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+++ This bug was initially created as a clone of Bug #1986782 +++

This bug was initially created as a copy of Bug #1986111

I am copying this bug because: 
the problem also exists in RHEL9

Description of problem:
When using groupdel with a prefix path, it segfaults on Fedora 34.
groupadd and groupmod both are working fine.

Version-Release number of selected component (if applicable):
shadow-utils-4.6-12.el8.x86_64

How reproducible:
Every time groupdel is executed (as root)

Steps to Reproduce:
1. Create a custom /etc/group file, e.g. using
[root@rhel84-vm ~]# mkdir -p $HOME/custom_root/etc/
[root@rhel84-vm ~]# touch $HOME/custom_root/etc/group
2. Create a group (succeeds)
[root@rhel84-vm ~]# groupadd -P $HOME/custom_root test_group
3. Delete the group (fails)
[root@rhel84-vm ~]# groupdel -P $HOME/custom_root test_group

Actual results:
[root@rhel84-vm ~]# groupdel -P $HOME/custom_root test_group
Segmentation fault (core dumped)

Expected results:
Return code 0 with the group deleted from $HOME/custom_root/etc/group

--- Additional comment from Iker Pedrosa on 2021-11-19 08:34:28 UTC ---

master
    groupdel: fix SIGSEGV when passwd does not exist - a757b458ffb4fb9a40bcbb4f7869449431c67f83

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory (new packages: shadow-utils), and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2022:3997