On Wed, 2016-08-17 at 14:26 +0300, Binyamin Sharet wrote:
> On 08/16/2016 06:02 PM, Alan Stern wrote:
> > On Tue, 16 Aug 2016, Binyamin Sharet wrote:
> >
> >> Kernel version: raspberrypi 4.4.6-v7+ #871
> >> Driver source file: drivers/net/usb/kaweth.c
> >> Umap2 command line: umap2vsscan -P <PHY> -s 0557:2002
> >>
> >> After connecting such a device, NULL pointer dereference in the kernel
> >> and USB stops responding.
> >>
> >> This issue was reproduced with other VID/PIDs that use this driver.
> >>
> >> Binyamin Sharet
> >> Cisco, STARE-C
> >>
> >> << Attached: 0557_2002_dmesg.log >>
> > This looks like a bug in the kaweth driver. kaweth_probe() assigns
> >
> > kaweth->intf = intf;
> >
> > but it needs to happen much earlier in the routine, probably along with
> > the initializations of kaweth->dev and kaweth->net.
> >
> > Alan Stern
> >
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>
> kernel: 4.8-rc2
> result: not reproduced
>
>
This is getting odd. There have been no substantial changes to kaweth
between v4.4 and v4.8-rc2. I still think Alan's analysis is valid.
Are you sure of your test setup? Same kernel configuration?
Regards
Oliver
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