From a8b10483e1e3d57db137306acd043dbc72ea2a39 Mon Sep 17 00:00:00 2001
From: emmansun <emman.sun@foxmail.com>
Date: Fri, 21 Jul 2023 21:07:50 +0800
Subject: [PATCH] sm9/bn256: fix gfpTriple generic implementation issue

---
 sm9/bn256/gfp_generic.go | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sm9/bn256/gfp_generic.go b/sm9/bn256/gfp_generic.go
index c6c2f8a..29264f0 100644
--- a/sm9/bn256/gfp_generic.go
+++ b/sm9/bn256/gfp_generic.go
@@ -47,8 +47,9 @@ func gfpDouble(c, a *gfP) {
 }
 
 func gfpTriple(c, a *gfP) {
-	gfpAdd(c, a, a)
-	gfpAdd(c, c, a)
+	t := &gfP{}
+	gfpAdd(t, a, a)
+	gfpAdd(c, t, a)
 }
 
 func gfpSub(c, a, b *gfP) {