// in issue 10413. It is only 504 bytes, and shouldn't take long for Decode
	// to return an error. The Start Of Frame marker gives the image dimensions
	// as 8192 wide and 8192 high, so even if an unreadByteStuffedByte bug
	// doesn't technically lead to an infinite loop, such a bug can still cause
	// an unreasonably long loop for such a short input.
	const input = "" +