diff --git a/0001-bugfix-cannot-open-database-file.patch b/0001-bugfix-cannot-open-database-file.patch
new file mode 100644
index 0000000..002bf23
--- /dev/null
+++ b/0001-bugfix-cannot-open-database-file.patch
@@ -0,0 +1,50 @@
+From 3bd5a1244a35974c8a0e21a9ac866cb5935f662e Mon Sep 17 00:00:00 2001
+From: Hongxun Ren <renhongxun@huawei.com>
+Date: Wed, 15 Sep 2021 10:05:49 +0800
+Subject: [PATCH] bugfix cannot open database file
+
+---
+ modules/pam_userdb/pam_userdb.c | 23 ++++++++++++++++++++---
+ 1 file changed, 20 insertions(+), 3 deletions(-)
+
+diff --git a/modules/pam_userdb/pam_userdb.c b/modules/pam_userdb/pam_userdb.c
+index dc2ca23..a9992a7 100644
+--- a/modules/pam_userdb/pam_userdb.c
++++ b/modules/pam_userdb/pam_userdb.c
+@@ -147,13 +147,30 @@ user_lookup (pam_handle_t *pamh, const char *database, const char *cryptmode,
+ {
+     DBM *dbm;
+     datum key, data;
++    int retval;
+ 
++    /* Init the DB file. */
++    retval = dbminit(database);
++    if (retval) {
++        pam_syslog(pamh, LOG_ERR,
++                   "user_lookup: could not init database `%s': %m", database);
++        return -2;
++    }
+     /* Open the DB file. */
+     dbm = dbm_open(database, O_RDONLY, 0644);
+     if (dbm == NULL) {
+-	pam_syslog(pamh, LOG_ERR,
+-		   "user_lookup: could not open database `%s': %m", database);
+-	return -2;
++        retval = dbminit(database);
++        if (retval){
++            pam_syslog(pamh, LOG_ERR,
++                       "user_lookup: could not re-init database `%s': %m", database);
++        } else {
++            dbm = dbm_open(database, O_RDONLY, 0644);
++            if(dbm == NULL) {
++                pam_syslog(pamh, LOG_ERR,
++                           "user_lookup: could not open database `%s': %m", database);
++                return -2;
++            }
++        }
+     }
+ 
+     /* dump out the database contents for debugging */
+-- 
+1.8.3.1
+
diff --git a/pam.spec b/pam.spec
index ddf23ed..7d3cbba 100644
--- a/pam.spec
+++ b/pam.spec
@@ -4,7 +4,7 @@
 %define _pamconfdir %{_sysconfdir}/pam.d
 Name: pam
 Version: 1.4.0
-Release: 5
+Release: 6
 Summary: Pluggable Authentication Modules for Linux
 License: BSD and GPLv2+
 URL: http://www.linux-pam.org/
@@ -28,6 +28,7 @@ Patch6: Prevent-SEGFAULT-for-unknown-UID.patch
 Patch7: change-ndbm-to-gdbm.patch
 Patch6000: backport-Move-read_passwords-function-from-pam_unix-to-pam_inline.h.patch
 Patch6001: backport-add-helper-to-handle-SELinux.patch
+Patch9000: 0001-bugfix-cannot-open-database-file.patch
 
 BuildRequires: autoconf automake libtool bison flex sed cracklib-devel gdbm-devel
 BuildRequires: perl-interpreter pkgconfig gettext-devel libtirpc-devel libnsl2-devel
@@ -180,6 +181,9 @@ fi
 
 
 %changelog
+* Thu Sep 16 2021 renhongxun <renhongxun@huawei.com> - 1.4.0-6
+- bugfix on cannot open database file
+ 
 * Mon May 17 2021 shixuantong <shixuantong@huawei.com> - 1.4.0-5
 - fix error in change-ndbm-to-gdbm.patch and sync community patch