diff -up openssl-3.0.0-alpha16/ssl/statem/extensions.c.reneg openssl-3.0.0-alpha16/ssl/statem/extensions.c
--- openssl-3.0.0-alpha16/ssl/statem/extensions.c.reneg	2021-06-04 10:03:01.313023512 +0200
+++ openssl-3.0.0-alpha16/ssl/statem/extensions.c	2021-06-04 10:05:43.019538516 +0200
@@ -45,6 +45,7 @@ static int tls_parse_certificate_authori
 #ifndef OPENSSL_NO_SRP
 static int init_srp(SSL *s, unsigned int context);
 #endif
+static int init_ec_point_formats(SSL *s, unsigned int context);
 static int init_etm(SSL *s, unsigned int context);
 static int init_ems(SSL *s, unsigned int context);
 static int final_ems(SSL *s, unsigned int context, int sent);
@@ -158,7 +159,7 @@ static const EXTENSION_DEFINITION ext_de
         TLSEXT_TYPE_ec_point_formats,
         SSL_EXT_CLIENT_HELLO | SSL_EXT_TLS1_2_SERVER_HELLO
         | SSL_EXT_TLS1_2_AND_BELOW_ONLY,
-        NULL, tls_parse_ctos_ec_pt_formats, tls_parse_stoc_ec_pt_formats,
+        init_ec_point_formats, tls_parse_ctos_ec_pt_formats, tls_parse_stoc_ec_pt_formats,
         tls_construct_stoc_ec_pt_formats, tls_construct_ctos_ec_pt_formats,
         final_ec_pt_formats
     },
@@ -1144,6 +1145,15 @@ static int init_srp(SSL *s, unsigned int
 }
 #endif
 
+static int init_ec_point_formats(SSL *s, unsigned int context)
+{
+    OPENSSL_free(s->ext.peer_ecpointformats);
+    s->ext.peer_ecpointformats = NULL;
+    s->ext.peer_ecpointformats_len = 0;
+
+    return 1;
+}
+
 static int init_etm(SSL *s, unsigned int context)
 {
     s->ext.use_etm = 0;