From 0a84e90eea0f3b6b7593ea5d554ada224b8c1725 Mon Sep 17 00:00:00 2001
From: Vladimir Kozlov <kvn@openjdk.org>
Date: Wed, 23 May 2012 12:11:25 -0700
Subject: [PATCH] 7158801: Improve VM CompileOnly option

Fixed buffer overflow during parsing flags -XX:CompileCommand=, -XX:CompileOnly= and command lines in .hotspot_compiler file.

Reviewed-by: never
---
 hotspot/src/share/vm/compiler/compilerOracle.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hotspot/src/share/vm/compiler/compilerOracle.cpp b/hotspot/src/share/vm/compiler/compilerOracle.cpp
index 07bc969b872..ce78ccbb501 100644
--- a/hotspot/src/share/vm/compiler/compilerOracle.cpp
+++ b/hotspot/src/share/vm/compiler/compilerOracle.cpp
@@ -572,7 +572,7 @@ void CompilerOracle::parse_from_file() {
   char token[1024];
   int  pos = 0;
   int  c = getc(stream);
-  while(c != EOF) {
+  while(c != EOF && pos < (sizeof(token)-1)) {
     if (c == '\n') {
       token[pos++] = '\0';
       parse_from_line(token);
@@ -593,7 +593,7 @@ void CompilerOracle::parse_from_string(const char* str, void (*parse_line)(char*
   int  pos = 0;
   const char* sp = str;
   int  c = *sp++;
-  while (c != '\0') {
+  while (c != '\0' && pos < (sizeof(token)-1)) {
     if (c == '\n') {
       token[pos++] = '\0';
       parse_line(token);