#77 bind-dyndb-ldap crashes during zone unload when NS is not resolvable
Closed: Fixed None Opened 11 years ago by pspacek.

https://bugzilla.redhat.com/show_bug.cgi?id=827401 (Fedora)

Description of problem:
bind-dyndb-ldap crashes during freeipa unit tests (psearch enabled). The root
cause is probably an unresolvable NS record zone root record.

Backtrace:
(gdb) bt
#0  0x00007ffff50a0965 in __GI_raise (sig=sig@entry=6) at
../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1  0x00007ffff50a2118 in __GI_abort () at abort.c:91
#2  0x000055555558527b in assertion_failed (file=<optimized out>,
line=<optimized out>,
    type=<optimized out>, cond=<optimized out>) at ./main.c:219
#3  0x00007ffff62bec3a in isc_assertion_failed (file=file@entry=0x7ffff799c47b
"zone.c",
    line=<optimized out>, type=type@entry=isc_assertiontype_require,
    cond=cond@entry=0x7ffff799c677 "zone->db != ((void *)0)") at
assertions.c:57
#4  0x00007ffff79453d7 in zone_detachdb (zone=<optimized out>) at zone.c:12935
#5  zone_detachdb (zone=0x7fffec5bbff0) at zone.c:12934
#6  0x00007ffff7945445 in zone_unload (zone=zone@entry=0x7fffec5bbff0) at
zone.c:9105
#7  0x00007ffff7949664 in dns_zone_unload (zone=0x7fffec5bbff0) at zone.c:9045
#8  0x00007ffff249ca8e in ldap_delete_zone2 (inst=inst@entry=0x7ffff7fc9f10,
    name=name@entry=0x7ffff3ff2d10, lock=lock@entry=isc_boolean_true) at
ldap_helper.c:787
#9  0x00007ffff249e414 in ldap_delete_zone (dn=<optimized out>,
inst=0x7ffff7fc9f10,
    lock=<optimized out>) at ldap_helper.c:812
#10 update_action (task=<optimized out>, event=0x7ffff26f6a60) at
ldap_helper.c:2749
#11 0x00007ffff62de13e in dispatch (manager=0x7ffff7fa8010) at task.c:1109
#12 run (uap=0x7ffff7fa8010) at task.c:1279
#13 0x00007ffff5c93d14 in start_thread (arg=0x7ffff3ff3700) at
pthread_create.c:309
#14 0x00007ffff515c99d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:115

Zone LDIF is attached.

Version-Release number of selected component (if applicable):
bind-dyndb-ldap-1.1.0-0.10.b2.fc17.x86_64

How reproducible:


Steps to Reproduce:
1. Use attached LDIF to create a zone
2. Run named
3.

Actual results:
bind-dyndb-ldap crashes with zone with this LDIF

Expected results:
bind-dyndb-ldap does not crash

Additional info:

minimal zone which causes the crash
smaller-zone.ldif

To reproduce the bug it is necessary to load attached smaller-zone.ldif, let BIND to load the zone and then delete zone from LDAP. During invalid zone unload BIND crashes. It crashes BIND with and also without persistent search.

Metadata Update from @atkac:
- Issue assigned to pspacek
- Issue set to the milestone: 3.0 IPA

7 years ago

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