plymouthd crashed with SIGSEGV in script_obj_deref_direct()

[Xavier Farret]

crash at startup, after just login

ProblemType: Crash
DistroRelease: Ubuntu 18.04
Package: plymouth 0.9.3-1ubuntu6
ProcVersionSignature: Ubuntu 4.15.0-15.16-generic 4.15.15
Uname: Linux 4.15.0-15-generic x86_64
ApportVersion: 2.20.9-0ubuntu5
Architecture: amd64
Date: Tue Apr 17 14:23:27 2018
DefaultPlymouth: /usr/share/plymouth/themes/ubuntu-gnome-logo/ubuntu-gnome-logo.plymouth
ExecutablePath: /sbin/plymouthd
InstallationDate: Installed on 2018-04-16 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Alpha amd64 (20180409)
MachineType: FUJITSU LIFEBOOK U757
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-15-generic.efi.signed root=UUID=8f71b12f-121c-4407-8496-594f40da88be ro quiet splash vt.handoff=1
ProcCmdline: @sbin/plymouthd --mode=boot --pid-file=/run/plymouth/pid --attach-to-session
ProcEnviron:
 LANG=fr_FR.UTF-8
 PATH=(custom, no user)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-15-generic.efi.signed root=UUID=8f71b12f-121c-4407-8496-594f40da88be ro quiet splash vt.handoff=1
SegvAnalysis:
 Segfault happened at: 0x7f0469855480 <script_obj_deref_direct>: cmpl $0x1,(%rdi)
 PC (0x7f0469855480) ok
 source "$0x1" ok
 destination "(%rdi)" (0x2d412d494d44482d) not located in a known VMA region (needed writable region)!
SegvReason: writing unknown VMA
Signal: 11
SourcePackage: plymouth
StacktraceTop:
 script_obj_deref_direct () from /usr/lib/x86_64-linux-gnu/plymouth/script.so
 script_obj_as_custom () from /usr/lib/x86_64-linux-gnu/plymouth/script.so
 script_execute_object () from /usr/lib/x86_64-linux-gnu/plymouth/script.so
 script_lib_plymouth_on_display_normal () from /usr/lib/x86_64-linux-gnu/plymouth/script.so
 ?? () from /usr/lib/x86_64-linux-gnu/plymouth/script.so
TextPlymouth: /usr/share/plymouth/themes/ubuntu-gnome-text/ubuntu-gnome-text.plymouth
Title: plymouthd crashed with SIGSEGV in script_obj_deref_direct()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:

dmi.bios.date: 11/07/2017
dmi.bios.vendor: FUJITSU // Insyde Software Corp.
dmi.bios.version: Version 1.18
dmi.board.name: FJNB2A5
dmi.board.vendor: FUJITSU
dmi.board.version: K3
dmi.chassis.type: 10
dmi.chassis.vendor: FUJITSU
dmi.chassis.version: LIFEBOOK U757
dmi.modalias: dmi:bvnFUJITSU//InsydeSoftwareCorp.:bvrVersion1.18:bd11/07/2017:svnFUJITSU:pnLIFEBOOKU757:pvr10601736746:rvnFUJITSU:rnFJNB2A5:rvrK3:cvnFUJITSU:ct10:cvrLIFEBOOKU757:
dmi.product.family: LIFEBOOK-FTS
dmi.product.name: LIFEBOOK U757
dmi.product.version: 10601736746
dmi.sys.vendor: FUJITSU

[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 #1745406, 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.