static loff_t gfs2_llseek(struct file *file, loff_t offset, int whence)
{
	struct gfs2_inode *ip = GFS2_I(file->f_mapping->host);
	struct gfs2_holder i_gh;
	loff_t error;

	switch (whence) {
	case SEEK_END: /* These reference inode->i_size */
	case SEEK_DATA:
	case SEEK_HOLE:
		error = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, LM_FLAG_ANY,
					   &i_gh);
		if (!error) {
			error = generic_file_llseek(file, offset, whence);
			gfs2_glock_dq_uninit(&i_gh);
		}
		break;
	case SEEK_CUR:
	case SEEK_SET:
		error = generic_file_llseek(file, offset, whence);
		break;
	default:
		error = -EINVAL;
	}

	return error;
}

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