I've never been more proud

Wednesday, 5 July 2017

This morning I remembered I had a beefy virtual-server setup to run some kernel builds upon (when I was playing with Linux security moduels), and I figured before I shut it down I should use the power to run some fuzzing.

As I was writing some code in Emacs at the time I figured "why not fuzz emacs?"

After a few hours this was the result:

 deagol ~ $ perl -e 'print "`" x ( 1024 * 1024  * 12);' > t.el
 deagol ~ $ /usr/bin/emacs --batch --script ./t.el
 Segmentation fault (core dumped)

Yup, evaluating an lisp file caused a segfault, due to a stack-overflow (no security implications). I've never been more proud, even though I have contributed code to GNU Emacs in the past.

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