static int ip_vs_genl_dump_daemons(struct sk_buff *skb,
				   struct netlink_callback *cb)
{
	mutex_lock(&__ip_vs_mutex);
	if ((ip_vs_sync_state & IP_VS_STATE_MASTER) && !cb->args[0]) {
		if (ip_vs_genl_dump_daemon(skb, IP_VS_STATE_MASTER,
					   ip_vs_master_mcast_ifn,
					   ip_vs_master_syncid, cb) < 0)
			goto nla_put_failure;

		cb->args[0] = 1;
	}

	if ((ip_vs_sync_state & IP_VS_STATE_BACKUP) && !cb->args[1]) {
		if (ip_vs_genl_dump_daemon(skb, IP_VS_STATE_BACKUP,
					   ip_vs_backup_mcast_ifn,
					   ip_vs_backup_syncid, cb) < 0)
			goto nla_put_failure;

		cb->args[1] = 1;
	}

nla_put_failure:
	mutex_unlock(&__ip_vs_mutex);

	return skb->len;
}

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.