Protect PyErr_Format format string argument from overflow (ironically,

the error was about a bad format string :-).

diff --git a/Python/getargs.c b/Python/getargs.c
index 296a3aa2c7ccad815b05ab95f933d4897f22d2f3..7bc150d1e470c5e45bb63e31e42ee92c575bded3 100644 (file)
--- a/Python/getargs.c
+++ b/Python/getargs.c
@@ -261,7 +261,7 @@ vgetargs1(args, format, p_va, compat)
            *format != '(' &&
            *format != '|' && *format != ':' && *format != ';') {
                PyErr_Format(PyExc_SystemError,
-                            "bad format string: %s", formatsave);
+                            "bad format string: %.200s", formatsave);
                return 0;
        }