diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index 3b0f63e0a253..3c83bda8298e 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -4068,7 +4068,9 @@ cifs_setup_session(const unsigned int xid, struct cifs_ses *ses,
 		ses->ses_status = SES_IN_SETUP;
 
 		/* force iface_list refresh */
+		spin_lock(&ses->iface_lock);
 		ses->iface_last_update = 0;
+		spin_unlock(&ses->iface_lock);
 	}
 	spin_unlock(&ses->ses_lock);