#Bash, 4 bytes
Bash, 4 bytes
Golfed
. $0 Recursively include the script into itself.
Explained
Recursive "source" (.) operation causes a stack overflow eventually, and as Bash does not integrate with libsigsegv, this results in a SIGSEGV.
Note that this is not a bug, but an expected behavior, as discussed here.
Test
./bang Segmentation fault (core dumped)