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916867cd75
Add amdgpu_atpx_buffer_validate() to check that the returned ACPI buffer is of type ACPI_TYPE_BUFFER, is large enough to hold the u16 size field, and that the BIOS-reported size does not exceed the actual allocation length or fall below the minimum required by the caller. Use it in VERIFY_INTERFACE and GET_PX_PARAMETERS callers. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Assisted-by: Claude Sonnet (Cursor AI) Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>