Package: adduser
Version: 3.112+nmu2
Severity: minor
Tags: patch
Believe it or not, I just had a legitimate reason to try this:
$ sudo addgroup --force-badname 0
Allowing use of questionable username.
Adding group `0' (GID 1002) ...
Done.
$ sudo delgroup 0
Use of uninitialized value $gr_gid in string eq at /usr/sbin/delgroup line 414.
Use of uninitialized value $gr_gid in string eq at /usr/sbin/delgroup line 414.
Use of uninitialized value $gr_gid in string eq at /usr/sbin/delgroup line 414.
…
Use of uninitialized value $gr_gid in string eq at /usr/sbin/delgroup line 414.
Use of uninitialized value $gr_gid in string eq at /usr/sbin/delgroup line 414.
Use of uninitialized value $gr_gid in string eq at /usr/sbin/delgroup line 414.
Removing group `0' ...
Done.
Here’s a patch:
--- adduser-3.112+nmu2/deluser
+++ adduser-3.112+nmu2/deluser
@@ -175,7 +175,7 @@
my ($pw_uid, $pw_gid, $pw_homedir, $gr_gid, $maingroup);
-if($user) {
+if (defined($user)) {
my @passwd = getpwnam($user);
$pw_uid = $passwd[2];
$pw_gid = $passwd[3];
@@ -183,7 +183,7 @@
$maingroup = $pw_gid ? getgrgid($pw_gid) : "";
}
-if($group) {
+if (defined($group)) {
#($gr_name,$gr_passwd,$gr_gid,$gr_members) = getgrnam($group);
my @group = getgrnam($group);
$gr_gid = $group[2];
--
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