Reproducer: nmcli con add type wifi ifname wlan0 ssid asdasd wifi-sec.key-mgmt wpa-eap 802-1x.eap leap 802-1x.identity username 802-1x.password aaaaaaaa
The crash (SIGABRT) happens in NetworkManager's Netplan integration patch, because of running into a "nm_assert_not_reached()" call. This could easily be avoided by muting that assert and just logging the error and returning FALSE (as is already done below the assert): https://git.launchpad.net/ubuntu/+source/network- manager/tree/debian/patches/netplan/0002-netplan-make-use-of-libnetplan- for-YAML-backend.patch#n319 This would not fix the root-cause, though, which is located in libnetplan: When creating or updating a NetworkManager connection profile that uses a 802.1x eap authentication method unknown to Netplan (such as "leap" or "pwd"), the Netplan keyfile parser is getting confused and generates a broken keyfile config for NetworkManager. https://github.com/canonical/netplan/blob/main/src/parse-nm.c#L383 This is triggered when manually adding/modifying a corresponding NM connection profile (through the NM GUI, nmcli, NM DBus, ...) or automatically, when migrating a corresponding profile through NetworkManager's "Netplan everywhere" migration as part of the .postinst maintainer script. In the latter case the crash is handled gracefully, NetworkManager is restarted and the broken keyfile is restored from a backup. https://git.launchpad.net/ubuntu/+source/network- manager/tree/debian/network-manager.postinst#n67 This can be fixed by supporting all of NetworkManager's 802.1x eap authentication methods in Netplan or by making Netplan's passthrough logic detect such cases and handle them as a fallback. Kudos to @danilogondolfo for the investigation and the proposed patch: https://github.com/canonical/netplan/pull/415 ** Changed in: netplan.io (Ubuntu) Importance: Undecided => High ** Changed in: network-manager (Ubuntu) Importance: High => Medium ** Changed in: network-manager (Ubuntu) Status: New => Triaged ** Changed in: netplan.io (Ubuntu) Status: New => Triaged -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/2038811 Title: /usr/sbin/NetworkManager:6:g_assertion_message:g_assertion_message_expr:_internal_write_connection:nms_keyfile_writer_connection:nms_keyfile_plugin_update_connection Status in netplan.io package in Ubuntu: Triaged Status in network-manager package in Ubuntu: Triaged Bug description: The Ubuntu Error Tracker has been receiving reports about a problem regarding network-manager. This problem was most recently seen with package version 1.44.2-1ubuntu1, the problem page at https://errors.ubuntu.com/problem/0185fff02c2976262de9f862e539829420f9c737 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports. If you do not have access to the Ubuntu Error Tracker and are a software developer, you can request it at http://forms.canonical.com/reports/. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/netplan.io/+bug/2038811/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
