Re: [syzbot] [mm?] [f2fs?] [exfat?] memory leak in __kfree_rcu_sheaf

[David Timber]

#syz testdiff --git a/fs/exfat/super.c b/fs/exfat/super.c
index 95d87e2d7717..df10d9a79a29 100644
--- a/fs/exfat/super.c
+++ b/fs/exfat/super.c
@@ -656,6 +656,7 @@ static int __exfat_fill_super(struct super_block *sb,
 free_alloc_bitmap:
 	exfat_free_bitmap(sbi);
 free_bh:
+	exfat_free_upcase_table(sbi);
 	brelse(sbi->boot_bh);
 	return ret;
 }
@@ -752,6 +753,7 @@ static int exfat_get_tree(struct fs_context *fc)
 
 static void exfat_free_sbi(struct exfat_sb_info *sbi)
 {
+	exfat_free_upcase_table(sbi);
 	exfat_free_iocharset(sbi);
 	kfree(sbi);
 }
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index c4c225e09dc4..fd2499fe156b 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -5388,7 +5388,10 @@ static int f2fs_fill_super(struct super_block *sb, struct fs_context *fc)
 
 static int f2fs_get_tree(struct fs_context *fc)
 {
-	return get_tree_bdev(fc, f2fs_fill_super);
+	if (true)
+		return -ENOMEM;
+	else
+		return get_tree_bdev(fc, f2fs_fill_super);
 }
 
 static int f2fs_reconfigure(struct fs_context *fc)