Bug#941283: libvte: terminal crashes after a VTE error

[François Gannaz]

Package: libvte-2.91-0
Version: 0.58.0-1
Severity: important
File: libvte

Dear maintainer,

since last week, I've seen several terminal windows crash, with
gnome-terminal (official Debian testing) and roxterm (unofficial).
This happened on two computers, both using Debian testing and the same
terminal emulators. The WM is XMonad (tiling WM).

Unfortunately, I haven't seen any common cause. I've never had a crash
while typing. When I switch to a virtual desktop, the terminal windows
are gone or disappear immediately.

I saw nothing relevant in the logs, except for the last crash. From
journalctl:

sept. 27 20:37:45 org.gnome.Terminal[1063]: **
sept. 27 20:37:45 org.gnome.Terminal[1063]:t
VTE:ERROR:../src/vte.cc:555:void
vte::terminal::Terminal::set_hard_wrapped(vte::grid::row_t): assertion
failed (row < m_screen->insert_delta + m_row_count): (3091 < 3091)
sept. 27 20:37:45 sudo[6290]: pam_unix(sudo:session): session closed for
user root

I'd be glad to provide any detail you'd like.

Thanks

-- System Information:
Debian Release: bullseye/sid
  APT prefers testing
  APT policy: (990, 'testing'), (600, 'stable'), (50, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.2.0-2-amd64 (SMP w/4 CPU cores)
Kernel taint flags: TAINT_WARN
Locale: LANG=fr_FR.utf8, LC_CTYPE=fr_FR.utf8 (charmap=UTF-8),
LANGUAGE=fr_FR.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages libvte-2.91-0:amd64 depends on:
ii  libatk1.0-0          2.34.0-1
ii  libc6                2.29-1
ii  libcairo2            1.16.0-4
ii  libfribidi0          1.0.5-3.1
ii  libglib2.0-0         2.60.6-2
ii  libgnutls30          3.6.9-5
ii  libgtk-3-0           3.24.11-1
ii  libpango-1.0-0       1.42.4-7
ii  libpangocairo-1.0-0  1.42.4-7
ii  libpcre2-8-0         10.32-5+b1
ii  libstdc++6           9.2.1-8
ii  libvte-2.91-common   0.58.0-1
ii  zlib1g               1:1.2.11.dfsg-1+b1

libvte-2.91-0:amd64 recommends no packages.

libvte-2.91-0:amd64 suggests no packages.

-- no debconf information