On 03/21/2016 06:08 AM, Aleksander Alekseev wrote: > As you may see there are "holes" that were in fact not filled. Under > normal conditions they will be filled with data previously stored on > stack which could be anything including passwords and other private > data. Afterwards this structure is written to disk where potentially > someone who not supposed to see this data may see it. > > I realize this is not a big problem in practice.
Well, the documentation already says to avoid it: http://www.postgresql.org/docs/current/static/xfunc-c.html Another important point is to avoid leaving any uninitialized bits within data type values; for example, take care to zero out any alignment padding bytes that might be present in structs. so I don't think what you're suggesting would be controversial at all; it looks like what you've done is found a(t least one) bug where the documented practice wasn't followed, and it's good to find any such places. -Chap -- Sent via pgsql-hackers mailing list (email@example.com) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers