Xenial update: 4.4.219 upstream stable release

[Kleber Sacilotto de Souza]

SRU Justification

    Impact:
       The upstream process for stable tree updates is quite similar
       in scope to the Ubuntu SRU process, e.g., each patch has to
       demonstrably fix a bug, and each patch is vetted by upstream
       by originating either directly from a mainline/stable Linux tree or
       a minimally backported form of that patch. The following upstream
       stable patches should be included in the Ubuntu kernel:

       4.4.219 upstream stable release
       from git://git.kernel.org/

The following patches from the 4.4.219 stable release shall be applied:
* drm/bochs: downgrade pci_request_region failure from error to warning
* ipv4: fix a RCU-list lock in fib_triestat_seq_show
* net, ip_tunnel: fix interface lookup with no key
* sctp: fix possibly using a bad saddr with a given dst
* l2tp: Correctly return -EBADF from pppol2tp_getname.
* net: l2tp: Make l2tp_ip6 namespace aware
* l2tp: fix race in l2tp_recv_common()
* l2tp: ensure session can't get removed during pppol2tp_session_ioctl()
* l2tp: fix duplicate session creation
* l2tp: Refactor the codes with existing macros instead of literal number
* l2tp: ensure sessions are freed after their PPPOL2TP socket
* l2tp: fix race between l2tp_session_delete() and l2tp_tunnel_closeall()
* usb: gadget: uac2: Drop unused device qualifier descriptor
* usb: gadget: printer: Drop unused device qualifier descriptor
* padata: always acquire cpu_hotplug_lock before pinst->lock
* mm: mempolicy: require at least one nodeid for MPOL_PREFERRED
* net: stmmac: dwmac1000: fix out-of-bounds mac address reg setting
* slcan: Don't transmit uninitialized stack data in padding
* random: always use batched entropy for get_random_u{32,64}
* tools/accounting/getdelays.c: fix netlink attribute length
* power: supply: axp288_charger: Fix unchecked return value
* xen-netfront: Fix mismatched rtnl_unlock
* xen-netfront: Update features after registering netdev
* ASoC: jz4740-i2s: Fix divider written at incorrect offset in register
* IB/hfi1: Call kobject_put() when kobject_init_and_add() fails
* Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl
* RDMA/cm: Update num_paths in cma_resolve_iboe_route error flow
* clk: qcom: rcg: Return failure for RCG update
* drm_dp_mst_topology: fix broken drm_dp_sideband_parse_remote_dpcd_read()
* Linux 4.4.219

[Kleber Sacilotto de Souza (kleber-souza)]

Please note that the following patches have been skipped as they were already applied to xenial/linux:
* slcan: Don't transmit uninitialized stack data in padding
* xen-netfront: Fix mismatched rtnl_unlock
* xen-netfront: Update features after registering netdev

The following patch needed some context adjustment:
* l2tp: fix duplicate session creation

All the other patches applied cleanly.

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.4.0-179.209

---------------
linux (4.4.0-179.209) xenial; urgency=medium

  * xenial/linux: 4.4.0-179.209 -proposed tracker (LP: #1874804)

  * Add debian/rules targets to compile/run kernel selftests (LP: #1874286)
    - [Packaging] add support to compile/run selftests

  * getitimer returns it_value=0 erroneously (LP: #1349028)
    - [Config] CONTEXT_TRACKING_FORCE policy should be unset

  * CVE-2020-11608
    - media: ov519: add missing endpoint sanity checks

  * CVE-2019-19060
    - iio: imu: adis16400: release allocated memory on failure

  * Xenial update: 4.4.219 upstream stable release (LP: #1874045)
    - drm/bochs: downgrade pci_request_region failure from error to warning
    - ipv4: fix a RCU-list lock in fib_triestat_seq_show
    - net, ip_tunnel: fix interface lookup with no key
    - sctp: fix possibly using a bad saddr with a given dst
    - l2tp: Correctly return -EBADF from pppol2tp_getname.
    - net: l2tp: Make l2tp_ip6 namespace aware
    - l2tp: fix race in l2tp_recv_common()
    - l2tp: ensure session can't get removed during pppol2tp_session_ioctl()
    - l2tp: fix duplicate session creation
    - l2tp: Refactor the codes with existing macros instead of literal number
    - l2tp: ensure sessions are freed after their PPPOL2TP socket
    - l2tp: fix race between l2tp_session_delete() and l2tp_tunnel_closeall()
    - usb: gadget: uac2: Drop unused device qualifier descriptor
    - usb: gadget: printer: Drop unused device qualifier descriptor
    - padata: always acquire cpu_hotplug_lock before pinst->lock
    - mm: mempolicy: require at least one nodeid for MPOL_PREFERRED
    - net: stmmac: dwmac1000: fix out-of-bounds mac address reg setting
    - random: always use batched entropy for get_random_u{32,64}
    - tools/accounting/getdelays.c: fix netlink attribute length
    - power: supply: axp288_charger: Fix unchecked return value
    - ASoC: jz4740-i2s: Fix divider written at incorrect offset in register
    - IB/hfi1: Call kobject_put() when kobject_init_and_add() fails
    - Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl
    - RDMA/cm: Update num_paths in cma_resolve_iboe_route error flow
    - clk: qcom: rcg: Return failure for RCG update
    - drm_dp_mst_topology: fix broken drm_dp_sideband_parse_remote_dpcd_read()
    - Linux 4.4.219

  * Xenial update: 4.4.218 upstream stable release (LP: #1873852)
    - spi: qup: call spi_qup_pm_resume_runtime before suspending
    - powerpc: Include .BTF section
    - ARM: dts: dra7: Add "dma-ranges" property to PCIe RC DT nodes
    - spi/zynqmp: remove entry that causes a cs glitch
    - drm/exynos: dsi: propagate error value and silence meaningless warning
    - drm/exynos: dsi: fix workaround for the legacy clock name
    - altera-stapl: altera_get_note: prevent write beyond end of 'key'
    - USB: Disable LPM on WD19's Realtek Hub
    - usb: quirks: add NO_LPM quirk for RTL8153 based ethernet adapters
    - USB: serial: option: add ME910G1 ECM composition 0x110b
    - usb: host: xhci-plat: add a shutdown
    - USB: serial: pl2303: add device-id for HP LD381
    - ALSA: line6: Fix endless MIDI read loop
    - ALSA: seq: ...