diff options
| -rw-r--r-- | net/mptcp/subflow.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/mptcp/subflow.c b/net/mptcp/subflow.c index 31dcb550316f..30ffb00661bb 100644 --- a/net/mptcp/subflow.c +++ b/net/mptcp/subflow.c @@ -1006,7 +1006,9 @@ static enum mapping_status get_mapping_status(struct sock *ssk, data_len = mpext->data_len; if (data_len == 0) { + pr_debug("infinite mapping received"); MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_INFINITEMAPRX); + subflow->map_data_len = 0; return MAPPING_INVALID; } @@ -1220,7 +1222,7 @@ fallback: return true; } - if (subflow->mp_join || subflow->fully_established) { + if ((subflow->mp_join || subflow->fully_established) && subflow->map_data_len) { /* fatal protocol error, close the socket. * subflow_error_report() will introduce the appropriate barriers */ |