int wvlan_uil(struct uilreq *urq, struct wl_private *lp)
{
	int ioctl_ret = 0;
	/*------------------------------------------------------------------------*/

	DBG_FUNC("wvlan_uil");
	DBG_ENTER(DbgInfo);

	switch (urq->command) {
	case UIL_FUN_CONNECT:
		DBG_TRACE(DbgInfo, "IOCTL: WVLAN2_IOCTL_UIL -- WVLAN2_UIL_CONNECT\n");
		ioctl_ret = wvlan_uil_connect(urq, lp);
		break;
	case UIL_FUN_DISCONNECT:
		DBG_TRACE(DbgInfo, "IOCTL: WVLAN2_IOCTL_UIL -- WVLAN2_UIL_DISCONNECT\n");
		ioctl_ret = wvlan_uil_disconnect(urq, lp);
		break;
	case UIL_FUN_ACTION:
		DBG_TRACE(DbgInfo, "IOCTL: WVLAN2_IOCTL_UIL -- WVLAN2_UIL_ACTION\n");
		ioctl_ret = wvlan_uil_action(urq, lp);
		break;
	case UIL_FUN_SEND_DIAG_MSG:
		DBG_TRACE(DbgInfo, "IOCTL: WVLAN2_IOCTL_UIL -- WVLAN2_UIL_SEND_DIAG_MSG\n");
		ioctl_ret = wvlan_uil_send_diag_msg(urq, lp);
		break;
	case UIL_FUN_GET_INFO:
		DBG_TRACE(DbgInfo, "IOCTL: WVLAN2_IOCTL_UIL -- WVLAN2_UIL_GET_INFO\n");
		ioctl_ret = wvlan_uil_get_info(urq, lp);
		break;
	case UIL_FUN_PUT_INFO:
		DBG_TRACE(DbgInfo, "IOCTL: WVLAN2_IOCTL_UIL -- WVLAN2_UIL_PUT_INFO\n");
		ioctl_ret = wvlan_uil_put_info(urq, lp);
		break;
	default:
		DBG_TRACE(DbgInfo, "IOCTL: WVLAN2_IOCTL_UIL -- UNSUPPORTED UIL CODE: 0x%X", urq->command);
		ioctl_ret = -EOPNOTSUPP;
		break;
	}
	DBG_LEAVE(DbgInfo);
	return ioctl_ret;
} /* wvlan_uil */

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.