1 files changed, 2 insertions, 1 deletions
diff --git a/ssl/t1_lib.c b/ssl/t1_lib.c
index 51c2283db915..e6f4bcc04533 100644
--- a/ssl/t1_lib.c
+++ b/ssl/t1_lib.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
  *
  * Licensed under the Apache License 2.0 (the "License").  You may not use
  * this file except in compliance with the License.  You can obtain a copy
@@ -765,6 +765,7 @@ int tls1_set_groups_list(SSL_CTX *ctx, uint16_t **pext, size_t *pextlen,
     tmparr = OPENSSL_memdup(gcb.gid_arr, gcb.gidcnt * sizeof(*tmparr));
     if (tmparr == NULL)
         goto end;
+    OPENSSL_free(*pext);
     *pext = tmparr;
     *pextlen = gcb.gidcnt;
     ret = 1;