On Wed, Jun 12, 2019 at 05:25:37PM -0400, Bruce Momjian wrote:
> Since we did not backpatch this fix, I am hesitant to spell out exactly
> how to exploit this DOS attack. Yes, people can read it in the email
> archives, and commit messages, but I don't see the value in spelling it
> out the release notes too.
We could go for a more general version of that, for the reason that it
involves all relations, like:
"A caller of TRUNCATE or VACUUM could previously queue for an access
exclusive lock on a relation it may not have permission to truncate or
vacuum, leading to relations to be blocked from being accessed."
--
Michael