r0 = openat$cdrom(0xffffffffffffff9c, &(0x7f0000000000), 0x800, 0x0)
ioctl$CDROMSUBCHNL(r0, 0x530b, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @msf, @lba})