Hello Steve, or anyone else affected, Accepted dnsmasq into bionic-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/dnsmasq/2.79-1ubuntu0.5 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- bionic to verification-done-bionic. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification- failed-bionic. 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: dnsmasq (Ubuntu Bionic) Status: In Progress => Fix Committed ** Tags added: verification-needed verification-needed-bionic -- 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/1785383 Title: missing EDNS0 record confuses systemd-resolved Status in systemd: Fix Released Status in dnsmasq package in Ubuntu: Fix Released Status in systemd package in Ubuntu: Fix Released Status in dnsmasq source package in Bionic: Fix Committed Status in systemd source package in Bionic: Fix Released Status in dnsmasq source package in Focal: Fix Released Status in systemd source package in Focal: Fix Released Status in dnsmasq source package in Groovy: Fix Released Status in systemd source package in Groovy: Fix Released Status in dnsmasq source package in Hirsute: Fix Released Status in systemd source package in Hirsute: Fix Released Status in dnsmasq source package in Impish: Fix Released Status in systemd source package in Impish: Fix Released Bug description: [Impact] dnsmasq 2.79 and below omits EDNS0 OPT records [1] when returning an empty answer for a domain it is authoritative for. systemd-resolved seems to get confused by this in certain circumstances; when using the stub resolver and requesting an address for which there are no AAAA records, there can sometimes be a five second hang in resolution. [1] https://en.wikipedia.org/wiki/Extension_Mechanisms_for_DNS [Test Plan] Test case for bionic: ----------------------------------------- IFACE=dummy0 SUBNET=10.0.0 ip link add $IFACE type dummy ifconfig $IFACE ${SUBNET}.1/24 dnsmasq -h -R -d -C /dev/null -2 $IFACE -z -i $IFACE -I lo --host-record=test.test,${SUBNET}.1 --server=/test/ & dig -t a test.test @10.0.0.1 | grep EDNS # returns "; EDNS ..." dig -t aaaa test.test @10.0.0.1 | grep EDNS # again, should return "; EDNS ..." but doesn't. # does so with the -proposed package. ----------------------------------------- [Where problems could occur] Problems may occur in case a client queries dnsmasq and relies on EDNS0 not being available for behaving correctly. This covers cases where the software querying dnsmasq is buggy or misconfigured. [Development Fix] Fixed upstream in dnsmasq >= 2.80. [Stable Fix] Partial cherry-pick of upstream commit http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=1682d15a744880b0398af75eadf68fe66128af78 The cherry-pick is partial because half if it is already in the package .diff we have in Bionic. To manage notifications about this bug go to: https://bugs.launchpad.net/systemd/+bug/1785383/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
