drm/i915: Fix a potential UAF at device unload

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i915_gem_drain_freed_objects() might not be enough to
free all the objects and RCU delayed work might get
scheduled after the i915 device struct gets freed.

Call i915_gem_drain_workqueue() to catch all RCU delayed work.

Suggested-by: Chris Wilson <chris.p.wilson@intel.com>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Nirmoy Das <nirmoy.das@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220923073515.23093-1-nirmoy.das@intel.com

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Nirmoy Das 2022-09-23 09:35:14 +02:00 • committed by Andi Shyti

parent 59cfc750f5

commit c50cec9bab

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/i915/i915_gem.c

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