From a153d0f7691486efe0aadfb1e226544ae6d20ffd Mon Sep 17 00:00:00 2001
From: NIIBE Yutaka <gniibe@fsij.org>
Date: Mon, 26 Oct 2020 14:00:26 +0900
Subject: [PATCH] gpg: Fix double free on error.

* g10/card-util.c (card_status): Check an error return.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
---
 g10/card-util.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/g10/card-util.c b/g10/card-util.c
index 3f91fe78f..168427552 100644
--- a/g10/card-util.c
+++ b/g10/card-util.c
@@ -740,7 +740,8 @@ card_status (ctrl_t ctrl, estream_t fp, const char *serialno)
 
   /* Select the original card again.  */
   err = agent_scd_serialno (&serialno1, serialno0);
-  xfree (serialno1);
+  if (!err)
+    xfree (serialno1);
 
  leave:
   xfree (serialno0);