program:
mmap$IORING_OFF_SQ_RING(&(0x7f0000400000/0xc00000)=nil, 0xc00000, 0x0, 0x15031, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x100}, 0x0)
fsetxattr(0xffffffffffffffff, 0x0, 0x0, 0x0, 0x3)
sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7)
socketpair$unix(0x1, 0x2, 0x0, 0x0)
sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000000), 0x651, 0x0)
syz_clone(0x1000000, 0x0, 0xfffffd11, 0x0, 0x0, 0x0)
madvise(&(0x7f0000000000/0x600000)=nil, 0x600003, 0x19)
syz_mount_image$btrfs(&(0x7f0000000080), &(0x7f0000000040)='./file1\x00', 0x800810, &(0x7f0000000000)={[{@enospc_debug}]}, 0x1, 0x50f9, 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VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVFXbgWAAAAABAmL91GD0bAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAwKUAAAD///+xJCg=")
socket$nl_generic(0x10, 0x3, 0x10)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x101042, 0x175)
fallocate(r0, 0x1, 0x8416, 0x4)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x42, 0x0)
pwrite64(r1, &(0x7f0000000140), 0x0, 0x8000c61)
[ 74.278854][ T5302] Bluetooth: hci0: command tx timeout
[ 75.205405][ T5323] loop0: detected capacity change from 0 to 32768
[ 75.226263][ T5323] BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5323)
[ 75.237109][ T5323] BTRFS info (device loop0): first mount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
[ 75.241739][ T5323] BTRFS info (device loop0): using crc32c (crc32c-lib) checksum algorithm
[ 75.928610][ T1043] ODEBUG: Out of memory. ODEBUG disabled
[ 75.955083][ T31] ODEBUG: object ffffc900005278c0 is on stack ffffc90000520000, but NOT annotated.
[ 75.955602][ T31]
[ 75.955609][ T31] ======================================================
[ 75.955613][ T31] WARNING: possible circular locking dependency detected
[ 75.955618][ T31] syzkaller #0 Not tainted
[ 75.955623][ T31] ------------------------------------------------------
[ 75.955627][ T31] kworker/u4:2/31 is trying to acquire lock:
[ 75.955633][ T31] ffffffff8e54c700 (console_owner){....}-{0:0}, at: console_flush_all+0x123/0xb20
[ 75.955779][ T31]
[ 75.955779][ T31] but task is already holding lock:
[ 75.955783][ T31] ffffffff9a29ded0 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x83/0x580
[ 75.955847][ T31]
[ 75.955847][ T31] which lock already depends on the new lock.
[ 75.955847][ T31]
[ 75.955851][ T31]
[ 75.955851][ T31] the existing dependency chain (in reverse order) is:
[ 75.955855][ T31]
[ 75.955855][ T31] -> #4 (&obj_hash[i].lock){-.-.}-{2:2}:
[ 75.955869][ T31] _raw_spin_lock_irqsave+0x40/0x60
[ 75.955932][ T31] debug_object_activate+0x83/0x580
[ 75.955941][ T31] insert_work+0x35/0x330
[ 75.955953][ T31] __queue_work+0xccf/0xf90
[ 75.955962][ T31] queue_work_on+0x106/0x1d0
[ 75.955970][ T31] start_poll_synchronize_rcu_expedited+0xfc/0x140
[ 75.955983][ T31] rcu_init+0x142/0x1c0
[ 75.955996][ T31] start_kernel+0x189/0x3d0
[ 75.956010][ T31] x86_64_start_reservations+0x24/0x30
[ 75.956022][ T31] x86_64_start_kernel+0x143/0x1c0
[ 75.956033][ T31] common_startup_64+0x13e/0x147
[ 75.956069][ T31]
[ 75.956069][ T31] -> #3 (&pool->lock){-.-.}-{2:2}:
[ 75.956083][ T31] _raw_spin_lock+0x2e/0x40
[ 75.956103][ T31] __queue_work+0x7ea/0xf90
[ 75.956111][ T31] queue_work_on+0x106/0x1d0
[ 75.956119][ T31] rpm_suspend+0xe85/0x1700
[ 75.956133][ T31] __pm_runtime_idle+0x12f/0x1a0
[ 75.956146][ T31] __device_attach+0x34f/0x450
[ 75.956160][ T31] device_initial_probe+0xa1/0xd0
[ 75.956173][ T31] bus_probe_device+0x12a/0x220
[ 75.956183][ T31] device_add+0x7b6/0xb70
[ 75.956195][ T31] serial_base_port_add+0x18f/0x260
[ 75.956208][ T31] serial_core_register_port+0x375/0x28b0
[ 75.956222][ T31] serial8250_register_8250_port+0x1658/0x1fd0
[ 75.956236][ T31] serial_pnp_probe+0x568/0x7f0
[ 75.956249][ T31] pnp_device_probe+0x30b/0x4c0
[ 75.956263][ T31] really_probe+0x267/0xaf0
[ 75.956271][ T31] __driver_probe_device+0x18c/0x320
[ 75.956285][ T31] driver_probe_device+0x4f/0x240
[ 75.956294][ T31] __driver_attach+0x349/0x640
[ 75.956307][ T31] bus_for_each_dev+0x23b/0x2c0
[ 75.956318][ T31] bus_add_driver+0x345/0x670
[ 75.956328][ T31] driver_register+0x23a/0x320
[ 75.956337][ T31] serial8250_init+0x8f/0x160
[ 75.956349][ T31] do_one_initcall+0x250/0x840
[ 75.956361][ T31] do_initcall_level+0x104/0x190
[ 75.956370][ T31] do_initcalls+0x59/0xa0
[ 75.956378][ T31] kernel_init_freeable+0x2a6/0x3d0
[ 75.956386][ T31] kernel_init+0x1d/0x1d0
[ 75.956398][ T31] ret_from_fork+0x51b/0xa40
[ 75.956407][ T31] ret_from_fork_asm+0x1a/0x30
[ 75.956419][ T31]
[ 75.956419][ T31] -> #2 (&dev->power.lock){-...}-{3:3}:
[ 75.956433][ T31] _raw_spin_lock_irqsave+0x40/0x60
[ 75.956464][ T31] __pm_runtime_resume+0x10f/0x180
[ 75.956477][ T31] __uart_start+0x171/0x460
[ 75.956491][ T31] uart_write+0x265/0xa10
[ 75.956498][ T31] n_tty_write+0xd84/0x12a0
[ 75.956510][ T31] file_tty_write+0x559/0xa20
[ 75.956523][ T31] vfs_write+0x61d/0xb90
[ 75.956535][ T31] ksys_write+0x150/0x270
[ 75.956546][ T31] do_syscall_64+0xe2/0xf80
[ 75.956556][ T31] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 75.956566][ T31]
[ 75.956566][ T31] -> #1 (&port_lock_key){-...}-{3:3}:
[ 75.956580][ T31] _raw_spin_lock_irqsave+0x40/0x60
[ 75.956593][ T31] serial8250_console_write+0x150/0x1ba0
[ 75.956603][ T31] console_flush_all+0x718/0xb20
[ 75.956612][ T31] console_unlock+0xd1/0x1c0
[ 75.956620][ T31] vprintk_emit+0x485/0x560
[ 75.956629][ T31] _printk+0xdd/0x130
[ 75.956643][ T31] register_console+0xbc2/0xfa0
[ 75.956653][ T31] univ8250_console_init+0x3a/0x70
[ 75.956665][ T31] console_init+0xfc/0x3e0
[ 75.956676][ T31] start_kernel+0x226/0x3d0
[ 75.956690][ T31] x86_64_start_reservations+0x24/0x30
[ 75.956703][ T31] x86_64_start_kernel+0x143/0x1c0
[ 75.956714][ T31] common_startup_64+0x13e/0x147
[ 75.956725][ T31]
[ 75.956725][ T31] -> #0 (console_owner){....}-{0:0}:
[ 75.956739][ T31] __lock_acquire+0x15a5/0x2cf0
[ 75.956753][ T31] lock_acquire+0x106/0x330
[ 75.956766][ T31] console_flush_all+0x6c1/0xb20
[ 75.956775][ T31] console_unlock+0xd1/0x1c0
[ 75.956784][ T31] vprintk_emit+0x485/0x560
[ 75.956792][ T31] _printk+0xdd/0x130
[ 75.956804][ T31] debug_object_activate+0x42f/0x580
[ 75.956812][ T31] __synchronize_srcu+0x2d3/0x3e0
[ 75.956825][ T31] fsnotify_mark_destroy_workfn+0x109/0x300
[ 75.956839][ T31] process_scheduled_works+0xaec/0x17a0
[ 75.956853][ T31] worker_thread+0xda6/0x1360
[ 75.956866][ T31] kthread+0x726/0x8b0
[ 75.956876][ T31] ret_from_fork+0x51b/0xa40
[ 75.956884][ T31] ret_from_fork_asm+0x1a/0x30
[ 75.956896][ T31]
[ 75.956896][ T31] other info that might help us debug this:
[ 75.956896][ T31]
[ 75.956900][ T31] Chain exists of:
[ 75.956900][ T31] console_owner --> &pool->lock --> &obj_hash[i].lock
[ 75.956900][ T31]
[ 75.956915][ T31] Possible unsafe locking scenario:
[ 75.956915][ T31]
[ 75.956919][ T31] CPU0 CPU1
[ 75.956922][ T31] ---- ----
[ 75.956925][ T31] lock(&obj_hash[i].lock);
[ 75.956932][ T31] lock(&pool->lock);
[ 75.956939][ T31] lock(&obj_hash[i].lock);
[ 75.956946][ T31] lock(console_owner);
[ 75.956953][ T31]
[ 75.956953][ T31] *** DEADLOCK ***
[ 75.956953][ T31]
[ 75.956956][ T31] 5 locks held by kworker/u4:2/31:
[ 75.956962][ T31] #0: ffff88801a879948 ((wq_completion)events_unbound#2){+.+.}-{0:0}, at: process_scheduled_works+0x9d4/0x17a0
[ 75.957010][ T31] #1: ffffc90000527bc0 ((reaper_work).work){+.+.}-{0:0}, at: process_scheduled_works+0xa0f/0x17a0
[ 75.957040][ T31] #2: ffffffff9a29ded0 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x83/0x580
[ 75.957063][ T31] #3: ffffffff8e54c760 (console_lock){+.+.}-{0:0}, at: _printk+0xdd/0x130
[ 75.957091][ T31] #4: ffffffff8e434018 (console_srcu){....}-{0:0}, at: console_flush_all+0x123/0xb20
[ 75.957126][ T31]
[ 75.957126][ T31] stack backtrace:
[ 75.957153][ T31] CPU: 0 UID: 0 PID: 31 Comm: kworker/u4:2 Not tainted syzkaller #0 PREEMPT(full)
[ 75.957165][ T31] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 75.957172][ T31] Workqueue: events_unbound fsnotify_mark_destroy_workfn
[ 75.957185][ T31] Call Trace:
[ 75.957191][ T31]
[ 75.957196][ T31] dump_stack_lvl+0xe8/0x150
[ 75.957209][ T31] print_circular_bug+0x2e1/0x300
[ 75.957222][ T31] check_noncircular+0x12e/0x150
[ 75.957233][ T31] __lock_acquire+0x15a5/0x2cf0
[ 75.957253][ T31] ? console_flush_all+0x123/0xb20
[ 75.957263][ T31] lock_acquire+0x106/0x330
[ 75.957275][ T31] ? console_flush_all+0x123/0xb20
[ 75.957287][ T31] ? do_raw_spin_unlock+0x4d/0x210
[ 75.957297][ T31] ? console_flush_all+0x123/0xb20
[ 75.957308][ T31] console_flush_all+0x6c1/0xb20
[ 75.957319][ T31] ? console_flush_all+0x123/0xb20
[ 75.957330][ T31] ? console_flush_all+0x123/0xb20
[ 75.957343][ T31] ? __pfx_console_flush_all+0x10/0x10
[ 75.957354][ T31] ? is_printk_cpu_sync_owner+0x32/0x40
[ 75.957369][ T31] console_unlock+0xd1/0x1c0
[ 75.957379][ T31] ? __pfx_console_unlock+0x10/0x10
[ 75.957389][ T31] ? _raw_spin_unlock+0x50/0x50
[ 75.957403][ T31] ? _printk+0xdd/0x130
[ 75.957418][ T31] vprintk_emit+0x485/0x560
[ 75.957429][ T31] ? __pfx_vprintk_emit+0x10/0x10
[ 75.957441][ T31] _printk+0xdd/0x130
[ 75.957456][ T31] ? __pfx__printk+0x10/0x10
[ 75.957472][ T31] debug_object_activate+0x42f/0x580
[ 75.957484][ T31] __synchronize_srcu+0x2d3/0x3e0
[ 75.957499][ T31] ? do_raw_spin_lock+0x12b/0x2f0
[ 75.957511][ T31] ? __pfx___synchronize_srcu+0x10/0x10
[ 75.957528][ T31] ? ktime_get_mono_fast_ns+0x2af/0x2d0
[ 75.957542][ T31] ? synchronize_srcu+0x295/0x2c0
[ 75.957557][ T31] fsnotify_mark_destroy_workfn+0x109/0x300
[ 75.957571][ T31] ? __pfx_fsnotify_mark_destroy_workfn+0x10/0x10
[ 75.957584][ T31] ? process_scheduled_works+0xa0f/0x17a0
[ 75.957598][ T31] ? process_scheduled_works+0xa0f/0x17a0
[ 75.957613][ T31] process_scheduled_works+0xaec/0x17a0
[ 75.957633][ T31] ? __pfx_process_scheduled_works+0x10/0x10
[ 75.957648][ T31] ? do_raw_spin_lock+0x12b/0x2f0
[ 75.957659][ T31] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 75.957670][ T31] ? schedule+0x90/0x360
[ 75.957687][ T31] worker_thread+0xda6/0x1360
[ 75.957707][ T31] kthread+0x726/0x8b0
[ 75.957719][ T31] ? __pfx_worker_thread+0x10/0x10
[ 75.957734][ T31] ? __pfx_kthread+0x10/0x10
[ 75.957745][ T31] ? _raw_spin_unlock_irq+0x23/0x50
[ 75.957759][ T31] ? __pfx_kthread+0x10/0x10
[ 75.957770][ T31] ret_from_fork+0x51b/0xa40
[ 75.957780][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 75.957795][ T31] ? __switch_to+0xc82/0x1410
[ 75.957809][ T31] ? __pfx_kthread+0x10/0x10
[ 75.957820][ T31] ret_from_fork_asm+0x1a/0x30
[ 75.957838][ T31]
[ 76.354467][ T31] ------------[ cut here ]------------
[ 76.356954][ T31] 1
[ 76.356963][ T31] WARNING: lib/debugobjects.c:655 at debug_object_activate+0x430/0x580, CPU#0: kworker/u4:2/31
[ 76.362597][ T31] Modules linked in:
[ 76.364371][ T31] CPU: 0 UID: 0 PID: 31 Comm: kworker/u4:2 Not tainted syzkaller #0 PREEMPT(full)
[ 76.368404][ T31] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 76.372817][ T31] Workqueue: events_unbound fsnotify_mark_destroy_workfn
[ 76.375782][ T31] RIP: 0010:debug_object_activate+0x430/0x580
[ 76.378385][ T31] Code: c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc ff c5 89 2d d0 d2 86 15 48 c7 c7 00 59 07 8c 48 89 de e8 c1 53 7b fc 90 <0f> 0b 90 49 81 fd 00 f0 ff ff 0f 86 a4 fd ff ff c7 44 24 04 00 00
[ 76.386592][ T31] RSP: 0018:ffffc90000527820 EFLAGS: 00010046
[ 76.389803][ T31] RAX: 0000000000000050 RBX: ffffc900005278c0 RCX: 91864fb4bb397900
[ 76.393500][ T31] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
[ 76.396734][ T31] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004
[ 76.400249][ T31] R10: dffffc0000000000 R11: fffffbfff1c7ce48 R12: ffff8880304f24e0
[ 76.404250][ T31] R13: ffff88801188ad58 R14: dffffc0000000000 R15: ffffffff8badfc40
[ 76.407584][ T31] FS: 0000000000000000(0000) GS:ffff88808ccea000(0000) knlGS:0000000000000000
[ 76.411593][ T31] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 76.414319][ T31] CR2: 00007ffdcd646f24 CR3: 000000001247a000 CR4: 0000000000352ef0
[ 76.417690][ T31] Call Trace:
[ 76.419217][ T31]
[ 76.420476][ T31] __synchronize_srcu+0x2d3/0x3e0
[ 76.422646][ T31] ? do_raw_spin_lock+0x12b/0x2f0
[ 76.424817][ T31] ? __pfx___synchronize_srcu+0x10/0x10
[ 76.427234][ T31] ? ktime_get_mono_fast_ns+0x2af/0x2d0
[ 76.429631][ T31] ? synchronize_srcu+0x295/0x2c0
[ 76.431521][ T31] fsnotify_mark_destroy_workfn+0x109/0x300
[ 76.433974][ T31] ? __pfx_fsnotify_mark_destroy_workfn+0x10/0x10
[ 76.436603][ T31] ? process_scheduled_works+0xa0f/0x17a0
[ 76.438755][ T31] ? process_scheduled_works+0xa0f/0x17a0
[ 76.440917][ T31] process_scheduled_works+0xaec/0x17a0
[ 76.442979][ T31] ? __pfx_process_scheduled_works+0x10/0x10
[ 76.445240][ T31] ? do_raw_spin_lock+0x12b/0x2f0
[ 76.447045][ T31] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 76.449103][ T31] ? schedule+0x90/0x360
[ 76.450791][ T31] worker_thread+0xda6/0x1360
[ 76.452553][ T31] kthread+0x726/0x8b0
[ 76.454006][ T31] ? __pfx_worker_thread+0x10/0x10
[ 76.455946][ T31] ? __pfx_kthread+0x10/0x10
[ 76.457822][ T31] ? _raw_spin_unlock_irq+0x23/0x50
[ 76.459942][ T31] ? __pfx_kthread+0x10/0x10
[ 76.461830][ T31] ret_from_fork+0x51b/0xa40
[ 76.463647][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 76.465723][ T31] ? __switch_to+0xc82/0x1410
[ 76.467684][ T31] ? __pfx_kthread+0x10/0x10
[ 76.469453][ T31] ret_from_fork_asm+0x1a/0x30
[ 76.471530][ T31]
[ 76.472873][ T31] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 76.475959][ T31] CPU: 0 UID: 0 PID: 31 Comm: kworker/u4:2 Not tainted syzkaller #0 PREEMPT(full)
[ 76.479746][ T31] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 76.484193][ T31] Workqueue: events_unbound fsnotify_mark_destroy_workfn
[ 76.487224][ T31] Call Trace:
[ 76.488725][ T31]
[ 76.489986][ T31] vpanic+0x1e0/0x670
[ 76.491641][ T31] panic+0xc5/0xd0
[ 76.493212][ T31] ? __pfx_panic+0x10/0x10
[ 76.495047][ T31] ? ret_from_fork_asm+0x1a/0x30
[ 76.497028][ T31] __warn+0x315/0x4a0
[ 76.498677][ T31] ? debug_object_activate+0x430/0x580
[ 76.500894][ T31] ? debug_object_activate+0x430/0x580
[ 76.503086][ T31] __report_bug+0x29a/0x540
[ 76.505199][ T31] ? debug_object_activate+0x430/0x580
[ 76.507485][ T31] ? __pfx___report_bug+0x10/0x10
[ 76.509508][ T31] ? __wake_up_klogd+0xe6/0x120
[ 76.511478][ T31] ? vprintk_emit+0x4eb/0x560
[ 76.513437][ T31] ? __pfx_vprintk_emit+0x10/0x10
[ 76.515502][ T31] ? debug_object_activate+0x430/0x580
[ 76.517566][ T31] report_bug+0x16a/0x220
[ 76.519513][ T31] ? debug_object_activate+0x430/0x580
[ 76.522065][ T31] ? debug_object_activate+0x432/0x580
[ 76.524469][ T31] handle_bug+0x98/0x200
[ 76.526379][ T31] exc_invalid_op+0x1a/0x50
[ 76.528371][ T31] asm_exc_invalid_op+0x1a/0x20
[ 76.530362][ T31] RIP: 0010:debug_object_activate+0x430/0x580
[ 76.532982][ T31] Code: c4 28 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc ff c5 89 2d d0 d2 86 15 48 c7 c7 00 59 07 8c 48 89 de e8 c1 53 7b fc 90 <0f> 0b 90 49 81 fd 00 f0 ff ff 0f 86 a4 fd ff ff c7 44 24 04 00 00
[ 76.541564][ T31] RSP: 0018:ffffc90000527820 EFLAGS: 00010046
[ 76.544020][ T31] RAX: 0000000000000050 RBX: ffffc900005278c0 RCX: 91864fb4bb397900
[ 76.546826][ T31] RDX: 0000000000000000 RSI: 0000000080000001 RDI: 0000000000000000
[ 76.549554][ T31] RBP: 0000000000000001 R08: 0000000000000003 R09: 0000000000000004
[ 76.552548][ T31] R10: dffffc0000000000 R11: fffffbfff1c7ce48 R12: ffff8880304f24e0
[ 76.555526][ T31] R13: ffff88801188ad58 R14: dffffc0000000000 R15: ffffffff8badfc40
[ 76.559064][ T31] __synchronize_srcu+0x2d3/0x3e0
[ 76.561388][ T31] ? do_raw_spin_lock+0x12b/0x2f0
[ 76.563570][ T31] ? __pfx___synchronize_srcu+0x10/0x10
[ 76.565970][ T31] ? ktime_get_mono_fast_ns+0x2af/0x2d0
[ 76.568450][ T31] ? synchronize_srcu+0x295/0x2c0
[ 76.570584][ T31] fsnotify_mark_destroy_workfn+0x109/0x300
[ 76.573081][ T31] ? __pfx_fsnotify_mark_destroy_workfn+0x10/0x10
[ 76.575803][ T31] ? process_scheduled_works+0xa0f/0x17a0
[ 76.578333][ T31] ? process_scheduled_works+0xa0f/0x17a0
[ 76.580833][ T31] process_scheduled_works+0xaec/0x17a0
[ 76.583015][ T31] ? __pfx_process_scheduled_works+0x10/0x10
[ 76.585159][ T31] ? do_raw_spin_lock+0x12b/0x2f0
[ 76.586978][ T31] ? __pfx_do_raw_spin_lock+0x10/0x10
[ 76.588952][ T31] ? schedule+0x90/0x360
[ 76.590793][ T31] worker_thread+0xda6/0x1360
[ 76.592935][ T31] kthread+0x726/0x8b0
[ 76.594745][ T31] ? __pfx_worker_thread+0x10/0x10
[ 76.597047][ T31] ? __pfx_kthread+0x10/0x10
[ 76.599063][ T31] ? _raw_spin_unlock_irq+0x23/0x50
[ 76.601377][ T31] ? __pfx_kthread+0x10/0x10
[ 76.603439][ T31] ret_from_fork+0x51b/0xa40
[ 76.605521][ T31] ? __pfx_ret_from_fork+0x10/0x10
[ 76.607802][ T31] ? __switch_to+0xc82/0x1410
[ 76.609870][ T31] ? __pfx_kthread+0x10/0x10
[ 76.611882][ T31] ret_from_fork_asm+0x1a/0x30
[ 76.614093][ T31]
[ 76.615863][ T31] Kernel Offset: disabled
[ 76.617859][ T31] Rebooting in 86400 seconds..