CentOS Errata and Security Advisory 2008:0972 Important
https://rhn.redhat.com/errata/RHSA-2008-0972.html

The following updated files have been uploaded and are currently syncing to the mirrors:

x86_64:
kernel-2.6.9-78.0.8.EL.x86_64.rpm
kernel-devel-2.6.9-78.0.8.EL.x86_64.rpm
kernel-doc-2.6.9-78.0.8.EL.noarch.rpm
kernel-largesmp-2.6.9-78.0.8.EL.x86_64.rpm
kernel-largesmp-devel-2.6.9-78.0.8.EL.x86_64.rpm
kernel-smp-2.6.9-78.0.8.EL.x86_64.rpm
kernel-smp-devel-2.6.9-78.0.8.EL.x86_64.rpm
kernel-xenU-2.6.9-78.0.8.EL.x86_64.rpm
kernel-xenU-devel-2.6.9-78.0.8.EL.x86_64.rpm

src:
kernel-2.6.9-78.0.8.EL.src.rpm