It's an image from Reddit. Actually pictures like this one come up regularly on the net with surprised comments. The thing is, the text is way too 'good' to be the result of some overflow. Might it be the result of a race condition with pointers to strings?
I tried googling the reddit post but I has not lucky. Sometimes the original post has some context that makes easier to debug the problem, or sometimes it has an interesting comment with a good guess about the cause.