wpasupplicant seg faults couple seconds after starting

[Aapo Rantalainen]

wpasupplcant: 1.0-2ubuntu5

Very often I see in dmesg:
wpa_supplicant[759]: segfault at 58 ip 080d57f6 sp bfa82140 error 4 in wpa_supplicant[8048000+102000]

I started wpa_supplicant inside gdb and here is backtrace:

Program received signal SIGSEGV, Segmentation fault.
wpas_dbus_getter_current_auth_mode (iter=0xbffff4c8, error=0xbffff4b8,
    user_data=0x8150258) at dbus/dbus_new_handlers.c:2598
2598 auth_mode = wpa_key_mgmt_txt(wpa_s->key_mgmt,
(gdb) bt
#0 wpas_dbus_getter_current_auth_mode (iter=0xbffff4c8, error=0xbffff4b8,
    user_data=0x8150258) at dbus/dbus_new_handlers.c:2598
#1 0x080ce980 in put_changed_properties (obj_dsc=obj_dsc@entry=0x815e760,
    interface=0x81239e8 "fi.w1.wpa_supplicant1.Interface",
    dict_iter=dict_iter@entry=0xbffff588, clear_changed=clear_changed@entry=0)
    at dbus/dbus_new_helpers.c:641
#2 0x080cf04e in do_send_prop_changed_signal (obj_dsc=0x815e760,
    interface=0x81239e8 "fi.w1.wpa_supplicant1.Interface",
    path=0x815e788 "/fi/w1/wpa_supplicant1/Interfaces/1", con=0x814cec8)
    at dbus/dbus_new_helpers.c:687
#3 send_prop_changed_signal (obj_dsc=0x815e760,
    interface=0x81239e8 "fi.w1.wpa_supplicant1.Interface",
    path=0x815e788 "/fi/w1/wpa_supplicant1/Interfaces/1", con=0x814cec8)
    at dbus/dbus_new_helpers.c:760
#4 wpa_dbus_flush_object_changed_properties (con=0x814cec8,
    path=0x815e788 "/fi/w1/wpa_supplicant1/Interfaces/1")
    at dbus/dbus_new_helpers.c:855
#5 0x0805805b in eloop_run () at ../src/utils/eloop.c:554
#6 0x080e101e in wpa_supplicant_run (global=global@entry=0x814c6d0)
    at wpa_supplicant.c:2723
#7 0x08050085 in main (argc=2, argv=0xbffff794) at main.c:279

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.