r0 = syz_open_dev$tty20(0xc, 0x4, 0x1) stat(&(0x7f00000000c0)='.\x00', &(0x7f0000001c00)={0x0, 0x0, 0x0, 0x0, 0x0}) setresuid(0xffffffffffffffff, r1, 0x0) r2 = dup(r0) ioctl$TIOCSETD(r2, 0x5423, &(0x7f0000000000)=0x19)