struct dvb_frontend *cx24116_attach(const struct cx24116_config *config,
	struct i2c_adapter *i2c)
{
	struct cx24116_state *state = NULL;
	int ret;

	dprintk("%s\n", __func__);

	/* allocate memory for the internal state */
	state = kzalloc(sizeof(struct cx24116_state), GFP_KERNEL);
	if (state == NULL)
		goto error1;

	state->config = config;
	state->i2c = i2c;

	/* check if the demod is present */
	ret = (cx24116_readreg(state, 0xFF) << 8) |
		cx24116_readreg(state, 0xFE);
	if (ret != 0x0501) {
		printk(KERN_INFO "Invalid probe, probably not a CX24116 device\n");
		goto error2;
	}

	/* create dvb_frontend */
	memcpy(&state->frontend.ops, &cx24116_ops,
		sizeof(struct dvb_frontend_ops));
	state->frontend.demodulator_priv = state;
	return &state->frontend;

error2: kfree(state);
error1: return NULL;
}

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.