assert hevent->rdataset is non NULL

(cherry picked from commit d8d04edfba54df9a21ef87d4b0ae63a8e81fae2d)

diff --git a/lib/dns/resolver.c b/lib/dns/resolver.c
index 2a6e69c5a68764a2af9169099a0aa132c24a5ab4..e7567852d69247dee57526e3f86a0dcc5af0c19c 100644 (file)
--- a/lib/dns/resolver.c
+++ b/lib/dns/resolver.c
@@ -5706,6 +5706,7 @@ validated(isc_task_t *task, isc_event_t *event) {
                /*
                 * Negative results must be indicated in event->result.
                 */
+               INSIST(hevent->rdataset != NULL);
                if (dns_rdataset_isassociated(hevent->rdataset) &&
                    NEGATIVE(hevent->rdataset)) {
                        INSIST(eresult == DNS_R_NCACHENXDOMAIN ||