r0 = syz_open_dev$loop(&(0x7f0000000000), 0x4000, 0x1)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x47e2, 0x0)
ioctl$LOOP_SET_FD(r0, 0x4c00, r1)