[Bug 1503596] Re: systemd-logind crashed with SIGSEGV in strlen()

[Apport retracing service]

*** This bug is a duplicate of bug 1502626 ***
    https://bugs.launchpad.net/bugs/1502626

Thank you for taking the time to report this crash and helping to make
this software better.  This particular crash has already been reported
and is a duplicate of bug #1502626, so is being marked as such.  Please
look at the other bug report to see if there is any missing information
that you can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report.  Please continue to report any other bugs you may
find.

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** This bug has been marked a duplicate of private bug 1502626

** Information type changed from Private to Public

** Tags removed: need-amd64-retrace

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https://bugs.launchpad.net/bugs/1503596

Title:
  systemd-logind crashed with SIGSEGV in strlen()

Status in systemd package in Ubuntu:
  New

Bug description:
  Recently configured Kerberos / pam_sssd for authentication (configured
  to use either kerberos or local database for authentication because
  it's a laptop and is sometimes away from its home network).

  Got this login after installing the host keytab and restarting the
  system.

  Running Ubuntu 15.10 Wily Werewolf (last updated 2-3 days ago).

  ProblemType: Crash
  DistroRelease: Ubuntu 15.10
  Package: systemd 225-1ubuntu5
  ProcVersionSignature: Ubuntu 4.2.0-12.14-generic 4.2.1
  Uname: Linux 4.2.0-11-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.19-0ubuntu1
  Architecture: amd64
  Date: Wed Oct  7 10:14:29 2015
  ExecutablePath: /lib/systemd/systemd-logind
  InstallationDate: Installed on 2015-09-12 (25 days ago)
  InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150911)
  MachineType: Acer Aspire V5-132
  ProcCmdline: /lib/systemd/systemd-logind
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-12-generic.efi.signed root=UUID=0b14d4b3-4f10-43f7-a110-b93419cc7104 ro noprompt persistent quiet splash vt.handoff=7
  SegvAnalysis:
   Segfault happened at: 0x7f44fa1c16fa <strlen+42>:	movdqu (%rax),%xmm12
   PC (0x7f44fa1c16fa) ok
   source "(%rax)" (0x55e5c6000000) not located in a known VMA region (needed readable region)!
   destination "%xmm12" ok
  SegvReason: reading unknown VMA
  Signal: 11
  SourcePackage: systemd
  StacktraceTop:
   strlen () at ../sysdeps/x86_64/strlen.S:106
   __GI___strdup (s=0x55e5c6000000 <error: Cannot access memory at address 0x55e5c6000000>) at strdup.c:41
   ?? ()
   ?? ()
   ?? ()
  Title: systemd-logind crashed with SIGSEGV in strlen()
  UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups:
   
  dmi.bios.date: 09/04/2013
  dmi.bios.vendor: Phoenix Technologies Ltd.
  dmi.bios.version: V2.05
  dmi.board.name: Angel_CY
  dmi.board.vendor: Acer
  dmi.board.version: V2.05
  dmi.chassis.type: 9
  dmi.chassis.vendor: Acer
  dmi.chassis.version: V2.05
  dmi.modalias: dmi:bvnPhoenixTechnologiesLtd.:bvrV2.05:bd09/04/2013:svnAcer:pnAspireV5-132:pvrV2.05:rvnAcer:rnAngel_CY:rvrV2.05:cvnAcer:ct9:cvrV2.05:
  dmi.product.name: Aspire V5-132
  dmi.product.version: V2.05
  dmi.sys.vendor: Acer

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