Merge "fg-util: fix a possible buffer overflow"

	/* Parse the data in the buffer.  It should be a string of numbers */

	while ((pos < count) &&

		sscanf(kbuf + pos, "%i%n", &data, &bytes_read) == 1) {

		/*

		 * We shouldn't be receiving a string of characters that

		 * exceeds a size of 5 to keep this functionally correct.

		 * Also, we should make sure that pos never gets overflowed

		 * beyond the limit.

		 */

		if (bytes_read > 5 || bytes_read > INT_MAX - pos) {

			cnt = 0;

			ret = -EINVAL;

			break;

		}

		pos += bytes_read;

		values[cnt++] = data & 0xff;

	}