chmod: correctly handle modes after --

src/uu/chmod/src/chmod.rs

@@ -184,6 +184,9 @@ pub fn uu_app() -> App<'static, 'static> {
 // e.g. "chmod -v -xw -R FILE" -> "chmod -v xw -R FILE"
 pub fn strip_minus_from_mode(args: &mut Vec<String>) -> bool {
     for arg in args {
+        if arg == "--" {
+            break;
+        }
         if arg.starts_with('-') {
             if let Some(second) = arg.chars().nth(1) {
                 match second {

tests/by-util/test_chmod.rs

@@ -532,3 +532,17 @@ fn test_no_operands() {
         .code_is(1)
         .stderr_is("chmod: missing operand");
 }
+
+#[test]
+fn test_mode_after_dash_dash() {
+    let (at, ucmd) = at_and_ucmd!();
+    run_single_test(
+        &TestCase {
+            args: vec!["--", "-r", TEST_FILE],
+            before: 0o100777,
+            after: 0o100333,
+        },
+        at,
+        ucmd,
+    );
+}