ALTER PUBLICATION and segmentation fault

On Wed, Mar 8, 2017 at 12:45 AM, Fujii Masao <masao.fujii@gmail.com> wrote:

Hi,

When I logged in PostgreSQL as non-superuser and ran
ALTER PUBLICATION command, I got a segmentation fault.
The code checking the owner of publication might have a bug.

=# CREATE ROLE foo NOSUPERUSER LOGIN
=# \c - foo
=> \dRp
List of publications
Name | Owner | Inserts | Updates | Deletes
-------+----------+---------+---------+---------
mypub | postgres | t | t | t
=> ALTER PUBLICATION mypub RENAME TO hoge;

LOG: server process (PID 80356) was terminated by signal 11: Segmentation fault
DETAIL: Failed process was running: ALTER PUBLICATION mypub RENAME TO hoge;

This issue happen even ALTER SUBSCRIPTION. I guess the main cause is
that acl_kind of pg_publication and pg_subscription of ObjectProperty
array are not correct. These values should be set ACL_KIND_PUBLICATION
and ACL_KIND_SUBSCRIPTION instead of -1. Attached small patch fixes
this issue and adds regression test.

Regards,

--
Masahiko Sawada
NIPPON TELEGRAPH AND TELEPHONE CORPORATION
NTT Open Source Software Center

On 3/7/17 11:56, Masahiko Sawada wrote:

This issue happen even ALTER SUBSCRIPTION. I guess the main cause is
that acl_kind of pg_publication and pg_subscription of ObjectProperty
array are not correct. These values should be set ACL_KIND_PUBLICATION
and ACL_KIND_SUBSCRIPTION instead of -1. Attached small patch fixes
this issue and adds regression test.

committed, thanks

--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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