gnome-calendar crashed with SIGSEGV in pvl_head()

[Fabio Rizzioli]

Sometimes login fails

ProblemType: Crash
DistroRelease: Ubuntu 17.10
Package: gnome-calendar 3.26.2-1
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.20.7-0ubuntu3
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sat Oct 21 15:20:37 2017
ExecutablePath: /usr/bin/gnome-calendar
InstallationDate: Installed on 2017-05-19 (154 days ago)
InstallationMedia: Ubuntu 17.04 "Zesty Zapus" - Release amd64 (20170412)
ProcCmdline: /usr/bin/gnome-calendar --gapplication-service
ProcEnviron:
 SHELL=/bin/bash
 XDG_RUNTIME_DIR=<set>
 PATH=(custom, no user)
 LANG=it_IT.UTF-8
SegvAnalysis:
 Segfault happened at: 0x7f1e4a9482e0 <pvl_head>: mov 0x8(%rdi),%rax
 PC (0x7f1e4a9482e0) ok
 source "0x8(%rdi)" (0x00000008) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gnome-calendar
StacktraceTop:
 pvl_head () from /usr/lib/x86_64-linux-gnu/libical.so.2
 icalproperty_get_first_parameter () from /usr/lib/x86_64-linux-gnu/libical.so.2
 e_cal_component_alarm_get_trigger () from /usr/lib/x86_64-linux-gnu/libecal-1.2.so.19
 get_alarm_trigger_minutes ()
 ?? ()
Title: gnome-calendar crashed with SIGSEGV in pvl_head()
UpgradeStatus: Upgraded to artful on 2017-10-20 (0 days ago)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Apport retracing service (apport)]

StacktraceTop:
 pvl_head (L=0x0) at ./src/libical/pvl.c:484
 icalproperty_get_first_parameter (p=0x564db9c38bc0, kind=ICAL_VALUE_PARAMETER) at ./src/libical/icalproperty.c:750
 e_cal_component_alarm_get_trigger (alarm=alarm@entry=0x564dba053410, trigger=trigger@entry=0x7ffcf635da50) at ./src/calendar/libecal/e-cal-component.c:6080
 get_alarm_trigger_minutes (event=event@entry=0x564db97946a0, alarm=alarm@entry=0x564dba053410) at ../src/gcal-utils.c:1064
 remove_button_clicked (button=<optimized out>, row=0x564db982aef0) at ../src/gcal-edit-dialog.c:930

[Sebastien Bacher (seb128)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. Please answer these questions:
* Is this reproducible?
* If so, what specific steps should we take to recreate this bug?

This will help us to find and resolve the problem.

[Launchpad Janitor (janitor)]

[Expired for gnome-calendar (Ubuntu) because there has been no activity for 60 days.]