diff --git a/fs/exfat/balloc.c b/fs/exfat/balloc.c
index 2d2d510f2372..e6d5b9cb56d6 100644
--- a/fs/exfat/balloc.c
+++ b/fs/exfat/balloc.c
@@ -24,6 +24,25 @@
 #error "BITS_PER_LONG not 32 or 64"
 #endif
 
+bool exfat_test_bitmap(struct super_block *sb, unsigned int clu)
+{
+	int i, b;
+	unsigned int ent_idx;
+	struct exfat_sb_info *sbi = EXFAT_SB(sb);
+
+	if (!is_valid_cluster(sbi, clu))
+		return false;
+
+	ent_idx = CLUSTER_TO_BITMAP_ENT(clu);
+	i = BITMAP_OFFSET_SECTOR_INDEX(sb, ent_idx);
+	b = BITMAP_OFFSET_BIT_IN_SECTOR(sb, ent_idx);
+
+	if (!test_bit_le(b, sbi->vol_amap[i]->b_data))
+		return false;
+
+	return true;
+}
+
 /*
  *  Allocation Bitmap Management Functions
  */
diff --git a/fs/exfat/exfat_fs.h b/fs/exfat/exfat_fs.h
index 38210fb6901c..6a317917506c 100644
--- a/fs/exfat/exfat_fs.h
+++ b/fs/exfat/exfat_fs.h
@@ -450,6 +450,7 @@ int exfat_count_num_clusters(struct super_block *sb,
 		struct exfat_chain *p_chain, unsigned int *ret_count);
 
 /* balloc.c */
+bool exfat_test_bitmap(struct super_block *sb, unsigned int clu);
 int exfat_load_bitmap(struct super_block *sb);
 void exfat_free_bitmap(struct exfat_sb_info *sbi);
 int exfat_set_bitmap(struct inode *inode, unsigned int clu, bool sync);
diff --git a/fs/exfat/super.c b/fs/exfat/super.c
index 7f9592856bf7..ce05dc604e13 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -626,6 +626,12 @@ static int __exfat_fill_super(struct super_block *sb,
 		goto free_bh;
 	}
 
+	if (!exfat_test_bitmap(sb, sbi->root_dir)) {
+		exfat_err(sb, "failed to test root cluster bit");
+		ret = -EIO;
+		goto free_alloc_bitmap;
+	}
+
 	ret = exfat_count_used_clusters(sb, &sbi->used_clusters);
 	if (ret) {
 		exfat_err(sb, "failed to scan clusters");