Issue #27830: Fix _PyObject_FastCallKeywords()

vstinner · vstinner · commit f7507dd3e8ec · 2016-08-25T01:00:31.000+02:00
Pass stack, not unrelated and uninitialized args!
diff --git a/Objects/abstract.c b/Objects/abstract.c
@@ -2365,7 +2365,7 @@ _PyObject_FastCallKeywords(PyObject *func, PyObject **stack, Py_ssize_t nargs,
     }
 
     if (PyCFunction_Check(func) && nkwargs == 0) {
-        return _PyCFunction_FastCallDict(func, args, nargs, NULL);
+        return _PyCFunction_FastCallDict(func, stack, nargs, NULL);
     }
 
     /* Slow-path: build temporary tuple and/or dict */

Original file line number	Diff line number	Diff line change
`@@ -2365,7 +2365,7 @@ _PyObject_FastCallKeywords(PyObject func, PyObject *stack, Py_ssize_t nargs,`
`2365`	`2365`	`}`
`2366`	`2366`
`2367`	`2367`	`if (PyCFunction_Check(func) && nkwargs == 0) {`
`2368`		`- return _PyCFunction_FastCallDict(func, args, nargs, NULL);`
	`2368`	`+ return _PyCFunction_FastCallDict(func, stack, nargs, NULL);`
`2369`	`2369`	`}`
`2370`	`2370`
`2371`	`2371`	`/* Slow-path: build temporary tuple and/or dict */`