Add vhost-path safety check when adding a socket pair

If the vhost-path parameter is not passed while adding a socket pair, return immediately, otherwise this may causes a null pointer access fault. Signed-off-by: Jin Liu <[email protected]> Signed-off-by: Heinrich Kuhn <[email protected]>
Netronome · Nov 23, 2021 · b5cca74 · b5cca74
1 parent d622f01
commit b5cca74
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/virtio_vhostuser.c b/virtio_vhostuser.c
@@ -729,6 +729,11 @@ int virtio_add_sock_dev_pair(const char *vhost_path,
 	dpdk_port_t port_id;
 #endif
 
+	if (!vhost_path) {
+		log_error("vhost-path has to be specified when adding a socket pair");
+		return -1;
+	}
+
 	dev = num_slaves == 1 ? slave_dbdfs[0] : name;
 #if RTE_VERSION >= RTE_VERSION_NUM(16,7,0,0)
 	if (rte_eth_dev_get_port_by_name(dev, &port_id) == 0) {