glade crashed with SIGSEGV in glade_project_get_widget_by_name()

[Olivier Tilloy]

I opened data/gtkbuilder/main.ui¹ from the software-properties project with glade, and glade crashed instantly. This is 100% reproducible.

¹ https://git.launchpad.net/software-properties/tree/data/gtkbuilder/main.ui

ProblemType: Crash
DistroRelease: Ubuntu 20.04
Package: glade 3.22.1-4
ProcVersionSignature: Ubuntu 5.4.0-9.12-generic 5.4.3
Uname: Linux 5.4.0-9-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu15
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Fri Jan 17 17:16:55 2020
EcryptfsInUse: Yes
ExecutablePath: /usr/bin/glade
InstallationDate: Installed on 2016-07-02 (1293 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
ProcCmdline: glade data/gtkbuilder/main.ui
SegvAnalysis:
 Segfault happened at: 0x7fbd56b6659e <__strcmp_sse2_unaligned+30>: movdqu (%rdi),%xmm1
 PC (0x7fbd56b6659e) ok
 source "(%rdi)" (0x00000000) not located in a known VMA region (needed readable region)!
 destination "%xmm1" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: glade
StacktraceTop:
 glade_project_get_widget_by_name () at /usr/lib/x86_64-linux-gnu/libgladeui-2.so.6
 () at /usr/lib/x86_64-linux-gnu/libgladeui-2.so.6
 glade_property_class_make_gvalue_from_string () at /usr/lib/x86_64-linux-gnu/libgladeui-2.so.6
 () at /usr/lib/x86_64-linux-gnu/libgladeui-2.so.6
 glade_project_load_from_file () at /usr/lib/x86_64-linux-gnu/libgladeui-2.so.6
Title: glade crashed with SIGSEGV in glade_project_get_widget_by_name()
UpgradeStatus: Upgraded to focal on 2020-01-12 (5 days ago)
UserGroups: adm cdrom dialout dip libvirt libvirtd lpadmin lxd plugdev sambashare sbuild sudo wireshark
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StacktraceTop:
 glade_project_get_widget_by_name (project=project@entry=0x55bae351ba00, name=name@entry=0x55bae3d7f7e0 "label3") at glade-project.c:3618
 glade_property_class_make_object_from_string (string=0x55bae3d7f7e0 "label3", project=project@entry=0x55bae351ba00, property_class=<optimized out>) at glade-property-class.c:734
 glade_property_class_make_objects_from_string (project=0x55bae351ba00, string=<optimized out>, property_class=0x55bae454a6a0) at glade-property-class.c:756
 glade_property_class_make_gvalue_from_string (property_class=property_class@entry=0x55bae454a6a0, string=<optimized out>, project=project@entry=0x55bae351ba00) at glade-property-class.c:889
 glade_project_fix_object_props (project=0x55bae351ba00) at glade-project.c:1326