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4833. [bug] isc_event_free should check that the event is not

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linked when called. [RT #46725]

4832.   [bug]           Events were not being removed from zone->rss_events.
                        [RT #46725]
This commit is contained in:
Mark Andrews
2017-11-30 10:31:44 +11:00
parent 6cc3c22534
commit 9ddf7d6c4c
5 changed files with 17 additions and 1 deletions
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7
lib/dns/rpz.c
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@@ -1555,6 +1555,8 @@ dns_rpz_new_zone(dns_rpz_zones_t *rpzs, dns_rpz_zone_t **rpzp) {
zone->updbit = NULL;
zone->rpzs = rpzs;
zone->db_registered = ISC_FALSE;
ISC_EVENT_INIT(&zone->updateevent, sizeof(zone->updateevent),
0, NULL, 0, NULL, NULL, NULL, NULL, NULL);
zone->num = rpzs->p.num_zones++;
rpzs->zones[zone->num] = zone;
@@ -1633,6 +1635,7 @@ dns_rpz_dbupdate_callback(dns_db_t *db, void *fn_arg) {
isc_event_t *event;
dns_db_currentversion(zone->db, &zone->dbversion);
INSIST(!ISC_LINK_LINKED(&zone->updateevent, ev_link));
ISC_EVENT_INIT(&zone->updateevent,
sizeof(zone->updateevent), 0, NULL,
DNS_EVENT_RPZUPDATED,
@@ -1669,6 +1672,7 @@ dns_rpz_update_taskaction(isc_task_t *task, isc_event_t *event) {
UNUSED(task);
zone = (dns_rpz_zone_t *) event->ev_arg;
isc_event_free(&event);
LOCK(&zone->rpzs->maint_lock);
zone->updatepending = ISC_FALSE;
zone->updaterunning = ISC_TRUE;
@@ -1679,7 +1683,6 @@ dns_rpz_update_taskaction(isc_task_t *task, isc_event_t *event) {
result = isc_time_now(&zone->lastupdated);
RUNTIME_CHECK(result == ISC_R_SUCCESS);
UNLOCK(&zone->rpzs->maint_lock);
isc_event_free(&event);
}
static isc_result_t
@@ -1943,6 +1946,7 @@ update_quantum(isc_task_t *task, isc_event_t *event) {
/*
* We finished a quantum; trigger the next one and return
*/
INSIST(!ISC_LINK_LINKED(&rpz->updateevent, ev_link));
ISC_EVENT_INIT(&rpz->updateevent,
sizeof(rpz->updateevent), 0, NULL,
DNS_EVENT_RPZUPDATED,
@@ -1995,6 +1999,7 @@ dns_rpz_update_from_db(dns_rpz_zone_t *rpz) {
}
event = &rpz->updateevent;
INSIST(!ISC_LINK_LINKED(&rpz->updateevent, ev_link));
ISC_EVENT_INIT(&rpz->updateevent, sizeof(rpz->updateevent),
0, NULL, DNS_EVENT_RPZUPDATED,
update_quantum, rpz, rpz, NULL, NULL);