[PATCH 0/5] mm,drm/i915,powerpc/spufs: vm_ops->access related fixes

["David Hildenbrand (Arm)" <david@kernel.org>]

While working on vm_ops->access related fixes in core code for FOLL_ANON
and VMA access permission + size handling, I stumbled over two driver
issues. Also, I have to update one selftest that specifies PROT_WRITE
but actually wants read-access.

Fixing it all in this series, because it's all intertwined.

In patch #5 we break a debugging use case for older ROCm versions, where
the amdgpu driver hacked around it by exploiting broken access checks in
core-mm.

Tested as good as I can with selftests. I cannot really test the
i915 and powerpc/spufs stuff on real hardware.

Signed-off-by: David Hildenbrand (Arm) <david@kernel.org>
---
Chris Mason (1):
      mm: do not call vm_ops->access with FOLL_ANON

David Hildenbrand (Arm) (4):
      drm/i915: consider vm_pgoff in vm_access()
      drm/i915/selftests: request read access for mmap access tests
      powerpc/spufs: consider vm_pgoff in spufs_mem_mmap_access()
      mm: check permissions and bounds for vm_ops->access

 arch/powerpc/platforms/cell/spufs/file.c           |  3 ++-
 drivers/gpu/drm/i915/gem/i915_gem_mman.c           |  4 +++-
 drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c |  3 ++-
 mm/memory.c                                        | 28 ++++++++++++++++++++--
 4 files changed, 33 insertions(+), 5 deletions(-)

---

base-commit: cc06c90c164a389d51444a7df5056a8460d26d5b

change-id: 20261112-access_shite-d8a47559572e

--

Cheers,

David