!48 add check after malloc allocation

From: @anonymous_z 
Reviewed-by: @t_feng 
Signed-off-by: @t_feng

backport-Add-check-after-malloc-allocation.patch

@@ -0,0 +1,31 @@
+From 466bd9dd8b8836af34f29976a5b0b83950bbe8ed Mon Sep 17 00:00:00 2001
+From: Li kunyu <kunyu@nfschina.com>
+Date: Mon, 19 Dec 2022 15:20:42 +0800
+Subject: [PATCH] example_plugin: Add check after malloc allocation
+
+Reference:https://github.com/rpm-software-management/libdnf/commit/466bd9dd8b8836af34f29976a5b0b83950bbe8ed
+Conflict:NA
+
+---
+ plugins/example_plugin.c | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/plugins/example_plugin.c b/plugins/example_plugin.c
+index 3f1b119f31..a12439bffd 100644
+--- a/plugins/example_plugin.c
++++ b/plugins/example_plugin.c
+@@ -78,9 +78,11 @@ PluginHandle * pluginInitHandle(int version, PluginMode mode, DnfPluginInitData
+             break;
+         }
+         handle = malloc(sizeof(*handle));
+-        handle->mode = mode;
+-        handle->context = pluginGetContext(initData);
+-        handle->outStream = outStream;
++	if (handle) {
++            handle->mode = mode;
++            handle->context = pluginGetContext(initData);
++            handle->outStream = outStream;
++	}
+     } while (0);
+ 
+     fprintf(outStream, "%s: %s: exit =========================\n", info.name, __func__);

libdnf.spec

@@ -18,7 +18,7 @@
 
 Name:                      libdnf
 Version:                   0.69.0
-Release:                   3
+Release:                   4
 Summary:                   Library providing simplified C and Python API to libsolv
 License:                   LGPLv2+
 URL:                       https://github.com/rpm-software-management/libdnf
@@ -44,6 +44,7 @@ Patch6000:                 backport-query-py-ensure-reldep-is-from-the-same-sack
 %ifarch loongarch64
 Patch6001:                 0001-libdnf-0.65.0-add-loongarch-support.patch 
 %endif
+Patch6002:                 backport-Add-check-after-malloc-allocation.patch
 
 %description
 A Library providing simplified C and Python API to libsolv.
@@ -123,6 +124,9 @@ popd
 %{python3_sitearch}/hawkey/
 
 %changelog
+* Fri Apr 21 2023 zhangrui <zhangrui182@huawei.com> - 0.69.0-4
+- DESC:add check after malloc allocation
+
 * Thu Jan 5 2023 zhangrui <zhangrui182@huawei.com> - 0.69.0-3
 - DESC:add loongarch