| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | Rushabh Lathia <rushabh(dot)lathia(at)gmail(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Rushabh Lathia <rushabh(dot)lathia(at)enterprisedb(dot)com> |
| Subject: | Re: [BUGS] Server crash while trying to read expression using pg_get_expr() |
| Date: | 2010-06-09 14:34:57 |
| Message-ID: | 24476.1276094097@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-bugs pgsql-hackers |
Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> writes:
> We have two options:
> 1. Make pg_get_expr() handle arbitrary (possibly even malicious) input
> gracefully.
> 2. Restrict pg_get_expr() to superusers only.
I think #1 is a fool's errand. There is far too much structure to a
node tree that is outside the scope of what readfuncs.c is capable of
understanding.
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Heikki Linnakangas | 2010-06-09 14:38:42 | Re: [BUGS] Server crash while trying to read expression using pg_get_expr() |
| Previous Message | Tom Lane | 2010-06-09 14:32:05 | Re: BUG #5495: RI/FK on self and inherited table |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Heikki Linnakangas | 2010-06-09 14:38:42 | Re: [BUGS] Server crash while trying to read expression using pg_get_expr() |
| Previous Message | Robert Haas | 2010-06-09 13:37:11 | Re: Adding XMLEXISTS to the grammar |