CVE-2026-98475

In the Linux kernel, the following vulnerability has been resolved:

s390/cmf: Fix virtual vs physical address confusion

The measurement block address is an absolute address. Define the associated schib config and schib fields as dma64 t to enable automatic detection of incorrect assignments. Also add the missing virt to dma64() translation.

Without this fix, a wrong address will be used by firmware when storing extended format channel measurement data on kernels built with CONFIG RANDOMIZE IDENTITY BASE=y.