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[Launchpad Bug Tracker <1502717@xxxxxxxxxxxxxxxxxx>]

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

** Changed in: wpa (Ubuntu)
       Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1502717

Title:
  wpa_supplicant crashed with SIGSEGV in dbus_connection_dispatch()

Status in wpa package in Ubuntu:
  Confirmed

Bug description:
  wpa_supplicant crashed with SIGSEGV when removing kernel module
  brcmfmac.

  rsalveti@evapro:~$ lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu Wily Werewolf (development branch)
  Release:	15.10
  Codename:	wily

  Linux evapro 4.2.0-14-generic #16-Ubuntu SMP Fri Oct 2 05:14:57 UTC
  2015 x86_64 x86_64 x86_64 GNU/Linux

  MacBook Pro Retina 13' 12,1

  43557 Oct  4 18:02:56 evapro kernel: [   86.406354] usbcore: deregistering interface driver brcmfmac
  43558 Oct  4 18:02:57 evapro avahi-daemon[950]: Withdrawing workstation service for wlp3s0.
  43559 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  devices removed (path: /sys/devices/pci0000:00/0000:00:1c.2/0000:03:00.0/net/wlp3s0, iface: wlp3s0)
  43560 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  (wlp3s0): device state change: disconnected -> unmanaged (reason 'removed') [30 10 36]
  43561 Oct  4 18:02:57 evapro NetworkManager[936]: <warn>  (wlp3s0): failed to disable userspace IPv6LL address handling
  43562 Oct  4 18:02:57 evapro gnome-session[2190]: (nm-applet:2346): GLib-CRITICAL **: Source ID 190 was not found when attempting to remove it
  43563 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  radio killswitch /sys/devices/pci0000:00/0000:00:1c.2/0000:03:00.0/ieee80211/phy0/rfkill0 disappeared
  43564 Oct  4 18:02:57 evapro kernel: [   86.947963] show_signal_msg: 39 callbacks suppressed
  43565 Oct  4 18:02:57 evapro kernel: [   86.947968] wpa_supplicant[1330]: segfault at 0 ip 00007f835170fcba sp 00007fffc00140c8 error 4 in libc-2.21.so[7f8351670000+1c0000]
  43566 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  wpa_supplicant stopped
  43567 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  (wlx048d38ab601a): supplicant interface state: completed -> down
  43568 Oct  4 18:02:57 evapro NetworkManager[936]: (NetworkManager:936): GLib-CRITICAL **: Source ID 167 was not found when attempting to remove it
  43569 Oct  4 18:02:57 evapro NetworkManager[936]: <warn>  Failed to GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name :1.30 was not provided by any .service files: remove network.
  43570 Oct  4 18:02:57 evapro dbus[969]: [system] Activating via systemd: service name='fi.w1.wpa_supplicant1' unit='wpa_supplicant.service'
  43571 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  (wlx048d38ab601a): device state change: activated -> unavailable (reason 'supplicant-failed') [100 20 10]
  43572 Oct  4 18:02:57 evapro systemd[1]: Started WPA supplicant.
  43573 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  (wlx048d38ab601a): canceled DHCP transaction, DHCP client pid 1915
  43574 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  (wlx048d38ab601a): DHCPv4 state changed bound -> done
  43575 Oct  4 18:02:57 evapro avahi-daemon[950]: Withdrawing address record for 192.168.1.17 on wlx048d38ab601a.
  43576 Oct  4 18:02:57 evapro avahi-daemon[950]: Leaving mDNS multicast group on interface wlx048d38ab601a.IPv4 with address 192.168.1.17.
  43577 Oct  4 18:02:57 evapro avahi-daemon[950]: Interface wlx048d38ab601a.IPv4 no longer relevant for mDNS.
  43578 Oct  4 18:02:57 evapro avahi-daemon[950]: Withdrawing address record for fe80::68d:38ff:feab:601a on wlx048d38ab601a.
  43579 Oct  4 18:02:57 evapro avahi-daemon[950]: Leaving mDNS multicast group on interface wlx048d38ab601a.IPv6 with address fe80::68d:38ff:feab:601a.
  43580 Oct  4 18:02:57 evapro avahi-daemon[950]: Interface wlx048d38ab601a.IPv6 no longer relevant for mDNS.
  43581 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  Writing DNS information to /sbin/resolvconf
  43582 Oct  4 18:02:57 evapro dnsmasq[1607]: setting upstream servers from DBus
  43583 Oct  4 18:02:57 evapro dnsmasq[1607]: using nameserver fe80::e6f4:c6ff:fe0b:5c4d#53
  43584 Oct  4 18:02:57 evapro whoopsie[994]: [18:02:57] Cannot reach: https://daisy.ubuntu.com
  43585 Oct  4 18:02:57 evapro whoopsie[994]: [18:02:57] offline
  43586 Oct  4 18:02:57 evapro whoopsie[994]: [18:02:57] Cannot reach: https://daisy.ubuntu.com
  43587 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  Writing DNS information to /sbin/resolvconf
  43588 Oct  4 18:02:57 evapro dnsmasq[1607]: setting upstream servers from DBus
  43589 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  NetworkManager state is now CONNECTED_LOCAL
  43590 Oct  4 18:02:57 evapro NetworkManager[936]: <info>  NetworkManager state is now DISCONNECTED
  43591 Oct  4 18:02:57 evapro nm-dispatcher: Dispatching action 'down' for wlx048d38ab601a
  43592 Oct  4 18:02:57 evapro systemd[1]: wpa_supplicant.service: Main process exited, code=dumped, status=11/SEGV
  43593 Oct  4 18:02:57 evapro systemd[1]: wpa_supplicant.service: Unit entered failed state.
  43594 Oct  4 18:02:57 evapro systemd[1]: wpa_supplicant.service: Failed with result 'core-dump'.
  43595 Oct  4 18:02:58 evapro gnome-session[2190]: Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.
  43596 Oct  4 18:02:58 evapro org.freedesktop.Notifications[2012]: ** Message: resizing pixbuf to 44

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: wpasupplicant 2.4-0ubuntu2
  ProcVersionSignature: Ubuntu 4.2.0-14.16-generic 4.2.2
  Uname: Linux 4.2.0-14-generic x86_64
  ApportVersion: 2.19-0ubuntu1
  Architecture: amd64
  Date: Sun Oct  4 18:02:57 2015
  ExecutablePath: /sbin/wpa_supplicant
  ExecutableTimestamp: 1439920046
  InstallationDate: Installed on 2015-09-20 (14 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150919)
  ProcCmdline: /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
  ProcCwd: /
  ProcEnviron:
   LANG=en_US.UTF-8
   PATH=(custom, no user)
  SegvAnalysis:
   Segfault happened at: 0x7f835170fcba <__strcmp_sse2_unaligned+26>:	movdqu (%rdi),%xmm1
   PC (0x7f835170fcba) ok
   source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
   destination "%xmm1" ok
  SegvReason: reading NULL VMA
  Signal: 11
  SourcePackage: wpa
  StacktraceTop:
   ?? ()
   ?? ()
   ?? () from /lib/x86_64-linux-gnu/libdbus-1.so.3
   dbus_connection_dispatch () from /lib/x86_64-linux-gnu/libdbus-1.so.3
   ?? ()
  Title: wpa_supplicant crashed with SIGSEGV in dbus_connection_dispatch()
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:

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