From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Sat, 26 Nov 2022 00:57:16 +0000 (+0900)
Subject: sd-netlink: fix segfault
X-Git-Tag: v253-rc1~431^2~7
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=766417bd763db913efdd9c48442b1094c23d7042;p=thirdparty%2Fsystemd.git

sd-netlink: fix segfault
---

diff --git a/src/libsystemd/sd-netlink/sd-netlink.c b/src/libsystemd/sd-netlink/sd-netlink.c
index 1202fe10a55..ec1035fdd10 100644
--- a/src/libsystemd/sd-netlink/sd-netlink.c
+++ b/src/libsystemd/sd-netlink/sd-netlink.c
@@ -593,7 +593,8 @@ int sd_netlink_read(
                                 return r;
 
                         if (type == NLMSG_DONE) {
-                                *ret = NULL;
+                                if (ret)
+                                        *ret = NULL;
                                 return 0;
                         }