program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r0 = creat(&(0x7f0000000100)='./file1\x00', 0x0) io_setup(0x202, &(0x7f0000000000)=0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) [ 74.603596][ T45] Bluetooth: hci0: command tx timeout [ 74.639014][ T5359] loop0: detected capacity change from 0 to 1024 [ 74.735458][ T5359] [ 74.736597][ T5359] ============================================ [ 74.739132][ T5359] WARNING: possible recursive locking detected [ 74.741808][ T5359] syzkaller #0 Not tainted [ 74.743794][ T5359] -------------------------------------------- [ 74.746574][ T5359] syz.0.0/5359 is trying to acquire lock: [ 74.749091][ T5359] ffff888052f7c108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.753956][ T5359] [ 74.753956][ T5359] but task is already holding lock: [ 74.757261][ T5359] ffff888052f7e988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.761963][ T5359] [ 74.761963][ T5359] other info that might help us debug this: [ 74.765452][ T5359] Possible unsafe locking scenario: [ 74.765452][ T5359] [ 74.768702][ T5359] CPU0 [ 74.770181][ T5359] ---- [ 74.771606][ T5359] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.774229][ T5359] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.776813][ T5359] [ 74.776813][ T5359] *** DEADLOCK *** [ 74.776813][ T5359] [ 74.780364][ T5359] May be due to missing lock nesting notation [ 74.780364][ T5359] [ 74.783907][ T5359] 3 locks held by syz.0.0/5359: [ 74.786118][ T5359] #0: ffff888052f7eb78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xeb/0x550 [ 74.790943][ T5359] #1: ffff888052f7e988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.796051][ T5359] #2: ffff88801ed9e0b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 74.800515][ T5359] [ 74.800515][ T5359] stack backtrace: [ 74.803196][ T5359] CPU: 0 UID: 0 PID: 5359 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 74.803214][ T5359] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.803222][ T5359] Call Trace: [ 74.803229][ T5359] [ 74.803236][ T5359] dump_stack_lvl+0x189/0x250 [ 74.803256][ T5359] ? __pfx_dump_stack_lvl+0x10/0x10 [ 74.803270][ T5359] ? __pfx__printk+0x10/0x10 [ 74.803287][ T5359] ? print_lock_name+0xde/0x100 [ 74.803301][ T5359] print_deadlock_bug+0x28b/0x2a0 [ 74.803314][ T5359] validate_chain+0x1a3f/0x2140 [ 74.803326][ T5359] ? __bfs+0x154/0x2a0 [ 74.803336][ T5359] ? check_path+0x21/0x40 [ 74.803347][ T5359] ? look_up_lock_class+0x74/0x170 [ 74.803412][ T5359] ? register_lock_class+0x51/0x320 [ 74.803429][ T5359] __lock_acquire+0xab9/0xd20 [ 74.803447][ T5359] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.803459][ T5359] lock_acquire+0x120/0x360 [ 74.803475][ T5359] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.803489][ T5359] __mutex_lock+0x187/0x1350 [ 74.803506][ T5359] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.803516][ T5359] ? check_path+0x21/0x40 [ 74.803526][ T5359] ? check_noncircular+0xe0/0x160 [ 74.803537][ T5359] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.803548][ T5359] ? lockdep_unlock+0x89/0x120 [ 74.803563][ T5359] ? __pfx___mutex_lock+0x10/0x10 [ 74.803585][ T5359] hfsplus_file_extend+0x1fc/0x1990 [ 74.803597][ T5359] ? __lock_acquire+0xab9/0xd20 [ 74.803616][ T5359] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 74.803626][ T5359] ? __pfx___mutex_trylock_common+0x10/0x10 [ 74.803637][ T5359] ? __se_sys_io_submit+0x185/0x2f0 [ 74.803650][ T5359] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.803662][ T5359] ? rcu_is_watching+0x15/0xb0 [ 74.803674][ T5359] ? trace_contention_end+0x39/0x120 [ 74.803686][ T5359] ? __mutex_lock+0x335/0x1350 [ 74.803702][ T5359] ? hfsplus_brec_find+0x191/0x500 [ 74.803720][ T5359] hfsplus_bmap_reserve+0x122/0x500 [ 74.803736][ T5359] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 74.803749][ T5359] __hfsplus_ext_cache_extent+0x89/0xe30 [ 74.803763][ T5359] hfsplus_file_extend+0x444/0x1990 [ 74.803779][ T5359] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 74.803791][ T5359] ? clean_bdev_aliases+0x5c9/0x6b0 [ 74.803808][ T5359] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 74.803825][ T5359] hfsplus_get_block+0x411/0x1530 [ 74.803840][ T5359] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.803850][ T5359] ? do_raw_spin_unlock+0x4d/0x240 [ 74.803895][ T5359] ? _raw_spin_unlock+0x28/0x50 [ 74.803914][ T5359] __block_write_begin_int+0x6b5/0x1900 [ 74.803927][ T5359] ? folio_add_lru+0x1b2/0x3d0 [ 74.803944][ T5359] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.803955][ T5359] ? __pfx___block_write_begin_int+0x10/0x10 [ 74.803968][ T5359] cont_write_begin+0x789/0xb50 [ 74.803982][ T5359] ? __pfx_cont_write_begin+0x10/0x10 [ 74.803993][ T5359] ? __pfx___might_resched+0x10/0x10 [ 74.804005][ T5359] ? __mark_inode_dirty+0x3d2/0xe10 [ 74.804023][ T5359] ? folio_unlock+0x101/0x160 [ 74.804040][ T5359] hfsplus_write_begin+0x66/0xb0 [ 74.804051][ T5359] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.804064][ T5359] generic_perform_write+0x2c5/0x900 [ 74.804079][ T5359] ? __pfx_generic_perform_write+0x10/0x10 [ 74.804090][ T5359] ? file_update_time+0x2da/0x490 [ 74.804102][ T5359] ? __generic_file_write_iter+0xf9/0x230 [ 74.804113][ T5359] ? generic_file_write_iter+0x103/0x550 [ 74.804126][ T5359] generic_file_write_iter+0x117/0x550 [ 74.804138][ T5359] ? __pfx_generic_file_write_iter+0x10/0x10 [ 74.804151][ T5359] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.804174][ T5359] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 74.804189][ T5359] ? __pfx_aa_file_perm+0x10/0x10 [ 74.804212][ T5359] ? __lock_acquire+0xab9/0xd20 [ 74.804237][ T5359] ? aio_write+0x4c4/0x7a0 [ 74.804256][ T5359] aio_write+0x532/0x7a0 [ 74.804275][ T5359] ? __pfx_aio_write+0x10/0x10 [ 74.804295][ T5359] ? __might_fault+0xb0/0x130 [ 74.804311][ T5359] io_submit_one+0x78b/0x1310 [ 74.804332][ T5359] ? __pfx_io_submit_one+0x10/0x10 [ 74.804348][ T5359] ? __might_fault+0xb0/0x130 [ 74.804362][ T5359] ? __might_fault+0xb0/0x130 [ 74.804375][ T5359] __se_sys_io_submit+0x185/0x2f0 [ 74.804388][ T5359] ? __pfx___se_sys_io_submit+0x10/0x10 [ 74.804404][ T5359] ? do_syscall_64+0xbe/0x3b0 [ 74.804420][ T5359] do_syscall_64+0xfa/0x3b0 [ 74.804434][ T5359] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.804445][ T5359] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.804456][ T5359] ? clear_bhb_loop+0x60/0xb0 [ 74.804466][ T5359] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.804478][ T5359] RIP: 0033:0x7fdadcf8ebe9 [ 74.804489][ T5359] 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 [ 74.804499][ T5359] RSP: 002b:00007fdadde4b038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 74.804514][ T5359] RAX: ffffffffffffffda RBX: 00007fdadd1c5fa0 RCX: 00007fdadcf8ebe9 [ 74.804522][ T5359] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007fdadde01000 [ 74.804529][ T5359] RBP: 00007fdadd011e19 R08: 0000000000000000 R09: 0000000000000000 [ 74.804537][ T5359] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.804544][ T5359] R13: 00007fdadd1c6038 R14: 00007fdadd1c5fa0 R15: 00007ffd5a49c838 [ 74.804556][ T5359]