Bug: GSSAPI: Unexpected NUL in auth data

[Paul Banks]

Hi,

After upgrading server to v2.3.11.3 (Arch linux). I can no
longer connect from Evolution client to the server via GSSAPI
(Kerberos). I get the following message in the log:

	auth: Debug: gssapi(?,x.x.x.x,<XXX>): Unexpected NUL in auth
data

The bug appears to have been introduced by this patch:

https://github.com/dovecot/core/commit/d196f4c83c7383c17440d39eb994b4cd9ff5af52

Should mech_gssapi also have the MECH_SEC_ALLOW_NULS flag set?

Kind regards,

Paul