commit 04d4692579cc4e0204c7fbced3692f8aa4bbb857
author Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com> Wed Jun 26 14:20:09 2019 -0700
committer GitHub <noreply@github.com> Wed Jun 26 14:20:09 2019 -0700
tree 641e0af4cab05291936f074e20927998d0149622
parent 5c4ce3e2fa73125fb6f9c501e6c4c8512216b7e1

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


Use Py_ssize_t instead of int for i.
(cherry picked from commit d52a83a3d471ff3c7e9ebfa1731765e5334f7c24)

Co-authored-by: Zackery Spytz <zspytz@gmail.com>

Modules/posixmodule.c

diff --git a/Modules/posixmodule.c b/Modules/posixmodule.c
index 2d68c9d..70b1536 100644
--- a/Modules/posixmodule.c
+++ b/Modules/posixmodule.c
@@ -5380,7 +5380,7 @@
         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)) {