Merge tag 'drm-intel-fixes-2024-06-27' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes

drm/i915 fixes for v6.10-rc6:
- Fix potential UAF due to race on fence register revocation

Signed-off-by: Dave Airlie <[email protected]>
From: Jani Nikula <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: airlied

drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c

@@ -298,6 +298,7 @@ void i915_vma_revoke_fence(struct i915_vma *vma)
 		return;
 
 	GEM_BUG_ON(fence->vma != vma);
+	i915_active_wait(&fence->active);
 	GEM_BUG_ON(!i915_active_is_idle(&fence->active));
 	GEM_BUG_ON(atomic_read(&fence->pin_count));