From: liqingqing <liqingqing3@huawei.com>
Date: Thu, 7 Nov 2019 00:26:54 +0000 (+0000)
Subject: math: enhance the endloop condition of function handle_input_flag
X-Git-Tag: glibc-2.31~282
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=dae7bf38978294f7d1aeece7f31c738281a3ba04;p=thirdparty%2Fglibc.git

math: enhance the endloop condition of function handle_input_flag

In the function handle_input_flag, the end-loop condition is not
correct, because when the loop variable i equals 16
(num_input_flag_types), then input_flags[16] will be out of bounds.
(This issue is only relevant with invalid input files to
gen-auto-libm-tests.)
---

diff --git a/math/gen-auto-libm-tests.c b/math/gen-auto-libm-tests.c
index f15af29a4e0..08684c4646d 100644
--- a/math/gen-auto-libm-tests.c
+++ b/math/gen-auto-libm-tests.c
@@ -1298,7 +1298,7 @@ handle_input_flag (char *arg, input_flag *flag,
   char c = *ep;
   *ep = 0;
   bool found = false;
-  for (input_flag_type i = flag_first_flag; i <= num_input_flag_types; i++)
+  for (input_flag_type i = flag_first_flag; i < num_input_flag_types; i++)
     {
       if (strcmp (arg, input_flags[i]) == 0)
 	{