diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 94b432d28bcc..1ec8d8f1afc9 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -796,6 +796,17 @@ static int get_checkpoint_version(struct f2fs_sb_info *sbi, block_t cp_addr,
 		return -EINVAL;
 	}
 
+	if (__is_set_ckpt_flags(*cp_block, CP_LARGE_NAT_BITMAP_FLAG)) {
+		if (crc_offset != CP_MIN_CHKSUM_OFFSET) {
+			f2fs_put_page(*cp_page, 1);
+			f2fs_msg(sbi->sb, KERN_WARNING,
+				"layout of large_nat_bitmap is deprecated, "
+				"run fsck to repair, chksum_offset: %zu",
+				crc_offset);
+			return -EINVAL;
+		}
+	}
+
 	crc = f2fs_checkpoint_chksum(sbi, *cp_block);
 	if (crc != cur_cp_crc(*cp_block)) {
 		f2fs_put_page(*cp_page, 1);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index ca4fe42d9e48..a0b75a483a67 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1976,7 +1976,11 @@ static inline void *__bitmap_ptr(struct f2fs_sb_info *sbi, int flag)
 	if (is_set_ckpt_flags(sbi, CP_LARGE_NAT_BITMAP_FLAG)) {
 		offset = (flag == SIT_BITMAP) ?
 			le32_to_cpu(ckpt->nat_ver_bitmap_bytesize) : 0;
-		return &ckpt->sit_nat_version_bitmap + offset;
+		/*
+		 * if large_nat_bitmap feature is enabled, leave checksum
+		 * protection for all nat/sit bitmaps.
+		 */
+		return &ckpt->sit_nat_version_bitmap + offset + sizeof(__le32);
 	}
 
 	if (__cp_payload(sbi) > 0) {