[Kernel-packages] [Bug 1915688] [NEW] Please enable CONFIG_FANOTIFY_ACCESS_PERMISSIONS

[Rene H. Larsen]

Public bug reported:

The CONFIG_FANOTIFY_ACCESS_PERMISSIONS option is required for certain
security products, like Microsoft Defender for Endpoints, to operate
correctly. As far as I can tell, it causes no overhead (when not
actively using it), in terms of code size or startup time.

It is currently disabled in the Focal Fossa -kvm kernel:

$ grep CONFIG_FANOTIFY /boot/config-5.4.0-1032-kvm 
CONFIG_FANOTIFY=y
# CONFIG_FANOTIFY_ACCESS_PERMISSIONS is not set

While it is enabled in the -generic kernel:

$ grep CONFIG_FANOTIFY /boot/config-5.4.0-65-generic 
CONFIG_FANOTIFY=y
CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y

The same goes for Bionic Beaver.

** Affects: linux-kvm (Ubuntu)
 Importance: Undecided
 Status: New

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https://bugs.launchpad.net/bugs/1915688

Title:
  Please enable CONFIG_FANOTIFY_ACCESS_PERMISSIONS

Status in linux-kvm package in Ubuntu:
  New

Bug description:
  The CONFIG_FANOTIFY_ACCESS_PERMISSIONS option is required for certain
  security products, like Microsoft Defender for Endpoints, to operate
  correctly. As far as I can tell, it causes no overhead (when not
  actively using it), in terms of code size or startup time.

  It is currently disabled in the Focal Fossa -kvm kernel:

  $ grep CONFIG_FANOTIFY /boot/config-5.4.0-1032-kvm 
  CONFIG_FANOTIFY=y
  # CONFIG_FANOTIFY_ACCESS_PERMISSIONS is not set

  While it is enabled in the -generic kernel:

  $ grep CONFIG_FANOTIFY /boot/config-5.4.0-65-generic 
  CONFIG_FANOTIFY=y
  CONFIG_FANOTIFY_ACCESS_PERMISSIONS=y

  The same goes for Bionic Beaver.

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[Kernel-packages] [Bug 1327741] Re: Kernel panic on driver rtl8821ae

[Rene H. Larsen]

One of the recent kernel releases (not sure which) fixed rtl8821ae
support for me.

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https://bugs.launchpad.net/bugs/1327741

Title:
  Kernel panic on driver rtl8821ae

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  Since kernel version 3.13.0-27, my Asus VM40B goes into kernel panic
  during boot, seemingly due to an error with the WiFi driver,
  rtl8821ae. The attached screenshot of the screen (I have no idea how
  to otherwise capture the output of a kernel panic) shows the error
  with kernel version 3.13.0-29, but it happens exactly the same with
  -27.

  WORKAROUND: Disabling the WiFi card or using version 3.13.0-24 does
  not cause any problem.

  Please bear in mind, while reading the generated report, that I have
  disabled the WiFi card to be able to boot with kernel -29.

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