diff options
| -rw-r--r-- | hw/net/rtl8139.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/net/rtl8139.c b/hw/net/rtl8139.c index 6859d7684e..fa0193403e 100644 --- a/hw/net/rtl8139.c +++ b/hw/net/rtl8139.c @@ -2210,6 +2210,11 @@ static int rtl8139_cplus_transmit_one(RTL8139State *s) if ((txdw0 & CP_TX_LGSEN) && ip_protocol == IP_PROTO_TCP) { + /* Large enough for the TCP header? */ + if (ip_data_len < sizeof(tcp_header)) { + goto skip_offload; + } + int large_send_mss = (txdw0 >> 16) & CP_TC_LGSEN_MSS_MASK; DPRINTF("+++ C+ mode offloaded task TSO MTU=%d IP data %d " |