diff --git a/media/liboggz/src/liboggz/oggz_seek.c b/media/liboggz/src/liboggz/oggz_seek.c
--- a/media/liboggz/src/liboggz/oggz_seek.c
+++ b/media/liboggz/src/liboggz/oggz_seek.c
@@ -750,9 +750,11 @@ oggz_bounded_seek_set (OGGZ * oggz,
     if (offset_guess > offset_end) {
       offset_guess = offset_end;
       offset_at = oggz_seek_raw (oggz, offset_guess, SEEK_SET);
+      if (offset_at == -1) return -1;
       offset_next = oggz_get_prev_start_page (oggz, og, &granule_at, &serialno);
     } else {
       offset_at = oggz_seek_raw (oggz, offset_guess, SEEK_SET);
+      if (offset_at == -1) return -1;
       offset_next = oggz_get_next_start_page (oggz, og);
       serialno = ogg_page_serialno (og);
       granule_at = ogg_page_granulepos (og);