/usr/bin/caja:ERROR:caja-file.c:505:caja_file_new_from_filename: assertion failed: (filename[0] != '\\0')

[errors.ubuntu.com bug bridge]

The Ubuntu Error Tracker has been receiving reports about a problem regarding caja. This problem was most recently seen with package version 1.12.7-1, the problem page at https://errors.ubuntu.com/problem/313a62d8e912075890952646b2f4f7e7c686cfa4 contains more details, including versions of packages affected, stacktrace or traceback, and individual crash reports.
If you do not have access to the Ubuntu Error Tracker you can request it at http://forms.canonical.com/reports/.

[Martin Wimpress  (flexiondotorg)]

This error has not occurred since Caja was ported to GTK3

[Marcos K (g-ubuntu-com-y)]

lsb_release -a; uname -a;
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal

Linux gl65 5.4.0-121-generic #137-Ubuntu SMP Wed Jun 15 13:33:07 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux

These logs are still repeating *every second*.
I would say it's a critical bug due to the disk usage DoS, quickly consuming all available disk space leaving zero free, causing overall server failure.

==> /var/log/apport.log <==
ERROR: apport (pid 1519645) Sat Jul 9 09:22:26 2022: called for pid 1519626, signal 6, core limit 0, dump mode 1
ERROR: apport (pid 1519645) Sat Jul 9 09:22:26 2022: executable: /usr/bin/caja (command line "/usr/bin/caja --sm-client-id 10ec591269138111da159843837757209000000021220121 --sm-client-state-file /home/master/.config/session-state/caja-1653708499.desktop")
ERROR: apport (pid 1519645) Sat Jul 9 09:22:27 2022: debug: session gdbus call: (true,)

ERROR: apport (pid 1519645) Sat Jul 9 09:22:27 2022: apport: report /var/crash/_usr_bin_caja.1000.crash already exists and unseen, skipping to avoid disk usage DoS

==> /var/log/syslog <==
Jul 9 09:22:28 gl65 caja[1519650]: Failed to register client: GDBus.Error:org.gnome.SessionManager.AlreadyRegistered: Unable to register client
Jul 9 09:22:28 gl65 caja: [N-A] Caja-Actions Tracker 1.8.3 initializing...
Jul 9 09:22:28 gl65 /usr/lib/gdm3/gdm-x-session[1519650]: Initializing caja-open-terminal extension
Jul 9 09:22:28 gl65 caja: [FMA] FileManager-Actions Menu Extender 3.4 initializing...
Jul 9 09:22:28 gl65 caja: [FMA] FileManager-Actions Tracker 3.4 initializing...
Jul 9 09:22:28 gl65 /usr/lib/gdm3/gdm-x-session[1519650]: Initializing caja-xattr-tags extension
Jul 9 09:22:28 gl65 /usr/lib/gdm3/gdm-x-session[1519650]: Initializing caja-image-converter extension
Jul 9 09:22:28 gl65 caja: [N-A] Caja-Actions Menu Extender 1.8.3 initializing...
Jul 9 09:22:28 gl65 /usr/lib/gdm3/gdm-x-session[1519650]: **
Jul 9 09:22:28 gl65 /usr/lib/gdm3/gdm-x-session[1519650]: ERROR:caja-file.c:516:caja_file_new_from_filename: assertion failed: filename[0] != '\0')
Jul 9 09:22:28 gl65 /usr/lib/gdm3/gdm-x-session[1519650]: Bail out! ERROR:caja-file.c:516:caja_file_new_from_filename: assertion failed: filename[0] != '\0')