Comment 6 for bug 2048906

I can confirm that ngspice from jammy-proposed has fixed the bug for me.

Test done:

Install ngspice on a jammy installation.
create the test.netlist file with the content from the testplan
execute ngspice
run "source test.netlist" on the ngspice prompt.
confirm that ngspice fails with coredump.

Add jammy-proposed to apt sources
update ngspice from jammy-proposed
run "source test.netlist" on the ngspice prompt.
confirm that ngspice does not fail and prints the title "Circuit: KiCad schematic".

Test result: the issue with ngspice has been fixed.

Package tested:

$ apt-cache policy ngspice
ngspice:
  Installed: 36+ds-1ubuntu0.1
  Candidate: 36+ds-1ubuntu0.1
  Version table:
 *** 36+ds-1ubuntu0.1 500
        500 http://gb.archive.ubuntu.com/ubuntu jammy-proposed/universe amd64 Packages
        100 /var/lib/dpkg/status
     36+ds-1 500
        500 http://gb.archive.ubuntu.com/ubuntu jammy/universe amd64 Packages