commit d52a83a3d471ff3c7e9ebfa1731765e5334f7c24
author Zackery Spytz <zspytz@gmail.com> Wed Jun 26 14:54:20 2019 -0600
committer Pablo Galindo <Pablogsal@gmail.com> Wed Jun 26 21:54:19 2019 +0100
tree 0d5021501766a6a3e33b02c3dc2e832e3c49f461
parent 7213df7bbfd85378c6e42e1ac63144d5974bdcf6

bpo-37419: Fix possible segfaults when passing large sequences to os.posix_spawn() (GH-14409)

Use Py_ssize_t instead of int for i.

Modules/posixmodule.c

diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 5134ed7..5f17fce 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -5377,7 +5377,7 @@
         return -1;
     }
 
-    for (int i = 0; i < PySequence_Fast_GET_SIZE(seq); ++i) {
+    for (Py_ssize_t i = 0; i < PySequence_Fast_GET_SIZE(seq); ++i) {
         file_action = PySequence_Fast_GET_ITEM(seq, i);
         Py_INCREF(file_action);
         if (!PyTuple_Check(file_action) || !PyTuple_GET_SIZE(file_action)) {