[Bug 1782362] Re: dnsmasq segfaults on cnames referring to themselves
Xenial and trusty have reached end of standard support ** Changed in: dnsmasq (Ubuntu Trusty) Status: New => Won't Fix ** Changed in: dnsmasq (Ubuntu Xenial) Status: New => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782362 Title: dnsmasq segfaults on cnames referring to themselves To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1782362/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782362] Re: dnsmasq segfaults on cnames referring to themselves
FYI the code does not apply as-is to the older versions. The changelog/header entries can easily be matched, but the options.c code essentially needs a rewrite to match the older versions - the ttl handling was different and also the code was in other places. At least it would be one backport as 2.68 and 2.75 seem to have more or less the same code for this section. But I wonder how much risk we should go potentially making a bad backport or if we should consider this being a bad configuration. At those more experienced, while a crash is always bad - is this "just" a case happing in a bad config? It seems to violate this from the man page "--cname=,[,][,] [...] The cname must be unique," but isn't all to clear there and obviously a fault isn't the best response even to a misconfig. Or can there be external influences that make it affect you - like people redefining their DNS to cause you to have a loop - not sure how real that would be? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782362 Title: dnsmasq segfaults on cnames referring to themselves To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1782362/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782362] Re: dnsmasq segfaults on cnames referring to themselves
Steps to reproduce are as easy as: $ dnsmasq --cname localhost,localhost bad = segfault good = exit with "dnsmasq: CNAME loop involving localhost" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782362 Title: dnsmasq segfaults on cnames referring to themselves To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1782362/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782362] Re: dnsmasq segfaults on cnames referring to themselves
With 2.77 and later being good marking bug tasks for affected releases accordingly. @Simon - that should be http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=903df07bcb53f175851a7c2891d60fcf64a1f6bc right? @Frank - for the SRU processing [1] later on if th patches are somewhat applicable to 2.75 / 2.68 in the affected releases it might be helpful having a set of minimal steps to set up the CNAME-loop. [1]: https://wiki.ubuntu.com/StableReleaseUpdates -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782362 Title: dnsmasq segfaults on cnames referring to themselves To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1782362/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1782362] Re: dnsmasq segfaults on cnames referring to themselves
** Also affects: dnsmasq (Ubuntu Xenial) Importance: Undecided Status: New ** Also affects: dnsmasq (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: dnsmasq (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1782362 Title: dnsmasq segfaults on cnames referring to themselves To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dnsmasq/+bug/1782362/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
