CVE-2026-74491 of/address: Fix NULL bus dereference in of_pci_range_parser_one()

In the Linux kernel, the following vulnerability has been resolved: of/address: Fix NULL bus dereference in ofpcirangeparserone The bus matching rework made ofmatchbus return NULL for nodes with ranges/dma-ranges but no local address-cells. parserinit stored that NULL bus, and the range iterator...