/dev/loop6: Can't open blockdev
hfsplus: invalid extended attribute record
============================================
WARNING: possible recursive locking detected
syzkaller #0 Not tainted
--------------------------------------------
syz.6.216/7177 is trying to acquire lock:
ffff8881718e4008 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_get_block+0x39e/0x1670

but task is already holding lock:
ffff88811619ab08 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x2b3/0xc30

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&HFSPLUS_I(inode)->extents_lock);
  lock(&HFSPLUS_I(inode)->extents_lock);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

6 locks held by syz.6.216/7177:
 #0: ffff8881ba098420 (sb_writers#15){.+.+}-{0:0}, at: mnt_want_write+0x41/0x90
 #1: ffff8881718e33f8 (&type->i_mutex_dir_key#10/1){+.+.}-{4:4}, at: do_unlinkat+0x1c3/0x590
 #2: ffff88811619acf8 (&sb->s_type->i_mutex_key#26){++++}-{4:4}, at: vfs_unlink+0xef/0x640
 #3: ffff8881a8fb7998 (&sbi->vh_mutex){+.+.}-{4:4}, at: hfsplus_unlink+0x178/0x760
 #4: ffff88811619ab08 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_truncate+0x2b3/0xc30
 #5: ffff8881a8fb78f8 (&sbi->alloc_mutex){+.+.}-{4:4}, at: hfsplus_block_free+0xc7/0x630

stack backtrace:
CPU: 1 UID: 0 PID: 7177 Comm: syz.6.216 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 print_deadlock_bug+0x279/0x290
 __lock_acquire+0x253f/0x2cf0
 lock_acquire+0x106/0x330
 __mutex_lock+0x19f/0x1300
 hfsplus_get_block+0x39e/0x1670
 block_read_full_folio+0x29f/0x830
 filemap_read_folio+0x137/0x3b0
 do_read_cache_folio+0x358/0x590
 read_cache_page+0x5d/0x170
 hfsplus_block_free+0x134/0x630
 hfsplus_free_extents+0x121/0xa50
 hfsplus_file_truncate+0x762/0xc30
 hfsplus_delete_inode+0x180/0x230
 hfsplus_unlink+0x4fa/0x760
 vfs_unlink+0x380/0x640
 do_unlinkat+0x2e3/0x590
 __x64_sys_unlink+0x47/0x50
 do_syscall_64+0xe2/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f869819acb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8699126028 EFLAGS: 00000246 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 00007f8698415fa0 RCX: 00007f869819acb9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000099c0
RBP: 00007f8698208bf7 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8698416038 R14: 00007f8698415fa0 R15: 00007ffcfcbc55d8
 </TASK>
hfsplus: unable to mark blocks free: error -5
hfsplus: can't free extent: start 134, count 1
