NetworkManager crashed with SIGSEGV in _dbus_string_init_const()

After getting connected, or by eth0 or by wlan0, to my router, I try to establish a openVPN.
At first it establishes then it gives the error (taken from syslog):

Jul 31 12:27:15 rteixeira-laptop NetworkManager[5224]: <info> VPN connection 'xxxxxxxxxxx' (IP Config Get) complete.
Jul 31 12:27:15 rteixeira-laptop NetworkManager[5224]: <info> Policy set 'Auto Ethernet' (eth0) as default for IPv4 routing and DNS.
Jul 31 12:27:15 rteixeira-laptop NetworkManager[5224]: <info> DNS: starting dnsmasq...
Jul 31 12:27:15 rteixeira-laptop dnsmasq[6137]: cannot access directory /etc/NetworkManager/dnsmasq.d: No such file or directory
Jul 31 12:27:15 rteixeira-laptop dnsmasq[6137]: FAILED to start up
Jul 31 12:27:15 rteixeira-laptop kernel: [ 757.341874] NetworkManager[5224]: segfault at 726f7071 ip b719c616 sp bf965714 error 4 in libc-2.15.so[b711a000+19f000]
Jul 31 12:27:15 rteixeira-laptop NetworkManager[6141]: <info> NetworkManager (version 0.9.5.96) is starting...

ProblemType: Crash
DistroRelease: Ubuntu 12.10
Package: network-manager 0.9.6.0~git201207271115.edb85e9-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-6.6-generic 3.5.0
Uname: Linux 3.5.0-6-generic i686
ApportVersion: 2.4-0ubuntu6
Architecture: i386
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found.
CrashCounter: 1
Date: Tue Jul 31 12:22:41 2012
ExecutablePath: /usr/sbin/NetworkManager
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta i386 (20110330)
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
ProcCmdline: NetworkManager
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=linux
 PATH=(custom, no user)
 LANG=en_US.UTF-8
RfKill:

SegvAnalysis:
 Segfault happened at: 0xb7116616: movdqu (%edi),%xmm1
 PC (0xb7116616) ok
 source "(%edi)" (0x726f7069) not located in a known VMA region (needed readable region)!
 destination "%xmm1" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: network-manager
StacktraceTop:
 ?? () from /lib/i386-linux-gnu/libc.so.6
 ?? () from /lib/i386-linux-gnu/libdbus-1.so.3
 ?? () from /lib/i386-linux-gnu/libdbus-1.so.3
 dbus_message_iter_append_basic () from /lib/i386-linux-gnu/libdbus-1.so.3
 dbus_message_append_args_valist () from /lib/i386-linux-gnu/libdbus-1.so.3
Title: NetworkManager crashed with SIGSEGV in dbus_message_iter_append_basic()
UpgradeStatus: Upgraded to quantal on 2012-07-30 (0 days ago)
UserGroups:

nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH
 eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/1
 wlan0 802-11-wireless connected /org/freedesktop/NetworkManager/Devices/0
nmcli-nm:
 RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN
 running 0.9.5.96 connected enabled enabled enabled enabled disabled