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}]) [ 74.417407][ T5339] Bluetooth: hci0: command tx timeout [ 74.505756][ T5358] loop0: detected capacity change from 0 to 1024 [ 74.616248][ T5358] [ 74.617237][ T5358] ============================================ [ 74.619630][ T5358] WARNING: possible recursive locking detected [ 74.622083][ T5358] syzkaller #0 Not tainted [ 74.623917][ T5358] -------------------------------------------- [ 74.626441][ T5358] syz.0.0/5358 is trying to acquire lock: [ 74.628794][ T5358] ffff88805301c108 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.633128][ T5358] [ 74.633128][ T5358] but task is already holding lock: [ 74.636148][ T5358] ffff88805301e988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.640616][ T5358] [ 74.640616][ T5358] other info that might help us debug this: [ 74.644075][ T5358] Possible unsafe locking scenario: [ 74.644075][ T5358] [ 74.647289][ T5358] CPU0 [ 74.648638][ T5358] ---- [ 74.650038][ T5358] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.652519][ T5358] lock(&HFSPLUS_I(inode)->extents_lock); [ 74.654940][ T5358] [ 74.654940][ T5358] *** DEADLOCK *** [ 74.654940][ T5358] [ 74.658223][ T5358] May be due to missing lock nesting notation [ 74.658223][ T5358] [ 74.661659][ T5358] 3 locks held by syz.0.0/5358: [ 74.663761][ T5358] #0: ffff88805301eb78 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: generic_file_write_iter+0xeb/0x550 [ 74.668952][ T5358] #1: ffff88805301e988 (&HFSPLUS_I(inode)->extents_lock){+.+.}-{4:4}, at: hfsplus_file_extend+0x1fc/0x1990 [ 74.674456][ T5358] #2: ffff888000e280b0 (&tree->tree_lock/1){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0 [ 74.678848][ T5358] [ 74.678848][ T5358] stack backtrace: [ 74.681477][ T5358] CPU: 0 UID: 0 PID: 5358 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 74.681501][ T5358] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 74.681509][ T5358] Call Trace: [ 74.681516][ T5358] [ 74.681525][ T5358] dump_stack_lvl+0x189/0x250 [ 74.681544][ T5358] ? __pfx_dump_stack_lvl+0x10/0x10 [ 74.681558][ T5358] ? __pfx__printk+0x10/0x10 [ 74.681573][ T5358] ? print_lock_name+0xde/0x100 [ 74.681588][ T5358] print_deadlock_bug+0x28b/0x2a0 [ 74.681601][ T5358] validate_chain+0x1a3f/0x2140 [ 74.681612][ T5358] ? __bfs+0x154/0x2a0 [ 74.681623][ T5358] ? check_path+0x21/0x40 [ 74.681633][ T5358] ? look_up_lock_class+0x74/0x170 [ 74.681708][ T5358] ? register_lock_class+0x51/0x320 [ 74.681724][ T5358] __lock_acquire+0xab9/0xd20 [ 74.681739][ T5358] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.681750][ T5358] lock_acquire+0x120/0x360 [ 74.681767][ T5358] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.681781][ T5358] __mutex_lock+0x187/0x1350 [ 74.681798][ T5358] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.681809][ T5358] ? check_path+0x21/0x40 [ 74.681819][ T5358] ? check_noncircular+0xe0/0x160 [ 74.681831][ T5358] ? hfsplus_file_extend+0x1fc/0x1990 [ 74.681841][ T5358] ? lockdep_unlock+0x89/0x120 [ 74.681854][ T5358] ? __pfx___mutex_lock+0x10/0x10 [ 74.681965][ T5358] hfsplus_file_extend+0x1fc/0x1990 [ 74.681981][ T5358] ? __lock_acquire+0xab9/0xd20 [ 74.682000][ T5358] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 74.682012][ T5358] ? __pfx___mutex_trylock_common+0x10/0x10 [ 74.682027][ T5358] ? __se_sys_io_submit+0x185/0x2f0 [ 74.682041][ T5358] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.682053][ T5358] ? rcu_is_watching+0x15/0xb0 [ 74.682076][ T5358] ? trace_contention_end+0x39/0x120 [ 74.682089][ T5358] ? __mutex_lock+0x335/0x1350 [ 74.682112][ T5358] ? hfsplus_brec_find+0x191/0x500 [ 74.682131][ T5358] hfsplus_bmap_reserve+0x122/0x500 [ 74.682149][ T5358] __hfsplus_ext_write_extent+0x28d/0x5b0 [ 74.682163][ T5358] __hfsplus_ext_cache_extent+0x89/0xe30 [ 74.682176][ T5358] hfsplus_file_extend+0x444/0x1990 [ 74.682192][ T5358] ? __pfx_hfsplus_file_extend+0x10/0x10 [ 74.682208][ T5358] ? clean_bdev_aliases+0x5c9/0x6b0 [ 74.682228][ T5358] ? __pfx_clean_bdev_aliases+0x10/0x10 [ 74.682245][ T5358] hfsplus_get_block+0x411/0x1530 [ 74.682258][ T5358] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.682270][ T5358] ? do_raw_spin_unlock+0x4d/0x240 [ 74.682284][ T5358] ? _raw_spin_unlock+0x28/0x50 [ 74.682296][ T5358] __block_write_begin_int+0x6b5/0x1900 [ 74.682309][ T5358] ? folio_add_lru+0x1b2/0x3d0 [ 74.682328][ T5358] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.682340][ T5358] ? __pfx___block_write_begin_int+0x10/0x10 [ 74.682353][ T5358] cont_write_begin+0x789/0xb50 [ 74.682366][ T5358] ? __pfx_cont_write_begin+0x10/0x10 [ 74.682375][ T5358] ? __pfx___might_resched+0x10/0x10 [ 74.682387][ T5358] ? __mark_inode_dirty+0x3d2/0xe10 [ 74.682407][ T5358] ? folio_unlock+0x101/0x160 [ 74.682424][ T5358] hfsplus_write_begin+0x66/0xb0 [ 74.682435][ T5358] ? __pfx_hfsplus_get_block+0x10/0x10 [ 74.682448][ T5358] generic_perform_write+0x2c5/0x900 [ 74.682458][ T5358] ? __pfx_generic_perform_write+0x10/0x10 [ 74.682467][ T5358] ? file_update_time+0x2da/0x490 [ 74.682478][ T5358] ? __generic_file_write_iter+0xf9/0x230 [ 74.682489][ T5358] ? generic_file_write_iter+0x103/0x550 [ 74.682501][ T5358] generic_file_write_iter+0x117/0x550 [ 74.682513][ T5358] ? __pfx_generic_file_write_iter+0x10/0x10 [ 74.682525][ T5358] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.682541][ T5358] ? _raw_spin_unlock_irqrestore+0xad/0x110 [ 74.682555][ T5358] ? __pfx_aa_file_perm+0x10/0x10 [ 74.682577][ T5358] ? __lock_acquire+0xab9/0xd20 [ 74.682598][ T5358] ? aio_write+0x4c4/0x7a0 [ 74.682614][ T5358] aio_write+0x532/0x7a0 [ 74.682630][ T5358] ? __pfx_aio_write+0x10/0x10 [ 74.682647][ T5358] ? __might_fault+0xb0/0x130 [ 74.682665][ T5358] io_submit_one+0x78b/0x1310 [ 74.682683][ T5358] ? __pfx_io_submit_one+0x10/0x10 [ 74.682698][ T5358] ? __might_fault+0xb0/0x130 [ 74.682712][ T5358] ? __might_fault+0xb0/0x130 [ 74.682724][ T5358] __se_sys_io_submit+0x185/0x2f0 [ 74.682738][ T5358] ? __pfx___se_sys_io_submit+0x10/0x10 [ 74.682753][ T5358] ? do_syscall_64+0xbe/0x3b0 [ 74.682791][ T5358] do_syscall_64+0xfa/0x3b0 [ 74.682808][ T5358] ? lockdep_hardirqs_on+0x9c/0x150 [ 74.682823][ T5358] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.682834][ T5358] ? clear_bhb_loop+0x60/0xb0 [ 74.682847][ T5358] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 74.682858][ T5358] RIP: 0033:0x7f8de018ebe9 [ 74.682872][ T5358] 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 [ 74.682879][ T5358] RSP: 002b:00007f8de1059038 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 [ 74.682893][ T5358] RAX: ffffffffffffffda RBX: 00007f8de03c5fa0 RCX: 00007f8de018ebe9 [ 74.682902][ T5358] RDX: 0000200000000540 RSI: 000000000000003b RDI: 00007f8de100f000 [ 74.682911][ T5358] RBP: 00007f8de0211e19 R08: 0000000000000000 R09: 0000000000000000 [ 74.682919][ T5358] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 74.682926][ T5358] R13: 00007f8de03c6038 R14: 00007f8de03c5fa0 R15: 00007ffe10cccac8 [ 74.682938][ T5358]