libcli/smb: fix NULL pointer derreference in smbXcli_session_is_authenticated().

Guenther

BUG: https://bugzilla.samba.org/show_bug.cgi?id=11841

Signed-off-by: Guenther Deschner <gd@samba.org>
Reviewed-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
(cherry picked from commit 8e016ffeb01167bb8dec66cf9e4bc8605461c15a)

diff --git a/libcli/smb/smbXcli_base.c b/libcli/smb/smbXcli_base.c
index b635c1470506afeeb605bcbab7a1b93adc4355db..10500a2418ee7a53382e28dd72eabda907d2f16e 100644 (file)
--- a/libcli/smb/smbXcli_base.c
+++ b/libcli/smb/smbXcli_base.c
@@ -5305,6 +5305,10 @@ bool smbXcli_session_is_authenticated(struct smbXcli_session *session)
 {
        const DATA_BLOB *application_key;
 
+       if (session == NULL) {
+               return false;
+       }
+
        if (session->conn == NULL) {
                return false;
        }