1 files changed, 5 insertions, 1 deletions
diff --git a/security/nss/lib/freebl/ecl/ecp_25519.c b/security/nss/lib/freebl/ecl/ecp_25519.c
index 1e7875fff2..38bd34c501 100644
--- a/security/nss/lib/freebl/ecl/ecp_25519.c
+++ b/security/nss/lib/freebl/ecl/ecp_25519.c
@@ -115,5 +115,9 @@ ec_Curve25519_pt_mul(SECItem *X, SECItem *k, SECItem *P)
         px = P->data;
     }
 
-    return ec_Curve25519_mul(X->data, k->data, px);
+    SECStatus rv = ec_Curve25519_mul(X->data, k->data, px);
+    if (NSS_SecureMemcmpZero(X->data, X->len) == 0) {
+        return SECFailure;
+    }
+    return rv;
 }