[Python-checkins] closes bpo-34474: Python/bltinmodule.c: Add missing NULL check in builtin_sum_impl() (GH-8872)

Miss Islington (bot) webhook-mailer at python.org
Fri Aug 24 01:13:22 EDT 2018


https://github.com/python/cpython/commit/45ee452751d095d665717bafb61cfd7c65b729b4
commit: 45ee452751d095d665717bafb61cfd7c65b729b4
branch: 2.7
author: Miss Islington (bot) <31488909+miss-islington at users.noreply.github.com>
committer: GitHub <noreply at github.com>
date: 2018-08-24T01:13:19-04:00
summary:

closes bpo-34474: Python/bltinmodule.c: Add missing NULL check in builtin_sum_impl() (GH-8872)


Reported by Svace static analyzer.
(cherry picked from commit 2b824b2538c4a5f9f520c5de8a1eae5a0c181a94)

Co-authored-by: Alexey Izbyshev <izbyshev at ispras.ru>

files:
M Python/bltinmodule.c

diff --git a/Python/bltinmodule.c b/Python/bltinmodule.c
index f19115d2cb3f..21f6e66d82e1 100644
--- a/Python/bltinmodule.c
+++ b/Python/bltinmodule.c
@@ -2401,6 +2401,11 @@ builtin_sum(PyObject *self, PyObject *args)
                 continue;
             }
             result = PyFloat_FromDouble(f_result);
+            if (result == NULL) {
+                Py_DECREF(item);
+                Py_DECREF(iter);
+                return NULL;
+            }
             temp = PyNumber_Add(result, item);
             Py_DECREF(result);
             Py_DECREF(item);



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