Hello Denys, or anyone else affected,

Accepted systemd into hirsute-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/systemd/247.3-3ubuntu3.5 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
hirsute to verification-done-hirsute. If it does not fix the bug for
you, please add a comment stating that, and change the tag to
verification-failed-hirsute. In either case, without details of your
testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

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

** Tags added: verification-needed verification-needed-hirsute

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1934221

Title:
  systemd-resolve segfault

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Focal:
  Confirmed
Status in systemd source package in Hirsute:
  Fix Committed
Status in systemd source package in Impish:
  Fix Released

Bug description:
  [Impact]

   * systemd-resolved stops replying to clients on the local LAN.
   * logging segfault crashes in dmesg:
  [836786.046514] systemd-resolve[872009]: segfault at 39900000000 ip 
0000039900000000 sp 00007ffd7959a6d8 error 14 in 
systemd-resolved[556398695000+9000]
  [836786.046524] Code: Bad RIP value.
  [840887.303994] traps: systemd-resolve[877019] general protection fault 
ip:55ba402e2594 sp:7ffe8cb6bbb0 error:0 in systemd-resolved[55ba402b5000+40000]
  [844395.313421] systemd-resolve[878503]: segfault at 208 ip 00005557a249f5fa 
sp 00007ffe686f5a90 error 6 in systemd-resolved[5557a2472000+40000]
  [844395.313431] Code: 48 85 c0 74 0e 48 8b 8d 00 01 00 00 48 89 88 00 01 00 
00 48 8b 85 00 01 00 00 48 85 c0 0f 84 1d 01 00 00 48 8b 95 f8 00 00 00 <48> 89 
90 f8 00 00 00 48 c7 85 00 01 00 00 00 00 00 00 48 c7 85 f8

   * The upload backports the upstream fix
  (https://github.com/systemd/systemd/pull/18832) to Focal & Hirsute.

  [Test Plan]

   * Setup /etc/systemd/resolved.conf:
  [Resolve]
  DNS=46.182.19.48#dns2.digitalcourage.de 1.1.1.1#cloudflare-dns.com 
9.9.9.9#dns.quad9.net
  DNSSEC=yes
  DNSOverTLS=opportunistic
  MulticastDNS=no
  LLMNR=no
  Cache=yes
  DNSStubListener=yes
  Domains=~.

   * wait for ~24-48 hours and observe if any crash happens

  [Where problems could occur]

   * Any regression would likely cause crashes in systemd-resolved,
  making it unresponsive to DNS network name requests to local
  applications.

  [Other Info]
   
   * Reported upstream: https://github.com/systemd/systemd/issues/18427
   * Fixed upstream in v248: https://github.com/systemd/systemd/pull/18832

  === Original description ===

  
  systemd-resolve keep crashing and it is very annoying as sometimes it 
severely interrupt normal dns resolving.

  Last uploaded report is 2d9e7378-d89b-11eb-9e14-fa163ee63de6
  Typical error in dmesg:
  systemd-resolve[1792202]: segfault at 564ff982f3e0 ip 0000564ff982f3e0 sp 
00007ffe2fd0b758 error 15

  apport hints me that problem is related to mdns

  #3  0x00007f3e903c2f11 in sd_event_dispatch () from
  /lib/systemd/libsystemd-shared-245.so

  It might be (or not) related that some hosts with mdns in my network
  have ipv6 enabled.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: systemd 245.4-4ubuntu3.7
  ProcVersionSignature: Ubuntu 5.4.0-75.84-generic 5.4.119
  Uname: Linux 5.4.0-75-generic x86_64
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  CasperMD5CheckResult: skip
  CurrentDesktop: ubuntu:GNOME
  Date: Thu Jul  1 08:22:51 2021
  InstallationDate: Installed on 2018-12-05 (938 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Release amd64 
(20181017.3)
  MachineType: System manufacturer System Product Name
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-75-generic 
root=UUID=54b80d5c-3d61-4919-873f-0d308083e3b9 ro quiet splash vt.handoff=7
  SourcePackage: systemd
  UpgradeStatus: Upgraded to focal on 2020-05-22 (405 days ago)
  dmi.bios.date: 05/12/2020
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: 1205
  dmi.board.asset.tag: Default string
  dmi.board.name: ROG STRIX X399-E GAMING
  dmi.board.vendor: ASUSTeK COMPUTER INC.
  dmi.board.version: Rev 1.xx
  dmi.chassis.asset.tag: Default string
  dmi.chassis.type: 3
  dmi.chassis.vendor: Default string
  dmi.chassis.version: Default string
  dmi.modalias: 
dmi:bvnAmericanMegatrendsInc.:bvr1205:bd05/12/2020:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnROGSTRIXX399-EGAMING:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring:
  dmi.product.family: To be filled by O.E.M.
  dmi.product.name: System Product Name
  dmi.product.sku: SKU
  dmi.product.version: System Version
  dmi.sys.vendor: System manufacturer

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