program: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) openat(0xffffffffffffff9c, &(0x7f000000c380)='./file0\x00', 0x40, 0x1) r1 = openat$fuse(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0) mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', &(0x7f0000000100), 0x0, &(0x7f0000002140)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r1, @ANYBLOB=',rootmode=00000000000000000100000,user_id=', @ANYRESDEC=0x0, @ANYBLOB=',group_id=', @ANYRESDEC=0x0]) read$FUSE(r1, &(0x7f00000021c0)={0x2020, 0x0, 0x0}, 0x2020) write$FUSE_INIT(r1, &(0x7f0000000040)={0x50, 0x0, r2, {0x7, 0x1f, 0x0, 0x10400}}, 0x50) syz_fuse_handle_req(r1, &(0x7f0000008380)="000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000dc4e00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000ba045abcd5dfc67d000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000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00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001354c4b600", 0x2000, &(0x7f00000062c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000480)={0x20, 0x0, 0x88}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) syz_fuse_handle_req(r1, &(0x7f0000004200)="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", 0x2000, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000540)={0x78, 0x0, 0x0, {0x0, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200000, 0x8000}}}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r3 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x101001, 0x0) writev(r3, &(0x7f0000000000)=[{&(0x7f0000000cc0)="e1", 0x56000}], 0x1) close(r1) close_range(r0, 0xffffffffffffffff, 0x0) bpf$BPF_RAW_TRACEPOINT_OPEN(0x11, 0x0, 0x0) [ 68.742599][ T4672] Bluetooth: hci0: command tx timeout [ 68.982860][ T5322] [ 68.983926][ T5322] ===================================================== [ 68.986623][ T5322] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected [ 68.989492][ T5322] syzkaller #0 Not tainted [ 68.991283][ T5322] ----------------------------------------------------- [ 68.994184][ T5322] syz.0.0/5322 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 68.997352][ T5322] ffffffff99a23710 (&p->sequence){+.-.}-{0:0}, at: __fprop_add_percpu_max+0x10d/0x210 [ 69.001380][ T5322] [ 69.001380][ T5322] and this task is already holding: [ 69.004538][ T5322] ffff88804c4a8240 (&xa->xa_lock#12){-...}-{3:3}, at: __folio_end_writeback+0x1da/0x950 [ 69.008696][ T5322] which would create a new lock dependency: [ 69.011271][ T5322] (&xa->xa_lock#12){-...}-{3:3} -> (&p->sequence){+.-.}-{0:0} [ 69.014561][ T5322] [ 69.014561][ T5322] but this new dependency connects a HARDIRQ-irq-safe lock: [ 69.018677][ T5322] (&xa->xa_lock#12){-...}-{3:3} [ 69.018707][ T5322] [ 69.018707][ T5322] ... which became HARDIRQ-irq-safe at: [ 69.024313][ T5322] lock_acquire+0x120/0x360 [ 69.026361][ T5322] _raw_spin_lock_irqsave+0xa7/0xf0 [ 69.028752][ T5322] __folio_end_writeback+0x1da/0x950 [ 69.031143][ T5322] folio_end_writeback_no_dropbehind+0x151/0x290 [ 69.033965][ T5322] folio_end_writeback+0xea/0x220 [ 69.036204][ T5322] end_bio_bh_io_sync+0xbd/0x120 [ 69.038468][ T5322] blk_update_request+0x57e/0xe60 [ 69.040745][ T5322] scsi_end_request+0x7c/0x830 [ 69.042985][ T5322] scsi_io_completion+0x131/0x390 [ 69.045331][ T5322] ata_qc_complete_multiple+0x1ae/0x280 [ 69.047625][ T5322] ahci_handle_port_interrupt+0x3d5/0x610 [ 69.050060][ T5322] ahci_handle_port_intr+0x19f/0x2e0 [ 69.052259][ T5322] ahci_single_level_irq_intr+0x9b/0xe0 [ 69.054539][ T5322] __handle_irq_event_percpu+0x295/0xab0 [ 69.056847][ T5322] handle_irq_event+0x8b/0x1e0 [ 69.058791][ T5322] handle_edge_irq+0x23b/0xa10 [ 69.060870][ T5322] __common_interrupt+0x13e/0x1f0 [ 69.063130][ T5322] common_interrupt+0xb6/0xe0 [ 69.065290][ T5322] asm_common_interrupt+0x26/0x40 [ 69.067565][ T5322] filter_irq_stacks+0x5f/0xa0 [ 69.069680][ T5322] stack_depot_save_flags+0x40/0x860 [ 69.072033][ T5322] kasan_save_track+0x4f/0x80 [ 69.074159][ T5322] __kasan_slab_alloc+0x6c/0x80 [ 69.076382][ T5322] kmem_cache_alloc_noprof+0x367/0x6e0 [ 69.078774][ T5322] mempool_alloc_noprof+0x1a4/0x510 [ 69.081043][ T5322] __sg_alloc_table+0x1b9/0x700 [ 69.083054][ T5322] sg_alloc_table_chained+0x85/0x1e0 [ 69.085209][ T5322] scsi_alloc_sgtables+0x291/0xc40 [ 69.087232][ T5322] sd_init_command+0x558/0x1ff0 [ 69.089231][ T5322] scsi_queue_rq+0x176e/0x2cc0 [ 69.091228][ T5322] blk_mq_dispatch_rq_list+0x4c0/0x1900 [ 69.093448][ T5322] __blk_mq_sched_dispatch_requests+0xda4/0x1570 [ 69.095845][ T5322] blk_mq_sched_dispatch_requests+0xd7/0x190 [ 69.098403][ T5322] blk_mq_run_work_fn+0x22e/0x300 [ 69.100547][ T5322] process_scheduled_works+0xade/0x17b0 [ 69.103010][ T5322] worker_thread+0x8a0/0xda0 [ 69.105124][ T5322] kthread+0x70e/0x8a0 [ 69.106990][ T5322] ret_from_fork+0x4bc/0x870 [ 69.108956][ T5322] ret_from_fork_asm+0x1a/0x30 [ 69.111083][ T5322] [ 69.111083][ T5322] to a HARDIRQ-irq-unsafe lock: [ 69.114067][ T5322] (&p->sequence){+.-.}-{0:0} [ 69.114087][ T5322] [ 69.114087][ T5322] ... which became HARDIRQ-irq-unsafe at: [ 69.119212][ T5322] ... [ 69.119220][ T5322] lock_acquire+0x120/0x360 [ 69.122166][ T5322] fprop_new_period+0x1a3/0x3a0 [ 69.124097][ T5322] writeout_period+0x8b/0x130 [ 69.126011][ T5322] call_timer_fn+0x17e/0x5f0 [ 69.127921][ T5322] __run_timer_base+0x61a/0x860 [ 69.129936][ T5322] run_timer_softirq+0x103/0x180 [ 69.132045][ T5322] handle_softirqs+0x283/0x870 [ 69.134156][ T5322] __irq_exit_rcu+0xca/0x1f0 [ 69.136194][ T5322] irq_exit_rcu+0x9/0x30 [ 69.137840][ T5322] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 69.140302][ T5322] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 69.142871][ T5322] pv_native_safe_halt+0x13/0x20 [ 69.145076][ T5322] default_idle+0x13/0x20 [ 69.147036][ T5322] default_idle_call+0x73/0xb0 [ 69.148990][ T5322] do_idle+0x1e7/0x510 [ 69.150613][ T5322] cpu_startup_entry+0x44/0x60 [ 69.152502][ T5322] rest_init+0x2de/0x300 [ 69.154199][ T5322] start_kernel+0x3ae/0x410 [ 69.156067][ T5322] x86_64_start_reservations+0x24/0x30 [ 69.158329][ T5322] x86_64_start_kernel+0x143/0x1c0 [ 69.160313][ T5322] common_startup_64+0x13e/0x147 [ 69.162241][ T5322] [ 69.162241][ T5322] other info that might help us debug this: [ 69.162241][ T5322] [ 69.166486][ T5322] Possible interrupt unsafe locking scenario: [ 69.166486][ T5322] [ 69.169969][ T5322] CPU0 CPU1 [ 69.172430][ T5322] ---- ---- [ 69.174786][ T5322] lock(&p->sequence); [ 69.176566][ T5322] local_irq_disable(); [ 69.179384][ T5322] lock(&xa->xa_lock#12); [ 69.182282][ T5322] lock(&p->sequence); [ 69.185183][ T5322] [ 69.186729][ T5322] lock(&xa->xa_lock#12); [ 69.188757][ T5322] [ 69.188757][ T5322] *** DEADLOCK *** [ 69.188757][ T5322] [ 69.192295][ T5322] 2 locks held by syz.0.0/5322: [ 69.194448][ T5322] #0: ffff88804c4a8638 (&fi->lock){+.+.}-{3:3}, at: fuse_iomap_writeback_range+0x818/0x1800 [ 69.198812][ T5322] #1: ffff88804c4a8240 (&xa->xa_lock#12){-...}-{3:3}, at: __folio_end_writeback+0x1da/0x950 [ 69.203141][ T5322] [ 69.203141][ T5322] the dependencies between HARDIRQ-irq-safe lock and the holding lock: [ 69.207518][ T5322] -> (&xa->xa_lock#12){-...}-{3:3} { [ 69.209690][ T5322] IN-HARDIRQ-W at: [ 69.211356][ T5322] lock_acquire+0x120/0x360 [ 69.213837][ T5322] _raw_spin_lock_irqsave+0xa7/0xf0 [ 69.216724][ T5322] __folio_end_writeback+0x1da/0x950 [ 69.219670][ T5322] folio_end_writeback_no_dropbehind+0x151/0x290 [ 69.223029][ T5322] folio_end_writeback+0xea/0x220 [ 69.225785][ T5322] end_bio_bh_io_sync+0xbd/0x120 [ 69.228194][ T5322] blk_update_request+0x57e/0xe60 [ 69.230705][ T5322] scsi_end_request+0x7c/0x830 [ 69.233162][ T5322] scsi_io_completion+0x131/0x390 [ 69.235940][ T5322] ata_qc_complete_multiple+0x1ae/0x280 [ 69.238976][ T5322] ahci_handle_port_interrupt+0x3d5/0x610 [ 69.242143][ T5322] ahci_handle_port_intr+0x19f/0x2e0 [ 69.245142][ T5322] ahci_single_level_irq_intr+0x9b/0xe0 [ 69.248656][ T5322] __handle_irq_event_percpu+0x295/0xab0 [ 69.251738][ T5322] handle_irq_event+0x8b/0x1e0 [ 69.254591][ T5322] handle_edge_irq+0x23b/0xa10 [ 69.257333][ T5322] __common_interrupt+0x13e/0x1f0 [ 69.260206][ T5322] common_interrupt+0xb6/0xe0 [ 69.263015][ T5322] asm_common_interrupt+0x26/0x40 [ 69.265923][ T5322] filter_irq_stacks+0x5f/0xa0 [ 69.268741][ T5322] stack_depot_save_flags+0x40/0x860 [ 69.271675][ T5322] kasan_save_track+0x4f/0x80 [ 69.274485][ T5322] __kasan_slab_alloc+0x6c/0x80 [ 69.277207][ T5322] kmem_cache_alloc_noprof+0x367/0x6e0 [ 69.280081][ T5322] mempool_alloc_noprof+0x1a4/0x510 [ 69.283101][ T5322] __sg_alloc_table+0x1b9/0x700 [ 69.285829][ T5322] sg_alloc_table_chained+0x85/0x1e0 [ 69.288707][ T5322] scsi_alloc_sgtables+0x291/0xc40 [ 69.291531][ T5322] sd_init_command+0x558/0x1ff0 [ 69.294353][ T5322] scsi_queue_rq+0x176e/0x2cc0 [ 69.297124][ T5322] blk_mq_dispatch_rq_list+0x4c0/0x1900 [ 69.300142][ T5322] __blk_mq_sched_dispatch_requests+0xda4/0x1570 [ 69.303540][ T5322] blk_mq_sched_dispatch_requests+0xd7/0x190 [ 69.306762][ T5322] blk_mq_run_work_fn+0x22e/0x300 [ 69.309791][ T5322] process_scheduled_works+0xade/0x17b0 [ 69.312847][ T5322] worker_thread+0x8a0/0xda0 [ 69.315498][ T5322] kthread+0x70e/0x8a0 [ 69.317879][ T5322] ret_from_fork+0x4bc/0x870 [ 69.320380][ T5322] ret_from_fork_asm+0x1a/0x30 [ 69.322983][ T5322] INITIAL USE at: [ 69.324642][ T5322] lock_acquire+0x120/0x360 [ 69.327149][ T5322] _raw_spin_lock_irq+0xa2/0xf0 [ 69.329808][ T5322] shmem_add_to_page_cache+0x72d/0xba0 [ 69.332699][ T5322] shmem_alloc_and_add_folio+0x846/0xf60 [ 69.335788][ T5322] shmem_get_folio_gfp+0x59d/0x1660 [ 69.338792][ T5322] shmem_read_folio_gfp+0x8a/0xe0 [ 69.341671][ T5322] drm_gem_get_pages+0x223/0xa20 [ 69.344438][ T5322] drm_gem_shmem_get_pages_locked+0x201/0x440 [ 69.347765][ T5322] drm_gem_shmem_pin_locked+0x22c/0x460 [ 69.350855][ T5322] drm_gem_shmem_vmap_locked+0x46b/0x790 [ 69.354052][ T5322] drm_gem_vmap+0x107/0x1d0 [ 69.356590][ T5322] drm_client_buffer_vmap+0x43/0x80 [ 69.359380][ T5322] drm_fbdev_shmem_driver_fbdev_probe+0x258/0x900 [ 69.362838][ T5322] __drm_fb_helper_initial_config_and_unlock+0x1239/0x18a0 [ 69.366552][ T5322] drm_fbdev_client_hotplug+0x16c/0x230 [ 69.369649][ T5322] drm_client_register+0x16f/0x210 [ 69.372544][ T5322] drm_fbdev_client_setup+0x19f/0x3f0 [ 69.375564][ T5322] drm_client_setup+0x107/0x220 [ 69.378310][ T5322] vkms_init+0x3e0/0x4b0 [ 69.380943][ T5322] do_one_initcall+0x233/0x820 [ 69.383604][ T5322] do_initcall_level+0x104/0x190 [ 69.386299][ T5322] do_initcalls+0x59/0xa0 [ 69.388675][ T5322] kernel_init_freeable+0x334/0x4b0 [ 69.391596][ T5322] kernel_init+0x1d/0x1d0 [ 69.394213][ T5322] ret_from_fork+0x4bc/0x870 [ 69.396901][ T5322] ret_from_fork_asm+0x1a/0x30 [ 69.399647][ T5322] } [ 69.400771][ T5322] ... key at: [] xa_init_flags.__key+0x0/0x20 [ 69.404210][ T5322] [ 69.404210][ T5322] the dependencies between the lock to be acquired [ 69.404218][ T5322] and HARDIRQ-irq-unsafe lock: [ 69.409892][ T5322] -> (&p->sequence){+.-.}-{0:0} { [ 69.412078][ T5322] HARDIRQ-ON-W at: [ 69.413885][ T5322] lock_acquire+0x120/0x360 [ 69.416486][ T5322] fprop_new_period+0x1a3/0x3a0 [ 69.419148][ T5322] writeout_period+0x8b/0x130 [ 69.421884][ T5322] call_timer_fn+0x17e/0x5f0 [ 69.424429][ T5322] __run_timer_base+0x61a/0x860 [ 69.427049][ T5322] run_timer_softirq+0x103/0x180 [ 69.429889][ T5322] handle_softirqs+0x283/0x870 [ 69.432410][ T5322] __irq_exit_rcu+0xca/0x1f0 [ 69.435012][ T5322] irq_exit_rcu+0x9/0x30 [ 69.437562][ T5322] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 69.440574][ T5322] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 69.443553][ T5322] pv_native_safe_halt+0x13/0x20 [ 69.446216][ T5322] default_idle+0x13/0x20 [ 69.448770][ T5322] default_idle_call+0x73/0xb0 [ 69.451515][ T5322] do_idle+0x1e7/0x510 [ 69.453916][ T5322] cpu_startup_entry+0x44/0x60 [ 69.456576][ T5322] rest_init+0x2de/0x300 [ 69.459130][ T5322] start_kernel+0x3ae/0x410 [ 69.461748][ T5322] x86_64_start_reservations+0x24/0x30 [ 69.464824][ T5322] x86_64_start_kernel+0x143/0x1c0 [ 69.467923][ T5322] common_startup_64+0x13e/0x147 [ 69.470816][ T5322] IN-SOFTIRQ-W at: [ 69.472644][ T5322] lock_acquire+0x120/0x360 [ 69.475376][ T5322] fprop_new_period+0x1a3/0x3a0 [ 69.478321][ T5322] writeout_period+0x8b/0x130 [ 69.480994][ T5322] call_timer_fn+0x17e/0x5f0 [ 69.483781][ T5322] __run_timer_base+0x61a/0x860 [ 69.486627][ T5322] run_timer_softirq+0x103/0x180 [ 69.489533][ T5322] handle_softirqs+0x283/0x870 [ 69.492300][ T5322] __irq_exit_rcu+0xca/0x1f0 [ 69.495009][ T5322] irq_exit_rcu+0x9/0x30 [ 69.497573][ T5322] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 69.500761][ T5322] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 69.504049][ T5322] pv_native_safe_halt+0x13/0x20 [ 69.506943][ T5322] default_idle+0x13/0x20 [ 69.509532][ T5322] default_idle_call+0x73/0xb0 [ 69.512291][ T5322] do_idle+0x1e7/0x510 [ 69.514819][ T5322] cpu_startup_entry+0x44/0x60 [ 69.517472][ T5322] rest_init+0x2de/0x300 [ 69.519770][ T5322] start_kernel+0x3ae/0x410 [ 69.522260][ T5322] x86_64_start_reservations+0x24/0x30 [ 69.525174][ T5322] x86_64_start_kernel+0x143/0x1c0 [ 69.527807][ T5322] common_startup_64+0x13e/0x147 [ 69.530581][ T5322] INITIAL USE at: [ 69.532239][ T5322] lock_acquire+0x120/0x360 [ 69.534664][ T5322] fprop_new_period+0x1a3/0x3a0 [ 69.537402][ T5322] writeout_period+0x8b/0x130 [ 69.540026][ T5322] call_timer_fn+0x17e/0x5f0 [ 69.542668][ T5322] __run_timer_base+0x61a/0x860 [ 69.545416][ T5322] run_timer_softirq+0x103/0x180 [ 69.548191][ T5322] handle_softirqs+0x283/0x870 [ 69.550941][ T5322] __irq_exit_rcu+0xca/0x1f0 [ 69.553639][ T5322] irq_exit_rcu+0x9/0x30 [ 69.556235][ T5322] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 69.559375][ T5322] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 69.562691][ T5322] pv_native_safe_halt+0x13/0x20 [ 69.565538][ T5322] default_idle+0x13/0x20 [ 69.568089][ T5322] default_idle_call+0x73/0xb0 [ 69.570792][ T5322] do_idle+0x1e7/0x510 [ 69.573236][ T5322] cpu_startup_entry+0x44/0x60 [ 69.575897][ T5322] rest_init+0x2de/0x300 [ 69.578527][ T5322] start_kernel+0x3ae/0x410 [ 69.581152][ T5322] x86_64_start_reservations+0x24/0x30 [ 69.584174][ T5322] x86_64_start_kernel+0x143/0x1c0 [ 69.587038][ T5322] common_startup_64+0x13e/0x147 [ 69.589828][ T5322] INITIAL READ USE at: [ 69.591753][ T5322] lock_acquire+0x120/0x360 [ 69.594665][ T5322] fprop_fraction_percpu+0x170/0x400 [ 69.597908][ T5322] __wb_calc_thresh+0x119/0x4a0 [ 69.600936][ T5322] wb_over_bg_thresh+0x154/0x3d0 [ 69.604052][ T5322] wb_workfn+0xb1c/0xef0 [ 69.606764][ T5322] process_scheduled_works+0xade/0x17b0 [ 69.610045][ T5322] worker_thread+0x8a0/0xda0 [ 69.612868][ T5322] kthread+0x70e/0x8a0 [ 69.615428][ T5322] ret_from_fork+0x4bc/0x870 [ 69.618259][ T5322] ret_from_fork_asm+0x1a/0x30 [ 69.621241][ T5322] } [ 69.622364][ T5322] ... key at: [] fprop_global_init.__key.1+0x0/0x20 [ 69.626081][ T5322] ... acquired at: [ 69.627720][ T5322] lock_acquire+0x120/0x360 [ 69.629801][ T5322] fprop_fraction_percpu+0x130/0x400 [ 69.632219][ T5322] __fprop_add_percpu_max+0x10d/0x210 [ 69.634654][ T5322] __wb_writeout_add+0xa5/0x290 [ 69.636910][ T5322] __folio_end_writeback+0x4d5/0x950 [ 69.639251][ T5322] folio_end_writeback_no_dropbehind+0x151/0x290 [ 69.642149][ T5322] folio_end_writeback+0xea/0x220 [ 69.644476][ T5322] fuse_flush_writepages+0x6c8/0x900 [ 69.646963][ T5322] fuse_iomap_writeback_range+0x923/0x1800 [ 69.649550][ T5322] iomap_writeback_folio+0xe75/0x1c80 [ 69.651725][ T5322] iomap_writepages+0x162/0x2d0 [ 69.653779][ T5322] fuse_writepages+0x2ad/0x380 [ 69.655789][ T5322] do_writepages+0x32b/0x550 [ 69.657773][ T5322] __writeback_single_inode+0x145/0xff0 [ 69.659989][ T5322] writeback_single_inode+0x1f9/0x6a0 [ 69.662129][ T5322] write_inode_now+0x160/0x1d0 [ 69.664229][ T5322] fuse_flush+0x266/0x800 [ 69.666230][ T5322] filp_flush+0xba/0x190 [ 69.668244][ T5322] filp_close+0x1d/0x40 [ 69.670156][ T5322] __se_sys_close_range+0x359/0x650 [ 69.672406][ T5322] do_syscall_64+0xfa/0xfa0 [ 69.674433][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.677016][ T5322] [ 69.678104][ T5322] [ 69.678104][ T5322] stack backtrace: [ 69.680719][ T5322] CPU: 0 UID: 0 PID: 5322 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 69.680734][ T5322] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 69.680741][ T5322] Call Trace: [ 69.680749][ T5322] [ 69.680754][ T5322] dump_stack_lvl+0x189/0x250 [ 69.680772][ T5322] ? __pfx_dump_stack_lvl+0x10/0x10 [ 69.680784][ T5322] ? __pfx__printk+0x10/0x10 [ 69.680799][ T5322] validate_chain+0x1f05/0x2140 [ 69.680821][ T5322] __lock_acquire+0xab9/0xd20 [ 69.680834][ T5322] ? __fprop_add_percpu_max+0x10d/0x210 [ 69.680846][ T5322] lock_acquire+0x120/0x360 [ 69.680857][ T5322] ? __fprop_add_percpu_max+0x10d/0x210 [ 69.680870][ T5322] ? __fprop_add_percpu_max+0x10d/0x210 [ 69.680882][ T5322] fprop_fraction_percpu+0x130/0x400 [ 69.680902][ T5322] ? __fprop_add_percpu_max+0x10d/0x210 [ 69.680916][ T5322] ? __pfx_fprop_fraction_percpu+0x10/0x10 [ 69.680931][ T5322] ? xas_load+0x593/0x5b0 [ 69.680943][ T5322] __fprop_add_percpu_max+0x10d/0x210 [ 69.680955][ T5322] ? percpu_counter_add_batch+0xea/0x1e0 [ 69.680977][ T5322] __wb_writeout_add+0xa5/0x290 [ 69.680994][ T5322] __folio_end_writeback+0x4d5/0x950 [ 69.681010][ T5322] ? __pfx___folio_end_writeback+0x10/0x10 [ 69.681021][ T5322] ? fuse_simple_background+0xdc4/0x1040 [ 69.681035][ T5322] ? kmem_cache_free+0x19b/0x690 [ 69.681051][ T5322] folio_end_writeback_no_dropbehind+0x151/0x290 [ 69.681068][ T5322] folio_end_writeback+0xea/0x220 [ 69.681083][ T5322] fuse_flush_writepages+0x6c8/0x900 [ 69.681099][ T5322] ? __pfx___folio_start_writeback+0x10/0x10 [ 69.681113][ T5322] fuse_iomap_writeback_range+0x923/0x1800 [ 69.681133][ T5322] iomap_writeback_folio+0xe75/0x1c80 [ 69.681147][ T5322] ? rcu_is_watching+0x15/0xb0 [ 69.681163][ T5322] iomap_writepages+0x162/0x2d0 [ 69.681178][ T5322] ? __pfx_iomap_writepages+0x10/0x10 [ 69.681193][ T5322] fuse_writepages+0x2ad/0x380 [ 69.681208][ T5322] ? __pfx_fuse_writepages+0x10/0x10 [ 69.681223][ T5322] ? lockdep_unlock+0x89/0x120 [ 69.681242][ T5322] ? is_bpf_text_address+0x26/0x2b0 [ 69.681256][ T5322] ? __pfx_fuse_writepages+0x10/0x10 [ 69.681270][ T5322] do_writepages+0x32b/0x550 [ 69.681283][ T5322] ? do_raw_spin_lock+0x121/0x290 [ 69.681299][ T5322] __writeback_single_inode+0x145/0xff0 [ 69.681314][ T5322] ? do_raw_spin_unlock+0x4d/0x240 [ 69.681326][ T5322] writeback_single_inode+0x1f9/0x6a0 [ 69.681337][ T5322] write_inode_now+0x160/0x1d0 [ 69.681346][ T5322] ? __pfx_write_inode_now+0x10/0x10 [ 69.681368][ T5322] fuse_flush+0x266/0x800 [ 69.681381][ T5322] ? __pfx_locks_remove_posix+0x10/0x10 [ 69.681393][ T5322] ? __pfx_fuse_flush+0x10/0x10 [ 69.681413][ T5322] ? __pfx_fuse_flush+0x10/0x10 [ 69.681425][ T5322] filp_flush+0xba/0x190 [ 69.681436][ T5322] filp_close+0x1d/0x40 [ 69.681445][ T5322] __se_sys_close_range+0x359/0x650 [ 69.681460][ T5322] ? __pfx___se_sys_close_range+0x10/0x10 [ 69.681474][ T5322] ? do_syscall_64+0xbe/0xfa0 [ 69.681487][ T5322] do_syscall_64+0xfa/0xfa0 [ 69.681500][ T5322] ? lockdep_hardirqs_on+0x9c/0x150 [ 69.681511][ T5322] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.681522][ T5322] ? clear_bhb_loop+0x60/0xb0 [ 69.681534][ T5322] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 69.681544][ T5322] RIP: 0033:0x7f029ed8eec9 [ 69.681556][ T5322] 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 [ 69.681565][ T5322] RSP: 002b:00007f029fcd0038 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 69.681578][ T5322] RAX: ffffffffffffffda RBX: 00007f029efe6090 RCX: 00007f029ed8eec9 [ 69.681586][ T5322] RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000003 [ 69.681593][ T5322] RBP: 00007f029ee11f91 R08: 0000000000000000 R09: 0000000000000000 [ 69.681600][ T5322] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 69.681607][ T5322] R13: 00007f029efe6128 R14: 00007f029efe6090 R15: 00007fffd5084af8 [ 69.681618][ T5322]