jpegdec: Prevent crash when reading image with problems

Check if we have data on the adapter and fail if not.

Fixes #627413

diff --git a/ext/jpeg/gstjpegdec.c b/ext/jpeg/gstjpegdec.c
index 0e90819..333658e 100644 (file)
--- a/ext/jpeg/gstjpegdec.c
+++ b/ext/jpeg/gstjpegdec.c
@@ -211,6 +211,11 @@ gst_jpeg_dec_fill_input_buffer (j_decompress_ptr cinfo)
   GST_DEBUG_OBJECT (dec, "fill_input_buffer: fast av=%u, remaining=%u", av,
       dec->rem_img_len);
 
+  if (av == 0) {
+    GST_DEBUG_OBJECT (dec, "Out of data");
+    return FALSE;
+  }
+
   if (dec->rem_img_len < av)
     av = dec->rem_img_len;
   dec->rem_img_len -= av;