cifs: check for NULL session password

It's possible for a cifsSesInfo struct to have a NULL password, so we
need to check for that prior to running strncmp on it.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 18af707f00f1ff002c4362140453af6481f745c7..ec0ea4a43bdb4efc0f3734f439b6af78af97a2f4 100644 (file)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1673,6 +1673,7 @@ cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol)
                                    MAX_USERNAME_SIZE))
                                continue;
                        if (strlen(vol->username) != 0 &&
+                           ses->password != NULL &&
                            strncmp(ses->password,
                                    vol->password ? vol->password : "",
                                    MAX_PASSWORD_SIZE))