diff --git a/src/video_output/vout_pictures.c b/src/video_output/vout_pictures.c
index 68656bc..ce35df4 100644
--- a/src/video_output/vout_pictures.c
+++ b/src/video_output/vout_pictures.c
@@ -570,8 +570,13 @@ int __vout_AllocatePicture( vlc_object_t *p_this, picture_t
     }

     /* Calculate how big the new image should be */
-    size_t i_bytes = (size_t)p_pic->format.i_bits_per_pixel *
-        i_width_aligned * i_height_aligned / 8;
+    uint64_t i_pixels = i_width_aligned * i_height_aligned;
+    uint64_t i_bytes = i_pixels * p_pic->format.i_bits_per_pixel / 8;
+    if( i_bytes > SIZE_MAX || i_bytes < i_pixels ) /* prevent overflow */
+    {
+        p_pic->i_planes = 0;
+        return VLC_ENOMEM;
+    }

     p_pic->p_data = vlc_memalign( &p_pic->p_data_orig, 16, i_bytes );