Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> wrote: > On Mon, Jul 10, 2023 at 04:41:27PM +0200, Igor Raits wrote: > > Hello Florian, > > > > On Mon, Jul 10, 2023 at 2:49 PM Florian Westphal <fw@xxxxxxxxx> wrote: > > > > > > Florian Westphal <fw@xxxxxxxxx> wrote: > > > > Igor Raits <igor@xxxxxxxxxxxx> wrote: > > > > > Hello, > > > > > > > > > > We started to observe the issue regarding ebtables-nft and how it > > > > > can't wipe rules when specifying full rule. Removing the rule by index > > > > > works fine, though. Also with kernel 6.1.y it works completely fine. > > > > > > > > > > I've started with 1.8.8 provided in CentOS Stream 9, then tried the > > > > > latest git version and all behave exactly the same. See the behavior > > > > > below. As you can see, simple DROP works, but more complex one do not. > > > > > > > > > > As bugzilla requires some special sign-up procedure, apologize for > > > > > reporting it directly here in the ML. > > > > > > > > Thanks for the report, I'll look into it later today. > > > > > > Its a bug in ebtables-nft, it fails to delete the rule since > > > > > > 938154b93be8cd611ddfd7bafc1849f3c4355201, > > > netfilter: nf_tables: reject unbound anonymous set before commit phase > > > > > > But its possible do remove the rule via > > > nft delete rule .. handle $x > > > > > > so the breakge is limited to ebtables-nft. > > > > Thanks for confirmation and additional information regarding where > > exactly the issue was introduced. > > The ebtables-nft (well, ebtables in general) is heavily used by the > > OpenStack Neutron (in linuxbridge mode), so this breaks our setup > > quite a bit. Would you recommend to revert kernel change or would you > > have the actual fix soon (ebtables-nft or kernel)? > > Just to make sure this bug is not caused by something else. No no no, this is a userspace bug. netfilter: nf_tables: reject unbound anonymous set before commit phase ebtables-nft emits a DELRULE followed by creation of a (dangling!) anon set, because backend code that handles add/delete is identical, so 'delete' request for among schedules addition of the set.
