Comment by jart

Here's a simple concrete example for folks who don't know Rust:

    int main(int argc, char *argv[]) {
    #define TINY_ELF_PROGRAM "\
    \177\105\114\106\002\001\001\000\000\000\000\000\000\000\000\000\
    \002\000\076\000\001\000\000\000\170\000\100\000\000\000\000\000\
    \100\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\
    \000\000\000\000\100\000\070\000\001\000\000\000\000\000\000\000\
    \001\000\000\000\005\000\000\000\000\000\000\000\000\000\000\000\
    \000\000\100\000\000\000\000\000\000\000\100\000\000\000\000\000\
    \200\000\000\000\000\000\000\000\200\000\000\000\000\000\000\000\
    \000\020\000\000\000\000\000\000\152\052\137\152\074\130\017\005"
      int fd = memfd_create("foo", MFD_CLOEXEC);
      write(fd, TINY_ELF_PROGRAM, sizeof(TINY_ELF_PROGRAM)-1);
      fexecve(fd, argv, environ);
    }

Who here is brave enough to run my C string?