Red Hat Bugzilla – Full Text Bug Listing
|Summary:||Telnet seg faults when trying to connect to a host that has only an AAAA record|
|Product:||[Fedora] Fedora||Reporter:||Brian Bruns <bruns>|
|Component:||krb5||Assignee:||Nalin Dahyabhai <nalin>|
|Status:||CLOSED RAWHIDE||QA Contact:||Brian Brock <bbrock>|
|Fixed In Version:||Doc Type:||Bug Fix|
|Doc Text:||Story Points:||---|
|Last Closed:||2004-11-01 19:27:22 EST||Type:||---|
|oVirt Team:||---||RHEL 7.3 requirements from Atomic Host:|
|Bug Depends On:|
Description Brian Bruns 2004-08-03 12:46:13 EDT
From Bugzilla Helper: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5) Gecko/20031016 K-Meleon/0.8.2 Description of problem: Telnet seg faults when trying to connect to a hostname that has only an AAAA record, and not a A or CNAME. However, connecting to a hostname that has both A and AAAA records works normally. Version-Release number of selected component (if applicable): telnet-0.17-30 How reproducible: Always Steps to Reproduce: 1. 'telnet' to everest.ipv6.sosdg.org or negation.ipv6.unixnetwork.net (use port 22 or 25) Actual Results: [root@everest ~]# telnet everest.ipv6.sosdg.org 25 Segmentation fault Expected Results: Should have opened a connection and displayed the SMTP banner, or whatever the host on the other end was programmed to send on connect. Additional info: glibc-2.3.3-39, kernel 2.6.7 Example hostnames to use: AAAA only records: everest.ipv6.sosdg.org, negation.ipv6.unixnetwork.net A/AAAA records: mail.sosdg.org
Comment 1 Harald Hoyer 2004-08-16 06:12:36 EDT
please provide the output of: $ which telnet
Comment 2 Brian Bruns 2004-08-16 17:26:39 EDT
[root@everest ~]# which telnet /usr/kerberos/bin/telnet Part of the krb5-workstation-1.3.4-2 package. Definately not the telnet I thought I was using (aka /usr/bin/telnet).
Comment 3 Brian Bruns 2004-08-16 17:29:55 EDT
Oops, hit send too fast. meant to add that /usr/bin/telnet works ok as expected. [root@everest ~]# /usr/bin/telnet everest.ipv6.sosdg.org 22 Trying 2001:618:400:b725::1... Connected to everest.ipv6.sosdg.org. Escape character is '^]'. SSH-1.99-OpenSSH_3.8.1p1
Comment 4 Brian Bruns 2004-08-29 22:10:08 EDT
This bug probably needs to be assigned to both the krb5 and regular telnet version. [root@everest ~]# /usr/bin/telnet negation.ipv6.unixnetwork.net 22 Segmentation fault It does not do it when you telnet to everest.ipv6.sosdg.org, just when you do negation.ipv6.unixnetwork.net. Both records in the nameserver are done in the same way (I did them at the same time). Package version is: telnet-0.17-30 Let me know if any Fedora/RH developers need access to one of the dev boxes for debugging, and I will let you know how to gain access.
Comment 5 Nalin Dahyabhai 2004-11-01 19:27:22 EST
Bundled apps seem to be checking for errors from gethostbyname_r incorrectly. Fixing in 1.3.5-1.