r0 = syz_open_dev$loop(&(0x7f0000000000), 0x0, 0x2440)
ioctl$LOOP_SET_FD(r0, 0x4c00, 0xffffffffffffffff)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x0)
dup2(0xffffffffffffffff, 0xffffffffffffffff)