diff --git a/libavformat/aaxdec.c b/libavformat/aaxdec.c
index dd1fbde736..4e352f8ce3 100644
--- a/libavformat/aaxdec.c
+++ b/libavformat/aaxdec.c
@@ -250,6 +250,8 @@ static int aax_read_header(AVFormatContext *s)
 
                 start = avio_rb32(pb);
                 size  = avio_rb32(pb);
+                if (!size)
+                    return AVERROR_INVALIDDATA;
                 a->segments[r].start = start + a->data_offset;
                 a->segments[r].end   = a->segments[r].start + size;
                 if (r &&