config: fix invalid reachabletime in RA message

[project/odhcpd.git] / src / config.c

diff --git a/src/config.c b/src/config.c
index fd334ef..2369372 100644 (file)
--- a/src/config.c
+++ b/src/config.c
@@ -603,9 +603,11 @@ int config_parse_interface(void *data, size_t len, const char *name, bool overwr
                iface->managed = blobmsg_get_u32(c);
 
        if ((c = tb[IFACE_ATTR_RA_REACHABLETIME])) {
-               iface->ra_reachabletime = blobmsg_get_u32(c);
-               if (iface->ra_reachabletime > 3600000)
+               uint32_t ra_reachabletime = blobmsg_get_u32(c);
+               if (ra_reachabletime > 3600000)
                        goto err;
+
+               iface->ra_reachabletime = ra_reachabletime;
        }
 
        if ((c = tb[IFACE_ATTR_RA_RETRANSTIME])) {