Files
linux/net/core
Eric Dumazet 4f2e4ad56a net: mangle zero checksum in skb_checksum_help()
Sending zero checksum is ok for TCP, but not for UDP.

UDPv6 receiver should by default drop a frame with a 0 checksum,
and UDPv4 would not verify the checksum and might accept a corrupted
packet.

Simply replace such checksum by 0xffff, regardless of transport.

This error was caught on SIT tunnels, but seems generic.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Acked-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-31 15:29:11 -04:00
..
2016-02-16 20:21:48 -05:00
2016-06-03 19:37:21 -04:00
2016-09-23 08:40:28 -04:00
2016-08-30 22:27:18 -07:00