From b9960b09acad929a98f745aa3d1d96fe70cafa1e Mon Sep 17 00:00:00 2001
From: Michael Tuexen <tuexen@fh-muenster.de>
Date: Thu, 4 Oct 2018 16:53:31 +0200
Subject: [PATCH] Avoid a NULL pointer dereference.
---
gtests/net/packetdrill/packet_socket_pcap.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gtests/net/packetdrill/packet_socket_pcap.c b/gtests/net/packetdrill/packet_socket_pcap.c
index c349c700..57eb63df 100644
--- a/gtests/net/packetdrill/packet_socket_pcap.c
+++ b/gtests/net/packetdrill/packet_socket_pcap.c
@@ -126,7 +126,7 @@ void packet_socket_set_filter(struct packet_socket *psock,
const struct ether_addr *client_ether_addr,
const struct ip_address *client_live_ip)
{
- const u8 *client_ether = client_ether_addr->ether_addr_octet;
+ const u8 *client_ether;
struct bpf_program bpf_code;
char *filter_str = NULL;
char client_live_ip_string[ADDR_STR_LEN];
@@ -134,6 +134,7 @@ void packet_socket_set_filter(struct packet_socket *psock,
ip_to_string(client_live_ip, client_live_ip_string);
if (client_ether_addr != NULL)
+ client_ether = client_ether_addr->ether_addr_octet;
asprintf(&filter_str,
"ether src %02x:%02x:%02x:%02x:%02x:%02x and %s src %s",
client_ether[0],
--
GitLab