diff --git a/backport-Fix-off-by-one-error-in-closing-file-descriptors.patch b/backport-Fix-off-by-one-error-in-closing-file-descriptors.patch
new file mode 100644
index 0000000000000000000000000000000000000000..c0e23549e65e4413ee7f8f190fc65737d9e08a30
--- /dev/null
+++ b/backport-Fix-off-by-one-error-in-closing-file-descriptors.patch
@@ -0,0 +1,27 @@
+From 1c9b021e78dc67b9cdca5f9ad10cbde08418ee28 Mon Sep 17 00:00:00 2001
+From: Arthur de Jong <arthur@arthurdejong.org>
+Date: Mon, 10 Oct 2022 23:15:06 +0200
+Subject: [PATCH] Fix off-by one error in closing file descriptors
+
+This could leave file descriptor 3 open from the parent process starting
+nslcd.
+---
+ nslcd/daemonize.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/nslcd/daemonize.c b/nslcd/daemonize.c
+index d11d358..be3b386 100644
+--- a/nslcd/daemonize.c
++++ b/nslcd/daemonize.c
+@@ -50,7 +50,7 @@ void daemonize_closefds(void)
+      hope we closed enough */
+   if (i < 0)
+     i = 32;
+-  for (; i > 3; i--)
++  for (; i > 2; i--)
+     close(i);
+ }
+ 
+-- 
+2.27.0
+
diff --git a/nss-pam-ldapd.spec b/nss-pam-ldapd.spec
index 9386113e4f2ed5210181a95fc7e1b38457234bef..a376bad3218b4a4b732db937f5d33162cc07a16c 100644
--- a/nss-pam-ldapd.spec
+++ b/nss-pam-ldapd.spec
@@ -2,7 +2,7 @@
 
 Name:           nss-pam-ldapd
 Version:        0.9.11
-Release:        1
+Release:        2
 Summary:        NSS and PAM libraries for name lookups and authentication using LDAP
 License:        LGPLv2+
 URL:            http://arthurdejong.org/nss-pam-ldapd/
@@ -13,6 +13,7 @@ Source4:        nslcd.service
 
 Patch0:      0001-Disable-pylint-tests.patch
 Patch1:      0002-Watch-for-uint32_t-overflows.patch
+Patch2:      backport-Fix-off-by-one-error-in-closing-file-descriptors.patch
 
 BuildRequires:  gcc, openldap-devel, krb5-devel, autoconf, automake, pam-devel, systemd-units
 %{?systemd_requires}
@@ -100,6 +101,12 @@ getent passwd nslcd > /dev/null || \
 %{_mandir}/*/*
 
 %changelog
+* Wed Oct 19 2022 yixiangzhike <yixiangzhike007@163.com> - 0.9.11-2
+- Type:bugfix
+- ID:NA
+- SUG:restart
+- DESC:fix off-by one error in closing file descriptors
+
 * Mon Jul 27 2020 Liquor <lirui130@huawei.com> - 0.9.11-1
 - Type:bugfix
 - ID:NA