Fix PR#66. Solution: add error checking around l_divmod() calls in
long_pow().
diff --git a/Objects/longobject.c b/Objects/longobject.c
index 9f605a1..0aecf8f 100644
--- a/Objects/longobject.c
+++ b/Objects/longobject.c
@@ -1350,7 +1350,11 @@
temp = (PyLongObject *)long_mul(z, a);
Py_DECREF(z);
if ((PyObject*)c!=Py_None && temp!=NULL) {
- l_divmod(temp, c, &div, &mod);
+ if (l_divmod(temp,c,&div,&mod) < 0) {
+ Py_DECREF(temp);
+ z = NULL;
+ goto error;
+ }
Py_XDECREF(div);
Py_DECREF(temp);
temp = mod;
@@ -1365,7 +1369,11 @@
temp = (PyLongObject *)long_mul(a, a);
Py_DECREF(a);
if ((PyObject*)c!=Py_None && temp!=NULL) {
- l_divmod(temp, c, &div, &mod);
+ if (l_divmod(temp, c, &div, &mod) < 0) {
+ Py_DECREF(temp);
+ z = NULL;
+ goto error;
+ }
Py_XDECREF(div);
Py_DECREF(temp);
temp = mod;
@@ -1382,11 +1390,17 @@
}
Py_XDECREF(a);
if ((PyObject*)c!=Py_None && z!=NULL) {
- l_divmod(z, c, &div, &mod);
+ if (l_divmod(z, c, &div, &mod) < 0) {
+ Py_DECREF(z);
+ z = NULL;
+ }
+ else {
Py_XDECREF(div);
Py_DECREF(z);
- z=mod;
+ z = mod;
+ }
}
+ error:
return (PyObject *)z;
}