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Re: [PATCH] cfg80211: fix NULL ptr deref

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On Fri, Oct 30, 2009 at 11:40 PM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
>  commit 211a4d12abf86fe0df4cd68fc6327cbb58f56f81
>  Author: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
>  Date:   Tue Oct 20 15:08:53 2009 +0900
>
>      cfg80211: sme: deauthenticate on assoc failure
>
> introduced a potential NULL pointer dereference that
> some people have been hitting for some reason -- the
> params.bssid pointer is not guaranteed to be non-NULL
> for what seems to be a race between various ways of
> reaching the same thing.
>
> While I'm trying to analyse the problem more let's
> first fix the crash. I think the real fix may be to
> avoid doing _anything_ if it ended up being NULL, but
> right now I'm not sure yet.
>
> I think
> http://bugzilla.kernel.org/show_bug.cgi?id=14342
> might also be this issue.
>
> Reported-by: Parag Warudkar <parag.lkml@xxxxxxxxx>
> Tested-by: Parag Warudkar <parag.lkml@xxxxxxxxx>
> Signed-off-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>

Do we know if this will also affect 2.6.32?

  Luis
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