loop2: detected capacity change from 0 to 1024
============================================
WARNING: possible recursive locking detected
6.8.0-rc6-syzkaller-00238-g5ad3cb0ed525 #0 Not tainted
--------------------------------------------
syz-executor.2/12029 is trying to acquire lock:
ffff8880644ee0b0 (&tree->tree_lock/1){+.+.}-{3:3}, at: hfsplus_find_init+0x16e/0x200 fs/hfsplus/bfind.c:33

but task is already holding lock:
ffff8880644ee0b0 (&tree->tree_lock/1){+.+.}-{3:3}, at: hfsplus_find_init+0x16e/0x200 fs/hfsplus/bfind.c:33

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

       CPU0
       ----
  lock(&tree->tree_lock/1);
  lock(&tree->tree_lock/1);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

6 locks held by syz-executor.2/12029:
 #0: ffff88802ab7fcc8 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xeb/0x180 fs/file.c:1191
 #1: ffff88801d934420 (sb_writers#16){.+.+}-{0:0}, at: ksys_write+0x12f/0x260 fs/read_write.c:643
 #2: ffff88805a750300 (&sb->s_type->i_mutex_key#27){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:804 [inline]
 #2: ffff88805a750300 (&sb->s_type->i_mutex_key#27){+.+.}-{3:3}, at: generic_file_write_iter+0x92/0x350 mm/filemap.c:4048
 #3: ffff88805a750108 (&hip->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1c1/0x1090 fs/hfsplus/extents.c:457
 #4: ffff8880644ee0b0 (&tree->tree_lock/1){+.+.}-{3:3}, at: hfsplus_find_init+0x16e/0x200 fs/hfsplus/bfind.c:33
 #5: ffff88805a7558c8 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x1c1/0x1090 fs/hfsplus/extents.c:457

stack backtrace:
CPU: 2 PID: 12029 Comm: syz-executor.2 Not tainted 6.8.0-rc6-syzkaller-00238-g5ad3cb0ed525 #0
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 lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
 check_deadlock kernel/locking/lockdep.c:3062 [inline]
 validate_chain kernel/locking/lockdep.c:3856 [inline]
 __lock_acquire+0x2111/0x3b40 kernel/locking/lockdep.c:5137
 lock_acquire kernel/locking/lockdep.c:5754 [inline]
 lock_acquire+0x1ae/0x520 kernel/locking/lockdep.c:5719
 __mutex_lock_common kernel/locking/mutex.c:608 [inline]
 __mutex_lock+0x175/0x9d0 kernel/locking/mutex.c:752
 hfsplus_find_init+0x16e/0x200 fs/hfsplus/bfind.c:33
 hfsplus_ext_read_extent+0x18f/0x250 fs/hfsplus/extents.c:216
 hfsplus_file_extend+0x699/0x1090 fs/hfsplus/extents.c:461
 hfsplus_bmap_reserve+0x31c/0x410 fs/hfsplus/btree.c:358
 __hfsplus_ext_write_extent+0x474/0x5e0 fs/hfsplus/extents.c:104
 __hfsplus_ext_cache_extent+0x98/0x9d0 fs/hfsplus/extents.c:186
 hfsplus_ext_read_extent+0x200/0x250 fs/hfsplus/extents.c:218
 hfsplus_file_extend+0x699/0x1090 fs/hfsplus/extents.c:461
 hfsplus_get_block+0x1ae/0x9e0 fs/hfsplus/extents.c:245
 get_more_blocks fs/direct-io.c:647 [inline]
 do_direct_IO fs/direct-io.c:935 [inline]
 __blockdev_direct_IO+0x2453/0x3cc0 fs/direct-io.c:1248
 blockdev_direct_IO include/linux/fs.h:3117 [inline]
 hfsplus_direct_IO+0x10c/0x2d0 fs/hfsplus/inode.c:130
 generic_file_direct_write+0x139/0x370 mm/filemap.c:3855
 __generic_file_write_iter+0x121/0x240 mm/filemap.c:4011
 generic_file_write_iter+0xe7/0x350 mm/filemap.c:4051
 call_write_iter include/linux/fs.h:2087 [inline]
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0x6de/0x1110 fs/read_write.c:590
 ksys_write+0x12f/0x260 fs/read_write.c:643
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xd5/0x270 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f04f487dda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f04f3bff0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f04f49abf80 RCX: 00007f04f487dda9
RDX: 000000000003fe00 RSI: 0000000020000200 RDI: 0000000000000005
RBP: 00007f04f48ca47a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f04f49abf80 R15: 00007ffee2db15a8
 </TASK>