linux-kernel - Re: [PATCH v2 3/9] serial: imx: Fix out-of-bounds access through serial port index

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Message-ID: <20180223135129.lvk3rgepyuik7a2y@pengutronix.de>
Date:   Fri, 23 Feb 2018 14:51:29 +0100
From:   Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
To:     Geert Uytterhoeven <geert+renesas@...der.be>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Barry Song <baohua@...nel.org>,
        Vineet Gupta <vgupta@...opsys.com>,
        Jiri Slaby <jslaby@...e.com>,
        Michal Simek <michal.simek@...inx.com>,
        linux-serial@...r.kernel.org, linux-snps-arc@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/9] serial: imx: Fix out-of-bounds access through
 serial port index

On Fri, Feb 23, 2018 at 02:38:31PM +0100, Geert Uytterhoeven wrote:
> The imx_ports[] array is indexed using a value derived from the
> "serialN" alias in DT, or from platform data, which may lead to an
> out-of-bounds access.
> 
> Fix this by adding a range check.
> 
> Fixes: ff05967a07225ab6 ("serial/imx: add of_alias_get_id() reference back")
> Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@...gutronix.de>

Thanks for your time
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |