1 files changed, 2 insertions, 0 deletions
diff --git a/gdk-pixbuf/lzw.c b/gdk-pixbuf/lzw.c
index 105daf2b1..15293560b 100644
--- a/gdk-pixbuf/lzw.c
+++ b/gdk-pixbuf/lzw.c
@@ -121,6 +121,8 @@ lzw_decoder_new (guint8 code_size)
         LZWDecoder *self;
         int i;
 
+        g_return_val_if_fail (code_size <= LZW_CODE_MAX, NULL);
+
         self = g_object_new (lzw_decoder_get_type (), NULL);
 
         self->min_code_size = code_size;