OpenBSD Errata: October 28th, 2019 (bpf)
27 October, 2019 by firstname.lastname@example.org | openbsd
Errata patches for BPF have been released for OpenBSD 6.6. bpf(4) has a race condition during device removal. Binary updates for the amd64, i386, and arm64 platforms are available via the syspatch utility. Source code patches can be found on the respective errata page: https://www.openbsd.org/errata66.html As these affect the kernel, a reboot will be needed after patching.