From c173563ad2d7a9483762c584899b9af09edb750d Mon Sep 17 00:00:00 2001
From: Jakub Jelen <jjelen@redhat.com>
Date: Mon, 11 Nov 2019 13:41:50 +0100
Subject: [PATCH] coolkey: Accept only SW=90 00 as success to prevent
 interpretting invalid values

---
 src/libopensc/card-coolkey.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libopensc/card-coolkey.c b/src/libopensc/card-coolkey.c
index 53da0abc..b7985741 100644
--- a/src/libopensc/card-coolkey.c
+++ b/src/libopensc/card-coolkey.c
@@ -897,7 +897,7 @@ static int coolkey_check_sw(sc_card_t *card, unsigned int sw1, unsigned int sw2)
 	sc_log(card->ctx, 
 		"sw1 = 0x%02x, sw2 = 0x%02x\n", sw1, sw2);
 
-	if (sw1 == 0x90)
+	if (sw1 == 0x90 && sw2 == 0x00)
 		return SC_SUCCESS;
 
 	if (sw1 == 0x9c) {