An issue was discovered in yasm version 1.3.0. There is a NULL pointer dereference in yasm_expr__copy_except() in libyasm/expr.c.Referenceshttps://github.com/yasm/yasm/issues/174https://gist.github.com/Clingto/bb632c0c463f4b2c97e4f65f751c5e6d