int proto_register(struct proto *prot, int alloc_slab)
{
	if (alloc_slab) {
		prot->slab = kmem_cache_create(prot->name, prot->obj_size, 0,
					SLAB_HWCACHE_ALIGN | prot->slab_flags,
					NULL);

		if (prot->slab == NULL) {
			pr_crit("%s: Can't create sock SLAB cache!\n",
				prot->name);
			goto out;
		}

		if (req_prot_init(prot))
			goto out_free_request_sock_slab;

		if (prot->twsk_prot != NULL) {
			prot->twsk_prot->twsk_slab_name = kasprintf(GFP_KERNEL, "tw_sock_%s", prot->name);

			if (prot->twsk_prot->twsk_slab_name == NULL)
				goto out_free_request_sock_slab;

			prot->twsk_prot->twsk_slab =
				kmem_cache_create(prot->twsk_prot->twsk_slab_name,
						  prot->twsk_prot->twsk_obj_size,
						  0,
						  prot->slab_flags,
						  NULL);
			if (prot->twsk_prot->twsk_slab == NULL)
				goto out_free_timewait_sock_slab_name;
		}
	}

	mutex_lock(&proto_list_mutex);
	list_add(&prot->node, &proto_list);
	assign_proto_idx(prot);
	mutex_unlock(&proto_list_mutex);
	return 0;

out_free_timewait_sock_slab_name:
	kfree(prot->twsk_prot->twsk_slab_name);
out_free_request_sock_slab:
	req_prot_cleanup(prot->rsk_prot);

	kmem_cache_destroy(prot->slab);
	prot->slab = NULL;
out:
	return -ENOBUFS;
}

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.