[Bug 238870] sys.netpfil.pf.names.names and sys.netpfil.pf.synproxy.synproxy cause panic

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238870

--- Comment #16 from Kristof Provost <kp at freebsd.org> ---
(Adding what was already discussed on IRC)
The above patch (or an alternative version where the ifnet is if_ref()ed before
the NET_EPOCH_EXIT()) does not fix the problem.

My current understanding is that this is because an ifp_detach() of an epair
will remove two interfaces, which can mean we're deleting one while it's being
moved to a different vnet.

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