program: syz_mount_image$hfsplus(&(0x7f0000000040), &(0x7f0000000080)='./file1\x00', 0x400, &(0x7f0000000140)=ANY=[], 0x1, 0x694, &(0x7f0000001100)="$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") r0 = creat(&(0x7f0000000000)='./file1\x00', 0x28) io_setup(0x202, &(0x7f0000000200)=0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) [ 85.725923][ T4685] Bluetooth: hci0: command tx timeout [ 85.840279][ T5341] loop0: detected capacity change from 0 to 1024 [ 85.914295][ T5341] [ 85.915357][ T5341] ============================================ [ 85.917675][ T5341] WARNING: possible recursive locking detected [ 85.920358][ T5341] 6.16.0-rc7-syzkaller-00093-g94ce1ac2c9b4 #0 Not tainted [ 85.923336][ T5341] -------------------------------------------- [ 85.925838][ T5341] syz.0.0/5341 is trying to acquire lock: [ 85.928418][ T5341] ffff888052ef4108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 85.933255][ T5341] [ 85.933255][ T5341] but task is already holding lock: [ 85.936237][ T5341] ffff888052ef6988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 85.940441][ T5341] [ 85.940441][ T5341] other info that might help us debug this: [ 85.943708][ T5341] Possible unsafe locking scenario: [ 85.943708][ T5341] [ 85.946709][ T5341] CPU0 [ 85.948062][ T5341] ---- [ 85.949459][ T5341] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.951759][ T5341] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.954092][ T5341] [ 85.954092][ T5341] *** DEADLOCK *** [ 85.954092][ T5341] [ 85.957750][ T5341] May be due to missing lock nesting notation [ 85.957750][ T5341] [ 85.961126][ T5341] 3 locks held by syz.0.0/5341: [ 85.963059][ T5341] #0: ffff888052ef6b78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xe3/0x540 [ 85.967745][ T5341] #1: ffff888052ef6988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 85.972777][ T5341] #2: ffff8880003580b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 85.976870][ T5341] [ 85.976870][ T5341] stack backtrace: [ 85.979556][ T5341] CPU: 0 UID: 0 PID: 5341 Comm: syz.0.0 Not tainted 6.16.0-rc7-syzkaller-00093-g94ce1ac2c9b4 #0 PREEMPT(full) [ 85.979573][ T5341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.979581][ T5341] Call Trace: [ 85.979588][ T5341] [ 85.979594][ T5341] dump_stack_lvl+0x189/0x250 [ 85.979611][ T5341] ? __pfx_dump_stack_lvl+0x10/0x10 [ 85.979620][ T5341] ? __pfx__printk+0x10/0x10 [ 85.979632][ T5341] ? print_lock_name+0xde/0x100 [ 85.979646][ T5341] print_deadlock_bug+0x28b/0x2a0 [ 85.979673][ T5341] validate_chain+0x1a3f/0x2140 [ 85.979688][ T5341] ? check_path+0x21/0x40 [ 85.979700][ T5341] ? check_noncircular+0xe0/0x160 [ 85.979715][ T5341] ? look_up_lock_class+0x74/0x170 [ 85.981278][ T5341] ? register_lock_class+0x51/0x320 [ 85.981291][ T5341] __lock_acquire+0xab9/0xd20 [ 85.981306][ T5341] ? hfsplus_file_extend+0x1fc/0x1990 [ 85.981323][ T5341] lock_acquire+0x120/0x360 [ 85.981333][ T5341] ? hfsplus_file_extend+0x1fc/0x1990 [ 85.981349][ T5341] __mutex_lock+0x182/0xe80 [ 85.981361][ T5341] ? hfsplus_file_extend+0x1fc/0x1990 [ 85.981378][ T5341] ? check_path+0x21/0x40 [ 85.981390][ T5341] ? check_noncircular+0xe0/0x160 [ 85.981404][ T5341] ? hfsplus_file_extend+0x1fc/0x1990 [ 85.981447][ T5341] ? __pfx___mutex_lock+0x10/0x10 [ 85.981464][ T5341] hfsplus_file_extend+0x1fc/0x1990 [ 85.981483][ T5341] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 85.981498][ T5341] ? __mutex_trylock_common+0x153/0x260 [ 85.981514][ T5341] ? __pfx___mutex_trylock_common+0x10/0x10 [ 85.981529][ T5341] ? rcu_is_watching+0x15/0xb0 [ 85.981541][ T5341] ? trace_contention_end+0x39/0x120 [ 85.981555][ T5341] ? __mutex_lock+0x330/0xe80 [ 85.981565][ T5341] ? hfsplus_brec_find+0x191/0x500 [ 85.981580][ T5341] hfsplus_bmap_reserve+0x122/0x500 [ 85.981594][ T5341] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 85.981612][ T5341] __hfsplus_ext_cache_extent+0x89/0xe30 [ 85.981630][ T5341] hfsplus_file_extend+0x444/0x1990 [ 85.981648][ T5341] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 85.981664][ T5341] ? clean_bdev_aliases+0x5c9/0x6b0 [ 85.981681][ T5341] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 85.981699][ T5341] hfsplus_get_block+0x411/0x1530 [ 85.981717][ T5341] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.981732][ T5341] ? do_raw_spin_unlock+0x4d/0x240 [ 85.981747][ T5341] ? _raw_spin_unlock+0x28/0x50 [ 85.981765][ T5341] __block_write_begin_int+0x6b2/0x1900 [ 85.981784][ T5341] ? folio_add_lru+0x1b2/0x3d0 [ 85.981800][ T5341] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.981817][ T5341] ? __pfx___block_write_begin_int+0x10/0x10 [ 85.981835][ T5341] cont_write_begin+0x789/0xb50 [ 85.981853][ T5341] ? __pfx_cont_write_begin+0x10/0x10 [ 85.981870][ T5341] ? __pfx___might_resched+0x10/0x10 [ 85.981884][ T5341] ? folio_unlock+0x101/0x160 [ 85.981898][ T5341] hfsplus_write_begin+0x66/0xb0 [ 85.981914][ T5341] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.981930][ T5341] generic_perform_write+0x2c7/0x910 [ 85.981942][ T5341] ? __pfx_generic_perform_write+0x10/0x10 [ 85.981953][ T5341] ? file_update_time+0x2da/0x490 [ 85.981964][ T5341] ? __generic_file_write_iter+0xf9/0x230 [ 85.981974][ T5341] ? generic_file_write_iter+0xfb/0x540 [ 85.981984][ T5341] generic_file_write_iter+0x10f/0x540 [ 85.981994][ T5341] ? aa_file_perm+0x11f/0xed0 [ 85.982007][ T5341] ? __pfx_generic_file_write_iter+0x10/0x10 [ 85.982022][ T5341] ? __lock_acquire+0xab9/0xd20 [ 85.982038][ T5341] ? aio_write+0x4c4/0x7a0 [ 85.982054][ T5341] aio_write+0x535/0x7a0 [ 85.982066][ T5341] ? __pfx_aio_write+0x10/0x10 [ 85.982076][ T5341] ? __might_fault+0xb0/0x130 [ 85.982086][ T5341] io_submit_one+0x78b/0x1310 [ 85.982105][ T5341] ? __pfx_io_submit_one+0x10/0x10 [ 85.982114][ T5341] ? __might_fault+0xb0/0x130 [ 85.982123][ T5341] ? __might_fault+0xb0/0x130 [ 85.982133][ T5341] __se_sys_io_submit+0x185/0x2f0 [ 85.982143][ T5341] ? __pfx___se_sys_io_submit+0x10/0x10 [ 85.982158][ T5341] ? do_syscall_64+0xbe/0x3b0 [ 85.982171][ T5341] do_syscall_64+0xfa/0x3b0 [ 85.982182][ T5341] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.982192][ T5341] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.982203][ T5341] ? clear_bhb_loop+0x60/0xb0 [ 85.982216][ T5341] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.982229][ T5341] RIP: 0033:0x7f8a6778e9a9 [ 85.982240][ T5341] 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 [ 85.982250][ T5341] RSP: 002b:00007f8a68590038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 85.982263][ T5341] RAX: ffffffffffffffda RBX: 00007f8a679b5fa0 RCX: 00007f8a6778e9a9 [ 85.982276][ T5341] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007f8a68546000 [ 85.982282][ T5341] RBP: 00007f8a67810d69 R08: 0000000000000000 R09: 0000000000000000 [ 85.982287][ T5341] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.982291][ T5341] R13: 0000000000000000 R14: 00007f8a679b5fa0 R15: 00007ffc3e767658 [ 85.982298][ T5341]