CVE-2026-98593

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

s390/debug: Fix NULL pointer dereference in debug info copy()

When debug register static() fails, it clears areas, active pages and active entries but leaves the area bounds unchanged. Copying such an area, either by opening its view file or via debug dump(), makes debug info copy() dereference the NULL pointers.

Skip the copy loop when the source has no areas.