Merge "input: synaptics: Add checks of user input data" (315f8d16) · Commits · e / devices / android_kernel_xiaomi_markw

drivers/input/touchscreen/synaptics_fw_update.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -1697,6 +1697,13 @@ static ssize_t fwu_sysfs_store_image(struct file *data_file,
		struct kobject kobj, struct bin_attribute attributes,
		char *buf, loff_t pos, size_t count)
		{
		if (count > fwu->image_size - fwu->data_pos) {
		dev_err(&fwu->rmi4_data->i2c_client->dev,
		"%s: Not enough space in buffer\n",
		__func__);
		return -EINVAL;
		}

		memcpy((void *)(&fwu->ext_data_source[fwu->data_pos]),
		(const void *)buf,
		count);