bpo-46407: Fix long_mod refleak (GH-31025)

Fidget-Spinner · web-flow · commit 768569325abc · 2022-01-31T11:41:14.000+01:00
diff --git a/Objects/longobject.c b/Objects/longobject.c
@@ -2744,7 +2744,7 @@ long_rem(PyLongObject *a, PyLongObject *b, PyLongObject **prem)
     }
     else {
         /* Slow path using divrem. */
-        x_divrem(a, b, prem);
+        Py_XDECREF(x_divrem(a, b, prem));
         if (*prem == NULL)
             return -1;
     }

Original file line number	Diff line number	Diff line change
`@@ -2744,7 +2744,7 @@ long_rem(PyLongObject a, PyLongObject b, PyLongObject **prem)`
`2744`	`2744`	`}`
`2745`	`2745`	`else {`
`2746`	`2746`	`/* Slow path using divrem. */`
`2747`		`- x_divrem(a, b, prem);`
	`2747`	`+ Py_XDECREF(x_divrem(a, b, prem));`
`2748`	`2748`	`if (*prem == NULL)`
`2749`	`2749`	`return -1;`
`2750`	`2750`	`}`