NetworkManager/rh1023571-fix-crash-ifcfg-rh-reload.patch

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commit 912152cf85d29db45f706522c8e3ce13eaf13197
Author: Jiří Klimeš <jklimes@redhat.com>
Date: Tue Oct 29 15:02:30 2013 +0100
ifcfg-rh: fix crash when doing managed->unmanaged transition
Testcase:
* add 'NM_CONTROLLED=no' to /etc/sysconfig/network-scripts/ifcfg-ABC
* sudo nmcli con reload
* ... NM asserts ...
We need to ref() 'existing' connection before nm_settings_connection_signal_remove(),
because the function unref()s ithe connection via connection_removed_cb().
Backtrace:
...
#4 0x00007fbcf0ea0cba in g_assertion_message_expr (domain=domain@entry=0x0,
file=file@entry=0x7fbcf4e5805d "nm-dbus-manager.c", line=line@entry=848,
func=func@entry=0x7fbcf4e585e0 <__FUNCTION__.15088> "nm_dbus_manager_unregister_object", expr=expr@entry=0x7fbcf4e5820b "G_IS_OBJECT (object)")
at gtestutils.c:2293
#5 0x00007fbcf4de69d9 in nm_dbus_manager_unregister_object (
self=0x7fbcf6fdc9c0, object=0x7fbcf70235c0) at nm-dbus-manager.c:848
#6 0x00007fbcf4dd6a23 in nm_settings_connection_signal_remove (
self=<optimized out>) at settings/nm-settings-connection.c:1541
#7 0x00007fbce6fee884 in connection_new_or_changed (
self=self@entry=0x7fbcf7006f80,
path=path@entry=0x7fbcf70c3f80 "/etc/sysconfig/network-scripts/ifcfg-ABC",
existing=existing@entry=0x7fbcf70235c0,
out_old_path=out_old_path@entry=0x7fff2b7b8988) at plugin.c:327
#8 0x00007fbce6feeca2 in read_connections (plugin=0x7fbcf7006f80)
at plugin.c:453
#9 0x00007fbcf4dd8e98 in impl_settings_reload_connections (
self=0x7fbcf6fd98c0, context=0x7fbcf70bcb30) at settings/nm-settings.c:1262
...
diff --git a/src/settings/plugins/ifcfg-rh/plugin.c b/src/settings/plugins/ifcfg-rh/plugin.c
index dbfc496..5cd24b0 100644
--- a/src/settings/plugins/ifcfg-rh/plugin.c
+++ b/src/settings/plugins/ifcfg-rh/plugin.c
@@ -320,6 +320,7 @@ connection_new_or_changed (SCPluginIfcfg *self,
if (new_unmanaged) {
if (!old_unmanaged) {
+ g_object_ref (existing);
/* Unexport the connection by telling the settings service it's
* been removed, and notify the settings service by signalling that
* unmanaged specs have changed.
@@ -331,6 +332,7 @@ connection_new_or_changed (SCPluginIfcfg *self,
g_object_set (existing, NM_IFCFG_CONNECTION_UNMANAGED, new_unmanaged, NULL);
g_signal_emit_by_name (self, NM_SYSTEM_CONFIG_INTERFACE_UNMANAGED_SPECS_CHANGED);
+ g_object_unref (existing);
}
} else {
if (old_unmanaged) { /* now managed */