From: Eli Friedman <eli.friedman@gmail.com>
Date: Tue, 11 Sep 2012 00:36:26 +0000 (+0000)
Subject: Fix buffer overflow.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=116bb09882bc1c9281cd84dd07496201feb18d18;p=clang

Fix buffer overflow.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163578 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/CommentCommandTraits.cpp b/lib/AST/CommentCommandTraits.cpp
index 26e2dee3a2..ba0aa9ae12 100644
--- a/lib/AST/CommentCommandTraits.cpp
+++ b/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();