int uv__make_pipe(int fds[2], int flags) {
#if defined(__linux__)
  static int no_pipe2;

  if (no_pipe2)
    goto skip;

  if (uv__pipe2(fds, flags | UV__O_CLOEXEC) == 0)
    return 0;

  if (errno != ENOSYS)
    return -errno;

  no_pipe2 = 1;

skip:
#endif

  if (pipe(fds))
    return -errno;

  uv__cloexec(fds[0], 1);
  uv__cloexec(fds[1], 1);

  if (flags & UV__F_NONBLOCK) {
    uv__nonblock(fds[0], 1);
    uv__nonblock(fds[1], 1);
  }

  return 0;
}

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