[3.5.y.z extended stable] Patch "ext4: don't leave i_crtime.tv_sec uninitialized" has been added to staging queue

[Luis Henriques]

This is a note to let you know that I have just added a patch titled

    ext4: don't leave i_crtime.tv_sec uninitialized

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

------

>From 1f2db765af5458d8e9006617cdc4c93454dbb052 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso at mit.edu>
Date: Sun, 16 Feb 2014 19:29:32 -0500
Subject: ext4: don't leave i_crtime.tv_sec uninitialized

commit 19ea80603715d473600cd993b9987bc97d042e02 upstream.

If the i_crtime field is not present in the inode, don't leave the
field uninitialized.

Fixes: ef7f38359 ("ext4: Add nanosecond timestamps")
Reported-by: Vegard Nossum <vegard.nossum at oracle.com>
Tested-by: Vegard Nossum <vegard.nossum at oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso at mit.edu>
Signed-off-by: Luis Henriques <luis.henriques at canonical.com>
---
 fs/ext4/ext4.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 6a83398..4373e10 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -775,6 +775,8 @@ do {									       \
 	if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime))		       \
 		(einode)->xtime.tv_sec = 				       \
 			(signed)le32_to_cpu((raw_inode)->xtime);	       \
+	else								       \
+		(einode)->xtime.tv_sec = 0;				       \
 	if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime ## _extra))	       \
 		ext4_decode_extra_time(&(einode)->xtime,		       \
 				       raw_inode->xtime ## _extra);	       \
--
1.9.0