[Bug 1946667] Re: resolved reports Failed to send hostname reply: Invalid argument

[brian]

i see this on Focal

root at giga:~# cat /etc/os-release 
NAME="Ubuntu"
VERSION="20.04.6 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04.6 LTS"
VERSION_ID="20.04"
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal
root at giga:~# systemd --version
systemd 245 (245.4-4ubuntu3.22)
+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN2 -IDN +PCRE2 default-hierarchy=hybrid
root at giga:~# systemctl status systemd-resolved
● systemd-resolved.service - Network Name Resolution
     Loaded: loaded (/lib/systemd/system/systemd-resolved.service; enabled; vendor preset: enabled)
     Active: active (running) since Thu 2023-09-07 09:46:25 CDT; 1 weeks 1 days ago
       Docs: man:systemd-resolved.service(8)
             https://www.freedesktop.org/wiki/Software/systemd/resolved
             https://www.freedesktop.org/wiki/Software/systemd/writing-network-configuration-managers
             https://www.freedesktop.org/wiki/Software/systemd/writing-resolver-clients
   Main PID: 722 (systemd-resolve)
     Status: "Processing requests..."
      Tasks: 1 (limit: 28582)
     Memory: 9.4M
     CGroup: /system.slice/systemd-resolved.service
             └─722 /lib/systemd/systemd-resolved

Sep 14 16:56:42 giga systemd-resolved[722]: Failed to send hostname reply: Invalid argument
Sep 14 16:57:01 giga systemd-resolved[722]: Failed to send hostname reply: Invalid argument
Sep 14 16:57:13 giga systemd-resolved[722]: Failed to send hostname reply: Invalid argument
Sep 14 16:57:31 giga systemd-resolved[722]: Failed to send hostname reply: Invalid argument
Sep 14 16:58:17 giga systemd-resolved[722]: Failed to send hostname reply: Invalid argument
Sep 14 16:58:36 giga systemd-resolved[722]: Failed to send hostname reply: Invalid argument
Sep 14 17:00:29 giga systemd-resolved[722]: Failed to send hostname reply: Invalid argument
Sep 14 17:00:45 giga systemd-resolved[722]: Failed to send hostname reply: Invalid argument
Sep 15 00:00:10 giga systemd-resolved[722]: Using degraded feature set (UDP) for DNS server 2600:1700:27e:e400::1.
Sep 15 13:23:02 giga systemd-resolved[722]: Grace period over, resuming full feature set (UDP+EDNS0) for DNS server 2600:1700:27e:e400::1.
root at giga:~#

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https://bugs.launchpad.net/bugs/1946667

Title:
  resolved reports Failed to send hostname reply: Invalid argument

Status in systemd package in Ubuntu:
  Fix Released

Bug description:
  According to https://github.com/systemd/systemd/issues/11626 this is
  fixed in version 248 of systemd.

  Please make that version available to LTS 20.04.3

  Thanks!

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