Add changelog note for #1087, remove copyright line as discussed, and
compile fixes for newer local_zones_lookup, unused variable warnings
fixed, and also manual page description of the feature.
- Merge #1087: Overload `local_data_remove` to support removing
specific records.
Overload `local_data_remove` to support removing specific records (#1087)
Here we overload the `local_data_remove` control command to support
deleting specific records. Curently, this command deletes all records
for a given zone. The modification works by attempting to parse the
command argument first as a complete record and then as just a domain
name, if the first attempt failed.
This preserves the command's behavior, while also supporting removing
specific records from the zone tree.
- Merge #1467: daemon: fix DEREF_AFTER_NULL.EX.COND on
worker_init. This fixes error handling if the worker
stat_timer allocation has an out of memory error. That
makes the server not crash later, attempting to use it.
Petr Vaganov [Fri, 26 Jun 2026 11:42:29 +0000 (18:42 +0700)]
daemon: fix DEREF_AFTER_NULL.EX.COND on worker_init (#1467)
Found by the static analyzer Svace (ISP RAS).
After having been compared to a NULL value at worker.c:2216,
pointer 'worker->stat_timer' is passed in call to function
'worker_restart_timer' at worker.c:2319,where it is
dereferenced at worker.c:2029.
Fix that stat_timer creation failure in worker_init does
not continue with a NULL timer that causes a crash later.
Signed-off-by: Petr Vaganov <petrvaganoff@gmail.com>
- Merge #1465 from dag-erling: Add libunbound/remote.h. Add
a shared header containing prototypes for functions that
both ends of a remote control connection need to implement.
- Fix that fast_reload does not terminate the server if
random init for DNS cookies fails. The data is only random
generated if cookies are enabled, and the random data
is necessary. Thanks to Qifan Zhang, Palo Alto Networks,
for the report.
- Fix that fast_reload does not terminate the server
on config read failure after malloc failure. Thanks to
Qifan Zhang, Palo Alto Networks, for the report.
- Fix after malloc failure for stats, then it drains the pipe
so the internal messaging stays correct. Also it does
not exit the server if stats pipe communication fails.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix that fast_reload does not terminate the server
on malloc failure for dnstap, or if gethostname fails.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix to check for malloc failure in rpz response create,
for nodata and nxdomain, so it does not crash later.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix to check the return value of auth_xfer_create
during fast_reload auth-zone add and change processing.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix that malloc failure during edns subnet addrtree
insert is checked, so it does not crash later. Thanks to
Qifan Zhang, Palo Alto Networks, for the report.
- Fix that malloc failure for rpz_strip_nsdname is
checked and handled, so that it does not crash later.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix that on malloc failure during accept of TCP, the
socket is not left to cause a read event loop. It uses
slow-accept to delay accepting new connections, if
that fails it drops the new connections. When the tcp
connection usage is full, it waits for 50msec, to allow
existing queries to be resolved. Thanks to Qifan Zhang,
Palo Alto Networks, for the report.
- Fix that malloc failure for ngtcp2_conn_server_new
cleans up reference that older ngtcp2 versions can leave.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix that malloc failure in doq connection setup, does
not crash in doq connection delete later. Thanks to Qifan
Zhang, Palo Alto Networks, for the report.
- Fix that malloc failure for new_local_rrset for RPZ qname
trigger RR insert does not crash. It does not link a
partial RRset, and logs an error on failure, and cleans
up the dname allocation. Thanks to Qifan Zhang, Palo Alto
Networks, for the report.
- Fix that malloc failure in dns64_inform_super does
not set up a half-built reply for cache store, that could
lead to a crash. Thanks to Qifan Zhang, Palo Alto Networks,
for the report.
- Fix that unbound-control auth_zone_reload stops the
server answering from the zone after a failure to read.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix that malloc failure in auth-zone insert rr does
not create an empty node and does not cause an infinite
loop. Thanks to Qifan Zhang, Palo Alto Networks, for
the report.
- Fix that unbound-checkconf checks if an auth-zone download
can overwrite another file, by filename collision.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix that after fast_reload the disown of the auth zone
transfer task cleans the chunk list. Also fix the
auth_transfer_limit test to use a forwarder for each type
of failure, so the one is not blocked by the other waiting.
- Fix after malloc failure the rrset_insert_rr in
localzone processing, during RPZ qname trigger processing,
the RRset retains its previous data correcly. Thanks to
Qifan Zhang, Palo Alto Networks, for the report.
- Fix that after shared memory cannot be created, from
`shm-enable`, the server does not crash. Thanks to Qifan
Zhang, Palo Alto Networks, for the report.
- Fix that dnscrypt configuration does not crash, due to
inconsistency between secret and public keys. Also
duplicate files are skipped. Thanks to Qifan Zhang, Palo
Alto Networks, for the report.
- Fix that after malloc failure in RPZ load a half built
list does not crash later. The newly created RRset is
linked after creation has succeeded. Thanks to Qifan Zhang,
Palo Alto Networks, for the report.
- Fix that for a zonefile only zone, if that file does not
exist on server start, the server continues to start with
a warning log message. Thanks to Qifan Zhang, Palo Alto
Networks, for the report.
- Fix that a signed wildcard NSEC, is checked before use,
so it does not allow insecure DS proofs inappropriately.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix that auth-zone, and RPZ zones, do not allow out-of-zone
records. These are records that are not under the zone apex.
The out-of-zone records are dropped from the zone contents.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix that a half-written trust anchor file does not crash
the server at runtime. It unlinks a wrong file from the list.
Thanks to Qifan Zhang, Palo Alto Networks, for the report.
- Fix that when SVCB records cannot be written out, and
are written in unknown format, that the zone read allows
such unknown format SVCB records. Thanks to Qifan Zhang,
Palo Alto Networks, for the report.
- Fix to disallow $INCLUDE for secondary zones. Start up
of server continues if a secondary zone fails to load.
Failed loads clear the zone data, so there is no partial
zone. Thanks to Qifan Zhang, Palo Alto Networks, for
the report.
- Fix that dns64 bypasses rpz-passthru rule during
synthesis. This restricted more than necessary. Thanks to
Qifan Zhang, Palo Alto Networks, for the report.
- Fix misconfigured ipsecmod hook causing path name
similarity with other file. The ipsecmod is changed for
exec of the hook. The ipsecmod hook, if a script, has to
start now with a line like `#!/bin/sh`. Thanks to Qifan
Zhang, Palo Alto Networks, for the report.
- Fix DNAME synthesis from cache that keeps use of 0TTL
entries in a sliding window. It did not surpass RRSIG
expiry. Thanks to Qifan Zhang, Palo Alto Networks, for
the report.
- Fix erroneous DNS error report values after bogus AAAA
query caused error information that was not cleared by
a successful A subquery. Thanks to Qifan Zhang, Palo Alto
Networks, for the report.
- Fix for fast_reload that removes an auth zone while its
lookups are in progress, for a primary name. Also after the
change, it no longer picks up the old results. Thanks to
Qifan Zhang, Palo Alto Networks, for the report.
- Fix that fast_reload when a zonemd verification lookup
it in progress with subnet loaded, deregisters the
callback. Thanks to Qifan Zhang, Palo Alto Networks,
for the report.
- Fix perform a full transfer every number of incremental
transfers, to stop increasing memory usage, for auth-zone
and rpz zones. Thanks to Qifan Zhang, Palo Alto Networks,
for the report.
- Fix to add `max-transfer-size` and `max-transfer-time` that
limit auth-zone and rpz transfer amount and time taken.
Default is disabled. This hardens against unbounded
transfers. Thanks to Qifan Zhang, Palo Alto Networks,
for the report.
- Fix for #1306: configure detects specifically the call to
SSL_set_quic_tls_early_data_enabled and
SSL_set_quic_early_data_enabled, so the correct one is used.
- Fix that dns64 cleans up the allocated message if the adjust
routines fail, and checks if there is a reply before cache
store, also unbound checks if A and AAAA are malformed
for auth-zones. Thanks to Qifan Zhang, Palo Alto Networks,
for the report.
- Fix that dump_cache has a larger buffer for records,
and it checks that an owner name does not collide with BADRR
on the input, and changes verbosity on the log of failure in
rrset to string. Thanks to Qifan Zhang, Palo Alto Networks,
for the report.
projects / thirdparty / unbound.git / log
