r0 = syz_open_dev$tty1(0xc, 0x4, 0x1) stat(&(0x7f0000000180)='.\x00', &(0x7f0000001c00)={0x0, 0x0, 0x0, 0x0, 0x0}) setresuid(0xffffffffffffffff, r1, 0x0) ioctl$PIO_UNIMAP(r0, 0x4b4d, &(0x7f0000000040)={0x0, 0x0})