RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.

See https://bugzilla.redhat.com/show_bug.cgi?id=1630260

Specifically https://bugzilla.redhat.com/show_bug.cgi?id=1630260#c24

TL;DR it's possible for 8.1 glib will switch to making usage of g_hmac_*() a fatal error.  You need to switch to a FIPS-validated library such as OpenSSL.

GHMac is only being used in src/ssh/cockpitsshknownhosts.c. This is only a backwards compat shim for libssh 0.7, i. e. for RHEL 7 builds. This entire file isn't built for RHEL 8:

if !HAVE_SSH_SESSION_HAS_KNOWN_HOSTS_ENTRY
libcockpit_ssh_a_SOURCES += \
        src/ssh/cockpitsshknownhosts.h \
        src/ssh/cockpitsshknownhosts.c \
        $(NULL)
endif

So this isn't an issue for RHEL 8.

As soon as RHEL 7.7 is released, we can stop supporting RHEL 7 in our upstream master branch and then throw out two metric tons of obsolete code, also this one. :-) But this will just affect source code grepping, not runtime behaviour.