kex_input_newkeys(int type, u_int32_t seq, void *ctxt)
{
	struct ssh *ssh = ctxt;
	struct kex *kex = ssh->kex;
	int r;

	debug("SSH2_MSG_NEWKEYS received");
	ssh_dispatch_set(ssh, SSH2_MSG_NEWKEYS, &kex_protocol_error);
	if ((r = sshpkt_get_end(ssh)) != 0)
		return r;
	if ((r = ssh_set_newkeys(ssh, MODE_IN)) != 0)
		return r;
	kex->done = 1;
	sshbuf_reset(kex->peer);
	/* sshbuf_reset(kex->my); */
	kex->flags &= ~KEX_INIT_SENT;
	free(kex->name);
	kex->name = NULL;
	return 0;
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.