static void udf_load_logicalvolint(struct super_block *sb, struct kernel_extent_ad loc)
{
	struct buffer_head *bh = NULL;
	uint16_t ident;
	struct udf_sb_info *sbi = UDF_SB(sb);
	struct logicalVolIntegrityDesc *lvid;

	while (loc.extLength > 0 &&
	       (bh = udf_read_tagged(sb, loc.extLocation,
				     loc.extLocation, &ident)) &&
	       ident == TAG_IDENT_LVID) {
		sbi->s_lvid_bh = bh;
		lvid = (struct logicalVolIntegrityDesc *)bh->b_data;

		if (lvid->nextIntegrityExt.extLength)
			udf_load_logicalvolint(sb,
				leea_to_cpu(lvid->nextIntegrityExt));

		if (sbi->s_lvid_bh != bh)
			brelse(bh);
		loc.extLength -= sb->s_blocksize;
		loc.extLocation++;
	}
	if (sbi->s_lvid_bh != bh)
		brelse(bh);
}

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.