Public bug reported:
**Title:** NetworkManager aborts (SIGABRT) in nms-keyfile-writer.c:551
when importing an .ovpn profile on 26.04
**Package:** network-manager
**Ubuntu version:** 26.04 LTS (resolute), upgraded from 24.04 LTS
**Package versions:** (run `apt policy network-manager libnm0 network-
manager-openvpn network-manager-openvpn-gnome libnetplan1` and paste the
result here)
**What happened:**
Importing an OpenVPN profile makes the NetworkManager daemon crash. This
happens from both the GUI (Settings → Network → VPN → Import from file) and the
command line:
```
nmcli connection import type openvpn file client.ovpn
Error: Failed to add 'client' connection: Message recipient disconnected from
message bus without replying
```
systemd then restarts the daemon. It happened every time I tried, at
least five times in one session.
**Expected:** The profile is imported, or the import fails with an error
message. The daemon should not abort.
**Log (`journalctl -u NetworkManager -b`):**
```
<error> BUG: the profile cannot be stored in keyfile format without becoming
unusable: cannot access file: No such file or directory
nm:ERROR:../src/core/settings/plugins/keyfile/nms-keyfile-writer.c:551:<unknown-fcn>:
assertion failed: (<dropped>)
Bail out! nm:ERROR:../src/core/settings/plugins/keyfile/nms-keyfile-writer.c:551
NetworkManager.service: Main process exited, code=dumped, status=6/ABRT
```
**Notes:**
- The `.ovpn` file has the CA, certificate and private key inline (`<ca>`,
`<cert>`, `<key>` blocks). The private key is passphrase-protected, and the
profile uses `auth-user-pass`.
- After the failed imports, `~/.cert/nm-openvpn/` contained only certificate
files from earlier imports on the old system. No new files were written. I
don't know whether the missing certificate files cause the "cannot access file"
error, but it may be related.
- The same assertion at the same line appears in earlier reports with different
triggers: LP #2039825 (EAP settings) and LP #2055148 (DNS over TLS).
- Running `openvpn` directly with the same file works fine. Only the
NetworkManager import crashes.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: network-manager 1.54.3-2ubuntu3.1
ProcVersionSignature: Ubuntu 7.0.0-34.34-generic 7.0.14
Uname: Linux 7.0.0-34-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Oct 4 11:15:21 2026
InstallationDate: Installed on 2024-05-02 (885 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
IpRoute:
default via 192.168.0.1 dev wlp2s0 proto dhcp src 192.168.0.197 metric 600
127.0.0.0/8 dev lo proto kernel scope link src 127.0.0.1 metric 30
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.0.0/24 dev wlp2s0 proto kernel scope link src 192.168.0.197 metric 600
192.168.49.0/24 dev br-db26dcff5fea proto kernel scope link src 192.168.49.1
linkdown
ProcEnviron:
LANG=en_US.UTF-8
PATH=(custom, no user)
SHELL=/bin/bash
TERM=xterm-256color
XDG_RUNTIME_DIR=<set>
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: network-manager
UpgradeStatus: Upgraded to resolute on 2026-10-01 (3 days ago)
mtime.conffile..etc.NetworkManager.NetworkManager.conf:
2025-03-23T08:58:25.756072
nmcli-nm:
RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI
WWAN-HW WWAN METERED
running 1.54.3 connected started full enabled enabled
enabled missing enabled no (guessed)
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug resolute wayland-session
** Description changed:
- Here is a short report you can paste into Launchpad. Fill in the version
- numbers in the brackets first.
-
- ---
-
**Title:** NetworkManager aborts (SIGABRT) in nms-keyfile-writer.c:551
when importing an .ovpn profile on 26.04
**Package:** network-manager
**Ubuntu version:** 26.04 LTS (resolute), upgraded from 24.04 LTS
**Package versions:** (run `apt policy network-manager libnm0 network-
manager-openvpn network-manager-openvpn-gnome libnetplan1` and paste the
result here)
**What happened:**
Importing an OpenVPN profile makes the NetworkManager daemon crash. This
happens from both the GUI (Settings → Network → VPN → Import from file) and the
command line:
```
nmcli connection import type openvpn file client.ovpn
Error: Failed to add 'client' connection: Message recipient disconnected from
message bus without replying
```
systemd then restarts the daemon. It happened every time I tried, at
least five times in one session.
**Expected:** The profile is imported, or the import fails with an error
message. The daemon should not abort.
**Log (`journalctl -u NetworkManager -b`):**
```
<error> BUG: the profile cannot be stored in keyfile format without becoming
unusable: cannot access file: No such file or directory
nm:ERROR:../src/core/settings/plugins/keyfile/nms-keyfile-writer.c:551:<unknown-fcn>:
assertion failed: (<dropped>)
Bail out!
nm:ERROR:../src/core/settings/plugins/keyfile/nms-keyfile-writer.c:551
NetworkManager.service: Main process exited, code=dumped, status=6/ABRT
```
**Notes:**
- The `.ovpn` file has the CA, certificate and private key inline (`<ca>`,
`<cert>`, `<key>` blocks). The private key is passphrase-protected, and the
profile uses `auth-user-pass`.
- After the failed imports, `~/.cert/nm-openvpn/` contained only certificate
files from earlier imports on the old system. No new files were written. I
don't know whether the missing certificate files cause the "cannot access file"
error, but it may be related.
- The same assertion at the same line appears in earlier reports with
different triggers: LP #2039825 (EAP settings) and LP #2055148 (DNS over TLS).
- Running `openvpn` directly with the same file works fine. Only the
NetworkManager import crashes.
ProblemType: Bug
DistroRelease: Ubuntu 26.04
Package: network-manager 1.54.3-2ubuntu3.1
ProcVersionSignature: Ubuntu 7.0.0-34.34-generic 7.0.14
Uname: Linux 7.0.0-34-generic x86_64
ApportVersion: 2.34.1-0ubuntu0.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Sun Oct 4 11:15:21 2026
InstallationDate: Installed on 2024-05-02 (885 days ago)
InstallationMedia: Ubuntu 24.04 LTS "Noble Numbat" - Release amd64 (20240424)
IpRoute:
- default via 192.168.0.1 dev wlp2s0 proto dhcp src 192.168.0.197 metric 600
- 127.0.0.0/8 dev lo proto kernel scope link src 127.0.0.1 metric 30
- 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
- 192.168.0.0/24 dev wlp2s0 proto kernel scope link src 192.168.0.197 metric
600
- 192.168.49.0/24 dev br-db26dcff5fea proto kernel scope link src 192.168.49.1
linkdown
+ default via 192.168.0.1 dev wlp2s0 proto dhcp src 192.168.0.197 metric 600
+ 127.0.0.0/8 dev lo proto kernel scope link src 127.0.0.1 metric 30
+ 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
+ 192.168.0.0/24 dev wlp2s0 proto kernel scope link src 192.168.0.197 metric
600
+ 192.168.49.0/24 dev br-db26dcff5fea proto kernel scope link src 192.168.49.1
linkdown
ProcEnviron:
- LANG=en_US.UTF-8
- PATH=(custom, no user)
- SHELL=/bin/bash
- TERM=xterm-256color
- XDG_RUNTIME_DIR=<set>
+ LANG=en_US.UTF-8
+ PATH=(custom, no user)
+ SHELL=/bin/bash
+ TERM=xterm-256color
+ XDG_RUNTIME_DIR=<set>
RebootRequiredPkgs: Error: path contained symlinks.
SourcePackage: network-manager
UpgradeStatus: Upgraded to resolute on 2026-10-01 (3 days ago)
mtime.conffile..etc.NetworkManager.NetworkManager.conf:
2025-03-23T08:58:25.756072
nmcli-nm:
- RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW
WIFI WWAN-HW WWAN METERED
- running 1.54.3 connected started full enabled enabled
enabled missing enabled no (guessed)
+ RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW
WIFI WWAN-HW WWAN METERED
+ running 1.54.3 connected started full enabled enabled
enabled missing enabled no (guessed)
--
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https://bugs.launchpad.net/bugs/2169445
Title:
NetworkManager crashes (SIGABRT, nms-keyfile-writer.c:551) when
importing an .ovpn profile on Ubuntu 26.04
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