Bionic update to v4.15.3 stable release

[Seth Forshee]

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 v4.15.3 upstream stable
       patch set is now available. It should be included in the Ubuntu
       kernel as well.

       git://git.kernel.org/

    TEST CASE: TBD

       The following patches from the v4.15.3 stable release shall be applied:

ip6mr: fix stale iterator
net: igmp: add a missing rcu locking section
qlcnic: fix deadlock bug
qmi_wwan: Add support for Quectel EP06
r8169: fix RTL8168EP take too long to complete driver initialization.
tcp: release sk_frag.page in tcp_disconnect
vhost_net: stop device during reset owner
ipv6: addrconf: break critical section in addrconf_verify_rtnl()
ipv6: change route cache aging logic
Revert "defer call to mem_cgroup_sk_alloc()"
net: ipv6: send unsolicited NA after DAD
rocker: fix possible null pointer dereference in rocker_router_fib_event_work
tcp_bbr: fix pacing_gain to always be unity when using lt_bw
cls_u32: add missing RCU annotation.
ipv6: Fix SO_REUSEPORT UDP socket with implicit sk_ipv6only
soreuseport: fix mem leak in reuseport_add_sock()
net_sched: get rid of rcu_barrier() in tcf_block_put_ext()
net: sched: fix use-after-free in tcf_block_put_ext
media: mtk-vcodec: add missing MODULE_LICENSE/DESCRIPTION
media: soc_camera: soc_scale_crop: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
media: tegra-cec: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
gpio: uniphier: fix mismatch between license text and MODULE_LICENSE
crypto: tcrypt - fix S/G table for test_aead_speed()
Linux 4.15.3

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 4.15.0-10.11

---------------
linux (4.15.0-10.11) bionic; urgency=medium

  * linux: 4.15.0-10.11 -proposed tracker (LP: #1749250)

  * "swiotlb: coherent allocation failed" dmesg spam with linux 4.15.0-9.10
    (LP: #1749202)
    - swiotlb: suppress warning when __GFP_NOWARN is set
    - drm/ttm: specify DMA_ATTR_NO_WARN for huge page pools

  * linux-tools: perf incorrectly linking libbfd (LP: #1748922)
    - SAUCE: tools -- add ability to disable libbfd
    - [Packaging] correct disablement of libbfd

  * [Artful] Realtek ALC225: 2 secs noise when a headset plugged in
    (LP: #1744058)
    - ALSA: hda/realtek - update ALC225 depop optimize

  * [Artful] Support headset mode for DELL WYSE (LP: #1723913)
    - SAUCE: ALSA: hda/realtek - Add support headset mode for DELL WYSE

  * headset mic can't be detected on two Dell machines (LP: #1748807)
    - ALSA: hda/realtek - Support headset mode for ALC215/ALC285/ALC289
    - ALSA: hda - Fix headset mic detection problem for two Dell machines

  * Bionic update to v4.15.3 stable release (LP: #1749191)
    - ip6mr: fix stale iterator
    - net: igmp: add a missing rcu locking section
    - qlcnic: fix deadlock bug
    - qmi_wwan: Add support for Quectel EP06
    - r8169: fix RTL8168EP take too long to complete driver initialization.
    - tcp: release sk_frag.page in tcp_disconnect
    - vhost_net: stop device during reset owner
    - ipv6: addrconf: break critical section in addrconf_verify_rtnl()
    - ipv6: change route cache aging logic
    - Revert "defer call to mem_cgroup_sk_alloc()"
    - net: ipv6: send unsolicited NA after DAD
    - rocker: fix possible null pointer dereference in
      rocker_router_fib_event_work
    - tcp_bbr: fix pacing_gain to always be unity when using lt_bw
    - cls_u32: add missing RCU annotation.
    - ipv6: Fix SO_REUSEPORT UDP socket with implicit sk_ipv6only
    - soreuseport: fix mem leak in reuseport_add_sock()
    - net_sched: get rid of rcu_barrier() in tcf_block_put_ext()
    - net: sched: fix use-after-free in tcf_block_put_ext
    - media: mtk-vcodec: add missing MODULE_LICENSE/DESCRIPTION
    - media: soc_camera: soc_scale_crop: add missing
      MODULE_DESCRIPTION/AUTHOR/LICENSE
    - media: tegra-cec: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE
    - gpio: uniphier: fix mismatch between license text and MODULE_LICENSE
    - crypto: tcrypt - fix S/G table for test_aead_speed()
    - Linux 4.15.3

  * bnx2x_attn_int_deasserted3:4323 MC assert! (LP: #1715519) //
    CVE-2018-1000026
    - net: create skb_gso_validate_mac_len()
    - bnx2x: disable GSO where gso_size is too big for hardware

  * ethtool -p fails to light NIC LED on HiSilicon D05 systems (LP: #1748567)
    - net: hns: add ACPI mode support for ethtool -p

  * CVE-2017-5715 (Spectre v2 Intel)
    - [Packaging] retpoline files must be sorted
    - [Packaging] pull in retpoline files

  * [Feature] PXE boot with Intel Omni-Path (LP: #1712031)
    - d-i: Add hfi1 to nic-modules

  * CVE-2017-5715 (Spectre v2 retpoline)
    - [Packaging] retpoline -- add call site validation
    - [Config] disable retpoline checks for first upload

  * Do not dup...