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 > > > > -- > > To unsubscribe from this list: send the line "unsubscribe linux-usb" in > > the body of a message to majordomo@xxxxxxxxxxxxxxx > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
