From: Felix Fietkau <nbd@nbd.name>
Date: Tue, 23 Aug 2022 20:35:54 +0000 (+0200)
Subject: pex: fix null pointer check
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=547be90c5a6cc229e3e5b4fa8221b1a6ab9638e7;p=project%2Funetd.git

pex: fix null pointer check

check for local_host null pointer before dereferencing it

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---

diff --git a/pex.c b/pex.c
index 38d314d..0e66d24 100644
--- a/pex.c
+++ b/pex.c
@@ -462,15 +462,17 @@ network_pex_fd_cb(struct uloop_fd *fd, unsigned int events)
 
 int network_pex_open(struct network *net)
 {
-	struct network_peer *local = &net->net_config.local_host->peer;
+	struct network_host *local_host = net->net_config.local_host;
+	struct network_peer *local;
 	struct network_pex *pex = &net->pex;
 	struct sockaddr_in6 sin6 = {};
 	int yes = 1;
 	int fd;
 
-	if (!local || !net->net_config.pex_port)
+	if (!local_host || !net->net_config.pex_port)
 		return 0;
 
+	local = &local_host->peer;
 	fd = socket(PF_INET6, SOCK_DGRAM, IPPROTO_UDP);
 	if (fd < 0)
 		return -1;