From: Martin Liska <mliska@suse.cz>
Date: Fri, 20 Apr 2018 12:55:36 +0000 (+0200)
Subject: Do not overflow string buffer (PR objc/85476).
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fffefbf85f60859c21e6844aa06a0f6ce8cd1cdd;p=gcc.git

Do not overflow string buffer (PR objc/85476).

2018-04-20  Martin Liska  <mliska@suse.cz>

	PR objc/85476
	* objc-act.c (finish_class): Do not overflow string buffer.

From-SVN: r259521
---

diff --git a/gcc/objc/ChangeLog b/gcc/objc/ChangeLog
index d95f3e433aa..63693714d04 100644
--- a/gcc/objc/ChangeLog
+++ b/gcc/objc/ChangeLog
@@ -1,3 +1,8 @@
+2018-04-20  Martin Liska  <mliska@suse.cz>
+
+	PR objc/85476
+	* objc-act.c (finish_class): Do not overflow string buffer.
+
 2018-01-03  Jakub Jelinek  <jakub@redhat.com>
 
 	Update copyright years.
diff --git a/gcc/objc/objc-act.c b/gcc/objc/objc-act.c
index b87f7cc075e..d08693051ea 100644
--- a/gcc/objc/objc-act.c
+++ b/gcc/objc/objc-act.c
@@ -8003,7 +8003,7 @@ finish_class (tree klass)
 		    char *setter_name = (char *) alloca (length);
 		    tree ret_type, selector, arg_type, arg_name;
 
-		    strcpy (setter_name, full_setter_name);
+		    memcpy (setter_name, full_setter_name, length - 1);
 		    setter_name[length - 1] = '\0';
 		    ret_type = build_tree_list (NULL_TREE, void_type_node);
 		    arg_type = build_tree_list (NULL_TREE, TREE_TYPE (x));