diff options
| -rw-r--r-- | babeld/message.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/babeld/message.c b/babeld/message.c index 5a33d5c288..d7213f5f4f 100644 --- a/babeld/message.c +++ b/babeld/message.c @@ -552,6 +552,13 @@ parse_packet(const unsigned char *from, struct interface *ifp, } else if(type == MESSAGE_NH) { unsigned char nh[16]; int rc; + if(message[2] != 1 && message[2] != 3) { + debugf(BABEL_DEBUG_COMMON,"Received NH with incorrect AE %d.", + message[2]); + have_v4_nh = 0; + have_v6_nh = 0; + goto fail; + } rc = network_address(message[2], message + 4, len - 2, nh); if(rc <= 0) { have_v4_nh = 0; |