r0 = epoll_create1(0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000001180), 0x0, 0x0)
epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r1, &(0x7f0000001240))
epoll_ctl$EPOLL_CTL_MOD(r0, 0x3, r1, &(0x7f0000001280)={0x20000000})