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Message-ID: <20251118192209.70315-1-mehdi.benhadjkhelifa@gmail.com>
Date: Tue, 18 Nov 2025 20:21:27 +0100
From: Mehdi Ben Hadj Khelifa <mehdi.benhadjkhelifa@...il.com>
To: syzbot+ad45f827c88778ff7df6@...kaller.appspotmail.com
Cc: frank.li@...o.com,
	glaubitz@...sik.fu-berlin.de,
	linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	slava@...eyko.com,
	syzkaller-bugs@...glegroups.com,
	Mehdi Ben Hadj Khelifa <mehdi.benhadjkhelifa@...il.com>
Subject: 

#syz test

diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index 47f50fa555a4..06e1c25e47dc 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -49,8 +49,6 @@ static void hfs_put_super(struct super_block *sb)
 {
 	cancel_delayed_work_sync(&HFS_SB(sb)->mdb_work);
 	hfs_mdb_close(sb);
-	/* release the MDB's resources */
-	hfs_mdb_put(sb);
 }
 
 static void flush_mdb(struct work_struct *work)
@@ -383,7 +381,6 @@ static int hfs_fill_super(struct super_block *sb, struct fs_context *fc)
 bail_no_root:
 	pr_err("get root inode failed\n");
 bail:
-	hfs_mdb_put(sb);
 	return res;
 }
 
@@ -431,10 +428,21 @@ static int hfs_init_fs_context(struct fs_context *fc)
 	return 0;
 }
 
+static void hfs_kill_sb(struct super_block *sb)
+{
+	generic_shutdown_super(sb);
+	hfs_mdb_put(sb);
+	if (sb->s_bdev) {
+		sync_blockdev(sb->s_bdev);
+		bdev_fput(sb->s_bdev_file);
+	}
+
+}
+
 static struct file_system_type hfs_fs_type = {
 	.owner		= THIS_MODULE,
 	.name		= "hfs",
-	.kill_sb	= kill_block_super,
+	.kill_sb	= hfs_kill_sb,
 	.fs_flags	= FS_REQUIRES_DEV,
 	.init_fs_context = hfs_init_fs_context,
 };
-- 
2.52.0