diff --git a/grub-core/io/gzio.c b/grub-core/io/gzio.c
index 4a8eaeae2..4236f0fd4 100644
--- a/grub-core/io/gzio.c
+++ b/grub-core/io/gzio.c
@@ -953,7 +953,7 @@ init_dynamic_block (grub_gzio_t gzio)
 	  if ((unsigned) i + j > n)
 	    {
 	      grub_error (GRUB_ERR_BAD_COMPRESSED_DATA, "too many codes found");
-	      return;
+	      goto fail;
 	    }
 	  while (j--)
 	    ll[i++] = l;
@@ -966,7 +966,7 @@ init_dynamic_block (grub_gzio_t gzio)
 	  if ((unsigned) i + j > n)
 	    {
 	      grub_error (GRUB_ERR_BAD_COMPRESSED_DATA, "too many codes found");
-	      return;
+	      goto fail;
 	    }
 	  while (j--)
 	    ll[i++] = 0;
@@ -981,7 +981,7 @@ init_dynamic_block (grub_gzio_t gzio)
 	  if ((unsigned) i + j > n)
 	    {
 	      grub_error (GRUB_ERR_BAD_COMPRESSED_DATA, "too many codes found");
-	      return;
+	      goto fail;
 	    }
 	  while (j--)
 	    ll[i++] = 0;
@@ -1019,6 +1019,12 @@ init_dynamic_block (grub_gzio_t gzio)
   /* indicate we're now working on a block */
   gzio->code_state = 0;
   gzio->block_len++;
+  return;
+
+ fail:
+  huft_free (gzio->tl);
+  gzio->td = NULL;
+  gzio->tl = NULL;
 }