handle_pub_key_null_in_ec_key_set_public_key.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jeremy Apthorp <nornagon@nornagon.net>
Date: Mon, 4 Mar 2019 10:59:35 -0800
Subject: handle pub_key == null in EC_KEY_set_public_key


diff --git a/crypto/fipsmodule/ec/ec_key.c b/crypto/fipsmodule/ec/ec_key.c
index 4bc12a073650f66f5ae8ba2beabb9a6fb2b21878..7e86ccb0d76c66f32fc05c7093c870d5da7b9994 100644
--- a/crypto/fipsmodule/ec/ec_key.c
+++ b/crypto/fipsmodule/ec/ec_key.c
@@ -267,7 +267,7 @@ int EC_KEY_set_public_key(EC_KEY *key, const EC_POINT *pub_key) {
     return 0;
   }
 
-  if (EC_GROUP_cmp(key->group, pub_key->group, NULL) != 0) {
+  if (pub_key != NULL && EC_GROUP_cmp(key->group, pub_key->group, NULL) != 0) {
     OPENSSL_PUT_ERROR(EC, EC_R_GROUP_MISMATCH);
     return 0;
   }