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[Bug 1760796] Re: kernel 4.15 breaks xl2tpd

 

Note: uploaded the patch for Xenial in the off-chance I get delayed

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https://bugs.launchpad.net/bugs/1760796

Title:
  kernel 4.15 breaks xl2tpd

Status in xl2tpd package in Ubuntu:
  Fix Released
Status in xl2tpd source package in Xenial:
  Confirmed
Status in xl2tpd source package in Artful:
  Won't Fix
Status in xl2tpd source package in Bionic:
  Confirmed
Status in xl2tpd package in Debian:
  Fix Released
Status in xl2tpd package in Fedora:
  Fix Released

Bug description:
  [Impact]

  Kernel 4.15 breaks xl2tpd, please see following upstream issue for more details :
     https://github.com/xelerance/xl2tpd/issues/147

  The following commit/patch fixes the issue:
    https://github.com/xelerance/xl2tpd/commit/9c2cd4933478a83075df5b10f24af7589e90abc3.patch

  As Ubuntu 18.04 (Bionic Beaver) is no longer accepting Debian
  packages, I'm guessing then that the patch would need to be added and
  applied to the existing xl2tpd-1.3.10-1 package.

  The linux-image kernel package on Ubuntu 18.04 is currently linux-
  image-4.15.0-13

  
  [Test Case]

  * apt install network-manager-l2tp-gnome
  * Add new VPN connection via network manager
  * establish vpn connection

  
  [Regression Potential]

  * For Bionic, there is none. The xl2tpd daemon does not work without the patch on the standard bionic kernel.
  * For Xenial w/ the 4.15 HWE kernel there is no risk. 
  * For Xenial w/ the stock 4.4 kernel there is minimal risk as the code is pulling values that are not valid on the 4.4 kernel by defafult.

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