get_server_iovec(struct TCP_Server_Info *server, unsigned int nr_segs)
{
	struct kvec *new_iov;

	if (server->iov && nr_segs <= server->nr_iov)
		return server->iov;

	/* not big enough -- allocate a new one and release the old */
	new_iov = kmalloc(sizeof(*new_iov) * nr_segs, GFP_NOFS);
	if (new_iov) {
		kfree(server->iov);
		server->iov = new_iov;
		server->nr_iov = nr_segs;
	}
	return new_iov;
}

This weakness involves numeric computation errors, such as integer overflows, underflows, or precision losses, which can lead to miscalculations and exploitable behaviors in software.