Report information
The Basics
Id:
42832
Status:
resolved
Priority:
Medium/Medium
Queue:
bind9-public
People
BugTracker
Version Fixed:
9.9.12, 9.10.7, 9.11.3, 9.12.0
Version Found:
(no value)
Versions Affected:
(no value)
Versions Planned:
(no value)
Priority:
P2 Normal
Severity:
S2 Normal
CVSS Score:
(no value)
CVE ID:
(no value)
Component:
BIND Utilities
Area:
bug
Dates
Created:Tue, 12 Jul 2016 05:10:46 -0400
Updated:Thu, 05 Oct 2017 04:02:39 -0400
Closed:Thu, 05 Oct 2017 04:02:07 -0400

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History
  Tue, 12 Jul 2016 05:10:46 -0400 Pavel Odintsov <pavel.odintsov@gmail.com> - Ticket created
Subject: Bing git - dig expects segmentation fault if DNS server haven't support for TCP pipelining
Date: Tue, 12 Jul 2016 09:10:43 +0000
To: bind-bugs@isc.org
From: "Pavel Odintsov" <pavel.odintsov@gmail.com>

Bug Report from www.isc.org: Name: Pavel Odintsov Email: pavel.odintsov@gmail.com Software Version: Bing git OS: Debian Jessie Subject:dig expects segmentation fault if DNS server haven't support for TCP pipelining Bug Detail =========== Hello! I've got following error: /opt/bind9_git/bin/dig @art.ns.cloudflare.com +keepopen +tcp -f lookup_domains.txt ; <<>> DiG 9.11.0b1 <<>> stableit.ru ; (2 servers found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 15369 ;; flags: qr aa rd; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 1 ;; WARNING: recursion requested but not available ;; OPT PSEUDOSECTION: ; EDNS: version: 0, flags:; udp: 512 ;; QUESTION SECTION: ;stableit.ru. IN A ;; ANSWER SECTION: stableit.ru. 300 IN A 104.20.30.58 stableit.ru. 300 IN A 104.20.31.58 ;; Query time: 220 msec ;; SERVER: 162.159.8.252#53(162.159.8.252) ;; WHEN: Tue Jul 12 01:58:55 PDT 2016 ;; MSG SIZE rcvd: 72 ;; communications error to 162.159.8.252#53: end of file [[[ Here I pressed CTRL+C ]]] ^Cdighost.c:4351: INSIST(current_lookup == ((void *)0)) failed, back trace #0 0x57d234 in ?? #1 0x57d19a in ?? #2 0x41f7c0 in ?? #3 0x411a45 in ?? #4 0x7f575405bb45 in ?? #5 0x411ac5 in ?? Aborted Please put following lines into lookup_domains.txt: stableit.ru lupus.su I've reproduced this bug with Debian Jessie and with Git's version of Bind 9 (b3d352f01d8f8b6d11c1b7503091375b131397be). As you know CloudFlare haven't support for TCP pipelining and dig could handle this case properly. What do you think about it? Thanks! --- This email was received through isc.org Bug Submission Form All information within this email is considered confidential and for internal use only.
Tue, 12 Jul 2016 10:49:19 -0400 Stephen Morris <stephen@isc.org> - Priority P2 Normal added
Tue, 12 Jul 2016 10:49:20 -0400 Stephen Morris <stephen@isc.org> - Severity S2 Normal added
Tue, 12 Jul 2016 10:49:20 -0400 Stephen Morris <stephen@isc.org> - Area bug added
Tue, 12 Jul 2016 10:49:20 -0400 Stephen Morris <stephen@isc.org> - Component BIND Utilities added
Tue, 30 Aug 2016 01:58:29 -0400 Mark Andrews <marka@isc.org> - Status changed from 'new' to 'open'
Mon, 26 Jun 2017 04:03:05 -0400 Michał Kępień <michal@isc.org> - Reference by #45159: BIND 9.11.1 - dighost.c:4405: INSIST(current_lookup == ((void *)0)) failed added
Thu, 17 Aug 2017 07:58:43 -0400 Michał Kępień <michal@isc.org> - Reference to #43576: added
Wed, 04 Oct 2017 09:57:57 -0400 Michał Kępień <michal@isc.org> - Status changed from 'open' to 'review'
  Wed, 04 Oct 2017 14:38:02 -0400 Evan Hunt <Evan_Hunt@isc.org> - Correspondence added

I don't know whether this fixes the bug reported, since there's no test, but it looks correct on inspection and the tests we have are passing. Okay to merge.
Wed, 04 Oct 2017 14:38:03 -0400 Evan Hunt <Evan_Hunt@isc.org> - Given to Michał Kępień <michal@isc.org>
Wed, 04 Oct 2017 20:37:26 -0400 Vicky Risk <vicky@isc.org> - Queue changed from #6 to bind9-public
  Thu, 05 Oct 2017 04:02:06 -0400 Michał Kępień <michal@isc.org> - Correspondence added
Subject: BIND git - dig expects segmentation fault if DNS server haven't support for TCP pipelining

4756. [bug] Interrupting dig could lead to an INSIST failure after certain errors were encountered while querying a host whose name resolved to more than one address. Change 4537 increased the odds of triggering this issue by causing dig to hang indefinitely when certain error paths were evaluated. dig now also retries TCP queries (once) if the server gracefully closes the connection before sending a response. [RT #42832, #45159] 9.9.12, 9.10.7, 9.11.3, 9.12.0
Thu, 05 Oct 2017 04:02:07 -0400 Michał Kępień <michal@isc.org> - Status changed from 'review' to 'resolved'
Thu, 05 Oct 2017 04:02:07 -0400 Michał Kępień <michal@isc.org> - Version Fixed 9.9.12, 9.10.7, 9.11.3, 9.12.0 added
Thu, 05 Oct 2017 04:02:39 -0400 Michał Kępień <michal@isc.org> - Subject changed from 'Bing git - dig expects segmentation fault if DNS server haven't support for TCP pipelining' to 'BIND git - dig expects segmentation fault if DNS server haven't support for TCP pipelining'