From: Steve Kargl <kargl@gcc.gnu.org>
Date: Sat, 27 Mar 2021 22:02:16 +0000 (-0700)
Subject: fortran: Fix off-by-one in buffer sizes.
X-Git-Tag: upstream/12.2.0~9081
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=01685676a9309bc0b8b2f4697c23bd6aa0e00d5d;p=platform%2Fupstream%2Fgcc.git

fortran: Fix off-by-one in buffer sizes.

gcc/fortran/ChangeLog:

	* misc.c (gfc_typename): Fix off-by-one in buffer sizes.
---

diff --git a/gcc/fortran/misc.c b/gcc/fortran/misc.c
index 8a96243..3d449ae1 100644
--- a/gcc/fortran/misc.c
+++ b/gcc/fortran/misc.c
@@ -124,8 +124,10 @@ gfc_basic_typename (bt type)
 const char *
 gfc_typename (gfc_typespec *ts, bool for_hash)
 {
-  static char buffer1[GFC_MAX_SYMBOL_LEN + 7];  /* 7 for "TYPE()" + '\0'.  */
-  static char buffer2[GFC_MAX_SYMBOL_LEN + 7];
+  /* Need to add sufficient padding for "TYPE()" + '\0', "UNION()" + '\0',
+     or "CLASS()" + '\0'.  */
+  static char buffer1[GFC_MAX_SYMBOL_LEN + 8];
+  static char buffer2[GFC_MAX_SYMBOL_LEN + 8];
   static int flag = 0;
   char *buffer;
   gfc_typespec *ts1;