fs: exec: apply CLOEXEC before changing dumpable task flags

	flush_thread();

	current->personality &= ~bprm->per_clear;

	/*

	 * We have to apply CLOEXEC before we change whether the process is

	 * dumpable (in setup_new_exec) to avoid a race with a process in userspace

	 * trying to access the should-be-closed file descriptors of a process

 	 * undergoing exec(2).

	 */

	do_close_on_exec(current->files);

	return 0;

out:

	current->self_exec_id++;

	flush_signal_handlers(current, 0);

	do_close_on_exec(current->files);

}

EXPORT_SYMBOL(setup_new_exec);