1 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index c55f338e380b..7199bba68c37 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -334,6 +334,12 @@ int drm_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
         if (!obj)
                 return -ENOENT;
 
+        /* Don't allow imported objects to be mapped */
+        if (obj->import_attach) {
+                ret = -EINVAL;
+                goto out;
+        }
+
         ret = drm_gem_create_mmap_offset(obj);
         if (ret)
                 goto out;