Introduce an upper bound on tuple nesting depth in

C argument format strings; fixes rest of #1523610.
2006-08-09 07:03:22 +00:00 · 2006-08-09 07:03:22 +00:00 · 209307eb3b
parent 8e24a9678f
commit 209307eb3b
1 changed files with 3 additions and 0 deletions
--- 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)