r0 = socket$inet6_tcp(0xa, 0x1, 0x0)
ioctl$sock_inet6_SIOCDELRT(r0, 0x890c, &(0x7f00000000c0)={@private0, @empty, @rand_addr=' \x01\x00', 0x0, 0x577, 0x0, 0x0, 0x0, 0x1000080})