$OpenBSD$

index 8813cf2..56884d7 100644
--- media/libnestegg/src/nestegg.c.orig	Fri Feb 20 15:40:37 2015
+++ media/libnestegg/src/nestegg.c	Fri Feb 20 15:40:37 2015
@@ -1950,6 +1950,9 @@ nestegg_offset_seek(nestegg * ctx, uint64_t offset)
 {
   int r;
 
+  if (offset > INT64_MAX)
+    return -1;
+
   /* Seek and set up parser state for segment-level element (Cluster). */
   r = ne_io_seek(ctx->io, offset, NESTEGG_SEEK_SET);
   if (r != 0)