[Bug 1932352] Re: Fix micmute hotkeys on HP Elite Dragonfly

[Launchpad Bug Tracker]

This bug was fixed in the package systemd - 245.4-4ubuntu3.10

---------------
systemd (245.4-4ubuntu3.10) focal-security; urgency=medium

  * SECURITY UPDATE: DoS via DHCP FORCERENEW
    - debian/patches/CVE-2020-13529.patch: tentatively ignore FORCERENEW
      command in src/libsystemd-network/sd-dhcp-client.c.
    - CVE-2020-13529
  * SECURITY UPDATE: denial of service via stack exhaustion
    - debian/patches/CVE-2021-33910.patch: do not use strdupa() on a path
      in src/basic/unit-name.c.
    - CVE-2021-33910

 -- Marc Deslauriers <marc.deslauriers at ubuntu.com>  Tue, 20 Jul 2021
07:39:51 -0400

** Changed in: systemd (Ubuntu Focal)
       Status: Fix Committed => Fix Released

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2020-13529

** CVE added: https://cve.mitre.org/cgi-bin/cvename.cgi?name=2021-33910

** Changed in: systemd (Ubuntu Hirsute)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1932352

Title:
  Fix micmute hotkeys on HP Elite Dragonfly

Status in OEM Priority Project:
  Triaged
Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Focal:
  Fix Released
Status in systemd source package in Groovy:
  Fix Released
Status in systemd source package in Hirsute:
  Fix Released
Status in systemd source package in Impish:
  Fix Released

Bug description:
  [Impact]
  Mic mute key is no function on HP Elite Dragonfly.

  [Fix]
  After confirming with HP, there are two model names for Dragonfly:
  * HP Elite Dragonfly G2 Notebook PC
  * HP Elite Dragonfly Max Notebook PC
  Thus, the commit 
  Commit c1b8c966eccb7be1cae0a30670f5e1fcd88b47fa maps the 81 scan code to mic mute key.

  [Test]
  After patching it, the mic mute key could functioned well on my Dragonfly laptop.

  [Where problems could occur]
  There is not old rule for Dragonfly dmi string in current hwdb.
  Which means the Dragonfly is using default HP key map:
  ```
  evdev:atkbd:dmi:bvn*:bvr*:bd*:svnHP*:pn*:*                                                                
   KEYBOARD_KEY_81=fn_esc
  ```
  This patch will change the HP machine (if product name contains pnHPEliteDragonfly*) to map 81 to mic mute key.
  If a machine (pnHPEliteDragonfly*) works good in the past then this patch may cause it's mic mute key become malfunction.
  However, this rule is confirmed/provided from HP.

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