[Intel-gfx] [patch 2/2] drm/i915: use after free on error path

Dan Carpenter dan.carpenter at oracle.com
Fri Jul 19 07:46:27 CEST 2013


i915_gem_vma_destroy() frees its argument so we have to move the
drm_mm_remove_node() call up a few lines.

Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 9a9a77a..f347ad5 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -3161,9 +3161,9 @@ search_free:
 	return 0;
 
 err_out:
+	drm_mm_remove_node(&vma->node);
 	i915_gem_vma_destroy(vma);
 	i915_gem_object_unpin_pages(obj);
-	drm_mm_remove_node(&vma->node);
 	return ret;
 }
 



More information about the Intel-gfx mailing list