From: Jouni Malinen <j@w1.fi>
To: Johannes Berg <johannes@sipsolutions.net>
Cc: Jouni Malinen <jouni.malinen@atheros.com>,
"John W. Linville" <linville@tuxdriver.com>,
linux-wireless@vger.kernel.org
Subject: Re: [PATCH] ath9k: Fix a NULL pointer dereference in ath_rate_get
Date: Wed, 17 Dec 2008 14:02:50 +0200 [thread overview]
Message-ID: <20081217120250.GA19453@jm.kir.nu> (raw)
In-Reply-To: <1229513456.4566.2.camel@localhost>
On Wed, Dec 17, 2008 at 12:30:56PM +0100, Johannes Berg wrote:
> On Wed, 2008-12-17 at 13:30 +0200, Jouni Malinen wrote:
> > It looks like mac80211 may try to send unicast frames to a STA that
> > does not have a STA entry. We need to make sure that that is caught in
> > the rate control code before dereferencing STA data.
>
> This should only happen for injected packets, can you verify? OTOH, AP
> mode obviously has injected packets (auth response, ...)
I did not check what the exact frame was, but this was indeed in AP mode
and the frame was most likely from hostapd and as such, an injected
packet.
--
Jouni Malinen PGP id EFC895FA
next prev parent reply other threads:[~2008-12-17 12:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-12-17 11:30 [PATCH] ath9k: Fix a NULL pointer dereference in ath_rate_get Jouni Malinen
2008-12-17 11:30 ` Johannes Berg
2008-12-17 12:02 ` Jouni Malinen [this message]
2008-12-17 12:25 ` Christian Lamparter
2008-12-17 12:21 ` Johannes Berg
2008-12-17 13:02 ` Christian Lamparter
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