wpa_supplicant crashed with SIGSEGV

[Alexander Razumov]

SIGSEGV occurs on every start of my system

Logs:
марта 17 18:52:54 x250 systemd[1]: Started WPA supplicant.
марта 17 18:52:54 x250 wpa_supplicant[1017]: Successfully initialized wpa_supplicant
марта 17 18:52:54 x250 wpa_supplicant[1017]: dbus: wpa_dbus_get_object_properties: failed to get object properties: (none) none
марта 17 18:52:54 x250 wpa_supplicant[1017]: dbus: Failed to construct signal
марта 17 18:52:54 x250 wpa_supplicant[1017]: Could not read interface p2p-dev-wlp3s0 flags: No such device
марта 17 18:53:01 x250 wpa_supplicant[1017]: wlp3s0: SME: Trying to authenticate with 10:7b:ef:55:c9:20 (SSID='Skyth' freq=2457 MHz)
марта 17 18:53:01 x250 wpa_supplicant[1017]: wlp3s0: Trying to associate with 10:7b:ef:55:c9:20 (SSID='Skyth' freq=2457 MHz)
марта 17 18:53:01 x250 wpa_supplicant[1017]: wlp3s0: Associated with 10:7b:ef:55:c9:20
марта 17 18:53:02 x250 wpa_supplicant[1017]: wlp3s0: WPA: Key negotiation completed with 10:7b:ef:55:c9:20 [PTK=CCMP GTK=CCMP]
марта 17 18:53:02 x250 wpa_supplicant[1017]: wlp3s0: CTRL-EVENT-CONNECTED - Connection to 10:7b:ef:55:c9:20 completed [id=0 id_str=]

ernado@x250:~$ apt-cache policy wpasupplicant
wpasupplicant:
  Installed: 2.4-0ubuntu6
  Candidate: 2.4-0ubuntu6
  Version table:
 *** 2.4-0ubuntu6 500
        500 http://mirror.yandex.ru/ubuntu xenial/main amd64 Packages
        100 /var/lib/dpkg/status

ernado@x250:~$ lsb_release -rd
Description: Ubuntu Xenial Xerus (development branch)
Release: 16.04

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: wpasupplicant 2.4-0ubuntu6
ProcVersionSignature: Ubuntu 4.4.0-13.29-generic 4.4.5
Uname: Linux 4.4.0-12-generic x86_64
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
Date: Mon Mar 14 04:11:44 2016
ExecutablePath: /sbin/wpa_supplicant
InstallationDate: Installed on 2016-02-27 (18 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160227)
ProcCmdline: /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
Signal: 11
SourcePackage: wpa
StacktraceTop:
 ?? ()
 ?? ()
 ?? ()
 ?? ()
 ?? ()
Title: wpa_supplicant crashed with SIGSEGV
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:
 radio_remove_works (wpa_s=0x56139e27ad20, type=0x0, remove_all=0) at wpa_supplicant.c:3741
 wpa_supplicant_event (ctx=0x56139e27ad20, event=EVENT_INTERFACE_DISABLED, data=0x0) at events.c:3556
 eloop_run () at ../src/utils/eloop.c:993
 wpa_supplicant_run (global=0x56139e246e30) at wpa_supplicant.c:4646
 main (argc=<optimized out>, argv=<optimized out>) at main.c:333

[Alexander Razumov (ernado)]

Unable to reproduce anymore after all updates and
"sudo usermod -a -G dip,dialout $(whoami)"

Issue could be related to Sierra Wireless EM7345 4G LTE driver and fprint daemon.
I've removed fprint and ran usermod command, after that i'm unable to reproduce bug.

Could be related:
http://askubuntu.com/questions/580167/wwan-modem-disabeling-by-itself-ubuntu-14-10-lenovo-t440s-sierra-wireless-em7