2.6.39-stable review patch. If anyone has any objections, please let us know.
------------------
From: Amir Goldstein <amir7...@gmail.com>
commit 0b26859027ce0005ef89520af20351360e51ad76 upstream.
If quota is not enabled when ext4_quota_off() is called, we must not
dereference quota file inode since it is NULL. Check properly for
this.
This fixes a bug in commit 21f976975cbe (ext4: remove unnecessary
[cm]time update of quota file), which was merged for 2.6.39-rc3.
Reported-by: Amir Goldstein <amir7...@users.sf.net>
Signed-off-by: Amir Goldstein <amir7...@users.sf.net>
Signed-off-by: Jan Kara <j...@suse.cz>
Signed-off-by: "Theodore Ts'o" <ty...@mit.edu>
Cc: Chris Dunlop <ch...@onthe.net.au>
Signed-off-by: Greg Kroah-Hartman <gre...@suse.de>
---
fs/ext4/super.c | 3 +++
1 file changed, 3 insertions(+)
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -4635,6 +4635,9 @@ static int ext4_quota_off(struct super_b
if (test_opt(sb, DELALLOC))
sync_filesystem(sb);
+ if (!inode)
+ goto out;
+
/* Update modification times of quota files when userspace can
* start looking at them */
handle = ext4_journal_start(inode, 1);
_______________________________________________
stable mailing list
stable@linux.kernel.org
http://linux.kernel.org/mailman/listinfo/stable
