diff options
Diffstat (limited to 'sys/netinet/tcp_input.c')
| -rw-r--r-- | sys/netinet/tcp_input.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index 6255042a55b6..2ed59ce94acc 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -256,6 +256,7 @@ tcp_reass(tp, th, tlenp, m) tcp_reass_overflows++; tcpstat.tcps_rcvmemdrop++; m_freem(m); + *tlenp = 0; return (0); } @@ -267,6 +268,7 @@ tcp_reass(tp, th, tlenp, m) if (te == NULL) { tcpstat.tcps_rcvmemdrop++; m_freem(m); + *tlenp = 0; return (0); } tp->t_segqlen++; @@ -2295,7 +2297,7 @@ dodata: /* XXX */ thflags = tcp_reass(tp, th, &tlen, m); tp->t_flags |= TF_ACKNOW; } - if (tp->sack_enable) + if (tlen > 0 && tp->sack_enable) tcp_update_sack_list(tp, th->th_seq, th->th_seq + tlen); /* * Note the amount of data that peer has sent into |