chiark / gitweb /
log: Eliminate potential out-of-control recursion
[secnet.git] / site.c
diff --git a/site.c b/site.c
index 624752cec98bcd46f8dbc1ed1c01d313091f59b6..0cd364b8135e963c7b923a684836baec2ccc1294 100644 (file)
--- a/site.c
+++ b/site.c
@@ -1121,6 +1121,9 @@ static bool_t site_incoming(void *sst, struct buffer_if *buf,
                            const struct comm_addr *source)
 {
     struct site *st=sst;
+
+    if (buf->size < 12) return False;
+
     uint32_t dest=ntohl(*(uint32_t *)buf->start);
 
     if (dest==0) {