diff --git a/fs/ksmbd/smb2pdu.c b/fs/ksmbd/smb2pdu.c
index 246ce4cd8469597a403ec6eb8b03ac49e45ab1dd..c545c41b0364456a32a9d19f408347ad5180fbe2 100644
--- a/fs/ksmbd/smb2pdu.c
+++ b/fs/ksmbd/smb2pdu.c
@@ -1142,12 +1142,16 @@ int smb2_handle_negotiate(struct ksmbd_work *work)
 			       status);
 			rsp->hdr.Status = status;
 			rc = -EINVAL;
+			kfree(conn->preauth_info);
+			conn->preauth_info = NULL;
 			goto err_out;
 		}
 
 		rc = init_smb3_11_server(conn);
 		if (rc < 0) {
 			rsp->hdr.Status = STATUS_INVALID_PARAMETER;
+			kfree(conn->preauth_info);
+			conn->preauth_info = NULL;
 			goto err_out;
 		}