x_tables: ip_tables: osf match: only valid for protocol 6
loop0: detected capacity change from 0 to 1024
hfsplus: found bad thread record in catalog
hfsplus: found bad thread record in catalog
============================================
WARNING: possible recursive locking detected
6.11.0-rc6-syzkaller-00075-gad618736883b #0 Not tainted
--------------------------------------------
syz.0.0/5114 is trying to acquire lock:
ffff8880003b60b0 (&tree->tree_lock/1){+.+.}-{3:3}, at: hfsplus_find_init+0x14a/0x1c0 fs/hfsplus/bfind.c:28

but task is already holding lock:
ffff8880003b60b0 (&tree->tree_lock/1){+.+.}-{3:3}, at: hfsplus_find_init+0x14a/0x1c0 fs/hfsplus/bfind.c:28

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

5 locks held by syz.0.0/5114:
 #0: ffff888000f5a420 (sb_writers#10){.+.+}-{0:0}, at: do_ftruncate+0x294/0x590 fs/open.c:178
 #1: ffff888035446b78 (&sb->s_type->i_mutex_key#19){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:800 [inline]
 #1: ffff888035446b78 (&sb->s_type->i_mutex_key#19){+.+.}-{3:3}, at: do_truncate fs/open.c:63 [inline]
 #1: ffff888035446b78 (&sb->s_type->i_mutex_key#19){+.+.}-{3:3}, at: do_ftruncate+0x457/0x590 fs/open.c:181
 #2: ffff888035446988 (&hip->extents_lock){+.+.}-{3:3}, at: hfsplus_file_truncate+0x30a/0xc70 fs/hfsplus/extents.c:577
 #3: ffff8880003b60b0 (&tree->tree_lock/1){+.+.}-{3:3}, at: hfsplus_find_init+0x14a/0x1c0 fs/hfsplus/bfind.c:28
 #4: ffff888035444108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{3:3}, at: hfsplus_file_extend+0x21b/0x1b70 fs/hfsplus/extents.c:458

stack backtrace:
CPU: 0 UID: 0 PID: 5114 Comm: syz.0.0 Not tainted 6.11.0-rc6-syzkaller-00075-gad618736883b #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:119
 check_deadlock kernel/locking/lockdep.c:3061 [inline]
 validate_chain+0x15d3/0x5900 kernel/locking/lockdep.c:3855
 __lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5142
 lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5759
 __mutex_lock_common kernel/locking/mutex.c:608 [inline]
 __mutex_lock+0x136/0xd70 kernel/locking/mutex.c:752
 hfsplus_find_init+0x14a/0x1c0 fs/hfsplus/bfind.c:28
 hfsplus_ext_read_extent fs/hfsplus/extents.c:216 [inline]
 hfsplus_file_extend+0x454/0x1b70 fs/hfsplus/extents.c:462
 hfsplus_bmap_reserve+0x105/0x4e0 fs/hfsplus/btree.c:358
 __hfsplus_ext_write_extent+0x2a4/0x5c0 fs/hfsplus/extents.c:104
 __hfsplus_ext_cache_extent+0x84/0xe10 fs/hfsplus/extents.c:186
 hfsplus_file_truncate+0x541/0xc70 fs/hfsplus/extents.c:600
 hfsplus_setattr+0x1bd/0x270 fs/hfsplus/inode.c:265
 notify_change+0xbca/0xe90 fs/attr.c:503
 do_truncate fs/open.c:65 [inline]
 do_ftruncate+0x46b/0x590 fs/open.c:181
 do_sys_ftruncate fs/open.c:199 [inline]
 __do_sys_ftruncate fs/open.c:207 [inline]
 __se_sys_ftruncate fs/open.c:205 [inline]
 __x64_sys_ftruncate+0x95/0xf0 fs/open.c:205
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f24ff97cef9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f24ff7ff038 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f24ffb35f80 RCX: 00007f24ff97cef9
RDX: 0000000000000000 RSI: 000000000000c17a RDI: 0000000000000005
RBP: 00007f24ff9ef01e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f24ffb35f80 R15: 00007ffca79e9018
 </TASK>