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Pull VFIO fixes from Alex Williamson: - Fix overflows in vfio type1 backend for mappings at the end of the 64-bit address space, resulting in leaked pinned memory. New selftest support included to avoid such issues in the future (Alex Mastro) * tag 'vfio-v6.18-rc4' of https://github.com/awilliam/linux-vfio: vfio: selftests: add end of address space DMA map/unmap tests vfio: selftests: update DMA map/unmap helpers to support more test kinds vfio/type1: handle DMA map/unmap up to the addressable limit vfio/type1: move iova increment to unmap_unpin_*() caller vfio/type1: sanitize for overflow using check_*_overflow()