1 files changed, 4 insertions, 0 deletions
diff --git a/deflate.c b/deflate.c
index 5eb1faa..7c3f3bc 100644
--- a/deflate.c
+++ b/deflate.c
@@ -2417,6 +2417,10 @@ int deflate_decompress_data(deflate_decompress_ctx *dctx,
 	    debug(("recv: dist %d\n", code));
 	    if (code == -1)
 		goto finished;
+            if (code >= 30) {
+		error = DEFLATE_ERR_BADDISTCODE;
+                goto finished;
+            }
 	    dctx->state = GOTDISTSYM;
 	    dctx->sym = code;
 	    break;