G115: false positive uintptr -> int overflow in syscall fd arguments

[WGH-]

func lock(t testing.TB, filename string) (unlock func()) {
	f, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE, 0600)
	require.NoError(t, err)

	for {
		err = unix.Flock(int(f.Fd()), unix.LOCK_EX)
		if !errors.Is(err, unix.EINTR) {
			break
		}
	}
	require.NoError(t, err)

	return func() {
		_ = f.Close()
	}
} 

G115 (CWE-190): integer overflow conversion uintptr -> int (Confidence: MEDIUM, Severity: HIGH)
    50: 	for {
  > 51: 		err = unix.Flock(int(f.Fd()), unix.LOCK_EX)
    52: 		if !errors.Is(err, unix.EINTR) {

However, this is the correct way to operate on raw file descriptors. See lots of examples in Go source itself: https://github.com/search?q=repo%3Agolang%2Fgo+%2F%28unix%7Csyscall%29%5C.%5Cw%2B%5C%28int%5C%28%2F&type=code