Possible buffer overflow in wa.c

[mappu]

Hi! Super cool project.

It was posted on HN today at https://news.ycombinator.com/item?id=19617652 and one user had this to say:

This line: https://github.com/grassel/wac-esp/blob/master/main/wa.c#L683

What prevents me from writing a wasm file with an arbitrary value for "depth" greater than CALLSTACK_SIZE (1024) and overflowing the buffer? (If the answer is "nothing", that's probably arbitrary code execution.)

[grassel]

Thanks - I saw the comment on HN myself. - I will look into this.

[grassel]

Thanks - I saw the comment on HN myself. - I will look into this.