diff --git a/libavcodec/vorbisdec.c b/libavcodec/vorbisdec.c
index 3805d27627..790abb6111 100644
--- a/libavcodec/vorbisdec.c
+++ b/libavcodec/vorbisdec.c
@@ -572,6 +572,11 @@ static int vorbis_parse_setup_hdr_floors(vorbis_context *vc)
             floor_setup->data.t0.order          = get_bits(gb,  8);
             floor_setup->data.t0.rate           = get_bits(gb, 16);
             floor_setup->data.t0.bark_map_size  = get_bits(gb, 16);
+            if (floor_setup->data.t0.bark_map_size == 0) {
+                av_log(vc->avccontext, AV_LOG_ERROR,
+                       "Floor 0 bark map size is 0.\n");
+                return AVERROR_INVALIDDATA;
+            }
             floor_setup->data.t0.amplitude_bits = get_bits(gb,  6);
             /* zero would result in a div by zero later *
              * 2^0 - 1 == 0                             */