r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
r1 = openat$rfkill(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
dup3(r1, r0, 0x0)
read(r0, 0x0, 0x0)