Fix version string memory leak

Signed-off-by: Bolehu <heyaohua@xfusion.com>

backport-trace-cmd-library-Fix-version-string-memory-leak.patch

@@ -0,0 +1,39 @@
+From c5d548379b25705c2061b8c010f78fd242212f65 Mon Sep 17 00:00:00 2001
+From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
+Date: Tue, 14 Sep 2021 16:12:14 +0300
+Subject: [PATCH] trace-cmd library: Fix version string memory leak
+
+The version string is allocated when a VERSION option is processed, but
+is never freed. Free it on input handler close.
+
+Link: https://lore.kernel.org/linux-trace-devel/20210914131232.3964615-4-tz.stoyanov@gmail.com
+
+Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
+Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
+---
+ lib/trace-cmd/trace-input.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
+index 0dbcdbdc..9253bc37 100644
+--- a/lib/trace-cmd/trace-input.c
++++ b/lib/trace-cmd/trace-input.c
+@@ -3518,6 +3518,7 @@ void tracecmd_close(struct tracecmd_input *handle)
+ 	free(handle->cpu_data);
+ 	free(handle->uname);
+ 	free(handle->trace_clock);
++	free(handle->version);
+ 	close(handle->fd);
+ 
+ 	tracecmd_free_hooks(handle->hooks);
+@@ -3959,6 +3960,7 @@ tracecmd_buffer_instance_handle(struct tracecmd_input *handle, int indx)
+ 	new_handle->cpu_data = NULL;
+ 	new_handle->nr_buffers = 0;
+ 	new_handle->buffers = NULL;
++	new_handle->version = NULL;
+ 	new_handle->ref = 1;
+ 	if (handle->trace_clock) {
+ 		new_handle->trace_clock = strdup(handle->trace_clock);
+-- 
+2.33.0
+

trace-cmd.spec

@@ -1,6 +1,6 @@
 Name:                trace-cmd
 Version:             2.9.2
-Release:             4
+Release:             5
 Summary:             A front-end for Ftrace
 License:             GPLv2 and LGPLv2
 URL:                 http://git.kernel.org/?p=linux/kernel/git/rostedt/trace-cmd.git;a=summary
@@ -8,6 +8,7 @@ Source0:             https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/tra
 Source1:             kernelshark.desktop
 
 Patch0001:           backport-trace-cmd-report-Fix-typos-in-error-messages.patch 
+Patch0002:           backport-trace-cmd-library-Fix-version-string-memory-leak.patch
 
 BuildRequires:       gcc xmlto asciidoc mlocate libxml2-devel chrpath
 BuildRequires:       gtk2-devel glib2-devel desktop-file-utils libtraceevent-devel
@@ -67,6 +68,9 @@ echo "%{_bindir}/%{name}" > $RPM_BUILD_ROOT/etc/ld.so.conf.d/%{name}-%{_arch}.co
 %{_mandir}/man5/*
 
 %changelog
+* Fri Jan 06 2023 Bolehu <heyaohua@xfusion.com> - 2.9.2-5
+- trace-cmd library: Fix version string memory leak
+
 * Fri Jan 06 2023 Bolehu <heyaohua@xfusion.com> - 2.9.2-4
 - trace-cmd report: Fix typos in error messages