linux-kernel - [PATCH 4.4 126/137] ovl: root: copy attr

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Message-Id: <20160224033421.392946508@linuxfoundation.org>
Date:	Tue, 23 Feb 2016 19:34:17 -0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Miklos Szeredi <miklos@...redi.hu>
Subject: [PATCH 4.4 126/137] ovl: root: copy attr

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Miklos Szeredi <miklos@...redi.hu>

commit ed06e069775ad9236087594a1c1667367e983fb5 upstream.

We copy i_uid and i_gid of underlying inode into overlayfs inode.  Except
for the root inode.

Fix this omission.

Signed-off-by: Miklos Szeredi <miklos@...redi.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/overlayfs/super.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/fs/overlayfs/super.c
+++ b/fs/overlayfs/super.c
@@ -1053,6 +1053,9 @@ static int ovl_fill_super(struct super_b
 
 	root_dentry->d_fsdata = oe;
 
+	ovl_copyattr(ovl_dentry_real(root_dentry)->d_inode,
+		     root_dentry->d_inode);
+
 	sb->s_magic = OVERLAYFS_SUPER_MAGIC;
 	sb->s_op = &ovl_super_operations;
 	sb->s_root = root_dentry;