Fix UBSAN warnings about conversions and overflows.

[tinc] / src / route.c

diff --git a/src/route.c b/src/route.c
index 559cf2f..69d0ba7 100644 (file)
--- a/src/route.c
+++ b/src/route.c
@@ -485,7 +485,7 @@ static void clamp_mss(const node_t *source, const node_t *via, vpn_packet_t *pac
                csum += csum >> 16;
                csum ^= 0xffff;
                DATA(packet)[start + 16] = csum >> 8;
-               DATA(packet)[start + 17] = csum;
+               DATA(packet)[start + 17] = csum & 0xff;
                break;
        }
 }
@@ -494,7 +494,7 @@ static void age_subnets(void *data) {
        (void)data;
        bool left = false;
 
-       for splay_each(subnet_t, s, myself->subnet_tree) {
+       for splay_each(subnet_t, s, &myself->subnet_tree) {
                if(s->expires && s->expires < now.tv_sec) {
                        if(debug_level >= DEBUG_TRAFFIC) {
                                char netstr[MAXNETSTR];