Re: [PATCH] net: usb: asix: fill null-ptr-deref in asix_suspend

From: Oliver Neukum
Date: Mon Nov 06 2017 - 10:25:08 EST


Am Montag, den 06.11.2017, 13:30 +0100 schrieb Andrey Konovalov:
> On Mon, Nov 6, 2017 at 10:49 AM, Oliver Neukum <oneukum@xxxxxxxx> wrote:
> >
> >
> > 2. Will a device work after that? The appropriate fix may be to wait
> > until the device is properly initialized.
>
> This shouldn't affect real devices as far as I understand. The crash
> can be caused by a crafted malicious device.

Hi!

Hm. That seems strange as driver_priv is kmalloced. Do you
still have a descriptor that causes this?
Shouldn't we rather reject such a broken device?

Regards
Oliver