Can't check a size_t for < 0.

diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index 1d336c2149b4887337b695a41f02907f8487bd52..ff25151b32dd1ef1e51c006455f97113b34630aa 100644 (file)
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -1393,7 +1393,9 @@ unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned cha
                 const unsigned short ext_len = 2;
                 const unsigned char list_len = 1;
 
-               if ((lenmax = limit - ret - 6) < 0) return NULL;
+               if (limit < ret + 6)
+                       return NULL;
+               lenmax = limit - ret - 6;
 
                s2n(TLSEXT_TYPE_server_authz, ret);
                 /* Extension length: 2 bytes */