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

diff --git a/Objects/longobject.c b/Objects/longobject.c
index cc4ceec21aaca6657b00f2d7e2683f71d2f03f3f..e1f6a6402841b4065a49d0f3801c37ac71f6daea 100644 (file)
--- 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;
     }