[Bug 1415880] Re: 14e4:4365 bcmwl-kernel source: fix for null pointer crash

[Rafael David Tinoco]

## Precise debdiff applies cleanly.

## Trusty is already fixed in -proposed (same fixes)

bcmwl (6.30.223.248+bdcom-0ubuntu0.2) trusty-proposed; urgency=medium

  * debian/dkms.conf.in,
    0016-repair-make-warnings.patch,
    0017-add-support-for-Linux-4.0.patch,
    0018-cfg80211_disconnected.patch,
    0019-broadcom-sta-6.30.223.248-3.18-null-pointer-fix.patch:
    - Add support for kernels up to 4.2 (LP: #1518956). Credit
      for the patches goes to Krzysztof Kolasa and to Tim Gardner.

 -- Alberto Milone <alberto.milone at canonical.com>  Fri, 27 Nov 2015
18:02:04 +0100

## Vivid debdiff applies cleanly.

## Wily is already fix released:

bcmwl (6.30.223.248+bdcom-0ubuntu4.1) wily; urgency=medium

  * Added needed patches for lts kernels (LP: #1415880)
  * Fixed null pointer reference (LP: #1415880)
    d/p/0019-broadcom-sta-6.30.223.248-3.18-null-pointer-fix.patch

 -- Rafael David Tinoco <rafael.tinoco at canonical.com>  Thu, 10 Sep 2015
10:42:38 -0500

## Xenial is already fix released:

bcmwl (6.30.223.248+bdcom-0ubuntu4.1) wily; urgency=medium

  * Added needed patches for lts kernels (LP: #1415880)
  * Fixed null pointer reference (LP: #1415880)
    d/p/0019-broadcom-sta-6.30.223.248-3.18-null-pointer-fix.patch

 -- Rafael David Tinoco <rafael.tinoco at canonical.com>  Thu, 10 Sep 2015
10:42:38 -0500

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https://bugs.launchpad.net/bugs/1415880

Title:
  14e4:4365 bcmwl-kernel source: fix for null pointer crash

Status in Dell Sputnik:
  Confirmed
Status in bcmwl package in Ubuntu:
  Fix Released
Status in bcmwl source package in Precise:
  New
Status in bcmwl source package in Trusty:
  Fix Committed
Status in bcmwl source package in Vivid:
  New
Status in bcmwl source package in Wily:
  Fix Released

Bug description:
  [Impact]

   * bcmwl does not compile on new kernels (or HWE kernels)
   * bcmwl suffers from null reference bug 

  [Test Case]

   * public PPA provided to community and feedback
   * based on patch available to other distros
   * comment #42

  [Regression Potential]

   * for changes on kernel support it may not compile (tested with 3.2, 3.13, 3.18 and 4.2)
   * for the null reference change -> proved to fix problem for community based on feedback

  [Other Info]

  Original bug description:

  The bcmwl package as of now misses one patch for a bug that occurs
  with BCM43142 and possibly other broadcom chipsets that will look like
  random disconnects, poor wifi signal and kernel warnings, See also
  #1379524.

  Adding the patch is a fairly simple process:

  * put the patch file in /usr/src/bcmwl-6.30.223.248+bdcom/patches
  * add the following line to  /usr/src/bcmwl-6.30.223.248+bdcom/dkms.conf
  PATCH[7]="0014-null-pointer-crash.patch"
  * run: /usr/lib/dkms/common.postinst bcmwl 6.30.223.248+bdcom /usr/share/bcmwl x86_64 $(uname -r)

  This has fixed the issue for me. Edit: I just wanted to add that I did
  not write the patch; I merely downloaded it from a paste that was
  linked from the respective AUR package.

  ProblemType: Bug
  DistroRelease: Ubuntu 14.10
  Package: bcmwl-kernel-source 6.30.223.248+bdcom-0ubuntu1 [modified: usr/src/bcmwl-6.30.223.248+bdcom/dkms.conf]
  ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
  Uname: Linux 3.16.0-29-generic x86_64
  NonfreeKernelModules: wl
  ApportVersion: 2.14.7-0ubuntu8.1
  Architecture: amd64
  CurrentDesktop: LXDE
  Date: Thu Jan 29 13:15:17 2015
  InstallationDate: Installed on 2015-01-26 (3 days ago)
  InstallationMedia: Lubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
  SourcePackage: bcmwl
  UpgradeStatus: No upgrade log present (probably fresh install)

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