The 2 patches can be found here, they have CC'ed stable, so they will be
in artful kernel someday.

git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-fixes.git

Author: Sara Sharon <sara.sha...@intel.com>
Date:   Mon Feb 8 23:30:47 2016 +0200

    iwlwifi: mvm: mark MIC stripped MPDUs
    
    When RADA is active, the hardware decrypts the packets and strips off
    the MIC as it is useless after decryption. Indicate that to mac80211.
    
    Cc: sta...@vger.kernel.org # 4.13+
    [this is needed for the 9000-series HW to work properly]
    Signed-off-by: Sara Sharon <sara.sha...@intel.com>
    Signed-off-by: Luca Coelho <luciano.coe...@intel.com>

commit 9d0fc5a50a0548f8e5d61243e5e5f26d5c405aef
Author: David Spinadel <david.spina...@intel.com>
Date:   Mon Nov 21 17:01:25 2016 +0200

    iwlwifi: mvm: enable RX offloading with TKIP and WEP
    
    Set the flag that indicates that ICV was stripped on if
    this option was enabled in the HW.
    
    Cc: sta...@vger.kernel.org # 4.13+
    [this is needed for the 9000-series HW to work properly]
    Signed-off-by: David Spinadel <david.spina...@intel.com>
    Signed-off-by: Luca Coelho <luciano.coe...@intel.com>

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https://bugs.launchpad.net/bugs/1736639

Title:
  Intel 9260/9462/9560 can't connect to 5GHz AP

Status in linux package in Ubuntu:
  In Progress

Bug description:
  With 1009 oem(v4.13) kernel and latest linux-firmware[1], it connect to 
2.4GHz APs without any issues.
  But it fails to connect 5GHz APs.

  It stucks when I select a 5GHz network AP, and after timeout it
  connects to another configured 2.4GHz AP.
  [ 512.404139] wlp0s20f3: authenticate with 2c:36:f8:fa:ec:00
  [ 512.410781] wlp0s20f3: send auth to 2c:36:f8:fa:ec:00 (try 1/3)
  [ 512.449561] wlp0s20f3: authenticated
  [ 512.450625] wlp0s20f3: associate with 2c:36:f8:fa:ec:00 (try 1/3)
  [ 512.452010] wlp0s20f3: RX AssocResp from 2c:36:f8:fa:ec:00
  (capab=0x111 status=0 aid=8)
  [ 512.454501] wlp0s20f3: associated
  [ 512.542439] wlp0s20f3: Limiting TX power to 27 (30 - 3) dBm as
  advertised by 2c:36:f8:fa:ec:00
  [ 557.685247] wlp0s20f3: deauthenticating from 2c:36:f8:fa:ec:00 by
  local choice (Reason: 3=DEAUTH_LEAVING)
  [ 557.695875] wlp0s20f3: failed to remove key (1, ff:ff:ff:ff:ff:ff)
  from hardware (-22)

  1. c4276b6 (tag: refs/tags/iwlwifi-fw-2017-11-03) iwlwifi: add
  firmware version 33 for new 9000 series

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