Description of problem:

Version-Release number of selected component (if applicable):
lldpad-1.0.1-19.git036e314.el8.x86_64

How reproducible:

• always

Steps to Reproduce:
1. get a RHEL-8.9 machine
2. start the lldpad service
3. run the lldptool program
4. write the quit word and hit the enter key

Actual results:

1. service lldpad start
   Redirecting to /bin/systemctl start lldpad.service
2. service lldpad status
   Redirecting to /bin/systemctl status lldpad.service
   ● lldpad.service - Link Layer Discovery Protocol Agent Daemon.
   Loaded: loaded (/usr/lib/systemd/system/lldpad.service; disabled; vendor preset: disabled)
   Active: active (running) since Tue 2023-06-20 04:52:28 EDT; 3s ago
   Main PID: 7750 (lldpad)
   Tasks: 1 (limit: 11126)
   Memory: 280.0K
   CGroup: /system.slice/lldpad.service
   └─7750 /usr/sbin/lldpad -t

Jun 20 04:52:28 ci-vm-10-0-137-46.hosted.upshift.rdu2.redhat.com systemd[1]: Started Link Layer D…..
Hint: Some lines were ellipsized, use -l to show in full.

1. lldptool
   lldptool v1.1.0
   Copyright (c) 2007-2010, Intel Corporation

Substantially modified from: hostapd_cli v 0.5.7
Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi> and contributors

This program is free software. You can distribute it and/or modify it
under the terms of the GNU General Public License version 2.

Interactive mode

> quit
Segmentation fault (core dumped)

1. echo $?
   139
2. coredumpctl info -1
   PID: 7762 (lldptool)
   UID: 0 (root)
   GID: 0 (root)
   Signal: 11 (SEGV)
   Timestamp: Tue 2023-06-20 04:52:47 EDT (11s ago)
   Command Line: lldptool
   Executable: /usr/sbin/lldptool
   Control Group: /user.slice/user-0.slice/session-4.scope
   Unit:
   Slice: user-0.slice
   Session: 4
   Owner UID: 0 (root)
   Boot ID: 8328d66f57934493b67c0bbefc07554b
   Machine ID: 57da1e1c05ad4c59a192c7c459f0125c
   Hostname: localhost
   Storage: /var/lib/systemd/coredump/core.lldptool.0.8328d66f57934493b67c0bbefc07554b.7762.1687251167000000.lz4
   Message: Process 7762 (lldptool) of user 0 dumped core.

Stack trace of thread 7762:
#0 0x00007f516d7db165 _dl_close (ld-linux-x86-64.so.2)
#1 0x00007f516cf4c9d4 _dl_catch_exception (libc.so.6)
#2 0x00007f516cf4ca93 _dl_catch_error (libc.so.6)
#3 0x00007f516d5d152e _dlerror_run (libdl.so.2)
#4 0x00007f516d5d10b8 dlclose (libdl.so.2)
#5 0x000055df8a9db970 close_history (lldptool)
#6 0x000055df8a9d0aa3 main (lldptool)
#7 0x00007f516ce1ed85 __libc_start_main (libc.so.6)
#8 0x000055df8a9d0aee _start (lldptool)
#

Expected results:

• no segfaults