lsfd: fix memory leak in append_filter_expr()

(cherry picked from commit f90264c6409a9e41d1130bc4be6b1a5bdc37cd96)

backport-lsfd-fix-memory-leak-in-append_filter_expr.patch

@@ -0,0 +1,25 @@
+From 53bcec4b25a60c125403a80a18ca3aacf1dc8269 Mon Sep 17 00:00:00 2001
+From: Karel Zak <kzak@redhat.com>
+Date: Thu, 25 Apr 2024 15:12:56 +0800
+Subject: [PATCH] lsfd: fix memory leak in append_filter_expr()
+
+---
+ misc-utils/lsfd.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/misc-utils/lsfd.c b/misc-utils/lsfd.c
+index 9f74862..56c0f7a 100644
+--- a/misc-utils/lsfd.c
++++ b/misc-utils/lsfd.c
+@@ -1590,6 +1590,8 @@ static void append_filter_expr(char **a, const char *b, bool and)
+ 		xstrappend(a, "or(");
+ 	xstrappend(a, b);
+ 	xstrappend(a, ")");
++
++	free(tmp);
+ }
+ 
+ static struct lsfd_filter *new_filter(const char *expr, bool debug, const char *err_prefix, struct lsfd_control *ctl)
+-- 
+2.27.0
+

util-linux.spec

@@ -3,7 +3,7 @@
 
 Name:           util-linux
 Version:        2.39.1
-Release:        6
+Release:        7
 Summary:        A random collection of Linux utilities
 License:        GPLv2 and GPLv2+ and LGPLv2+ and BSD with advertising and Public Domain
 URL:            https://git.kernel.org/pub/scm/utils/util-linux/util-linux.git
@@ -30,6 +30,7 @@ Patch6008:      backport-CVE-2024-28085.patch
 Patch6009:      backport-tests-test_mkfds-netlink-pass-a-correct-file-descrip.patch
 Patch6010:      backport-tests-functions.sh-add-a-helper-funcion-making-a-dev.patch
 Patch6011:      backport-tests-lsfd-don-t-refer-on-the-line-follwoing-the-use.patch
+Patch6012:      backport-lsfd-fix-memory-leak-in-append_filter_expr.patch
 
 Patch9000:      SKIPPED-no-root-permissions-test.patch
 %ifarch sw_64
@@ -414,6 +415,12 @@ fi
 %endif
 
 %changelog
+* Thu Apr 25 2024 liuh <liuhuan01@kylinos.cn> - 2.39.1-7
+- Type:bugfix
+- CVE:NA
+- SUG:NA
+- DESC:fix memory leak in append_filter_expr()
+
 * Mon Apr 15 2024 zhangyao <zhangyao108@huawei.com> - 2.39.1-6
 - Type:bugfix
 - CVE:NA