static int __floppy_read_block_0(struct block_device *bdev, int drive)
{
	struct bio bio;
	struct bio_vec bio_vec;
	struct page *page;
	struct rb0_cbdata cbdata;
	size_t size;

	page = alloc_page(GFP_NOIO);
	if (!page) {
		process_fd_request();
		return -ENOMEM;
	}

	size = bdev->bd_block_size;
	if (!size)
		size = 1024;

	cbdata.drive = drive;

	bio_init(&bio);
	bio.bi_io_vec = &bio_vec;
	bio_vec.bv_page = page;
	bio_vec.bv_len = size;
	bio_vec.bv_offset = 0;
	bio.bi_vcnt = 1;
	bio.bi_iter.bi_size = size;
	bio.bi_bdev = bdev;
	bio.bi_iter.bi_sector = 0;
	bio.bi_flags = (1 << BIO_QUIET);
	bio.bi_private = &cbdata;
	bio.bi_end_io = floppy_rb0_cb;

	submit_bio(READ, &bio);
	process_fd_request();

	init_completion(&cbdata.complete);
	wait_for_completion(&cbdata.complete);

	__free_page(page);

	return 0;
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.