From: "J. Bruce Fields" <bfields-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
To: Pavel Shilovsky <piastry-7qunaywFIewox3rIn2DAYQ@public.gmane.org>
Cc: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
linux-cifs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
wine-devel-5vRYHf7vrtgdnm+yROfE0A@public.gmane.org,
linux-nfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH 0/3] Add O_DENY* flags to fcntl and cifs
Date: Mon, 10 Dec 2012 11:41:16 -0500 [thread overview]
Message-ID: <20121210164116.GC13327@fieldses.org> (raw)
In-Reply-To: <495d17310e0a687d446afc86def0f058-Gr3b2bv8/haq3CaADJ+gRi8mxiWnj2XH@public.gmane.org>
On Sat, Dec 08, 2012 at 12:43:14AM +0400, Pavel Shilovsky wrote:
> The problem is the possibility of denial-of-service attacks here. We
> can try to prevent them by:
> 1) specifying an extra security bit on the file that indicates that
> share flags are accepted (like we have for mandatory locks now) and
> setting it for neccessary files only, or
> 2) adding a special mount option (but it it probably makes sense if
> we decided to add this support for CIFS and NFS only).
In the case of knfsd and samba exporting a common filesystem, you'd also
want to be able to enforce it on the exported filesystem.
--b.
next prev parent reply other threads:[~2012-12-10 16:41 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-06 18:26 [PATCH 0/3] Add O_DENY* flags to fcntl and cifs Pavel Shilovsky
2012-12-06 18:26 ` [PATCH 2/3] CIFS: Add O_DENY* open flags support Pavel Shilovsky
2012-12-06 18:26 ` [PATCH 3/3] CIFS: Use NT_CREATE_ANDX command for forcemand mounts Pavel Shilovsky
[not found] ` <1354818391-7968-1-git-send-email-piastry-7qunaywFIewox3rIn2DAYQ@public.gmane.org>
2012-12-06 18:26 ` [PATCH 1/3] fcntl: Introduce new O_DENY* open flags for network filesystems Pavel Shilovsky
2012-12-06 19:49 ` [PATCH 0/3] Add O_DENY* flags to fcntl and cifs Alan Cox
2012-12-06 19:57 ` Jeremy Allison
2012-12-06 20:13 ` Jeremy Allison
2012-12-06 21:31 ` Theodore Ts'o
[not found] ` <20121206213133.GB4821-AKGzg7BKzIDYtjvyW6yDsg@public.gmane.org>
2012-12-06 21:33 ` Jeremy Allison
2012-12-06 21:37 ` Theodore Ts'o
[not found] ` <20121206213727.GC4821-AKGzg7BKzIDYtjvyW6yDsg@public.gmane.org>
2012-12-06 21:39 ` Jeremy Allison
2012-12-07 14:29 ` Steve French
[not found] ` <CAH2r5msoPiu7wz-HjnnqTxeBLVEQiMYSnLMaZ+dEr11j6Fo4Ew-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-12-07 14:30 ` Steve French
2012-12-07 16:34 ` Alan Cox
2012-12-07 9:08 ` Pavel Shilovsky
[not found] ` <CAKywueQ3d=wdq2nw5f-QS-D9PY70Axa3Cn0gi5GRk4Xso+iquA-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-12-07 14:52 ` J. Bruce Fields
[not found] ` <20121207145206.GF17115-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2012-12-07 15:37 ` simo
2012-12-07 16:09 ` J. Bruce Fields
2012-12-07 16:16 ` Christoph Hellwig
[not found] ` <20121207161602.GA17710-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2012-12-07 20:43 ` Pavel Shilovsky
[not found] ` <495d17310e0a687d446afc86def0f058-Gr3b2bv8/haq3CaADJ+gRi8mxiWnj2XH@public.gmane.org>
2012-12-07 21:35 ` Alan Cox
2012-12-10 16:41 ` J. Bruce Fields [this message]
[not found] ` <20121210164116.GC13327-uC3wQj2KruNg9hUCZPvPmw@public.gmane.org>
2012-12-11 13:11 ` Jeff Layton
2012-12-07 23:55 ` Myklebust, Trond
2012-12-12 8:34 ` David Laight
[not found] ` <20121212083401.GW5010-y8aDsudeyGZKtrsfIrZdgrVCufUGDwFn@public.gmane.org>
2012-12-14 14:12 ` Pavel Shilovsky
[not found] ` <CAKywueSN++ZCNJ1zbET_axuwXd2ZujvSof9H82E3AdeZWY_BgQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-12-14 15:30 ` Alan Cox
[not found] ` <20121214153000.62af6cbc-38n7/U1jhRXW96NNrWNlrekiAK3p4hvP@public.gmane.org>
2012-12-14 19:19 ` Steve French
[not found] ` <CAH2r5muRyB2529EcQXFysrSDpMKe0m3JfiEc5929O6oTmG-ThQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2012-12-17 15:36 ` J. Bruce Fields
-- strict thread matches above, loose matches on Subject: below --
2012-11-21 14:25 Pavel Shilovsky
[not found] ` <1353507930-10908-1-git-send-email-piastry-7qunaywFIewox3rIn2DAYQ@public.gmane.org>
2012-11-21 14:47 ` Pavel Shilovsky
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