gnome-terminal-server crashed with SIGSEGV in g_utf8_pointer_to_offset()

[Martin Randau]

Gnome terminal just crashed, was moving pointer across window.

ProblemType: Crash
DistroRelease: Ubuntu 23.10
Package: gnome-terminal 3.49.92-2ubuntu1
ProcVersionSignature: Ubuntu 6.5.0-5.5-generic 6.5.0
Uname: Linux 6.5.0-5-generic x86_64
ApportVersion: 2.27.0-0ubuntu2
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Tue Sep 19 22:39:00 2023
ExecutablePath: /usr/libexec/gnome-terminal-server
InstallationDate: Installed on 2023-09-18 (1 days ago)
InstallationMedia: Ubuntu 23.10 "Mantic Minotaur" - Daily amd64 (20230918)
ProcCmdline: /usr/libexec/gnome-terminal-server
SegvAnalysis:
 Segfault happened at: 0x7f58c3c30180 <g_utf8_pointer_to_offset+48>: movzbl (%rsi),%ecx
 PC (0x7f58c3c30180) ok
 source "(%rsi)" (0x5646400b2000) not located in a known VMA region (needed readable region)!
 destination "%ecx" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: gnome-terminal
StacktraceTop:
 g_utf8_pointer_to_offset () at /lib/x86_64-linux-gnu/libglib-2.0.so.0
 ??? () at /lib/x86_64-linux-gnu/libvte-2.91.so.0
 ??? () at /lib/x86_64-linux-gnu/libvte-2.91.so.0
 ??? () at /lib/x86_64-linux-gnu/libvte-2.91.so.0
 ??? () at /lib/x86_64-linux-gnu/libgtk-3.so.0
Title: gnome-terminal-server crashed with SIGSEGV in g_utf8_pointer_to_offset()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sudo users
separator:

[Apport retracing service (apport)]

StacktraceTop:
 g_utf8_pointer_to_offset (str=<optimized out>, pos=<optimized out>) at ../../../glib/gutf8.c:423
 emit_text_changed_insert (len=<optimized out>, offset=0, text=<optimized out>, object=0x56463fea9a70) at ../src/vteaccess.cc:161
 emit_text_changed_insert (len=<optimized out>, offset=0, text=<optimized out>, object=0x56463fea9a70) at ../src/vteaccess.cc:152
 _vte_terminal_accessible_text_scrolled (accessible=0x56463fea9a70, howmuch=<optimized out>) at ../src/vteaccess.cc:651
 vte::terminal::Terminal::emit_text_scrolled (delta=-1, this=0x56463fda1d40) at ../src/vteinternal.hh:1163

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Nathan Teodosio (nteodosio)]

Yesterday I got crashes whenever I tried to maximize it or resize it.

I started Ubuntu on Wayland from SDDM though.

After I started it from GDM I no longer reproduce the problem, although
I rebooted in between so...

I didn't get a crash file in /var/crash. I attach the journal from
yesterday, filtered for gnome-terminal. You can see 3 segfaults, and I
think that is indeed the number of times I tried the terminal before
giving up on it.

[Egmont Koblinger (egmont-gmail)]

Looks the same as https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1052172.

If it's indeed the same, and if the analysis over there was correct, then this was a bug in package libvte-2.91-0 version 0.74.0-1 and is already fixed in version 0.74.0-2.