unbound dies: buffer overflow

[Wouter Wijngaards]

Hi Sean,

You should upgrade to the latest version, and for that the latest from
the code repository.  That has bug fixes in the auth zone update code
that should resolve the issue, I think, that you have.

Best regards, Wouter

On 04/06/2019 20:48, sean darcy via Unbound-users wrote:
> Fedora 29, unbound-1.8.3-2.fc29.x86_64.
>
> unbound dies with buffer overflow. Any setting I can change ?
>
> May 25 10:30:21 lenovo-gateway.riverside systemd[1]: Starting Unbound
> recursive Domain Name Server...
> May 25 10:30:22 lenovo-gateway.riverside unbound-checkconf[1047]:
> unbound-checkconf: no errors in /etc/unbound/unbound.c>
> May 25 10:30:23 lenovo-gateway.riverside systemd[1]: Started Unbound
> recursive Domain Name Server.
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0]
> notice: init module 0: ipsecmod
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0]
> notice: init module 1: validator
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0]
> notice: init module 2: iterator
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> start of service (unbound 1.8.3).
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master k.root->
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master g.root->
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master f.root->
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master e.root->
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master c.root->
> May 25 10:30:24 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master b.root->
> May 25 10:30:27 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master k.root->
> May 25 10:30:27 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master g.root->
> May 25 10:30:27 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master f.root->
> May 25 10:30:27 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master e.root->
> May 25 10:30:27 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master c.root->
> May 25 10:30:27 lenovo-gateway.riverside unbound[1078]: [1078:0]
> error: .: failed lookup, cannot probe to master b.root->
> May 25 10:30:33 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> May 25 10:30:42 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> May 26 09:27:04 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> May 27 08:00:58 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> May 28 06:06:31 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> May 29 04:18:58 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> May 30 03:44:12 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> May 31 02:26:53 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> Jun 01 02:04:21 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> Jun 02 02:03:43 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> Jun 03 01:40:56 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> Jun 04 01:05:58 lenovo-gateway.riverside unbound[1078]: [1078:0] info:
> generate keytag query _ta-4f66. NULL IN
> Jun 04 06:22:35 lenovo-gateway.riverside unbound[1078]: [1078:2] info:
> generate keytag query _ta-4f66. NULL IN
> Jun 04 06:22:36 lenovo-gateway.riverside unbound[1078]: *** buffer
> overflow detected ***: /usr/sbin/unbound terminated
> Jun 04 06:22:36 lenovo-gateway.riverside systemd[1]: unbound.service:
> Main process exited, code=killed, status=6/ABRT
> Jun 04 06:22:36 lenovo-gateway.riverside systemd[1]: unbound.service:
> Failed with result 'signal'.