gedit crashed with SIGSEGV in gd_tagged_entry_remove_tag() when closing a file or searching through the text of one

[Thomas A. F. Thorne]

I had large number of files open (more than a dozen) and was searching through each one for test to replace. I was saving and closing each file after I had finished my editing. Then I would select the next file to work on from the top tab bar.

I had two Gedit windows open. One of them only a had a single file in it.

Both gedit windows turned grey, eventually close and then the crash report was posted.

ProblemType: Crash
DistroRelease: Ubuntu 16.04
Package: gedit 3.18.3-0ubuntu4
ProcVersionSignature: Ubuntu 4.4.0-72.93-generic 4.4.49
Uname: Linux 4.4.0-72-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CurrentDesktop: Unity
Date: Wed Jul 19 16:02:04 2017
ExecutablePath: /usr/bin/gedit
InstallationDate: Installed on 2015-03-12 (859 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
ProcCmdline: gedit
ProcEnviron:
 PATH=(custom, user)
 SHELL=/bin/bash
 LANG=en_GB.UTF-8
 LANGUAGE=en_GB:en
 XDG_RUNTIME_DIR=<set>
SegvAnalysis:
 Segfault happened at: 0x7f6f51107b57 <gd_tagged_entry_remove_tag+7>: mov 0x28(%rdi),%rax
 PC (0x7f6f51107b57) ok
 source "0x28(%rdi)" (0x00000028) not located in a known VMA region (needed readable region)!
 destination "%rax" ok
SegvReason: reading NULL VMA
Signal: 11
SourcePackage: gedit
StacktraceTop:
 gd_tagged_entry_remove_tag () from /usr/lib/x86_64-linux-gnu/gedit/libgedit.so
 ?? () from /usr/lib/x86_64-linux-gnu/gedit/libgedit.so
 g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
Title: gedit crashed with SIGSEGV in gd_tagged_entry_remove_tag()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dialout dip lpadmin lxd mock plugdev sambashare sudo wireshark

[Apport retracing service (apport)]

StacktraceTop:
 gd_tagged_entry_remove_tag (self=0x0, tag=0x0) at libgd/gd-tagged-entry.c:1084
 update_entry_tag (frame=0x58a8720) at gedit/gedit-view-frame.c:656
 update_entry_tag_idle_cb (frame=0x58a8720) at gedit/gedit-view-frame.c:686
 g_main_context_dispatch () from /tmp/apport_sandbox_s4igHq/lib/x86_64-linux-gnu/libglib-2.0.so.0
 g_main_context_iterate.isra () from /tmp/apport_sandbox_s4igHq/lib/x86_64-linux-gnu/libglib-2.0.so.0

[Thomas A. F. Thorne (tafthorne)]

Eyeballed the attachments and cannot see anything sensitive in them. Making this public instead of private.