static void uv__write_int(int fd, int val) {
  ssize_t n;

  do
    n = write(fd, &val, sizeof(val));
  while (n == -1 && errno == EINTR);

  if (n == -1 && errno == EPIPE)
    return; /* parent process has quit */

  assert(n == sizeof(val));
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.