Check rng return value when seeding OpenSSL RNG

diff --git a/src/libstrongswan/plugins/openssl/openssl_plugin.c b/src/libstrongswan/plugins/openssl/openssl_plugin.c
index 7daa92bef5f01d9936d430bc274fec09f40463c7..08d7d15b257e40a9f7763d36bc54f10872dde6e0 100644 (file)
--- a/src/libstrongswan/plugins/openssl/openssl_plugin.c
+++ b/src/libstrongswan/plugins/openssl/openssl_plugin.c
@@ -174,7 +174,11 @@ static bool seed_rng()
                                return FALSE;
                        }
                }
-               rng->get_bytes(rng, sizeof(buf), buf);
+               if (!rng->get_bytes(rng, sizeof(buf), buf))
+               {
+                       rng->destroy(rng);
+                       return FALSE;
+               }
                RAND_seed(buf, sizeof(buf));
        }
        DESTROY_IF(rng);