backport device: Fix client_username memory leak

0001-device-Fix-client_username-memory-leak.patch

@@ -0,0 +1,47 @@
+From 267e6b3238f41b19b61b6502d52769c06df1c8f6 Mon Sep 17 00:00:00 2001
+From: Bastien Nocera <hadess@hadess.net>
+Date: Thu, 23 Aug 2018 13:44:14 +0200
+Subject: [PATCH] device: Fix client_username memory leak
+
+No need to duplicate that string until we pass it out.
+
+From https://bugs.launchpad.net/ubuntu/+source/fprintd/+bug/1745455/comments/7
+---
+ src/device.c | 6 ++----
+ 1 file changed, 2 insertions(+), 4 deletions(-)
+
+diff --git a/src/device.c b/src/device.c
+index e9b89bc..a305c9f 100644
+--- a/src/device.c
++++ b/src/device.c
+@@ -469,7 +469,6 @@ _fprint_device_check_for_username (FprintDevice *rdev,
+ 	char *sender;
+ 	unsigned long uid;
+ 	struct passwd *user;
+-	char *client_username;
+ 
+ 	/* Get details about the current sender, and username/uid */
+ 	conn = dbus_g_connection_get_connection (fprintd_dbus_conn);
+@@ -490,17 +489,16 @@ _fprint_device_check_for_username (FprintDevice *rdev,
+ 			    "Failed to get information about user UID %lu", uid);
+ 		return NULL;
+ 	}
+-	client_username = g_strdup (user->pw_name);
+ 
+ 	/* The current user is usually allowed to access their
+ 	 * own data, this should be followed by PolicyKit checks
+ 	 * anyway */
+-	if (username == NULL || *username == '\0' || g_str_equal (username, client_username)) {
++	if (username == NULL || *username == '\0' || g_str_equal (username, user->pw_name)) {
+ 		if (ret_sender != NULL)
+ 			*ret_sender = sender;
+ 		else
+ 			g_free (sender);
+-		return client_username;
++		return g_strdup (user->pw_name);
+ 	}
+ 
+ 	/* If we're not allowed to set a different username,
+-- 
+2.33.0
+

fprintd.spec

@@ -1,11 +1,13 @@
 Name:             fprintd
 Version:          0.8.1
-Release:          5
+Release:          6
 Summary:          Support for consumer fingerprint reader devices
 License:          GPLv2+
 Url:              http://www.freedesktop.org/wiki/Software/fprint/fprintd
 Source0:          https://gitlab.freedesktop.org/libfprint/fprintd/uploads/bdd9f91909f535368b7c21f72311704a/%{name}-%{version}.tar.xz
 
+Patch0001:        0001-device-Fix-client_username-memory-leak.patch
+
 BuildRequires:    dbus-glib-devel pam-devel libfprint-devel >= 0.1.0 polkit-devel gtk-doc
 BuildRequires:    intltool autoconf automake libtool perl-podlators pkgconfig(systemd)
 
@@ -81,6 +83,9 @@ fi
 %{_mandir}/man1/fprintd.1.gz
 
 %changelog
+* Fri Dec 22 2023 liyuanyuan <liyuanyuan@xfusion.com> - 0.8.1-6
+- device: Fix client_username memory leak
+
 * Fri Feb 26 2021 lingsheng <lingsheng@huawei.com> - 0.8.1-5
 - Disable with-fingerprint when with-fingerprint is enabled