Merge "input: synaptics_dsx: add checks of user input data" (74d0e8e4) · Commits · e / devices / android_kernel_sony_msm8998

drivers/input/touchscreen/synaptics_dsx/synaptics_dsx_fw_update.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -1606,6 +1606,13 @@ 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->pdev->dev.parent,
		"%s: Not enough space in buffer\n",
		__func__);
		return -EINVAL;
		}

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