All of lore.kernel.org
 help / color / mirror / Atom feed
From: Ian Kent <raven@themaw.net>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	autofs mailing list <autofs@vger.kernel.org>
Subject: [PATCH] autofs - mount point create should honour passed in mode
Date: Fri, 13 Apr 2018 18:38:56 +0800	[thread overview]
Message-ID: <152361593601.8051.14014139124905996173.stgit@pluto.themaw.net> (raw)

The autofs file system mkdir inode operation blindly sets
the created directory mode to S_IFDIR | 0555, ingoring the
passed in mode, which can cause selinux dac_override denials.

But the function also checks if the caller is the daemon (as
no-one else should be able to do anything here) so there's
no point in not honouring the passed in mode, allowing the
daemon to set appropriate mode when required.

Signed-off-by: Ian Kent <raven@themaw.net>
Cc: stable@vger.kernel.org
---
 fs/autofs4/root.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/autofs4/root.c b/fs/autofs4/root.c
index 82e8f6edfb48..b12e37f27530 100644
--- a/fs/autofs4/root.c
+++ b/fs/autofs4/root.c
@@ -749,7 +749,7 @@ static int autofs4_dir_mkdir(struct inode *dir,
 
 	autofs4_del_active(dentry);
 
-	inode = autofs4_get_inode(dir->i_sb, S_IFDIR | 0555);
+	inode = autofs4_get_inode(dir->i_sb, S_IFDIR | mode);
 	if (!inode)
 		return -ENOMEM;
 	d_add(dentry, inode);

                 reply	other threads:[~2018-04-13 10:49 UTC|newest]

Thread overview: [no followups] expand[flat|nested]  mbox.gz  Atom feed

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=152361593601.8051.14014139124905996173.stgit@pluto.themaw.net \
    --to=raven@themaw.net \
    --cc=akpm@linux-foundation.org \
    --cc=autofs@vger.kernel.org \
    --cc=linux-fsdevel@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.