r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0) ioctl$TIOCGPKT(r0, 0x40045431, &(0x7f0000000040)) r1 = ioctl$TIOCGPTPEER(r0, 0x5441, 0x0) readv(r1, &(0x7f0000000480)=[{&(0x7f0000000080)=""/215, 0xd7}], 0x1) close_range(r0, 0xffffffffffffffff, 0x0)