openbsd 7.9 · errata 043
If pf is configured with FQ-CoDel queueing, sustained traffic overloading a queue could wrap a drop counter and disturb queue management.
installera
# syspatch
källpatch
signify -Vep /etc/signify/openbsd-79-base.pub -x 043_pffq.patch.sig \
-m - | (cd /usr/src && patch -p0)
And then rebuild and install a new kernel:
KK=`sysctl -n kern.osversion | cut -d# -f1`
cd /usr/src/sys/arch/`machine`/compile/$KK
make obj
make config
make
make install