r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0)
ioctl$TIOCSTI(r0, 0x5412, &(0x7f00000000c0))
readv(r0, &(0x7f0000001b80)=[{&(0x7f0000000100)=""/40, 0x28}], 0x1)