kc3-lang/freetype

diff --git a/ChangeLog b/ChangeLog
index da002ab..b01e3c2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,11 @@
 2016-08-16  Werner Lemberg  <wl@gnu.org>
 
+	[lzw] Avoid invalid left shift.
+
+	* src/lzw/ftzopen.c (ft_lzwstate_get_code): Limit `num_bits'.
+
+2016-08-16  Werner Lemberg  <wl@gnu.org>
+
 	[lzw] Avoid buffer overrun.
 
 	Reported as
diff --git a/src/lzw/ftzopen.c b/src/lzw/ftzopen.c
index 32839cc..ae79fdd 100644
--- a/src/lzw/ftzopen.c
+++ b/src/lzw/ftzopen.c
@@ -65,6 +65,9 @@
     FT_Int    result;
 
 
+    if ( num_bits > LZW_MAX_BITS )
+      return -1;
+
     if ( state->buf_clear                    ||
          offset >= state->buf_size           ||
          state->free_ent >= state->free_bits )