Patchwork [3.5.y.z,extended,stable] Patch "hfsplus: fix potential overflow in hfsplus_file_truncate()" has been added to staging queue

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Submitter Luis Henriques
Date April 22, 2013, 12:38 p.m.
Message ID <1366634315-16945-1-git-send-email-luis.henriques@canonical.com>
Download mbox | patch
Permalink /patch/238511/
State New
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Luis Henriques - April 22, 2013, 12:38 p.m.
This is a note to let you know that I have just added a patch titled

    hfsplus: fix potential overflow in hfsplus_file_truncate()

to the linux-3.5.y-queue branch of the 3.5.y.z extended stable tree 
which can be found at:

 http://kernel.ubuntu.com/git?p=ubuntu/linux.git;a=shortlog;h=refs/heads/linux-3.5.y-queue

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.5.y.z tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Luis

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From 274d21c0f1effca23b68bfcd98fed098eecb4d6f Mon Sep 17 00:00:00 2001
From: Vyacheslav Dubeyko <slava@dubeyko.com>
Date: Wed, 17 Apr 2013 15:58:33 -0700
Subject: [PATCH] hfsplus: fix potential overflow in hfsplus_file_truncate()

commit 12f267a20aecf8b84a2a9069b9011f1661c779b4 upstream.

Change a u32 to loff_t hfsplus_file_truncate().

Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Luis Henriques <luis.henriques@canonical.com>
---
 fs/hfsplus/extents.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--
1.8.1.2

Patch

diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
index 5849e3e..32b12e5 100644
--- a/fs/hfsplus/extents.c
+++ b/fs/hfsplus/extents.c
@@ -517,7 +517,7 @@  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;

 		res = pagecache_write_begin(NULL, mapping, size, 0,
 						AOP_FLAG_UNINTERRUPTIBLE,