8006807: C2 crash due to out of bounds array access in Parse::do_multianewarray
Summary: check ndimensions before accessing length[i] element
Reviewed-by: kvn
Contributed-by: volker.simonis@gmail.com
--- a/hotspot/src/share/vm/opto/parse3.cpp Tue Feb 05 08:25:51 2013 -0800
+++ b/hotspot/src/share/vm/opto/parse3.cpp Wed Feb 06 11:33:49 2013 -0800
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
@@ -487,7 +487,8 @@
fun, NULL, TypeRawPtr::BOTTOM,
makecon(TypeKlassPtr::make(array_klass)),
length[0], length[1], length[2],
- length[3], length[4]);
+ (ndimensions > 2) ? length[3] : NULL,
+ (ndimensions > 3) ? length[4] : NULL);
} else {
// Create a java array for dimension sizes
Node* dims = NULL;