From de4f4701259c3b87736343fa88a3b0cd02350afd Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Tue, 11 Sep 2012 00:36:26 +0000
Subject: [PATCH] Fix buffer overflow.

llvm-svn: 163578
---
 clang/lib/AST/CommentCommandTraits.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/clang/lib/AST/CommentCommandTraits.cpp b/clang/lib/AST/CommentCommandTraits.cpp
index 26e2dee3a26f..ba0aa9ae12ef 100644
--- a/clang/lib/AST/CommentCommandTraits.cpp
+++ b/clang/lib/AST/CommentCommandTraits.cpp
@@ -32,9 +32,9 @@ const CommandInfo *CommandTraits::getCommandInfo(unsigned CommandID) const {
 }
 
 const CommandInfo *CommandTraits::registerUnknownCommand(StringRef CommandName) {
-  char *Name = Allocator.Allocate<char>(CommandName.size());
+  char *Name = Allocator.Allocate<char>(CommandName.size() + 1);
   memcpy(Name, CommandName.data(), CommandName.size());
-  Name[CommandName.size() + 1] = '\0';
+  Name[CommandName.size()] = '\0';
 
   // Value-initialize (=zero-initialize in this case) a new CommandInfo.
   CommandInfo *Info = new (Allocator) CommandInfo();