static int udf_sync_fs(struct super_block *sb, int wait)
{
	struct udf_sb_info *sbi = UDF_SB(sb);

	mutex_lock(&sbi->s_alloc_mutex);
	if (sbi->s_lvid_dirty) {
		/*
		 * Blockdevice will be synced later so we don't have to submit
		 * the buffer for IO
		 */
		mark_buffer_dirty(sbi->s_lvid_bh);
		sb->s_dirt = 0;
		sbi->s_lvid_dirty = 0;
	}
	mutex_unlock(&sbi->s_alloc_mutex);

	return 0;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.