From: Luciano Coelho <coelho@ti.com>
To: stable@kernel.org
Cc: gregkh@suse.de, linville@tuxdriver.com, linux-wireless@vger.kernel.org
Subject: Re: [PATCH stable] nl80211: fix check for valid SSID size in scan operations
Date: Mon, 06 Jun 2011 22:35:30 +0300 [thread overview]
Message-ID: <1307388930.23002.422.camel@cumari> (raw)
In-Reply-To: <1307388656-19240-1-git-send-email-coelho@ti.com>
On Mon, 2011-06-06 at 22:30 +0300, Luciano Coelho wrote:
> In both trigger_scan and sched_scan operations, we were checking for
> the SSID length before assigning the value correctly. Since the
> memory was just kzalloc'ed, the check was always failing and SSID with
> over 32 characters were allowed to go through.
>
> This was causing a buffer overflow when copying the actual SSID to the
> proper place.
>
> This bug has been there since 2.6.29-rc4.
>
> Backported from commit 208c72f4fe44fe09577e7975ba0e7fa0278f3d03.
>
> Cc: stable@kernel.org
> Signed-off-by: Luciano Coelho <coelho@ti.com>
> Signed-off-by: John W. Linville <linville@tuxdriver.com>
> ---
FWIW, this patch applies cleanly on all stable kernels at least as far
back as 2.6.35, probably even earlier.
--
Cheers,
Luca.
prev parent reply other threads:[~2011-06-06 19:35 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <13073811693022@kroah.org>
2011-06-06 19:30 ` [PATCH stable] nl80211: fix check for valid SSID size in scan operations Luciano Coelho
2011-06-06 19:35 ` Luciano Coelho [this message]
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