resolver crashes on 10-0-0-38.abcdefghijklmnopqrstuvwxyz012345.plex.direct DS query

Summary

Processing query 10-0-0-38.abcdefghijklmnopqrstuvwxyz012345.plex.direct DS causes the resolver to crash.

BIND version affected

• Affects v9.19: 88c56e25

It seems it does NOT affect stable branches.

Steps to reproduce

1. named -g -c /dev/null
2. dig @127.0.0.1 10-0-0-38.abcdefghijklmnopqrstuvwxyz012345.plex.direct DS
3. 💥

What is the current bug behavior?

28-Feb-2024 14:35:04.363 chase DS servers resolving '10-0-0-38.abcdefghijklmnopqrstuvwxyz012345.plex.direct/DS/IN': 18.202.136.15#53
28-Feb-2024 14:35:04.466 resolver.c:10427: REQUIRE(!dns_rdataset_isassociated(rdataset)) failed

What is the expected correct behavior?

No crash.

Relevant logs

• Debug -d 99 log