r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000002c0), 0x0, 0x0) ioctl$TIOCPKT(r0, 0x5420, &(0x7f0000000000)=0x1f) read(r0, 0x0, 0x40004) ioctl$TCSETSF2(r0, 0x402c542d, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, 0x0, "bb4c8fe15c88aec09401aea40e854cc8c83eec"})