program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r0 = creat(&(0x7f0000000100)='./file1\x00', 0x84) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) [ 74.646637][ T5309] Bluetooth: hci0: command tx timeout [ 74.725483][ T5329] loop0: detected capacity change from 0 to 1024 [ 74.800168][ T5329] [ 74.801445][ T5329] ============================================ [ 74.804327][ T5329] WARNING: possible recursive locking detected [ 74.807052][ T5329] 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 Not tainted [ 74.810452][ T5329] -------------------------------------------- [ 74.813626][ T5329] syz.0.0/5329 is trying to acquire lock: [ 74.816320][ T5329] ffff888052a38108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.821089][ T5329] [ 74.821089][ T5329] but task is already holding lock: [ 74.824094][ T5329] ffff888052a3a988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.828943][ T5329] [ 74.828943][ T5329] other info that might help us debug this: [ 74.832842][ T5329] Possible unsafe locking scenario: [ 74.832842][ T5329] [ 74.836443][ T5329] CPU0 [ 74.837954][ T5329] ---- [ 74.839424][ T5329] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.842178][ T5329] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.845359][ T5329] [ 74.845359][ T5329] *** DEADLOCK *** [ 74.845359][ T5329] [ 74.849188][ T5329] May be due to missing lock nesting notation [ 74.849188][ T5329] [ 74.852751][ T5329] 3 locks held by syz.0.0/5329: [ 74.854799][ T5329] #0: ffff888052a3ab78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xe3/0x540 [ 74.860107][ T5329] #1: ffff888052a3a988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.865423][ T5329] #2: ffff88801e6080b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 74.869778][ T5329] [ 74.869778][ T5329] stack backtrace: [ 74.872511][ T5329] CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted 6.16.0-rc1-syzkaller-00101-g27605c8c0f69 #0 PREEMPT(full) [ 74.872532][ T5329] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.872541][ T5329] Call Trace: [ 74.872550][ T5329] [ 74.872558][ T5329] dump_stack_lvl+0x189/0x250 [ 74.872585][ T5329] ? __pfx_dump_stack_lvl+0x10/0x10 [ 74.872598][ T5329] ? __pfx__printk+0x10/0x10 [ 74.872609][ T5329] ? print_lock_name+0xde/0x100 [ 74.872617][ T5329] print_deadlock_bug+0x28b/0x2a0 [ 74.872628][ T5329] validate_chain+0x1a3f/0x2140 [ 74.872637][ T5329] ? check_path+0x21/0x40 [ 74.872645][ T5329] ? check_noncircular+0xe0/0x160 [ 74.872652][ T5329] ? look_up_lock_class+0x74/0x170 [ 74.872724][ T5329] ? register_lock_class+0x51/0x320 [ 74.872744][ T5329] __lock_acquire+0xab9/0xd20 [ 74.872758][ T5329] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.872770][ T5329] lock_acquire+0x120/0x360 [ 74.872780][ T5329] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.872792][ T5329] __mutex_lock+0x182/0xe80 [ 74.872800][ T5329] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.872810][ T5329] ? check_path+0x21/0x40 [ 74.872816][ T5329] ? check_noncircular+0xe0/0x160 [ 74.872823][ T5329] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.872833][ T5329] ? __pfx___mutex_lock+0x10/0x10 [ 74.872843][ T5329] hfsplus_file_extend+0x1fc/0x1990 [ 74.872855][ T5329] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 74.872873][ T5329] ? __mutex_trylock_common+0x153/0x260 [ 74.872886][ T5329] ? __pfx___mutex_trylock_common+0x10/0x10 [ 74.872902][ T5329] ? rcu_is_watching+0x15/0xb0 [ 74.872922][ T5329] ? trace_contention_end+0x39/0x120 [ 74.872934][ T5329] ? __mutex_lock+0x330/0xe80 [ 74.872945][ T5329] ? hfsplus_brec_find+0x191/0x500 [ 74.872959][ T5329] hfsplus_bmap_reserve+0x122/0x500 [ 74.872979][ T5329] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 74.872996][ T5329] __hfsplus_ext_cache_extent+0x89/0xe30 [ 74.873014][ T5329] hfsplus_file_extend+0x444/0x1990 [ 74.873031][ T5329] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 74.873048][ T5329] ? clean_bdev_aliases+0x5c9/0x6b0 [ 74.873066][ T5329] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 74.873081][ T5329] hfsplus_get_block+0x411/0x1530 [ 74.873099][ T5329] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.873114][ T5329] ? do_raw_spin_unlock+0x4d/0x240 [ 74.873127][ T5329] ? _raw_spin_unlock+0x28/0x50 [ 74.873146][ T5329] __block_write_begin_int+0x6b2/0x1900 [ 74.873165][ T5329] ? folio_add_lru+0x1b2/0x3d0 [ 74.873181][ T5329] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.873197][ T5329] ? __pfx___block_write_begin_int+0x10/0x10 [ 74.873218][ T5329] cont_write_begin+0x789/0xb50 [ 74.873240][ T5329] ? __pfx_cont_write_begin+0x10/0x10 [ 74.873256][ T5329] ? __pfx___might_resched+0x10/0x10 [ 74.873275][ T5329] ? folio_unlock+0x101/0x160 [ 74.873289][ T5329] hfsplus_write_begin+0x66/0xb0 [ 74.873303][ T5329] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.873318][ T5329] generic_perform_write+0x2c4/0x910 [ 74.873338][ T5329] ? __pfx_generic_perform_write+0x10/0x10 [ 74.873354][ T5329] ? file_update_time+0x2da/0x490 [ 74.873372][ T5329] ? __generic_file_write_iter+0xf9/0x230 [ 74.873388][ T5329] ? generic_file_write_iter+0xfb/0x540 [ 74.873404][ T5329] generic_file_write_iter+0x10f/0x540 [ 74.873447][ T5329] ? aa_file_perm+0x11f/0xed0 [ 74.873466][ T5329] ? __pfx_generic_file_write_iter+0x10/0x10 [ 74.873486][ T5329] ? __lock_acquire+0xab9/0xd20 [ 74.873507][ T5329] ? aio_write+0x4c4/0x7a0 [ 74.873522][ T5329] aio_write+0x535/0x7a0 [ 74.873538][ T5329] ? __pfx_aio_write+0x10/0x10 [ 74.873555][ T5329] ? __might_fault+0xb0/0x130 [ 74.873571][ T5329] io_submit_one+0x78b/0x1310 [ 74.873589][ T5329] ? __pfx_io_submit_one+0x10/0x10 [ 74.873603][ T5329] ? __might_fault+0xb0/0x130 [ 74.873617][ T5329] ? __might_fault+0xb0/0x130 [ 74.873629][ T5329] __se_sys_io_submit+0x185/0x2f0 [ 74.873642][ T5329] ? __pfx___se_sys_io_submit+0x10/0x10 [ 74.873656][ T5329] ? do_syscall_64+0xbe/0x3b0 [ 74.873669][ T5329] do_syscall_64+0xfa/0x3b0 [ 74.873680][ T5329] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.873697][ T5329] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.873710][ T5329] ? clear_bhb_loop+0x60/0xb0 [ 74.873723][ T5329] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.873736][ T5329] RIP: 0033:0x7fcaa578e929 [ 74.873751][ T5329] 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 [ 74.873761][ T5329] RSP: 002b:00007fcaa65bb038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 74.873776][ T5329] RAX: ffffffffffffffda RBX: 00007fcaa59b5fa0 RCX: 00007fcaa578e929 [ 74.873786][ T5329] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007fcaa6571000 [ 74.873795][ T5329] RBP: 00007fcaa5810b39 R08: 0000000000000000 R09: 0000000000000000 [ 74.873803][ T5329] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.873812][ T5329] R13: 0000000000000000 R14: 00007fcaa59b5fa0 R15: 00007ffefa9c39a8 [ 74.873826][ T5329]