systemd-logind crashed with SIGSEGV in strlen()

[David Oxland]

Really not sure what caused this crash except that the previous shutdown was unusual.
 I've taken to do more use of terminal lately and when I ( sudo shutdown 2 min) last time got a message about "not being able to block"? System login failed three times today and finally booted me over to bug report.

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: systemd 225-1ubuntu4
ProcVersionSignature: Ubuntu 4.2.0-7.7-generic 4.2.0
Uname: Linux 4.2.0-7-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.18.1-0ubuntu1
Architecture: amd64
Date: Fri Sep 11 23:28:39 2015
ExecutablePath: /lib/systemd/systemd-logind
InstallationDate: Installed on 2015-01-29 (225 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
MachineType: LENOVO 10117
ProcCmdline: /lib/systemd/systemd-logind
ProcEnviron:
 LANG=en_CA.UTF-8
 LANGUAGE=en_CA:en
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.2.0-7-generic root=UUID=94709fac-8bfa-41bf-8d29-24abdd9f77cc ro drm.debug=0xe plymouth:debug
SegvAnalysis:
 Segfault happened at: 0x7f12e95876fa <strlen+42>: movdqu (%rax),%xmm12
 PC (0x7f12e95876fa) ok
 source "(%rax)" (0x561a80000000) 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=0x561a80000000 <error: Cannot access memory at address 0x561a80000000>) at strdup.c:41
 ?? ()
 ?? ()
 ?? ()
Title: systemd-logind crashed with SIGSEGV in strlen()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 11/05/2013
dmi.bios.vendor: LENOVO
dmi.bios.version: I7KT31AUS
dmi.board.vendor: LENOVO
dmi.board.version: 31900058 STD
dmi.chassis.type: 3
dmi.chassis.vendor: LENOVO
dmi.modalias: dmi:bvnLENOVO:bvrI7KT31AUS:bd11/05/2013:svnLENOVO:pn10117:pvrLenovoH535:rvnLENOVO:rn:rvr31900058STD:cvnLENOVO:ct3:cvr:
dmi.product.name: 10117
dmi.product.version: Lenovo H535
dmi.sys.vendor: LENOVO

[Apport retracing service (apport)]

This crash has the same stack trace characteristics as bug #1495178. However, the latter was already fixed in an earlier package version than the one in this report. This might be a regression or because the problem is in a dependent package.

[Apport retracing service (apport)]

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 #1495178, 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.