diff --git a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2videodec.c b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2videodec.c
index c7f39ddee2..7814bae03d 100644
--- a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2videodec.c
+++ b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2videodec.c
@@ -1446,11 +1446,16 @@ gst_v4l2_video_dec_register (GstPlugin * plugin, const gchar * basename,
     cdata->device = g_strdup (device_path);
     cdata->sink_caps = gst_caps_new_empty ();
     gst_caps_append_structure (cdata->sink_caps, gst_structure_copy (s));
+    GST_MINI_OBJECT_FLAG_SET (cdata->sink_caps,
+        GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
     cdata->src_caps = gst_caps_ref (src_caps);
     type_name = gst_v4l2_video_dec_set_metadata (s, cdata, basename);
 
     /* Skip over if we hit an unmapped type */
     if (!type_name) {
+      g_free (cdata->device);
+      gst_caps_unref (cdata->sink_caps);
+      gst_caps_unref (cdata->src_caps);
       g_free (cdata);
       continue;
     }
diff --git a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2videoenc.c b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2videoenc.c
index 1edb88e646..b4317cfab2 100644
--- a/subprojects/gst-plugins-good/sys/v4l2/gstv4l2videoenc.c
+++ b/subprojects/gst-plugins-good/sys/v4l2/gstv4l2videoenc.c
@@ -1249,6 +1249,7 @@ gst_v4l2_video_enc_register (GstPlugin * plugin, GType type,
   GValue value = G_VALUE_INIT;
 
   filtered_caps = gst_caps_intersect (src_caps, codec_caps);
+  GST_MINI_OBJECT_FLAG_SET (filtered_caps, GST_MINI_OBJECT_FLAG_MAY_BE_LEAKED);
 
   if (codec != NULL && video_fd != -1) {
     if (gst_v4l2_codec_probe_levels (codec, video_fd, &value)) {
@@ -1265,7 +1266,7 @@ gst_v4l2_video_enc_register (GstPlugin * plugin, GType type,
   cdata = g_new0 (GstV4l2VideoEncCData, 1);
   cdata->device = g_strdup (device_path);
   cdata->sink_caps = gst_caps_ref (sink_caps);
-  cdata->src_caps = gst_caps_ref (filtered_caps);
+  cdata->src_caps = filtered_caps;
   cdata->codec = codec;
 
   g_type_query (type, &type_query);