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, &(0x7f0000000200)=0x0) io_submit(r1, 0x3b, &(0x7f0000000540)=[&(0x7f00000000c0)={0x25, 0xe7030000, 0x0, 0x1, 0x0, r0, &(0x7f0000000000), 0x70000}]) [ 85.034325][ T5304] Bluetooth: hci0: command tx timeout [ 85.125340][ T5331] loop0: detected capacity change from 0 to 1024 [ 85.168200][ T5331] [ 85.169336][ T5331] ============================================ [ 85.172524][ T5331] WARNING: possible recursive locking detected [ 85.175304][ T5331] syzkaller #0 Not tainted [ 85.177307][ T5331] -------------------------------------------- [ 85.179937][ T5331] syz.0.0/5331 is trying to acquire lock: [ 85.182315][ T5331] ffff888012720108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1ba0 [ 85.186953][ T5331] [ 85.186953][ T5331] but task is already holding lock: [ 85.190329][ T5331] ffff888012722988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1ba0 [ 85.196307][ T5331] [ 85.196307][ T5331] other info that might help us debug this: [ 85.199995][ T5331] Possible unsafe locking scenario: [ 85.199995][ T5331] [ 85.203330][ T5331] CPU0 [ 85.204832][ T5331] ---- [ 85.206368][ T5331] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.208945][ T5331] lock(&HFSPLUS_I(inode)->extents_lock); [ 85.211563][ T5331] [ 85.211563][ T5331] *** DEADLOCK *** [ 85.211563][ T5331] [ 85.215308][ T5331] May be due to missing lock nesting notation [ 85.215308][ T5331] [ 85.219134][ T5331] 3 locks held by syz.0.0/5331: [ 85.221262][ T5331] #0: ffff888012722b78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xeb/0x550 [ 85.226114][ T5331] #1: ffff888012722988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1f8/0x1ba0 [ 85.231169][ T5331] #2: ffff8880332c20b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x168/0x290 [ 85.235169][ T5331] [ 85.235169][ T5331] stack backtrace: [ 85.237326][ T5331] CPU: 0 UID: 0 PID: 5331 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 85.237340][ T5331] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 85.237348][ T5331] Call Trace: [ 85.237353][ T5331] [ 85.237358][ T5331] dump_stack_lvl+0x189/0x250 [ 85.237370][ T5331] ? __pfx_dump_stack_lvl+0x10/0x10 [ 85.237377][ T5331] ? __pfx__printk+0x10/0x10 [ 85.237383][ T5331] ? unwind_next_frame+0xa5/0x2390 [ 85.237395][ T5331] ? print_lock_name+0xde/0x100 [ 85.237402][ T5331] print_deadlock_bug+0x28b/0x2a0 [ 85.237413][ T5331] validate_chain+0x1a3f/0x2140 [ 85.237424][ T5331] ? unwind_next_frame+0xa5/0x2390 [ 85.237433][ T5331] ? __bfs+0x154/0x2a0 [ 85.237443][ T5331] ? check_path+0x21/0x40 [ 85.237453][ T5331] ? look_up_lock_class+0x74/0x170 [ 85.237508][ T5331] ? register_lock_class+0x51/0x320 [ 85.237517][ T5331] __lock_acquire+0xab9/0xd20 [ 85.237528][ T5331] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 85.237538][ T5331] lock_acquire+0x120/0x360 [ 85.237547][ T5331] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 85.237560][ T5331] __mutex_lock+0x187/0x1350 [ 85.237567][ T5331] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 85.237576][ T5331] ? check_path+0x21/0x40 [ 85.237585][ T5331] ? check_noncircular+0xe0/0x160 [ 85.237594][ T5331] ? hfsplus_file_extend+0x1f8/0x1ba0 [ 85.237603][ T5331] ? lockdep_unlock+0x89/0x120 [ 85.237610][ T5331] ? __pfx___mutex_lock+0x10/0x10 [ 85.237619][ T5331] hfsplus_file_extend+0x1f8/0x1ba0 [ 85.237628][ T5331] ? __lock_acquire+0xab9/0xd20 [ 85.237637][ T5331] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 85.237646][ T5331] ? __pfx___mutex_trylock_common+0x10/0x10 [ 85.237655][ T5331] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.237662][ T5331] ? rcu_is_watching+0x15/0xb0 [ 85.237671][ T5331] ? trace_contention_end+0x39/0x120 [ 85.237680][ T5331] ? __asan_memset+0x22/0x50 [ 85.237689][ T5331] ? hfsplus_brec_find+0x1a9/0x510 [ 85.237697][ T5331] hfsplus_bmap_reserve+0x122/0x500 [ 85.237706][ T5331] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 85.237712][ T5331] __hfsplus_ext_cache_extent+0x89/0xe30 [ 85.237719][ T5331] hfsplus_file_extend+0x437/0x1ba0 [ 85.237730][ T5331] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 85.237740][ T5331] ? clean_bdev_aliases+0x5c9/0x6b0 [ 85.237750][ T5331] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 85.237758][ T5331] hfsplus_get_block+0x40a/0x15d0 [ 85.237769][ T5331] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.237778][ T5331] ? do_raw_spin_unlock+0x4d/0x240 [ 85.237785][ T5331] ? _raw_spin_unlock+0x28/0x50 [ 85.237795][ T5331] __block_write_begin_int+0x6b5/0x1900 [ 85.237803][ T5331] ? __pfx_workingset_update_node+0x10/0x10 [ 85.237813][ T5331] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.237822][ T5331] ? __pfx___block_write_begin_int+0x10/0x10 [ 85.237832][ T5331] cont_write_begin+0x789/0xb50 [ 85.237842][ T5331] ? __pfx_cont_write_begin+0x10/0x10 [ 85.237850][ T5331] ? __pfx___might_resched+0x10/0x10 [ 85.237858][ T5331] ? __mark_inode_dirty+0x3d2/0xe10 [ 85.237867][ T5331] ? folio_unlock+0x101/0x160 [ 85.237873][ T5331] hfsplus_write_begin+0x66/0xb0 [ 85.237882][ T5331] ? __pfx_hfsplus_get_block+0x10/0x10 [ 85.237893][ T5331] generic_perform_write+0x2c5/0x900 [ 85.237907][ T5331] ? __pfx_generic_perform_write+0x10/0x10 [ 85.237919][ T5331] ? file_update_time+0x2da/0x490 [ 85.237932][ T5331] ? __generic_file_write_iter+0xf9/0x230 [ 85.237940][ T5331] ? generic_file_write_iter+0x103/0x550 [ 85.237948][ T5331] generic_file_write_iter+0x117/0x550 [ 85.237956][ T5331] ? __pfx_generic_file_write_iter+0x10/0x10 [ 85.237963][ T5331] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 85.237972][ T5331] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 85.237983][ T5331] ? __pfx_aa_file_perm+0x10/0x10 [ 85.237995][ T5331] ? __lock_acquire+0xab9/0xd20 [ 85.238012][ T5331] ? aio_write+0x4c4/0x7a0 [ 85.238024][ T5331] aio_write+0x535/0x7a0 [ 85.238037][ T5331] ? __pfx_aio_write+0x10/0x10 [ 85.238046][ T5331] ? __might_fault+0xb0/0x130 [ 85.238059][ T5331] io_submit_one+0x78b/0x1310 [ 85.238069][ T5331] ? __pfx_io_submit_one+0x10/0x10 [ 85.238076][ T5331] ? __might_fault+0xb0/0x130 [ 85.238086][ T5331] ? __might_fault+0xb0/0x130 [ 85.238095][ T5331] __se_sys_io_submit+0x185/0x2f0 [ 85.238102][ T5331] ? __pfx___se_sys_io_submit+0x10/0x10 [ 85.238111][ T5331] ? do_syscall_64+0xbe/0xfa0 [ 85.238117][ T5331] do_syscall_64+0xfa/0xfa0 [ 85.238123][ T5331] ? lockdep_hardirqs_on+0x9c/0x150 [ 85.238132][ T5331] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.238138][ T5331] ? clear_bhb_loop+0x60/0xb0 [ 85.238146][ T5331] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 85.238152][ T5331] RIP: 0033:0x7f17b438eec9 [ 85.238161][ T5331] 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 [ 85.238166][ T5331] RSP: 002b:00007f17b514b038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 85.238175][ T5331] RAX: ffffffffffffffda RBX: 00007f17b45e5fa0 RCX: 00007f17b438eec9 [ 85.238179][ T5331] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007f17b5122000 [ 85.238184][ T5331] RBP: 00007f17b4411f91 R08: 0000000000000000 R09: 0000000000000000 [ 85.238188][ T5331] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 85.238192][ T5331] R13: 00007f17b45e6038 R14: 00007f17b45e5fa0 R15: 00007fff947471a8 [ 85.238199][ T5331]