egress-router-cni was added in 4.7 to a collection of CNI images whose binaries are extracted from the container onto the node by the cluster-network-operator. Like the others in this category, its binaries need to be built twice, once for RHEL 7 and again for RHEL 8, so that they function properly with the node's userspace, whether it by BYO RHEL 7 or RHCOS.
Seems like the missing bits are already there on the CNO, so let's just build this image and check. Thanks Yaakov!
In latest logs from the build http://download.eng.bos.redhat.com/brewroot/packages/ose-egress-router-cni-container/v4.7.0/202102060108.p0/data/logs/x86_64-build.log --> FROM sha256:6d934af06cbe54cc9b7957e7bd5922f48e5ae1317dbeea9c8eb5d99cc1fff227 as rhel8 --> FROM sha256:556549de485d7fe8ead5d7037377e09b2412db2a1e348ecebe3195ace1303cde as rhel7
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Moderate: OpenShift Container Platform 4.7.0 security, bug fix, and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2020:5633