e_pixmap: Fix memory corruption in _e_pixmap_tzsurf_shm_cb_flusher_get()

If ec->pixmap already has ec->pixmap->shm_flusher,
then we should unset user_data.

Change-Id: I42b02542e3140eb3b2abfe98455e1c95096a793b
Signed-off-by: Minsu Han <minsu81.han@samsung.com>

diff --git a/src/bin/e_pixmap.c b/src/bin/e_pixmap.c
index b5b4315699c232f4d0accd9d1538c8ba28e94766..24c3a3addff312c427194994928fc6f911824dbd 100644 (file)
--- a/src/bin/e_pixmap.c
+++ b/src/bin/e_pixmap.c
@@ -239,6 +239,9 @@ _e_pixmap_tzsurf_shm_cb_flusher_get(struct wl_client *client, struct wl_resource
         return;
      }
 
+   if (ec->pixmap->shm_flusher)
+      wl_resource_set_user_data(ec->pixmap->shm_flusher, NULL);
+
    wl_resource_set_implementation(res, &_tzsurf_shm_flusher_iface, ec->pixmap,
                                   _e_pixmap_tzsurf_shm_flusher_cb_res_destroy);