zebra: string null termination (Coverity 1465494)

Signed-off-by: F. Aragon <paco@voltanet.io>

diff --git a/zebra/zebra_netns_notify.c b/zebra/zebra_netns_notify.c
index 30f850597c65c0b848ceddb96115bf4a4a37a71a..bb6a5652115179086c53a3fb4e92e5006f243c85 100644 (file)
--- a/zebra/zebra_netns_notify.c
+++ b/zebra/zebra_netns_notify.c
@@ -212,6 +212,11 @@ static int zebra_ns_notify_read(struct thread *t)
                        continue;
                if (event->mask & IN_DELETE)
                        return zebra_ns_delete(event->name);
+               if (&event->name[event->len] >= &buf[sizeof(buf)]) {
+                       zlog_err("NS notify read: buffer underflow");
+                       break;
+               }
+               event->name[event->len] = 0;
                netnspath = ns_netns_pathname(NULL, event->name);
                if (!netnspath)
                        continue;