On 1/9/20 2:48 AM, Lingpeng Chen wrote:
Right now in tcp_bpf_recvmsg, sock read data first from sk_receive_queue
if not empty than psock->ingress_msg otherwise. If a FIN packet arrives
and there's also some data in psock->ingress_msg, the data in
psock->ingress_msg will be purged. It is always happen when request to a
HTTP1.0 server like python SimpleHTTPServer since the server send FIN
packet after data is sent out.
Fixes: 604326b41a6fb ("bpf, sockmap: convert to generic sk_msg interface")
Reported-by: Arika Chen <eaglesora@xxxxxxxxx>
Suggested-by: Arika Chen <eaglesora@xxxxxxxxx>
Signed-off-by: Lingpeng Chen <forrest0579@xxxxxxxxx>
Signed-off-by: John Fastabend <john.fastabend@xxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v4.20+
Acked-by: Song Liu <songliubraving@xxxxxx>
Applied to bpf, thanks!
