static int netlbl_cipsov4_listall_cb(struct cipso_v4_doi *doi_def, void *arg)
{
	int ret_val = -ENOMEM;
	struct netlbl_cipsov4_doiwalk_arg *cb_arg = arg;
	void *data;

	data = genlmsg_put(cb_arg->skb, NETLINK_CB(cb_arg->nl_cb->skb).pid,
			   cb_arg->seq, &netlbl_cipsov4_gnl_family,
			   NLM_F_MULTI, NLBL_CIPSOV4_C_LISTALL);
	if (data == NULL)
		goto listall_cb_failure;

	ret_val = nla_put_u32(cb_arg->skb, NLBL_CIPSOV4_A_DOI, doi_def->doi);
	if (ret_val != 0)
		goto listall_cb_failure;
	ret_val = nla_put_u32(cb_arg->skb,
			      NLBL_CIPSOV4_A_MTYPE,
			      doi_def->type);
	if (ret_val != 0)
		goto listall_cb_failure;

	return genlmsg_end(cb_arg->skb, data);

listall_cb_failure:
	genlmsg_cancel(cb_arg->skb, data);
	return ret_val;
}

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.