int wvlan_uil_send_diag_msg(struct uilreq *urq, struct wl_private *lp)
{
	int         result = 0;
	DESC_STRCT  Descp[1];
	/*------------------------------------------------------------------------*/


	DBG_FUNC("wvlan_uil_send_diag_msg");
	DBG_ENTER(DbgInfo);

	if (urq->hcfCtx == &(lp->hcfCtx)) {
		if (capable(CAP_NET_ADMIN)) {
			if ((urq->data != NULL) && (urq->len != 0)) {
				if (lp->hcfCtx.IFB_RscInd != 0) {
					u_char *data;

					/* Verify the user buffer */
					result = verify_area(VERIFY_READ, urq->data, urq->len);
					if (result != 0) {
						DBG_ERROR(DbgInfo, "verify_area failed, result: %d\n", result);
						urq->result = UIL_FAILURE;
						DBG_LEAVE(DbgInfo);
						return result;
					}

					data = kmalloc(urq->len, GFP_KERNEL);
					if (data != NULL) {
						memset(Descp, 0, sizeof(DESC_STRCT));
						memcpy(data, urq->data, urq->len);

						Descp[0].buf_addr       = (wci_bufp)data;
						Descp[0].BUF_CNT        = urq->len;
						Descp[0].next_desc_addr = 0;    /* terminate list */

						hcf_send_msg(&(lp->hcfCtx),  &Descp[0], HCF_PORT_0);
						kfree(data);
					} else {
						DBG_ERROR(DbgInfo, "ENOMEM\n");
						urq->result = UIL_FAILURE;
						result = -ENOMEM;
						DBG_LEAVE(DbgInfo);
						return result;
					}

				} else {
					urq->result = UIL_ERR_BUSY;
				}

			} else {
				urq->result = UIL_FAILURE;
			}
		} else {
			DBG_ERROR(DbgInfo, "EPERM\n");
			urq->result = UIL_FAILURE;
			result = -EPERM;
		}
	} else {
		DBG_ERROR(DbgInfo, "UIL_ERR_WRONG_IFB\n");
		urq->result = UIL_ERR_WRONG_IFB;
	}

	DBG_LEAVE(DbgInfo);
	return result;
} /* wvlan_uil_send_diag_msg */

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.