From 0dffc7c61200f492eeac03c29fa7e93b62d3cead Mon Sep 17 00:00:00 2001
From: Serge Hallyn <serge@hallyn.com>
Date: Fri, 1 Jan 2021 13:10:12 -0600
Subject: [PATCH] useradd: don't try to create 0 subuids

Closes #289

Signed-off-by: Serge Hallyn <serge@hallyn.com>
---
 src/useradd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/useradd.c b/src/useradd.c
index 1dbbcf3d..a0369cd8 100644
--- a/src/useradd.c
+++ b/src/useradd.c
@@ -2581,7 +2581,7 @@ int main (int argc, char **argv)
 	}
 
 #ifdef ENABLE_SUBIDS
-	if (is_sub_uid) {
+	if (is_sub_uid && sub_uid_count != 0) {
 		if (find_new_sub_uids(&sub_uid_start, &sub_uid_count) < 0) {
 			fprintf (stderr,
 			         _("%s: can't create subordinate user IDs\n"),
@@ -2589,7 +2589,7 @@ int main (int argc, char **argv)
 			fail_exit(E_SUB_UID_UPDATE);
 		}
 	}
-	if (is_sub_gid) {
+	if (is_sub_gid && sub_gid_count != 0) {
 		if (find_new_sub_gids(&sub_gid_start, &sub_gid_count) < 0) {
 			fprintf (stderr,
 			         _("%s: can't create subordinate group IDs\n"),