linux-kernel - Re: [PATCH] nfsd: Make creates return EEXIST correctly instead of EPERM

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1469209736-6490-1-git-send-email-bfields@redhat.com>
Date:	Fri, 22 Jul 2016 13:48:49 -0400
From:	"J. Bruce Fields" <bfields@...hat.com>
To:	Oleg Drokin <green@...uxhacker.ru>
Cc:	Jeff Layton <jlayton@...chiereds.net>, linux-nfs@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"J. Bruce Fields" <bfields@...ldses.org>,
	"J. Bruce Fields" <bfields@...hat.com>
Subject: Re: [PATCH] nfsd: Make creates return EEXIST correctly instead of EPERM

From: "J. Bruce Fields" <bfields@...hat.com>

On Fri, Jul 22, 2016 at 11:13:20AM -0400, Oleg Drokin wrote:
> Hm, in fact indeed. I was just too worked up about the client side,
> but on the server side there was a real lookup already, so it does
> look workable.

So I end up with the following.  This is all (after your patch) pretty
trivial cleanup, but I think it's overdue for that code.

--b.

J. Bruce Fields (6):
  nfsd: remove redundant zero-length check from create
  nfsd: remove redundant i_lookup check
  nfsd: reorganize nfsd_create
  nfsd: remove unnecessary positive-dentry check
  nfsd: clean up bad-type check in nfsd_create_locked
  nfsd: drop unnecessary MAY_EXEC check from create

Oleg Drokin (1):
  nfsd: Make creates return EEXIST instead of EACCES

 fs/nfsd/nfs4proc.c |   3 +-
 fs/nfsd/nfsproc.c  |   7 +--
 fs/nfsd/vfs.c      | 131 ++++++++++++++++++++++++-----------------------------
 fs/nfsd/vfs.h      |   3 ++
 4 files changed, 66 insertions(+), 78 deletions(-)

-- 
2.7.4