That's what is supposed to happen. To allow other OSes, all the makers so far offer a setting to turn off secure boot and enable what may be called Corporate Stable Mode.
Interesting that you called it a bug!
Some Samsung laptops such as some Series 3 models have a UEFI bug which causes the motherboard to permanently malfunction when installing a new OS through the BIOS. I have installed Ubuntu on my Samsung NP300U1A using a USB flash drive without problems, so I was wondering if this model is affected by this bug at all?