linux-kernel - [v2.6.34-stable 079/213] hfsplus: fix potential overflow in hfsplus_file

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Message-ID: <1391630568-49251-80-git-send-email-paul.gortmaker@windriver.com>
Date:	Wed, 5 Feb 2014 15:00:34 -0500
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	<stable@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:	Vyacheslav Dubeyko <slava@...eyko.com>,
	Christoph Hellwig <hch@...radead.org>,
	Al Viro <viro@...iv.linux.org.uk>,
	Hin-Tak Leung <htl10@...rs.sourceforge.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [v2.6.34-stable 079/213] hfsplus: fix potential overflow in hfsplus_file_truncate()

From: Vyacheslav Dubeyko <slava@...eyko.com>

                   -------------------
    This is a commit scheduled for the next v2.6.34 longterm release.
    http://git.kernel.org/?p=linux/kernel/git/paulg/longterm-queue-2.6.34.git
    If you see a problem with using this for longterm, please comment.
                   -------------------

commit 12f267a20aecf8b84a2a9069b9011f1661c779b4 upstream.

Change a u32 to loff_t hfsplus_file_truncate().

Signed-off-by: Vyacheslav Dubeyko <slava@...eyko.com>
Cc: Christoph Hellwig <hch@...radead.org>
Cc: Al Viro <viro@...iv.linux.org.uk>
Cc: Hin-Tak Leung <htl10@...rs.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 fs/hfsplus/extents.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
index 0022eec63cda..b3d234e5b498 100644
--- a/fs/hfsplus/extents.c
+++ b/fs/hfsplus/extents.c
@@ -447,7 +447,7 @@ void hfsplus_file_truncate(struct inode *inode)
 		struct address_space *mapping = inode->i_mapping;
 		struct page *page;
 		void *fsdata;
-		u32 size = inode->i_size;
+		loff_t size = inode->i_size;
 		int res;
 
 		res = pagecache_write_begin(NULL, mapping, size, 0,
-- 
1.8.5.2

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