1 files changed, 8 insertions, 2 deletions

diff --git a/src/gns/plugin_block_gns.c b/src/gns/plugin_block_gns.c
index aad1f1583..2d61f6395 100644
--- a/src/gns/plugin_block_gns.c
+++ b/src/gns/plugin_block_gns.c
@@ -242,8 +242,14 @@ block_plugin_gns_check_reply (void *cls,
     GNUNET_break (0);
     return GNUNET_BLOCK_REPLY_TYPE_NOT_SUPPORTED;
   }
-  GNUNET_assert (reply_block_size >= sizeof(struct GNUNET_GNSRECORD_Block));
-  GNUNET_assert (GNUNET_GNSRECORD_block_get_size (block) < reply_block_size);
+  if (reply_block_size < sizeof(struct GNUNET_GNSRECORD_Block)) {
+    GNUNET_break_op (0);
+    return GNUNET_BLOCK_REPLY_TYPE_NOT_SUPPORTED;
+  }
+  if (GNUNET_GNSRECORD_block_get_size (block) > reply_block_size) {
+    GNUNET_break_op (0);
+    return GNUNET_BLOCK_REPLY_TYPE_NOT_SUPPORTED;
+  }
   GNUNET_CRYPTO_hash (reply_block,
                       reply_block_size,
                       &chash);