From: Maria Matejka <mq@ucw.cz>
Date: Thu, 22 Feb 2024 11:00:05 +0000 (+0100)
Subject: Undefined behavior fix
X-Git-Tag: v3.0.0~246^2~17
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3a2e423d3e1117ac8fb9f83d2a2bcfe99e8bf016;p=thirdparty%2Fbird.git

Undefined behavior fix
---

diff --git a/nest/rt-dev.c b/nest/rt-dev.c
index c728b5f33..8a8d6d6de 100644
--- a/nest/rt-dev.c
+++ b/nest/rt-dev.c
@@ -83,12 +83,11 @@ dev_ifa_notify(struct proto *P, uint flags, struct ifa *ad)
       ea_list *ea = NULL;
       struct nexthop_adata nhad = {
 	.nh = { .iface = ad->iface, },
-	.ad = { .length = (void *) NEXTHOP_NEXT(&nhad.nh) - (void *) nhad.ad.data, },
       };
 
       ea_set_attr_u32(&ea, &ea_gen_preference, 0, c->preference);
       ea_set_attr_u32(&ea, &ea_gen_source, 0, RTS_DEVICE);
-      ea_set_attr_data(&ea, &ea_gen_nexthop, 0, nhad.ad.data, nhad.ad.length);
+      ea_set_attr_data(&ea, &ea_gen_nexthop, 0, nhad.ad.data, (void *) NEXTHOP_NEXT(&nhad.nh) - (void *) nhad.ad.data);
 
       rte e0 = {
 	.attrs = ea,