9.17.21 RUNTIME_CHECK(csock->tls.tls != ((void *)0)) failed

[Ondřej Surý]

> On 31. 1. 2022, at 16:30, sthaug at nethelp.no wrote:
> 
>> Followup: Unfortunately, this didn't solve the whole problem. While
>> doing the above testing I was running named as root, in order to
>> generate a core dump. When I'm now testing with named running as
>> user bind (and then dropping privileges after startup), it seems to
>> be unable to rebind to port 853 after an "rndc reconfigure". This
>> is probably expected since 853 is a "privileged" port.
>> 
>> The error messages I'm getting after an "rndc reconfig" are:
>> 
>> Jan 24 12:41:25 dns named[6281]: listening on IPv4 interface lo0, 127.0.0.1#853
>> Jan 24 12:41:25 dns named[6281]: creating TLS socket: permission denied
>> Jan 24 12:41:25 dns named[6281]: creating IPv4 interface lo0 failed; interface ignored
>> Jan 24 12:41:25 dns named[6281]: no longer listening on 193.75.110.2#853
>> Jan 24 12:41:25 dns named[6281]: listening on IPv4 interface ixl1.15, 193.75.110.2#853
>> Jan 24 12:41:25 dns named[6281]: creating TLS socket: permission denied
>> Jan 24 12:41:25 dns named[6281]: creating IPv4 interface ixl1.15 failed; interface ignored
>> 
>> and the named process no longer listens on TCP port 853.
>> 
>> Also tried this on 9.17.22, and the same problem occurs.
> 
> Now also tried on 9.18.0, and the same problem occurs.

Please open an issue at https://gitlab.isc.org/isc-projects/bind9/-/issues for this, so the
issue is properly tracked.

Thanks,
--
Ondřej Surý (He/Him)
ondrej at isc.org

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