systemd-logind crashed with SIGSEGV in strlen()

[Andi Chandler]

Lots of problems caused after update from 15.04 to 15.10.

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: systemd 225-1ubuntu7
ProcVersionSignature: Ubuntu 4.2.0-15.18-generic 4.2.3
Uname: Linux 4.2.0-14-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.19.1-0ubuntu2
Architecture: amd64
Date: Thu Oct 8 17:39:35 2015
ExecutablePath: /lib/systemd/systemd-logind
ExecutableTimestamp: 1444057439
InstallationDate: Installed on 2014-08-26 (412 days ago)
InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Alpha amd64 (20140826)
MachineType: Dell Inc. OptiPlex 7010
ProcCmdline: /lib/systemd/systemd-logind
ProcCwd: /
ProcEnviron:
 LANG=en_GB.UTF-8
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-15-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash nomdmonddf nomdmonisw vt.handoff=7
SegvAnalysis:
 Segfault happened at: 0x7f8f7a9736fa <strlen+42>: movdqu (%rax),%xmm12
 PC (0x7f8f7a9736fa) ok
 source "(%rax)" (0x55e5ee000000) 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=0x55e5ee000000 <error: Cannot access memory at address 0x55e5ee000000>) at strdup.c:41
 ?? ()
 ?? ()
 ?? ()
SystemdDelta:
 [EXTENDED] /etc/systemd/system/display-manager.service → /lib/systemd/system/display-manager.service.d/xdiagnose.conf
 [EXTENDED] /lib/systemd/system/rc-local.service → /lib/systemd/system/rc-local.service.d/debian.conf
 [EXTENDED] /lib/systemd/system/systemd-timesyncd.service → /lib/systemd/system/systemd-timesyncd.service.d/disable-with-time-daemon.conf

 3 overridden configuration files found.
Title: systemd-logind crashed with SIGSEGV in strlen()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 03/25/2013
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A13
dmi.board.name: 0WR7PY
dmi.board.vendor: Dell Inc.
dmi.board.version: A01
dmi.chassis.type: 15
dmi.chassis.vendor: Dell Inc.
dmi.modalias: dmi:bvnDellInc.:bvrA13:bd03/25/2013:svnDellInc.:pnOptiPlex7010:pvr01:rvnDellInc.:rn0WR7PY:rvrA01:cvnDellInc.:ct15:cvr:
dmi.product.name: OptiPlex 7010
dmi.product.version: 01
dmi.sys.vendor: Dell Inc.

[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.