Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.
RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

Bug 1034824

Summary: Assertion failure in nsupdate on certain input
Product: Red Hat Enterprise Linux 7 Reporter: Nikolai Kondrashov <nikolai.kondrashov>
Component: bindAssignee: Tomáš Hozza <thozza>
Status: CLOSED CURRENTRELEASE QA Contact: Juraj Marko <jmarko>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 7.0CC: jscotka, nlevinki, ovasik
Target Milestone: rcKeywords: Patch
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: bind-9.9.4-6.el7 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2014-06-13 13:14:55 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
core.20545.gz
none
Fix for memory leak none

Description Nikolai Kondrashov 2013-11-26 14:58:13 UTC
Created attachment 829312 [details]
core.20545.gz

Description of problem:
nsupdate terminates with assertion failure while attempting to update records in GSS-TSIG mode with certain input:

The gdb backtrace of the core is:

#0  0x00007f5d2887c979 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#1  0x00007f5d2887e088 in __GI_abort () at abort.c:90
#2  0x00007f5d2a7fc1cf in isc_assertion_failed (file=file@entry=0x7f5d2a838358 "mem.c", line=line@entry=1102, type=type@entry=isc_assertiontype_insist, cond=cond@entry=0x7f5d2a838447 "ctx->stats[i].gets == 0U") at assertions.c:58
#3  0x00007f5d2a80b361 in destroy (ctx=ctx@entry=0x74f030) at mem.c:1102
#4  0x00007f5d2a80b7cc in isc__mem_destroy (ctxp=ctxp@entry=0x60f0e0 <mctx>) at mem.c:1253
#5  0x0000000000404ef7 in cleanup () at ./nsupdate.c:2961
#6  main (argc=2, argv=0x7fff40cd7378) at ./nsupdate.c:3013

Version-Release number of selected component (if applicable):
bind-utils-9.9.4-5.el7.x86_64

How reproducible:
Always

Steps to Reproduce:
Ensure that a Kerberos ticket appropriate for the update is acquired and execute the following, possibly modifying names and addresses:

nsupdate -g <<<'
realm EXAMPLE.COM
update delete dyndns-refresh.example.com. in A
send
realm EXAMPLE.COM
update delete 17.122.168.192.in-addr.arpa. in PTR
send
'

Actual results:
Output:
mem.c:1102: INSIST(ctx->stats[i].gets == 0U) failed, back trace
#0 0x7f4a5c8e6264 in ??
#1 0x7f4a5c8e61ca in ??
#2 0x7f4a5c8f5361 in ??
#3 0x7f4a5c8f57cc in ??
#4 0x404ef7 in ??
#5 0x7f4a5a952af5 in ??
#6 0x405085 in ??
Aborted (core dumped)

Exit status: 134

Expected results:
No output.
Exit status: 0

Comment 2 Tomáš Hozza 2013-11-27 14:50:09 UTC
Thank you for your report.

The assertion is caused by memory leak caused by multiple
'realm' statements.

Comment 3 Tomáš Hozza 2013-11-27 15:38:42 UTC
Created attachment 829781 [details]
Fix for memory leak

Comment 4 Tomáš Hozza 2013-11-27 15:39:35 UTC
Patch sent to Upstream... [ISC-Bugs #35073]

Comment 5 Tomáš Hozza 2013-11-28 08:08:03 UTC
Upstream accepted the fix.

Comment 9 Ludek Smid 2014-06-13 13:14:55 UTC
This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.