diff options
Diffstat (limited to 'net/tipc/link.c')
| -rw-r--r-- | net/tipc/link.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/tipc/link.c b/net/tipc/link.c index 4ed650ce6e61..fb886b525d95 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1516,6 +1516,9 @@ bool tipc_link_validate_msg(struct tipc_link *l, struct tipc_msg *hdr) return false; if (session != curr_session) return false; + /* Extra sanity check */ + if (!link_is_up(l) && msg_ack(hdr)) + return false; if (!(l->peer_caps & TIPC_LINK_PROTO_SEQNO)) return true; /* Accept only STATE with new sequence number */ |