r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
stat(&(0x7f0000000080)='.\x00', &(0x7f0000001c00)={0x0, 0x0, 0x0, 0x0, <r1=>0x0})
setresuid(0xffffffffffffffff, r1, 0x0)
ioctl$TIOCVHANGUP(r0, 0x5437, 0x0)