diff -up ./lib/softoken/sftkike.c.coverity ./lib/softoken/sftkike.c
--- ./lib/softoken/sftkike.c.coverity	2021-06-18 09:33:59.633405513 -0700
+++ ./lib/softoken/sftkike.c	2021-06-18 09:34:20.305523382 -0700
@@ -1411,7 +1411,6 @@ sftk_fips_IKE_PowerUpSelfTests(void)
         (outKeySize != sizeof(ike_known_sha256_prf_plus)) ||
         (PORT_Memcmp(outKeyData, ike_known_sha256_prf_plus,
                      sizeof(ike_known_sha256_prf_plus)) != 0)) {
-        PORT_ZFree(outKeyData, outKeySize);
         PORT_SetError(SEC_ERROR_LIBRARY_FAILURE);
         return SECFailure;
     }