1 files changed, 3 insertions, 1 deletions

diff --git a/src/lib/libssl/src/ssl/s3_enc.c b/src/lib/libssl/src/ssl/s3_enc.c
index 8f88a4a88d..71a3155c60 100644
--- a/src/lib/libssl/src/ssl/s3_enc.c
+++ b/src/lib/libssl/src/ssl/s3_enc.c
@@ -668,7 +668,9 @@ ssl3_handshake_mac(SSL *s, int md_nid, const char *sender, int len,
         }
         EVP_MD_CTX_init(&ctx);
         EVP_MD_CTX_set_flags(&ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
-        EVP_MD_CTX_copy_ex(&ctx, d);
+
+        if (!EVP_MD_CTX_copy_ex(&ctx, d))
+                return 0;
         n = EVP_MD_CTX_size(&ctx);
         if (n < 0)
                 return 0;