[Bug 1881549] Re: BCM43602 [14e4:43ba] Subsystem [1028:0020]: Upgraded to 20.04 and wifi broke

[Brian Murray]

Hello Claire, or anyone else affected,

Accepted wpa into focal-proposed. The package will build now and be
available at https://launchpad.net/ubuntu/+source/wpa/2:2.9-1ubuntu4.1
in a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
focal to verification-done-focal. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-focal. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: wpa (Ubuntu Focal)
       Status: Confirmed => Fix Committed

** Tags added: verification-needed verification-needed-focal

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Title:
  BCM43602 [14e4:43ba] Subsystem [1028:0020]: Upgraded to 20.04 and wifi
  broke

Status in wpa package in Ubuntu:
  Fix Released
Status in wpa source package in Focal:
  Fix Committed
Status in wpa source package in Groovy:
  Fix Released

Bug description:
  [Impact]

   * A driver supports FT (IEEE 802.11r-2008 or fast BSS transition (FT),
     also called fast roaming) if it either supports SME or the
     NL80211_CMD_UPDATE_FT_IES command. When selecting AKM suites,
     wpa_supplicant currently doesn't take into account whether or not either
     of those conditions are met. This can cause association failures, e.g.,
     when an AP supports both WPA-EAP and FT-EAP but the driver doesn't
     support FT (wpa_supplicant will decide to do FT-EAP since it is unaware
     the driver doesn't support it).

   * This is known to affect users at least users with popular chip-sets,
     such as BCM20703A1 or BCM4350 (notably present in the popular XPS 13/15
     laptops).

   * The upload fixes the bug by allowing an FT suite to be selected only
     when the driver also supports FT.

  [Test Case]

   * requires affected hardware and wpa_supplicant built with CONFIG_IEEE80211R
     and connecting to an AP supporting WPA-EAP and FT-EAP

  [Regression Potential]

   * a driver not advertising correctly its support for SME or the
     NL80211_CMD_UPDATE_FT_IES command via the drv_flags would be prevented from
     using FT but would still be able to connect to APs

  [Other Info]

   * Upstream fix: https://w1.fi/cgit/hostap/commit/?id=23dc196fde951b3d508f367a603cddffbd053490
   * Initial report: https://bugs.archlinux.org/task/63397
  -----------------------

  Upgraded to 20.04 and the wifi broke.  It was working fine on 18.04.  Tried a variety of things with apw but nada.  /var/log attached
  ---
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu27.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  ubuntu     1438 F.... pulseaudio
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 20.04
  InstallationDate: Installed on 2019-07-09 (329 days ago)
  InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
  MachineType: Dell Inc. XPS 15 9550
  Package: linux (not installed)
  ProcFB: 0 i915drmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-33-generic root=UUID=f73bcd37-31c3-4314-81cf-102bfd94a03e ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 5.4.0-33.37-generic 5.4.34
  RelatedPackageVersions:
   linux-restricted-modules-5.4.0-33-generic N/A
   linux-backports-modules-5.4.0-33-generic  N/A
   linux-firmware                            1.187
  Tags:  focal
  Uname: Linux 5.4.0-33-generic x86_64
  UpgradeStatus: Upgraded to focal on 2020-05-21 (12 days ago)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
  _MarkForUpload: True
  dmi.bios.date: 12/12/2019
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: 1.13.1
  dmi.board.name: 0N7TVV
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 9
  dmi.chassis.vendor: Dell Inc.
  dmi.modalias: dmi:bvnDellInc.:bvr1.13.1:bd12/12/2019:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA00:cvnDellInc.:ct9:cvr:
  dmi.product.family: XPS
  dmi.product.name: XPS 15 9550
  dmi.product.sku: 06E4
  dmi.sys.vendor: Dell Inc.

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