From: Theodore Ts'o <tytso@mit.edu>
Date: Mon, 17 Feb 2014 00:29:32 +0000 (-0500)
Subject: ext4: don't leave i_crtime.tv_sec uninitialized
X-Git-Tag: v3.13.6~159
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1883d769bbf9701b7f93ac8d5e8a44612aa894f9;p=thirdparty%2Fkernel%2Fstable.git

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@oracle.com>
Tested-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index ece55565b9cd3..d3a534fdc5ff6 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -771,6 +771,8 @@ 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);	       \