Re: [Patch net] bpf: check NULL for sk_to_full_sk() return value

From: Cong Wang <redacted>
Date: Mon, 17 Jul 2017 11:42:55 -0700

When req->rsk_listener is NULL, sk_to_full_sk() returns
NULL too, so we have to check its return value against
NULL here.

Fixes: 40304b2a1567 ("bpf: BPF support for sock_ops")
Reported-by: David Ahern <redacted>
Tested-by: David Ahern <redacted>
Cc: Lawrence Brakmo <redacted>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Cong Wang <redacted>

Applied, thanks.