From: Georg Brandl <georg@python.org>
Date: Wed, 9 Aug 2006 07:03:22 +0000 (+0000)
Subject: Introduce an upper bound on tuple nesting depth in
X-Git-Tag: v2.5c1~117
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=209307eb3bca9aeb9b842014edcfe8df9cbb7f91;p=python

Introduce an upper bound on tuple nesting depth in
C argument format strings; fixes rest of #1523610.
---

diff --git a/Python/getargs.c b/Python/getargs.c
index 508055e690..3fca9cdfce 100644
--- a/Python/getargs.c
+++ b/Python/getargs.c
@@ -206,6 +206,9 @@ vgetargs1(PyObject *args, const char *format, va_list *p_va, int flags)
 			if (level == 0)
 				max++;
 			level++;
+			if (level >= 30)
+				Py_FatalError("too many tuple nesting levels "
+					      "in argument format string");
 			break;
 		case ')':
 			if (level == 0)