Re: [PATCH] net: wimax/i2400m: fix NULL-deref at probe

From: David Miller
Date: Mon Mar 13 2017 - 15:29:34 EST


From: Johan Hovold <johan@xxxxxxxxxx>
Date: Mon, 13 Mar 2017 13:42:03 +0100

> Make sure to check the number of endpoints to avoid dereferencing a
> NULL-pointer or accessing memory beyond the endpoint array should a
> malicious device lack the expected endpoints.
>
> The endpoints are specifically dereferenced in the i2400m_bootrom_init
> path during probe (e.g. in i2400mu_tx_bulk_out).
>
> Fixes: f398e4240fce ("i2400m/USB: probe/disconnect, dev init/shutdown
> and reset backends")
> Cc: Inaky Perez-Gonzalez <inaky@xxxxxxxxxxxxxxx>
>
> Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>

Applied.