r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000140), 0x0, 0x0)
ioctl$TIOCPKT(r0, 0x5420, &(0x7f0000000000)=0x1f)
ioctl$TCSETSW(r0, 0x5404, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, 0x0, "5b1b9ca02e3538d0f1ccdd3a8f1f0e69831a50"})