ioctl$FITRIM(0xffffffffffffffff, 0xc0185879, &(0x7f0000000040)={0x0, 0x0, 0x18b})
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'netdevsim0\x00'})
ioctl$TUNSETVNETHDRSZ(0xffffffffffffffff, 0x400454d8, 0x0)
poll(&(0x7f0000000100)=[{r0}, {}], 0x2, 0xae)