From: Tobias Brunner <tobias@strongswan.org>
Date: Fri, 25 Jun 2021 11:51:44 +0000 (+0200)
Subject: kernel-netlink: Fix theoretical memory leak when parsing routes
X-Git-Tag: 5.9.3~3
X-Git-Url: http://git.ipfire.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=06e11b481b81d131d5e755d4adf287079d8753bd;p=thirdparty%2Fstrongswan.git

kernel-netlink: Fix theoretical memory leak when parsing routes

This currently can't happen as the kernel always puts RTA_TABLE as first
attribute in RTM_NEWROUTE messages.
---

diff --git a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
index 278ea647b7..a25b7840c0 100644
--- a/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
+++ b/src/libcharon/plugins/kernel_netlink/kernel_netlink_net.c
@@ -1372,6 +1372,7 @@ static void process_route(private_kernel_netlink_net_t *this,
 				if (RTA_PAYLOAD(rta) == sizeof(uint32_t) &&
 					this->routing_table == *(uint32_t*)RTA_DATA(rta))
 				{
+					DESTROY_IF(host);
 					return;
 				}
 				break;