Re: [PATCH net,stable] net: qmi_wwan: fix divide by 0 on bad descriptors

2017-11-07 Thread David Miller
From: Bjørn Mork Date: Mon, 6 Nov 2017 15:32:18 +0100 > A CDC Ethernet functional descriptor with wMaxSegmentSize = 0 will > cause a divide error in usbnet_probe: > > divide error: [#1] PREEMPT SMP KASAN ... > Fix by simply ignoring the bogus descriptor, as it is optional > for QMI device

[PATCH net,stable] net: qmi_wwan: fix divide by 0 on bad descriptors

2017-11-06 Thread Bjørn Mork
A CDC Ethernet functional descriptor with wMaxSegmentSize = 0 will cause a divide error in usbnet_probe: divide error: [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 24 Comm: kworker/0:1 Not tainted 4.14.0-rc8-44453-g1fdc1a82c34f #56 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996