CentOS Errata and Security Advisory 2008:0211
https://rhn.redhat.com/errata/RHSA-2008-0211.html
The following updated files have been uploaded and are currently syncing to the mirrors:
s390: updates/s390/RPMS/kernel-2.4.21-57.EL.s390.rpm updates/s390/RPMS/kernel-doc-2.4.21-57.EL.s390.rpm updates/s390/RPMS/kernel-source-2.4.21-57.EL.s390.rpm updates/s390/RPMS/kernel-unsupported-2.4.21-57.EL.s390.rpm
s390x: updates/s390x/RPMS/kernel-2.4.21-57.EL.s390x.rpm updates/s390x/RPMS/kernel-doc-2.4.21-57.EL.s390x.rpm updates/s390x/RPMS/kernel-source-2.4.21-57.EL.s390x.rpm updates/s390x/RPMS/kernel-unsupported-2.4.21-57.EL.s390x.rpm