python
diff --git a/‎Lib/test/test_yield_from.py
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diff --git a/‎Misc/NEWS.d/next/Core_and_Builtins/2024-11-03-15-15-36.gh-issue-126366.8BBdGU.rst
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diff --git a/‎Python/bytecodes.c
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+3-2Lines changed: 3 additions & 2 deletions b/‎Python/bytecodes.c
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+3-2Lines changed: 3 additions & 2 deletions
diff --git a/‎Python/executor_cases.c.h
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+3-2Lines changed: 3 additions & 2 deletions b/‎Python/executor_cases.c.h
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+3-2Lines changed: 3 additions & 2 deletions
diff --git a/‎Python/generated_cases.c.h
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diff --git a/‎Tools/jit/ignore-tests-emulated-linux.txt
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@@ -1576,6 +1576,19 @@ def outer():
             self.assertIsNone(caught.exception.__context__)
             self.assert_stop_iteration(g)
 
+    def test_throws_in_iter(self):
+        # See GH-126366: NULL pointer dereference if __iter__
+        # threw an exception.
+        class Silly:
+            def __iter__(self):
+                raise RuntimeError("nobody expects the spanish inquisition")
+
+        def my_generator():
+            yield from Silly()
+
+        with self.assertRaisesRegex(RuntimeError, "nobody expects the spanish inquisition"):
+            next(iter(my_generator()))
+
 
 if __name__ == '__main__':
     unittest.main()
@@ -0,0 +1,2 @@
+Fix crash when using ``yield from`` on an object that raises an exception in
+its ``__iter__``.
@@ -2811,11 +2811,12 @@ dummy_func(
             }
             else {
                 /* `iterable` is not a generator. */
-                iter = PyStackRef_FromPyObjectSteal(PyObject_GetIter(iterable_o));
+                PyObject *iter_o = PyObject_GetIter(iterable_o);
                 DEAD(iterable);
-                if (PyStackRef_IsNull(iter)) {
+                if (iter_o == NULL) {
                     ERROR_NO_POP();
                 }
+                iter = PyStackRef_FromPyObjectSteal(iter_o);
                 DECREF_INPUTS();
             }
         }
 
@@ -71,6 +71,7 @@ test.test_socket.RecvmsgSCMRightsStreamTest.testCmsgTruncLen1
 test.test_socket.RecvmsgSCMRightsStreamTest.testCmsgTruncLen2Minus1
 test.test_subprocess.POSIXProcessTestCase.test_exception_bad_args_0
 test.test_subprocess.POSIXProcessTestCase.test_exception_bad_executable
+test.test_subprocess.POSIXProcessTestCase.test_vfork_used_when_expected
 test.test_subprocess.ProcessTestCase.test_cwd_with_relative_arg
 test.test_subprocess.ProcessTestCase.test_cwd_with_relative_executable
 test.test_subprocess.ProcessTestCase.test_empty_env
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,2 @@`
	`1`	+Fix crash when using ``yield from`` on an object that raises an exception in
	`2`	+its ``__iter__``.
Original file line number	Diff line number	Diff line change
`@@ -2811,11 +2811,12 @@ dummy_func(`
`2811`	`2811`	`}`
`2812`	`2812`	`else {`
`2813`	`2813`	/* `iterable` is not a generator. */
`2814`		`- iter = PyStackRef_FromPyObjectSteal(PyObject_GetIter(iterable_o));`
	`2814`	`+ PyObject *iter_o = PyObject_GetIter(iterable_o);`
`2815`	`2815`	`DEAD(iterable);`
`2816`		`- if (PyStackRef_IsNull(iter)) {`
	`2816`	`+ if (iter_o == NULL) {`
`2817`	`2817`	`ERROR_NO_POP();`
`2818`	`2818`	`}`
	`2819`	`+ iter = PyStackRef_FromPyObjectSteal(iter_o);`
`2819`	`2820`	`DECREF_INPUTS();`
`2820`	`2821`	`}`
`2821`	`2822`	`}`