN Causes Seg Fault

Introduction

In this article, we will be discussing an issue with the Albert bar, a popular application launcher for Linux, where activating a Wireguard VPN connection causes the application to crash with a segmentation fault. We will explore the current behavior, expected behavior, and any additional information that may be relevant to resolving this issue.

Current Behavior

When a Wireguard VPN connection is activated, the Albert bar shows as expected. However, upon activation, the application crashes with a segmentation fault. This behavior is consistently reproducible.

Expected Behavior

The expected behavior is that activating a VPN connection, in this case, a Wireguard profile, should not cause the Albert bar to crash. Instead, the application should show as expected, with the VPN connection active.

Additional Information

This issue began happening after the VPN icon updated in the latest patch. It is worth noting that a variant of this issue occurs when activating a different VPN connection, specifically an OpenVPN profile. In this case, the icon to indicate the active VPN does not load correctly.

Source Code

The source code for the Albert bar is not publicly available. However, the application logs provide valuable information about the issue.

23:45:12 [debg:albert] 11 ms spent instanciating plugin 'vpn'
23:45:12 [debg:albert.vpn] State changed: ionos Disconnected
23:45:12 [debg:albert.vpn] State changed: hf Disconnected
23:45:12 [debg:albert.vpn] State changed: cc Disconnected
23:45:12 [debg:albert] 11 ms spent instanciating plugin 'vpn'
23:45:16 [debg:albert.query_runtimes] │ Handling│  Scoring│ Count│
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #1 'v' system
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #1 'v' vpn
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     7│ #1 'v' applications
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #1 'v' urlhandler
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #1 'v' caffeine
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #1 'v' ssh
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #1 'v' websearch
23:45:16 [debg:albert.qalculate] "v" is not a valid variable/function/unit.
23:45:16 [debg:albert.query_runtimes] │    10 ms│     0 ms│     0│ #1 'v' calculator_qalculate
23:45:16 [debg:albert.query_runtimes] │ Handling│  Sorting│ Count│
23:45:16 [debg:albert.query_runtimes] │    10 ms│     0 ms│     7│ #1 GLOBAL 'v'
23:45:16 [debg:albert.query_runtimes] │    10 ms│ TRIGGER |     0│ #1  '' 'v' 
23:45:16 [debg:albert.query_runtimes] │ Handling│  Scoring│ Count│
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #2 'vp' applications
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #2 'vp' vpn
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #2 'vp' caffeine
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #2 'vp' system
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #2 'vp' urlhandler
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #2 'vp' ssh
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #2 'vp' websearch
23:45:16 [debg:albert.qalculate] "vp" is not a valid variable/function/unit.
23:45:16 [debg:albert.query_runtimes] │    10 ms│     0 ms│     0│ #2 'vp' calculator_qalculate
23:45:16 [debg:albert.query_runtimes] │ Handling│  Sorting│ Count│
23:45:16 [debg:albert.query_runtimes] │    10 ms│     0 ms│     0│ #2 GLOBAL 'vp'
23:45:16 [debg:albert.query_runtimes] │    10 ms│ TRIGGER |     0│ #2  '' 'vp' 
23:45:16 [debg:albert.query_runtimes] │ Handling│  Scoring│ Count│
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #3 'vpn' applications
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #3 'vpn' caffeine
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #3 'vpn' system
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #3 'vpn' ssh
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #3 'vpn' vpn
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #3 'vpn' websearch
23:45:16 [debg:albert.query_runtimes] │     0 ms│     0 ms│     0│ #3 'vpn' urlhandler
23:45:16 [debg:albert.qalculate] "vpn" is not a valid variable/function/unit.
23:45:16 [debg:albert.query_runtimes] │    10 ms│     0 ms│     0│ #3 'vpn' calculator_qalculate
23:45:16 [debg:albert.query_runtimes] │ Handling│  Sorting│ Count│
23:45:16 [debg:albert.query_runtimes] │    10 ms│     0 ms│     0│ #3 GLOBAL 'vpn'
23:45:16 [debg:albert.query_runtimes] │    10 ms│ TRIGGER |     0│ #3  '' 'vpn' 
23:45:18 [debg:albert.query_runtimes] │     0 ms│ TRIGGER |     0│ #4  'vpn ' '' 
23:45:20 [info:albert] Activating action vpn > /org/freedesktop/NetworkManager/Settings/21 > act (VPN > hf > Connect) 
23:45:20 [debg:albert] Database: Adding activation…
23:45:20 [debg:albert] Updating usage scores…
23:45:20 [debg:albert] Query deleted. [#0 '']
23:45:20 [debg:albert] Query deleted. [#1 'v']
23:45:20 [debg:albert] Query deleted. [#2 'vp']
23:45:20 [debg:albert] Query deleted. [#3 'vpn']
23:45:20 [debg:albert] Query deleted. [#4 '']
23:45:20 [debg:albert.vpn] State changed: hf Connecting…
Segmentation fault (core dumped)

Conclusion

In conclusion, the issue with the Albert bar crashing with a segmentation fault when activating a Wireguard VPN connection is a complex problem that requires further investigation. The application logs provide valuable information about the issue, but the root cause is not immediately apparent. Further debugging and analysis are required to resolve this issue.

Recommendations

Based on the information provided, the following recommendations can be made
Q&A: Active Wireguard VPN Causes Seg Fault

Q: What is the issue with the Albert bar?

A: The issue with the Albert bar is that it crashes with a segmentation fault when activating a Wireguard VPN connection.

Q: What is a segmentation fault?

A: A segmentation fault is a type of error that occurs when a program attempts to access a memory location that it is not allowed to access. This can cause the program to crash or terminate unexpectedly.

Q: What is Wireguard?

A: Wireguard is a popular VPN protocol that provides secure and fast connectivity over the internet. It is known for its ease of use and high performance.

Q: What is Albert?

A: Albert is a popular application launcher for Linux that provides a simple and intuitive way to launch applications and access system settings.

Q: What is the expected behavior of the Albert bar?

A: The expected behavior of the Albert bar is that it should show as expected when a VPN connection is activated, without crashing or terminating unexpectedly.

Q: What is the current behavior of the Albert bar?

A: The current behavior of the Albert bar is that it crashes with a segmentation fault when a Wireguard VPN connection is activated.

Q: What is the root cause of the issue?

A: The root cause of the issue is not immediately apparent from the application logs, and further debugging and analysis are required to resolve this issue.

Q: What are the symptoms of the issue?

A: The symptoms of the issue are that the Albert bar crashes with a segmentation fault when a Wireguard VPN connection is activated.

Q: How can I reproduce the issue?

A: The issue can be reproduced by activating a Wireguard VPN connection and then showing the Albert bar.

Q: What are the possible causes of the issue?

A: The possible causes of the issue are:

A bug in the Wireguard protocol
A bug in the Albert bar application
A conflict between the Wireguard protocol and the Albert bar application
A hardware or software issue with the system

Q: How can I troubleshoot the issue?

A: To troubleshoot the issue, you can try the following steps:

Check the application logs for any errors or warnings
Check the system logs for any errors or warnings
Try disabling the Wireguard protocol and see if the issue persists
Try disabling the Albert bar application and see if the issue persists
Try reinstalling the Wireguard protocol and the Albert bar application

Q: How can I resolve the issue?

A: To resolve the issue, you will need to further investigate the root cause of the problem and take steps to fix it. This may involve debugging the Albert bar application, the Wireguard protocol, or the system itself.