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5041655: (ch) FileLock: negative param and overflow issues

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Reviewed-by: alanb
This commit is contained in:
Brian Burkhalter 2022-02-22 17:24:15 +00:00
parent 7feabee426
commit 6445ee46b5
9 changed files with 247 additions and 45 deletions
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9
src/java.base/windows/classes/sun/nio/ch/WindowsAsynchronousFileChannelImpl.java
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@ -1,5 +1,5 @@
/*
* Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2008, 2022, 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
@ -299,8 +299,10 @@ public class WindowsAsynchronousFileChannelImpl
if (!shared && !writing)
throw new NonWritableChannelException();
long len = (size != 0) ? size : Long.MAX_VALUE - Math.max(0, position);
// add to lock table
FileLockImpl fli = addToFileLockTable(position, size, shared);
FileLockImpl fli = addToFileLockTable(position, len, shared);
if (fli == null) {
Throwable exc = new ClosedChannelException();
if (handler == null)
@ -332,6 +334,9 @@ public class WindowsAsynchronousFileChannelImpl
if (!shared && !writing)
throw new NonWritableChannelException();
if (size == 0)
size = Long.MAX_VALUE - Math.max(0, position);
// add to lock table
final FileLockImpl fli = addToFileLockTable(position, size, shared);
if (fli == null)