1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 75b685960e80..fcffd0412d83 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -773,6 +773,12 @@ static int iscsi_target_handle_csg_zero(
                 }
 
                 goto do_auth;
+        } else if (!payload_length) {
+                pr_err("Initiator sent zero length security payload,"
+                       " login failed\n");
+                iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_INITIATOR_ERR,
+                                    ISCSI_LOGIN_STATUS_AUTH_FAILED);
+                return -1;
         }
 
         if (login->first_request)