88 unique crashes while fuzzing using american fuzzy lop

[yetipenguin]

I was able to create 88 unique crashes while fuzzing with american fuzzy lop.

In the attachment you finde the six files that cause sassc to crash.
The fuzzing was done against git head aa6d5c6.
Just use the txt files as input-sass file for sassc.

As test cases I used all *.scss files from the bootstrap 4 source zip:
https://github.com/twbs/bootstrap/archive/v4.0.0.zip

crash1.txt
crash2.txt
crash3.txt
crash4.txt
crash5.txt
crash6.txt
crash7.txt
crash8.txt
crash9.txt
crash10.txt
crash11.txt
crash12.txt
crash13.txt
crash14.txt
crash15.txt
crash16.txt
crash17.txt
crash18.txt
crash19.txt
crash20.txt
crash21.txt
crash22.txt
crash23.txt
crash24.txt
crash25.txt
crash26.txt
crash27.txt
crash28.txt
crash29.txt
crash30.txt
crash31.txt
crash32.txt
crash33.txt
crash34.txt
crash35.txt
crash36.txt
crash37.txt
crash38.txt
crash39.txt
crash40.txt
crash41.txt
crash42.txt
crash43.txt
crash44.txt
crash45.txt
crash46.txt
crash47.txt
crash48.txt
crash49.txt
crash50.txt
crash51.txt
crash52.txt
crash53.txt
crash54.txt
crash55.txt
crash56.txt
crash57.txt
crash58.txt
crash59.txt
crash60.txt
crash61.txt
crash62.txt
crash63.txt
crash64.txt
crash65.txt
crash66.txt
crash67.txt
crash68.txt
crash69.txt
crash70.txt
crash71.txt
crash72.txt
crash73.txt
crash74.txt
crash75.txt
crash76.txt
crash77.txt
crash78.txt
crash79.txt
crash80.txt
crash81.txt
crash82.txt
crash83.txt
crash84.txt
crash85.txt
crash86.txt
crash87.txt
crash88.txt