From d5d490dd1e2bc1bdb9c0fcc386d96a660fa1e279 Mon Sep 17 00:00:00 2001
From: jsing <>
Date: Sat, 2 Aug 2025 15:47:27 +0000
Subject: Copy EC_FIELD_MODULUS/EC_FIELD_ELEMENTs when copying groups and
 points.

ok tb@
---
 src/lib/libcrypto/ec/ec_lib.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'src/lib/libcrypto/ec/ec_lib.c')

diff --git a/src/lib/libcrypto/ec/ec_lib.c b/src/lib/libcrypto/ec/ec_lib.c
index 7cc7efe73f..36f42ecc05 100644
--- a/src/lib/libcrypto/ec/ec_lib.c
+++ b/src/lib/libcrypto/ec/ec_lib.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: ec_lib.c,v 1.125 2025/05/24 08:25:58 jsing Exp $ */
+/* $OpenBSD: ec_lib.c,v 1.126 2025/08/02 15:47:27 jsing Exp $ */
 /*
  * Originally written by Bodo Moeller for the OpenSSL project.
  */
@@ -165,6 +165,10 @@ EC_GROUP_copy(EC_GROUP *dst, const EC_GROUP *src)
 
 	dst->a_is_minus3 = src->a_is_minus3;
 
+	memcpy(&dst->fm, &src->fm, sizeof(src->fm));
+	memcpy(&dst->fe_a, &src->fe_a, sizeof(src->fe_a));
+	memcpy(&dst->fe_b, &src->fe_b, sizeof(src->fe_b));
+
 	BN_MONT_CTX_free(dst->mont_ctx);
 	dst->mont_ctx = NULL;
 	if (src->mont_ctx != NULL) {
@@ -860,6 +864,10 @@ EC_POINT_copy(EC_POINT *dst, const EC_POINT *src)
 		return 0;
 	dst->Z_is_one = src->Z_is_one;
 
+	memcpy(&dst->fe_x, &src->fe_x, sizeof(dst->fe_x));
+	memcpy(&dst->fe_y, &src->fe_y, sizeof(dst->fe_y));
+	memcpy(&dst->fe_z, &src->fe_z, sizeof(dst->fe_z));
+
 	return 1;
 }
 LCRYPTO_ALIAS(EC_POINT_copy);
-- 
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