On Fri, May 15, 2020 at 11:27:12PM +0200, Florian Westphal wrote: > conntrackd has support for userspace-based connection tracking helpers, > to move parsing of control packets to userspace. I posted a patch that simplifies this logic by checking for: helper->flags & NF_CT_HELPER_F_USERSPACE from the nf_conntrack_update path. https://patchwork.ozlabs.org/project/netfilter-devel/patch/20200524195410.28502-2-pablo@xxxxxxxxxxxxx/ There was another issue that I have also fixed. Thanks for posting your patch.