[ELSA-2020-5710] Unbreakable Enterprise kernel security update

[2.6.39-400.323.1]
- USB: adutux: fix use-after-free on disconnect (Johan Hovold) [Orabug: 31240297] {CVE-2019-19523}
- USB: core: Fix races in character device registration and deregistraion (Alan Stern) [Orabug: 31317669] {CVE-2019-19537}
- USB: iowarrior: fix use-after-free on disconnect (Johan Hovold) [Orabug: 31351064] {CVE-2019-19528}
- usb: iowarrior: fix deadlock on disconnect (Oliver Neukum) [Orabug: 31351064] {CVE-2019-19528}

[2.6.39-400.322.1]
- ipvs: reset ipvs pointer in netns (Julian Anastasov) [Orabug: 31027196]
- ipvs: prefer NETDEV_DOWN event to free cached dsts (Julian Anastasov) [Orabug: 31027196]
- HID: hiddev: do cleanup in failure of opening a device (Hillf Danton) [Orabug: 31206362] {CVE-2019-19527}
- HID: hiddev: avoid opening a disconnected device (Hillf Danton) [Orabug: 31206362] {CVE-2019-19527}
- HID: Fix assumption that devices have inputs (Alan Stern) [Orabug: 31208624] {CVE-2019-19532}