From 97e4778103744419ecaeb0058460041ef01b2e2a Mon Sep 17 00:00:00 2001
From: Volker Lendecke <vlendec@samba.org>
Date: Mon, 25 Aug 2003 09:13:20 +0000
Subject: [PATCH] Fix segfault. krb5_free_ticket does not check if it got a
 NULL ticket.

---
 source/libads/kerberos_verify.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/libads/kerberos_verify.c b/source/libads/kerberos_verify.c
index 3343194203f..4bd20a36399 100644
--- a/source/libads/kerberos_verify.c
+++ b/source/libads/kerberos_verify.c
@@ -239,7 +239,8 @@ NTSTATUS ads_verify_ticket(const char *realm, const DATA_BLOB *ticket,
 		data_blob_free(ap_rep);
 
 	krb5_free_principal(context, host_princ);
-	krb5_free_ticket(context, tkt);
+	if (tkt != NULL)
+		krb5_free_ticket(context, tkt);
 	free_kerberos_etypes(context, enctypes);
 	SAFE_FREE(password_s);
 	SAFE_FREE(host_princ_s);