drm/imagination: Disallow exporting of PM/FW protected objects

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commit 6b991ad8dc upstream.

These objects are meant to be used by the GPU firmware or by the PM unit
within the GPU, in which case they may contain physical addresses.

This adds a layer of protection against exposing potentially exploitable
information outside of the driver.

Fixes: ff5f643de0 ("drm/imagination: Add GEM and VM related code")
Signed-off-by: Alessio Belle <alessio.belle@imgtec.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/20251208-no-export-pm-fw-obj-v1-1-83ab12c61693@imgtec.com
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Alessio Belle 2025-12-08 09:11:00 +00:00 • committed by Greg Kroah-Hartman

parent 5487edb7b8

commit e8469ef3d4

1 changed files with 11 additions and 0 deletions

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drivers/gpu/drm/imagination/pvr_gem.c

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