When you chop dark oak it drops as a generic block. gets picked up as oak in the inventory, cannot be crafted, and, crashes the game upon trying to place the block.
To duplicate simply go to a dark oak tree and chop with an axe.
(Sorry, see now this was reported and this is a duplicate - originally the other reports did not show up in search).
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Ezekiel
Duplicate of MC-56893 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.
Originally upon seeing this problem I did a search for "dark oak" and seeing that the bug number at the top was in the range of 4xxxx I was unable to see the recent ones (the expected behavior being that a search would order bugs in descending numerical order from highest to lowest or perhaps most recent to oldest). Because I did not see any bugs with "dark oak" having numbers beginning with 5xxxxx I ended up duplicating another report.