From a76af6ce719b9c43dd86ffd6ead90dfec0d2c294 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Marco=20Trevisan=20=28Trevi=C3=B1o=29?= <mail@3v1n0.net>
Date: Fri, 4 Dec 2020 22:00:40 +0100
Subject: [PATCH] pam_fprintd: Clear the data value before setting it if set

---
 pam/pam_fprintd.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pam/pam_fprintd.c b/pam/pam_fprintd.c
index 036e2f5..d7d0681 100644
--- a/pam/pam_fprintd.c
+++ b/pam/pam_fprintd.c
@@ -203,6 +203,11 @@ verify_result (sd_bus_message *m,
 	if (debug)
 		pam_syslog (data->pamh, LOG_DEBUG, "Verify result: %s (done: %d)", result, done ? 1 : 0);
 
+	if (data->result) {
+		free (data->result);
+		data->result = NULL;
+	}
+
 	if (done) {
 		data->result = strdup (result);
 		return 0;