From 4c908afd76a0b141e79c9cfe2ef08a0d49915554 Mon Sep 17 00:00:00 2001
From: Gerald Carter <jerry@samba.org>
Date: Wed, 5 May 2004 02:58:43 +0000
Subject: [PATCH] r486: BUG 1309: fix seg fault caused by trying to strdup() a
 NULL pointer

---
 source/smbd/password.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/source/smbd/password.c b/source/smbd/password.c
index d15970cbefe..72292de4227 100644
--- a/source/smbd/password.c
+++ b/source/smbd/password.c
@@ -488,7 +488,11 @@ BOOL authorise_login(int snum, fstring user, DATA_BLOB password,
 	/* now check the list of session users */
 	if (!ok) {
 		char *auser;
-		char *user_list = strdup(session_userlist);
+		char *user_list = NULL;
+
+		if ( session_userlist )
+			user_list = strdup(session_userlist);
+
 		if (!user_list)
 			return(False);
 		
-- 
2.11.4.GIT