linux-kernel - [PATCH 4.3 034/200] ocfs2: fix SGID not inherited issue

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Message-Id: <20160214222218.369829343@linuxfoundation.org>
Date:	Sun, 14 Feb 2016 14:20:41 -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, Junxiao Bi <junxiao.bi@...cle.com>,
	Mark Fasheh <mfasheh@...e.de>,
	Joel Becker <jlbec@...lplan.org>,
	Srinivas Eeda <srinivas.eeda@...cle.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [PATCH 4.3 034/200] ocfs2: fix SGID not inherited issue

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

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

From: Junxiao Bi <junxiao.bi@...cle.com>

commit 854ee2e944b4daf795e32562a7d2f9e90ab5a6a8 upstream.

Commit 8f1eb48758aa ("ocfs2: fix umask ignored issue") introduced an
issue, SGID of sub dir was not inherited from its parents dir.  It is
because SGID is set into "inode->i_mode" in ocfs2_get_init_inode(), but
is overwritten by "mode" which don't have SGID set later.

Fixes: 8f1eb48758aa ("ocfs2: fix umask ignored issue")
Signed-off-by: Junxiao Bi <junxiao.bi@...cle.com>
Cc: Mark Fasheh <mfasheh@...e.de>
Cc: Joel Becker <jlbec@...lplan.org>
Acked-by: Srinivas Eeda <srinivas.eeda@...cle.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/ocfs2/namei.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -369,13 +369,11 @@ static int ocfs2_mknod(struct inode *dir
 		goto leave;
 	}
 
-	status = posix_acl_create(dir, &mode, &default_acl, &acl);
+	status = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
 	if (status) {
 		mlog_errno(status);
 		goto leave;
 	}
-	/* update inode->i_mode after mask with "umask". */
-	inode->i_mode = mode;
 
 	handle = ocfs2_start_trans(osb, ocfs2_mknod_credits(osb->sb,
 							    S_ISDIR(mode),