r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
setsockopt$inet6_tcp_buf(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
setsockopt$inet6_tcp_buf(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0)
getsockopt$inet6_tcp_int(r0, 0x6, 0x17, &(0x7f00000026c0), &(0x7f0000002700)=0x4)