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[Launchpad Bug Tracker <1850752@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package amd64-microcode -
3.20191021.1ubuntu0.16.04.1

---------------
amd64-microcode (3.20191021.1ubuntu0.16.04.1) xenial; urgency=medium

  * Backport to Ubuntu 16.04 LTS (LP: #1850752)

amd64-microcode (3.20191021.1ubuntu1) focal; urgency=low

  * Merge from Debian unstable (LP: #1850752). Remaining changes:
    - initramfs-tools hook (debian/initramfs.hook):
      + Default to 'early' instead of 'auto' when building with
        MODULES=most
      + Do not override preset defaults from auto-exported conf
        snippets loaded by initramfs-tools.

amd64-microcode (3.20191021.1) unstable; urgency=medium

  * New microcode update packages from AMD upstream:
    + New Microcodes:
      sig 0x00830f10, patch id 0x08301025, 2019-07-11
    + Updated Microcodes:
      sig 0x00800f12, patch id 0x08001250, 2019-04-16
      sig 0x00800f82, patch id 0x0800820d, 2019-04-16
  * README: update for new release

 -- Steve Beattie <sbeattie@xxxxxxxxxx>  Thu, 31 Oct 2019 14:59:01 -0700

** Changed in: amd64-microcode (Ubuntu Xenial)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1850752

Title:
  Update amd64-microcode to 20191022 for 17h family

Status in amd64-microcode package in Ubuntu:
  Fix Released
Status in amd64-microcode source package in Xenial:
  Fix Released
Status in amd64-microcode source package in Bionic:
  Confirmed
Status in amd64-microcode source package in Disco:
  Fix Released
Status in amd64-microcode source package in Eoan:
  Fix Released
Status in amd64-microcode source package in Focal:
  Fix Released

Bug description:
  [Impact]

   * New microcode is available for AMD family 17h processors as of
  2019-10-22.

  [Test Case]

   * There is no testcase for new microcode, as it is unknown what has
  changed.

  [Regression Potential]

   * New microcode is published without a changelog, thus it is unknown what it fixes or regresses,
     yet it is recommeded to upgrade it. The 17h family microcode has been updated

  [Other Info]

   * https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-
  firmware.git/commit/?id=2b016afc348ba4b5fb2016ffcb2822f4a293da0c

  For all proposed packages, the change to not override preset defaults
  from auto-exported conf snippets loaded by initramfs-tools
  (http://launchpadlibrarian.net/435434785/amd64-microcode_3.20181128.1ubuntu1_3.20181128.1ubuntu2.diff.gz)
  is incorporated in addition to the newer microcode. This change had
  already landed in disco and newer, is in the to be superceded package
  in bionic-proposed, and is new to xenial's amd64-microcode package.

  This microcode update *may* address the Ryzen 3000 RDRAND bug, but
  it's not clear without any documentation.

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