On Fri, Nov 01, 2024 at 12:02:14AM +0100, Florian Westphal wrote: > Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> wrote: > > # nft -f test.nft > > test.nft:3:32-45: Error: Could not process rule: Operation not supported > > udp dport 4789 vxlan ip saddr 1.2.3.4 > > ^^^^^^^^^^^^^^ > > > > Reverting "netfilter: nf_tables: must hold rcu read lock while iterating expression type list" > > makes it work for me again. > > > > Are you compiling nf_tables built-in there? I make as a module, the > > type->owner is THIS_MODULE which refers to nf_tables.ko? > > Indeed, this doesn't work. > > But I cannot remove this test, this code looks broken to me in case > inner type is its own module. > > No idea yet how to fix this. I'm missing why this check is required by now. Only meta and payload provide inner_ops and they are always built-in. I understand this is an issue if more expressions are supported in the future.