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From: Luis Carlos Cobo <luisca@cozybit.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Johannes Berg <johannes@sipsolutions.net>,
	John Linville <linville@tuxdriver.com>,
	linux-wireless@vger.kernel.org
Subject: Re: [PATCH 13/18] mac80211: mesh statistics and config through debugfs
Date: Mon, 31 Mar 2008 14:55:56 -0700	[thread overview]
Message-ID: <1207000556.7792.35.camel@localhost> (raw)
In-Reply-To: <20080327231639.fd1264b9.akpm@linux-foundation.org>

On Thu, 2008-03-27 at 23:16 -0700, Andrew Morton wrote:
> - then fix the obvious, trivial, instantly-detectable, very-deadlocka=
ble
>   bug in this patch.  There is just no longer any excuse for this:
>=20
> +	read_lock(&dev_base_lock);
> +	if (copy_from_user(buf, userbuf, buf_size))

=EF=BB=BFAs the author of the patch, I would like to apologize about th=
is.=20

Regarding review quality, I would like to point out that the function
just above this one, ieee80211_if_read(), which has been for a while in
the stable releases, suffers the same problem. That does not excuse
myself though, I should have spotted and fixed it and then implement
ieee80211_if_write() properly. I will send a patch fixing both issues
today.

Again sorry for the mess and thank you for spotting the problem.

--=20
Luis Carlos Cobo Rus       GnuPG ID: 44019B60
cozybit Inc.


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  reply	other threads:[~2008-03-31 21:56 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-23 14:17 [PATCH 00/18] mac80211 802.11s networking code Johannes Berg
2008-02-23 14:17 ` [PATCH 01/18] wireless: various definitions for mesh networking Johannes Berg
2008-02-23 14:17 ` [PATCH 02/18] WEXT: add mesh interface type Johannes Berg
2008-02-23 14:17 ` [PATCH 03/18] nl80211/cfg80211: support for mesh, sta dumping Johannes Berg
2008-02-23 14:17 ` [PATCH 04/18] mac80211: add mesh interface type Johannes Berg
2008-02-23 14:17 ` [PATCH 05/18] mac80211: mesh function and data structures definitions Johannes Berg
2008-02-23 14:17 ` [PATCH 06/18] mac80211: support functions for mesh Johannes Berg
2008-02-23 14:17 ` [PATCH 07/18] mac80211: support for mesh interfaces in mac80211 data path Johannes Berg
2008-02-23 14:17 ` [PATCH 08/18] mac80211: mesh data structures and first mesh changes Johannes Berg
2008-02-23 14:17 ` [PATCH 09/18] mac80211: mesh changes to the MLME Johannes Berg
2008-02-23 14:17 ` [PATCH 10/18] mac80211: mesh peer link implementation Johannes Berg
2008-02-23 14:17 ` [PATCH 11/18] mac80211: mesh path table implementation Johannes Berg
2008-02-23 14:17 ` [PATCH 12/18] mac80211: code for on-demand Hybrid Wireless Mesh Protocol Johannes Berg
2008-02-23 14:17 ` [PATCH 13/18] mac80211: mesh statistics and config through debugfs Johannes Berg
2008-03-28  6:16   ` Andrew Morton
2008-03-31 21:55     ` Luis Carlos Cobo [this message]
2008-03-28  6:38   ` Andrew Morton
2008-03-31 21:48     ` Luis Carlos Cobo
2008-02-23 14:17 ` [PATCH 14/18] mac80211: mesh path and mesh peer configuration Johannes Berg
2008-02-23 14:17 ` [PATCH 15/18] mac80211: complete the mesh (interface handling) code Johannes Berg
2008-02-23 14:17 ` [PATCH 16/18] mac80211: clean up mesh code Johannes Berg
2008-02-23 14:17 ` [PATCH 17/18] mac80211: mesh hwmp locking fixes Johannes Berg
2008-02-25 19:09   ` Luis Carlos Cobo
2008-02-25 19:09     ` Johannes Berg
2008-02-25 19:41       ` Luis Carlos Cobo
2008-02-23 14:17 ` [PATCH 18/18] mac80211: enable mesh in Kconfig Johannes Berg
2008-02-25 20:58   ` Luis Carlos Cobo
2008-02-25 21:24     ` Johannes Berg
2008-02-25 23:27       ` Luis Carlos Cobo

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