From 142ad666dc68e2b4309b859802c4e57734b97a94 Mon Sep 17 00:00:00 2001
From: Georg Brandl <georg@python.org>
Date: Mon, 14 Oct 2013 07:01:11 +0200
Subject: [PATCH] Re #18521: move array bounds check before array access.

---
 Python/getargs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Python/getargs.c b/Python/getargs.c
index 2c2628f9a12..9d727523201 100644
--- a/Python/getargs.c
+++ b/Python/getargs.c
@@ -376,7 +376,7 @@ seterror(Py_ssize_t iarg, const char *msg, int *levels, const char *fname,
                           "argument %" PY_FORMAT_SIZE_T "d", iarg);
             i = 0;
             p += strlen(p);
-            while (levels[i] > 0 && i < 32 && (int)(p-buf) < 220) {
+            while (i < 32 && levels[i] > 0 && (int)(p-buf) < 220) {
                 PyOS_snprintf(p, sizeof(buf) - (p - buf),
                               ", item %d", levels[i]-1);
                 p += strlen(p);