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fix: usr: Fix a crash when reconfiguring while an NTA is being rechecked

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When named was reconfigured or shut down while a negative trust anchor
was being rechecked against authoritative servers, the in-flight recheck
could outlive the view that owned it and cause `named` to crash.  This
has been fixed.

Closes #5938

Merge branch '5938-ref-ntatable' into 'main'

See merge request isc-projects/bind9!11948
This commit is contained in:
Ondřej Surý 2026-05-05 22:27:46 +02:00
commit 386177ec67
1 changed files with 2 additions and 1 deletions
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3
lib/dns/nta.c
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@ -89,6 +89,7 @@ dns__nta_destroy(dns__nta_t *nta) {
REQUIRE(nta->timer == NULL);
nta->magic = 0;
dns_ntatable_detach(&nta->ntatable);
dns_rdataset_cleanup(&nta->rdataset);
dns_rdataset_cleanup(&nta->sigrdataset);
if (nta->fetch != NULL) {
@ -265,7 +266,7 @@ nta_create(dns_ntatable_t *ntatable, const dns_name_t *name,
nta = isc_mem_get(ntatable->mctx, sizeof(dns__nta_t));
*nta = (dns__nta_t){
.ntatable = ntatable,
.ntatable = dns_ntatable_ref(ntatable),
.name = DNS_NAME_INITEMPTY,
.magic = NTA_MAGIC,
};