program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r0 = creat(&(0x7f0000000000)='./file1\x00', 0x148) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) [ 86.097403][ T5327] loop0: detected capacity change from 0 to 1024 [ 86.166183][ T5327] [ 86.167319][ T5327] ============================================ [ 86.169990][ T5327] WARNING: possible recursive locking detected [ 86.172645][ T5327] syzkaller #0 Not tainted [ 86.174570][ T5327] -------------------------------------------- [ 86.177221][ T5327] syz.0.0/5327 is trying to acquire lock: [ 86.179716][ T5327] ffff8880518d0108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1ba0 [ 86.184591][ T5327] [ 86.184591][ T5327] but task is already holding lock: [ 86.187786][ T5327] ffff8880518d2988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1ba0 [ 86.192445][ T5327] [ 86.192445][ T5327] other info that might help us debug this: [ 86.195781][ T5327] Possible unsafe locking scenario: [ 86.195781][ T5327] [ 86.198766][ T5327] CPU0 [ 86.200164][ T5327] ---- [ 86.201498][ T5327] lock(&HFSPLUS_I(inode)->extents_lock); [ 86.203907][ T5327] lock(&HFSPLUS_I(inode)->extents_lock); [ 86.206256][ T5327] [ 86.206256][ T5327] *** DEADLOCK *** [ 86.206256][ T5327] [ 86.209453][ T5327] May be due to missing lock nesting notation [ 86.209453][ T5327] [ 86.212738][ T5327] 3 locks held by syz.0.0/5327: [ 86.214838][ T5327] #0: ffff8880518d2b78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xeb/0x550 [ 86.219652][ T5327] #1: ffff8880518d2988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1ba0 [ 86.224113][ T5327] #2: ffff8880112ee0b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x168/0x290 [ 86.228530][ T5327] [ 86.228530][ T5327] stack backtrace: [ 86.231110][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 86.231125][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 86.231133][ T5327] Call Trace: [ 86.231144][ T5327] [ 86.231150][ T5327] dump_stack_lvl+0x189/0x250 [ 86.231172][ T5327] ? __pfx_dump_stack_lvl+0x10/0x10 [ 86.231187][ T5327] ? __pfx__printk+0x10/0x10 [ 86.231200][ T5327] ? print_lock_name+0xde/0x100 [ 86.231212][ T5327] print_deadlock_bug+0x28b/0x2a0 [ 86.231228][ T5327] validate_chain+0x1a3f/0x2140 [ 86.231241][ T5327] ? __bfs+0x154/0x2a0 [ 86.231251][ T5327] ? generic_file_write_iter+0x117/0x550 [ 86.231263][ T5327] ? check_path+0x21/0x40 [ 86.231274][ T5327] ? look_up_lock_class+0x74/0x170 [ 86.231332][ T5327] ? register_lock_class+0x51/0x320 [ 86.231344][ T5327] __lock_acquire+0xab9/0xd20 [ 86.231357][ T5327] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 86.231371][ T5327] lock_acquire+0x120/0x360 [ 86.231382][ T5327] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 86.231398][ T5327] __mutex_lock+0x187/0x1350 [ 86.231412][ T5327] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 86.231425][ T5327] ? check_path+0x21/0x40 [ 86.231436][ T5327] ? check_noncircular+0xe0/0x160 [ 86.231450][ T5327] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 86.231462][ T5327] ? lockdep_unlock+0x89/0x120 [ 86.231478][ T5327] ? __pfx___mutex_lock+0x10/0x10 [ 86.231497][ T5327] hfsplus_file_extend+0x1f8/0x1ba0 [ 86.231508][ T5327] ? __lock_acquire+0xab9/0xd20 [ 86.231519][ T5327] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 86.231530][ T5327] ? __pfx___mutex_trylock_common+0x10/0x10 [ 86.231542][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.231554][ T5327] ? rcu_is_watching+0x15/0xb0 [ 86.231567][ T5327] ? trace_contention_end+0x39/0x120 [ 86.231579][ T5327] ? __asan_memset+0x22/0x50 [ 86.231591][ T5327] ? hfsplus_brec_find+0x1a9/0x510 [ 86.231603][ T5327] hfsplus_bmap_reserve+0x122/0x500 [ 86.231622][ T5327] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 86.231637][ T5327] __hfsplus_ext_cache_extent+0x89/0xe30 [ 86.231649][ T5327] hfsplus_file_extend+0x437/0x1ba0 [ 86.231659][ T5327] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 86.231668][ T5327] ? clean_bdev_aliases+0x5c9/0x6b0 [ 86.231677][ T5327] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 86.231691][ T5327] hfsplus_get_block+0x40a/0x15d0 [ 86.231700][ T5327] ? __pfx_hfsplus_get_block+0x10/0x10 [ 86.231708][ T5327] ? do_raw_spin_unlock+0x4d/0x240 [ 86.231717][ T5327] ? _raw_spin_unlock+0x28/0x50 [ 86.231726][ T5327] __block_write_begin_int+0x6b5/0x1900 [ 86.231733][ T5327] ? __pfx_workingset_update_node+0x10/0x10 [ 86.231742][ T5327] ? __pfx_hfsplus_get_block+0x10/0x10 [ 86.231751][ T5327] ? __pfx___block_write_begin_int+0x10/0x10 [ 86.231761][ T5327] cont_write_begin+0x789/0xb50 [ 86.231772][ T5327] ? __pfx_cont_write_begin+0x10/0x10 [ 86.231780][ T5327] ? __pfx___might_resched+0x10/0x10 [ 86.231789][ T5327] ? __mark_inode_dirty+0x3d2/0xe10 [ 86.231800][ T5327] ? folio_unlock+0x101/0x160 [ 86.231813][ T5327] hfsplus_write_begin+0x66/0xb0 [ 86.231824][ T5327] ? __pfx_hfsplus_get_block+0x10/0x10 [ 86.231837][ T5327] generic_perform_write+0x2c5/0x900 [ 86.231848][ T5327] ? __pfx_generic_perform_write+0x10/0x10 [ 86.231857][ T5327] ? file_update_time+0x2da/0x490 [ 86.231868][ T5327] ? __generic_file_write_iter+0xf9/0x230 [ 86.231878][ T5327] ? generic_file_write_iter+0x103/0x550 [ 86.231889][ T5327] generic_file_write_iter+0x117/0x550 [ 86.231900][ T5327] ? __pfx_generic_file_write_iter+0x10/0x10 [ 86.231912][ T5327] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 86.231925][ T5327] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 86.231938][ T5327] ? __pfx_aa_file_perm+0x10/0x10 [ 86.231955][ T5327] ? __lock_acquire+0xab9/0xd20 [ 86.231970][ T5327] ? aio_write+0x4c4/0x7a0 [ 86.231981][ T5327] aio_write+0x535/0x7a0 [ 86.231988][ T5327] ? __pfx_aio_write+0x10/0x10 [ 86.231996][ T5327] ? __might_fault+0xb0/0x130 [ 86.232006][ T5327] io_submit_one+0x78b/0x1310 [ 86.232015][ T5327] ? __pfx_io_submit_one+0x10/0x10 [ 86.232021][ T5327] ? __might_fault+0xb0/0x130 [ 86.232030][ T5327] ? __might_fault+0xb0/0x130 [ 86.232038][ T5327] __se_sys_io_submit+0x185/0x2f0 [ 86.232048][ T5327] ? __pfx___se_sys_io_submit+0x10/0x10 [ 86.232059][ T5327] ? do_syscall_64+0xbe/0xfa0 [ 86.232068][ T5327] do_syscall_64+0xfa/0xfa0 [ 86.232077][ T5327] ? lockdep_hardirqs_on+0x9c/0x150 [ 86.232085][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.232092][ T5327] ? clear_bhb_loop+0x60/0xb0 [ 86.232099][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 86.232108][ T5327] RIP: 0033:0x7f4cde78f6c9 [ 86.232119][ T5327] 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 [ 86.232128][ T5327] RSP: 002b:00007f4cdf698038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 86.232142][ T5327] RAX: ffffffffffffffda RBX: 00007f4cde9e5fa0 RCX: 00007f4cde78f6c9 [ 86.232151][ T5327] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007f4cdf64e000 [ 86.232159][ T5327] RBP: 00007f4cde811f91 R08: 0000000000000000 R09: 0000000000000000 [ 86.232166][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 86.232172][ T5327] R13: 00007f4cde9e6038 R14: 00007f4cde9e5fa0 R15: 00007fff1688ffa8 [ 86.232184][ T5327] [ 86.453913][ T4668] Bluetooth: hci0: command tx timeout