r0 = openat$ttyS3(0xffffffffffffff9c, &(0x7f0000000480), 0x0, 0x0)
r1 = socket$inet_udp(0x2, 0x2, 0x0)
poll(&(0x7f0000000000)=[{r0}, {r0}, {r0}, {r1}, {r0}, {r0}], 0x6, 0x6)