program: write$FUSE_NOTIFY_INVAL_ENTRY(0xffffffffffffffff, 0x0, 0x0) ioctl$SNDRV_TIMER_IOCTL_SELECT(0xffffffffffffffff, 0x40345410, &(0x7f00000083c0)={{0x1}}) connect$pppl2tp(0xffffffffffffffff, 0x0, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000080)=0x8) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) recvmmsg(r1, &(0x7f00000000c0), 0x10106, 0x2, 0x0) r3 = openat(0xffffffffffffff9c, &(0x7f000000c380)='./file0\x00', 0x8040, 0x1) r4 = openat$fuse(0xffffffffffffff9c, &(0x7f00000000c0), 0x42, 0x0) mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', &(0x7f0000000100), 0x0, &(0x7f0000002140)=ANY=[@ANYBLOB='fd=', @ANYRESHEX=r4, @ANYBLOB=',rootmode=00000000000000000100000,user_id=', @ANYRESDEC=0x0, @ANYBLOB=',group_id=', @ANYRESDEC=0x0]) read$FUSE(r4, &(0x7f00000021c0)={0x2020, 0x0, 0x0, 0x0, 0x0}, 0x2020) write$FUSE_INIT(r4, &(0x7f0000000040)={0x50, 0x0, r5, {0x7, 0x1f, 0x0, 0x10400}}, 0x50) syz_fuse_handle_req(r4, &(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(r4, &(0x7f0000004200)="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317b081ed9d8148c41e77e6bda6287762532b86eb91f5480915680deb8a91fb8656b7f0109064865d2b846af0861f67d3f720d6e306540cd7b68f095ef3690b88ea93fb6a402ff5697597cda83171f159e85307d1a8c01611189bd4eb4f0453ab88d43ae181a562a76902a67c687514079d6f4304d9a7c0fa24b6e86074ea0a9fd8187c120312078f5ebfa674adc0303734bf8f6b5585943706594192ad24c9f7d9794fb83758924f862855ddd50bff58b522c43d73c03289baec628cd693cab93101b1e473b76532510e10f03e86812fea6f2d6f5467dcf29e6d7cf8524f383a0ded3f0951c3ffb171a6b8a6d97b5fa8899a19f1a3d0e934a1d4741076e4394ba225158f697bf7d5651717c6950229a0be22e8120d76a414edbcd03d505264b7ede8272ccbd6dbdcebaf11daf6a652f6f9eb74ba7a3ecc942892891388005ae5d971e4e79d696564906dffd44845b704a9abc2fa5ba1bb69a548423a08044ad6d0e365db7e6bea0f3844a452759716cb98dcf326001ec90c1c343174098cdf47ea2e13341058ca014d2a30e9ba3c526de72a6e387181bf76a278c9cbc518d8c374a3f1d9802a39464a100903dbec16f8f095f5d82d9d09507281e4f7fe0ce4fbeced193902a5f658af2a4c1d0952dabdc6ae5830b6b5a2c3f5b8d33a73665990822e5f4a7ce5366755a1615543bdf78299c71e890e0bedb6ec277b10a389d6a3ba9c037221421279e51ab50fb115de2076cc99444202e88ebd9d0fbe4e60234b7b761495ac6c9e615ddac8176164a88fb6d6cc2b52672c8949afe3efc1e87a598896bc93e421423844fcaafe65af898a015b3bcaf623ebeef9a57155af5278ceb52b995f7ca466d9e18b05e86380679e0257cff6d0c6750078462f2ee4701d6d8289ed848b877cf5918625b7937060d667c11119881c30809056892352c6c53c01e395af6866ea350e6f21fa3db772c1177c759999973b51e11ffc5908", 0x2000, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, &(0x7f0000000540)={0x78, 0x0, 0x800000000000002, {0x0, 0x0, 0x0, {0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200000, 0x8000, 0x0, 0x0, r6}}}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) fcntl$dupfd(r3, 0x406, 0xffffffffffffffff) r7 = openat(0xffffffffffffff9c, &(0x7f0000000180)='./file0\x00', 0x101001, 0x0) writev(r7, &(0x7f0000000000)=[{&(0x7f0000000cc0)="e1", 0x56000}], 0x1) close(r4) [ 75.064497][ T4680] Bluetooth: hci0: command tx timeout [ 75.590032][ T5341] [ 75.591204][ T5341] ===================================================== [ 75.594140][ T5341] WARNING: HARDIRQ-safe -> HARDIRQ-unsafe lock order detected [ 75.597244][ T5341] syzkaller #0 Not tainted [ 75.599248][ T5341] ----------------------------------------------------- [ 75.601874][ T5341] syz.0.0/5341 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire: [ 75.604518][ T5341] ffffffff995bb110 (&p->sequence){+.-.}-{0:0}, at: __fprop_add_percpu_max+0x10d/0x210 [ 75.608002][ T5341] [ 75.608002][ T5341] and this task is already holding: [ 75.610519][ T5341] ffff888051510240 (&xa->xa_lock#12){-...}-{3:3}, at: __folio_end_writeback+0x1da/0x950 [ 75.614096][ T5341] which would create a new lock dependency: [ 75.616565][ T5341] (&xa->xa_lock#12){-...}-{3:3} -> (&p->sequence){+.-.}-{0:0} [ 75.619847][ T5341] [ 75.619847][ T5341] but this new dependency connects a HARDIRQ-irq-safe lock: [ 75.623840][ T5341] (&xa->xa_lock#12){-...}-{3:3} [ 75.623866][ T5341] [ 75.623866][ T5341] ... which became HARDIRQ-irq-safe at: [ 75.629220][ T5341] lock_acquire+0x120/0x360 [ 75.631049][ T5341] _raw_spin_lock_irqsave+0xa7/0xf0 [ 75.633167][ T5341] __folio_end_writeback+0x1da/0x950 [ 75.635462][ T5341] folio_end_writeback_no_dropbehind+0x151/0x290 [ 75.638328][ T5341] folio_end_writeback+0xea/0x220 [ 75.640661][ T5341] end_bio_bh_io_sync+0xbd/0x120 [ 75.642959][ T5341] blk_update_request+0x57e/0xe60 [ 75.645164][ T5341] scsi_end_request+0x7c/0x830 [ 75.647234][ T5341] scsi_io_completion+0x131/0x390 [ 75.649355][ T5341] ata_qc_complete_multiple+0x1ae/0x280 [ 75.651412][ T5341] ahci_handle_port_interrupt+0x3d5/0x610 [ 75.653533][ T5341] ahci_handle_port_intr+0x19f/0x2e0 [ 75.655546][ T5341] ahci_single_level_irq_intr+0x9b/0xe0 [ 75.657536][ T5341] __handle_irq_event_percpu+0x295/0xab0 [ 75.659728][ T5341] handle_irq_event+0x8b/0x1e0 [ 75.661615][ T5341] handle_edge_irq+0x23b/0xa10 [ 75.663486][ T5341] __common_interrupt+0x141/0x1f0 [ 75.665536][ T5341] common_interrupt+0xb6/0xe0 [ 75.667375][ T5341] asm_common_interrupt+0x26/0x40 [ 75.669263][ T5341] _raw_spin_unlock_irqrestore+0xa8/0x110 [ 75.671633][ T5341] ata_scsi_queuecmd+0x3f0/0x5c0 [ 75.673767][ T5341] scsi_queue_rq+0x1c91/0x2cc0 [ 75.675911][ T5341] blk_mq_dispatch_rq_list+0x4c0/0x1900 [ 75.678381][ T5341] __blk_mq_sched_dispatch_requests+0xda4/0x1570 [ 75.682542][ T5341] blk_mq_sched_dispatch_requests+0xd7/0x190 [ 75.685123][ T5341] blk_mq_run_work_fn+0x22e/0x300 [ 75.687250][ T5341] process_scheduled_works+0xade/0x17b0 [ 75.689801][ T5341] worker_thread+0x8a0/0xda0 [ 75.691941][ T5341] kthread+0x70e/0x8a0 [ 75.693847][ T5341] ret_from_fork+0x439/0x7d0 [ 75.696045][ T5341] ret_from_fork_asm+0x1a/0x30 [ 75.698215][ T5341] [ 75.698215][ T5341] to a HARDIRQ-irq-unsafe lock: [ 75.701252][ T5341] (&p->sequence){+.-.}-{0:0} [ 75.701275][ T5341] [ 75.701275][ T5341] ... which became HARDIRQ-irq-unsafe at: [ 75.706805][ T5341] ... [ 75.706812][ T5341] lock_acquire+0x120/0x360 [ 75.710019][ T5341] fprop_new_period+0x1a3/0x3a0 [ 75.712171][ T5341] writeout_period+0x8b/0x130 [ 75.714325][ T5341] call_timer_fn+0x17b/0x5f0 [ 75.716414][ T5341] __run_timer_base+0x61a/0x860 [ 75.718629][ T5341] run_timer_softirq+0x103/0x180 [ 75.720638][ T5341] handle_softirqs+0x283/0x870 [ 75.722297][ T5341] __irq_exit_rcu+0xca/0x1f0 [ 75.724359][ T5341] irq_exit_rcu+0x9/0x30 [ 75.726406][ T5341] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 75.729018][ T5341] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 75.731731][ T5341] pv_native_safe_halt+0x13/0x20 [ 75.734013][ T5341] default_idle+0x13/0x20 [ 75.736048][ T5341] default_idle_call+0x73/0xb0 [ 75.738186][ T5341] do_idle+0x1e7/0x510 [ 75.740069][ T5341] cpu_startup_entry+0x44/0x60 [ 75.742513][ T5341] rest_init+0x2de/0x300 [ 75.744441][ T5341] start_kernel+0x3ae/0x410 [ 75.746484][ T5341] x86_64_start_reservations+0x24/0x30 [ 75.748943][ T5341] x86_64_start_kernel+0x143/0x1c0 [ 75.751433][ T5341] common_startup_64+0x13e/0x147 [ 75.753985][ T5341] [ 75.753985][ T5341] other info that might help us debug this: [ 75.753985][ T5341] [ 75.758780][ T5341] Possible interrupt unsafe locking scenario: [ 75.758780][ T5341] [ 75.763228][ T5341] CPU0 CPU1 [ 75.765867][ T5341] ---- ---- [ 75.768102][ T5341] lock(&p->sequence); [ 75.769838][ T5341] local_irq_disable(); [ 75.772734][ T5341] lock(&xa->xa_lock#12); [ 75.775719][ T5341] lock(&p->sequence); [ 75.778326][ T5341] [ 75.779882][ T5341] lock(&xa->xa_lock#12); [ 75.781862][ T5341] [ 75.781862][ T5341] *** DEADLOCK *** [ 75.781862][ T5341] [ 75.785515][ T5341] 5 locks held by syz.0.0/5341: [ 75.787756][ T5341] #0: ffff888000c04478 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x247/0x320 [ 75.791681][ T5341] #1: ffff888010f6c420 (sb_writers#12){.+.+}-{0:0}, at: vfs_writev+0x288/0x960 [ 75.795692][ T5341] #2: ffff888051510148 (&sb->s_type->i_mutex_key#20){+.+.}-{4:4}, at: fuse_fsync+0x111/0x310 [ 75.800363][ T5341] #3: ffff888051510638 (&fi->lock){+.+.}-{3:3}, at: fuse_iomap_writeback_range+0x818/0x1800 [ 75.804607][ T5341] #4: ffff888051510240 (&xa->xa_lock#12){-...}-{3:3}, at: __folio_end_writeback+0x1da/0x950 [ 75.809144][ T5341] [ 75.809144][ T5341] the dependencies between HARDIRQ-irq-safe lock and the holding lock: [ 75.813046][ T5341] -> (&xa->xa_lock#12){-...}-{3:3} { [ 75.815008][ T5341] IN-HARDIRQ-W at: [ 75.816788][ T5341] lock_acquire+0x120/0x360 [ 75.819367][ T5341] _raw_spin_lock_irqsave+0xa7/0xf0 [ 75.822196][ T5341] __folio_end_writeback+0x1da/0x950 [ 75.824952][ T5341] folio_end_writeback_no_dropbehind+0x151/0x290 [ 75.829795][ T5341] folio_end_writeback+0xea/0x220 [ 75.832293][ T5341] end_bio_bh_io_sync+0xbd/0x120 [ 75.834807][ T5341] blk_update_request+0x57e/0xe60 [ 75.837373][ T5341] scsi_end_request+0x7c/0x830 [ 75.840038][ T5341] scsi_io_completion+0x131/0x390 [ 75.842693][ T5341] ata_qc_complete_multiple+0x1ae/0x280 [ 75.845794][ T5341] ahci_handle_port_interrupt+0x3d5/0x610 [ 75.848920][ T5341] ahci_handle_port_intr+0x19f/0x2e0 [ 75.851878][ T5341] ahci_single_level_irq_intr+0x9b/0xe0 [ 75.854931][ T5341] __handle_irq_event_percpu+0x295/0xab0 [ 75.858332][ T5341] handle_irq_event+0x8b/0x1e0 [ 75.861282][ T5341] handle_edge_irq+0x23b/0xa10 [ 75.864187][ T5341] __common_interrupt+0x141/0x1f0 [ 75.867252][ T5341] common_interrupt+0xb6/0xe0 [ 75.869782][ T5341] asm_common_interrupt+0x26/0x40 [ 75.872575][ T5341] _raw_spin_unlock_irqrestore+0xa8/0x110 [ 75.875420][ T5341] ata_scsi_queuecmd+0x3f0/0x5c0 [ 75.878445][ T5341] scsi_queue_rq+0x1c91/0x2cc0 [ 75.881302][ T5341] blk_mq_dispatch_rq_list+0x4c0/0x1900 [ 75.884314][ T5341] __blk_mq_sched_dispatch_requests+0xda4/0x1570 [ 75.887680][ T5341] blk_mq_sched_dispatch_requests+0xd7/0x190 [ 75.891052][ T5341] blk_mq_run_work_fn+0x22e/0x300 [ 75.893968][ T5341] process_scheduled_works+0xade/0x17b0 [ 75.897114][ T5341] worker_thread+0x8a0/0xda0 [ 75.899910][ T5341] kthread+0x70e/0x8a0 [ 75.902414][ T5341] ret_from_fork+0x439/0x7d0 [ 75.905158][ T5341] ret_from_fork_asm+0x1a/0x30 [ 75.908218][ T5341] INITIAL USE at: [ 75.909850][ T5341] lock_acquire+0x120/0x360 [ 75.912358][ T5341] _raw_spin_lock_irq+0xa2/0xf0 [ 75.914878][ T5341] shmem_add_to_page_cache+0x72d/0xba0 [ 75.917629][ T5341] shmem_alloc_and_add_folio+0x846/0xf60 [ 75.920497][ T5341] shmem_get_folio_gfp+0x59d/0x1660 [ 75.923222][ T5341] shmem_read_folio_gfp+0x8a/0xe0 [ 75.926150][ T5341] drm_gem_get_pages+0x223/0xa20 [ 75.929012][ T5341] drm_gem_shmem_get_pages_locked+0x201/0x440 [ 75.932259][ T5341] drm_gem_shmem_pin_locked+0x22c/0x460 [ 75.935260][ T5341] drm_gem_shmem_vmap_locked+0x46b/0x790 [ 75.938313][ T5341] drm_gem_vmap+0x10a/0x1d0 [ 75.940839][ T5341] drm_client_buffer_vmap+0x43/0x80 [ 75.943767][ T5341] drm_fbdev_shmem_driver_fbdev_probe+0x258/0x900 [ 75.946755][ T5341] __drm_fb_helper_initial_config_and_unlock+0x1236/0x18a0 [ 75.950256][ T5341] drm_fbdev_client_hotplug+0x16c/0x230 [ 75.953085][ T5341] drm_client_register+0x172/0x210 [ 75.955817][ T5341] drm_fbdev_client_setup+0x19f/0x3f0 [ 75.958858][ T5341] drm_client_setup+0x107/0x220 [ 75.961561][ T5341] vkms_init+0x3e0/0x4b0 [ 75.964025][ T5341] do_one_initcall+0x233/0x820 [ 75.966580][ T5341] do_initcall_level+0x104/0x190 [ 75.969341][ T5341] do_initcalls+0x59/0xa0 [ 75.971871][ T5341] kernel_init_freeable+0x334/0x4b0 [ 75.974731][ T5341] kernel_init+0x1d/0x1d0 [ 75.977231][ T5341] ret_from_fork+0x439/0x7d0 [ 75.979846][ T5341] ret_from_fork_asm+0x1a/0x30 [ 75.982500][ T5341] } [ 75.983591][ T5341] ... key at: [] xa_init_flags.__key+0x0/0x20 [ 75.986977][ T5341] [ 75.986977][ T5341] the dependencies between the lock to be acquired [ 75.986984][ T5341] and HARDIRQ-irq-unsafe lock: [ 75.992805][ T5341] -> (&p->sequence){+.-.}-{0:0} { [ 75.995060][ T5341] HARDIRQ-ON-W at: [ 75.996745][ T5341] lock_acquire+0x120/0x360 [ 75.999232][ T5341] fprop_new_period+0x1a3/0x3a0 [ 76.002091][ T5341] writeout_period+0x8b/0x130 [ 76.004884][ T5341] call_timer_fn+0x17b/0x5f0 [ 76.007640][ T5341] __run_timer_base+0x61a/0x860 [ 76.010400][ T5341] run_timer_softirq+0x103/0x180 [ 76.013329][ T5341] handle_softirqs+0x283/0x870 [ 76.016292][ T5341] __irq_exit_rcu+0xca/0x1f0 [ 76.018912][ T5341] irq_exit_rcu+0x9/0x30 [ 76.021898][ T5341] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 76.025964][ T5341] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 76.030163][ T5341] pv_native_safe_halt+0x13/0x20 [ 76.033939][ T5341] default_idle+0x13/0x20 [ 76.037004][ T5341] default_idle_call+0x73/0xb0 [ 76.039669][ T5341] do_idle+0x1e7/0x510 [ 76.042156][ T5341] cpu_startup_entry+0x44/0x60 [ 76.044792][ T5341] rest_init+0x2de/0x300 [ 76.047124][ T5341] start_kernel+0x3ae/0x410 [ 76.049666][ T5341] x86_64_start_reservations+0x24/0x30 [ 76.052713][ T5341] x86_64_start_kernel+0x143/0x1c0 [ 76.055670][ T5341] common_startup_64+0x13e/0x147 [ 76.058582][ T5341] IN-SOFTIRQ-W at: [ 76.060496][ T5341] lock_acquire+0x120/0x360 [ 76.063136][ T5341] fprop_new_period+0x1a3/0x3a0 [ 76.065984][ T5341] writeout_period+0x8b/0x130 [ 76.068770][ T5341] call_timer_fn+0x17b/0x5f0 [ 76.071266][ T5341] __run_timer_base+0x61a/0x860 [ 76.074159][ T5341] run_timer_softirq+0x103/0x180 [ 76.077018][ T5341] handle_softirqs+0x283/0x870 [ 76.079842][ T5341] __irq_exit_rcu+0xca/0x1f0 [ 76.082823][ T5341] irq_exit_rcu+0x9/0x30 [ 76.085189][ T5341] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 76.087995][ T5341] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 76.091303][ T5341] pv_native_safe_halt+0x13/0x20 [ 76.094219][ T5341] default_idle+0x13/0x20 [ 76.096859][ T5341] default_idle_call+0x73/0xb0 [ 76.099584][ T5341] do_idle+0x1e7/0x510 [ 76.102057][ T5341] cpu_startup_entry+0x44/0x60 [ 76.104736][ T5341] rest_init+0x2de/0x300 [ 76.107322][ T5341] start_kernel+0x3ae/0x410 [ 76.110527][ T5341] x86_64_start_reservations+0x24/0x30 [ 76.113515][ T5341] x86_64_start_kernel+0x143/0x1c0 [ 76.116206][ T5341] common_startup_64+0x13e/0x147 [ 76.119035][ T5341] INITIAL USE at: [ 76.120650][ T5341] lock_acquire+0x120/0x360 [ 76.123236][ T5341] fprop_new_period+0x1a3/0x3a0 [ 76.126022][ T5341] writeout_period+0x8b/0x130 [ 76.128591][ T5341] call_timer_fn+0x17b/0x5f0 [ 76.131145][ T5341] __run_timer_base+0x61a/0x860 [ 76.134005][ T5341] run_timer_softirq+0x103/0x180 [ 76.136789][ T5341] handle_softirqs+0x283/0x870 [ 76.139571][ T5341] __irq_exit_rcu+0xca/0x1f0 [ 76.142214][ T5341] irq_exit_rcu+0x9/0x30 [ 76.144701][ T5341] sysvec_apic_timer_interrupt+0xa6/0xc0 [ 76.148207][ T5341] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 76.151364][ T5341] pv_native_safe_halt+0x13/0x20 [ 76.154020][ T5341] default_idle+0x13/0x20 [ 76.156329][ T5341] default_idle_call+0x73/0xb0 [ 76.158869][ T5341] do_idle+0x1e7/0x510 [ 76.161177][ T5341] cpu_startup_entry+0x44/0x60 [ 76.163897][ T5341] rest_init+0x2de/0x300 [ 76.166529][ T5341] start_kernel+0x3ae/0x410 [ 76.169293][ T5341] x86_64_start_reservations+0x24/0x30 [ 76.172446][ T5341] x86_64_start_kernel+0x143/0x1c0 [ 76.175257][ T5341] common_startup_64+0x13e/0x147 [ 76.178049][ T5341] INITIAL READ USE at: [ 76.179960][ T5341] lock_acquire+0x120/0x360 [ 76.182771][ T5341] fprop_fraction_percpu+0x170/0x400 [ 76.185938][ T5341] __wb_calc_thresh+0x119/0x4a0 [ 76.189030][ T5341] wb_over_bg_thresh+0x154/0x3d0 [ 76.192053][ T5341] wb_workfn+0xb1c/0xef0 [ 76.194485][ T5341] process_scheduled_works+0xade/0x17b0 [ 76.197426][ T5341] worker_thread+0x8a0/0xda0 [ 76.200062][ T5341] kthread+0x70e/0x8a0 [ 76.202697][ T5341] ret_from_fork+0x439/0x7d0 [ 76.205458][ T5341] ret_from_fork_asm+0x1a/0x30 [ 76.208286][ T5341] } [ 76.209336][ T5341] ... key at: [] fprop_global_init.__key.1+0x0/0x20 [ 76.213381][ T5341] ... acquired at: [ 76.215681][ T5341] lock_acquire+0x120/0x360 [ 76.218444][ T5341] fprop_fraction_percpu+0x130/0x400 [ 76.221256][ T5341] __fprop_add_percpu_max+0x10d/0x210 [ 76.223614][ T5341] __wb_writeout_add+0xa5/0x290 [ 76.225736][ T5341] __folio_end_writeback+0x4d5/0x950 [ 76.228115][ T5341] folio_end_writeback_no_dropbehind+0x151/0x290 [ 76.230689][ T5341] folio_end_writeback+0xea/0x220 [ 76.232928][ T5341] fuse_flush_writepages+0x6c8/0x900 [ 76.235355][ T5341] fuse_iomap_writeback_range+0x923/0x1800 [ 76.238518][ T5341] iomap_writeback_folio+0xe72/0x1c80 [ 76.241610][ T5341] iomap_writepages+0x162/0x2d0 [ 76.244414][ T5341] fuse_writepages+0x2ad/0x380 [ 76.247244][ T5341] do_writepages+0x32e/0x550 [ 76.249630][ T5341] file_write_and_wait_range+0x23e/0x340 [ 76.252144][ T5341] fuse_fsync+0x124/0x310 [ 76.254236][ T5341] fuse_file_write_iter+0xece/0x10a0 [ 76.256568][ T5341] do_iter_readv_writev+0x623/0x8c0 [ 76.258859][ T5341] vfs_writev+0x31a/0x960 [ 76.260752][ T5341] do_writev+0x14d/0x2d0 [ 76.262738][ T5341] do_syscall_64+0xfa/0x3b0 [ 76.264660][ T5341] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.266959][ T5341] [ 76.267929][ T5341] [ 76.267929][ T5341] stack backtrace: [ 76.270118][ T5341] CPU: 0 UID: 0 PID: 5341 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 76.270128][ T5341] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 76.270133][ T5341] Call Trace: [ 76.270138][ T5341] [ 76.270142][ T5341] dump_stack_lvl+0x189/0x250 [ 76.270153][ T5341] ? __pfx_dump_stack_lvl+0x10/0x10 [ 76.270162][ T5341] ? __pfx__printk+0x10/0x10 [ 76.270173][ T5341] validate_chain+0x1f05/0x2140 [ 76.270186][ T5341] __lock_acquire+0xab9/0xd20 [ 76.270193][ T5341] ? __fprop_add_percpu_max+0x10d/0x210 [ 76.270204][ T5341] lock_acquire+0x120/0x360 [ 76.270211][ T5341] ? __fprop_add_percpu_max+0x10d/0x210 [ 76.270222][ T5341] ? __fprop_add_percpu_max+0x10d/0x210 [ 76.270231][ T5341] fprop_fraction_percpu+0x130/0x400 [ 76.270241][ T5341] ? __fprop_add_percpu_max+0x10d/0x210 [ 76.270250][ T5341] ? __pfx_fprop_fraction_percpu+0x10/0x10 [ 76.270262][ T5341] ? xas_load+0x593/0x5b0 [ 76.270273][ T5341] __fprop_add_percpu_max+0x10d/0x210 [ 76.270285][ T5341] ? percpu_counter_add_batch+0xea/0x1e0 [ 76.270297][ T5341] __wb_writeout_add+0xa5/0x290 [ 76.270307][ T5341] __folio_end_writeback+0x4d5/0x950 [ 76.270315][ T5341] ? __pfx___folio_end_writeback+0x10/0x10 [ 76.270320][ T5341] ? fuse_simple_background+0xdc4/0x1040 [ 76.270328][ T5341] ? kmem_cache_free+0x19b/0x690 [ 76.270336][ T5341] folio_end_writeback_no_dropbehind+0x151/0x290 [ 76.270348][ T5341] folio_end_writeback+0xea/0x220 [ 76.270360][ T5341] fuse_flush_writepages+0x6c8/0x900 [ 76.270372][ T5341] ? __pfx___folio_start_writeback+0x10/0x10 [ 76.270384][ T5341] fuse_iomap_writeback_range+0x923/0x1800 [ 76.270396][ T5341] iomap_writeback_folio+0xe72/0x1c80 [ 76.270412][ T5341] ? rcu_is_watching+0x15/0xb0 [ 76.270423][ T5341] iomap_writepages+0x162/0x2d0 [ 76.270431][ T5341] ? __pfx_iomap_writepages+0x10/0x10 [ 76.270440][ T5341] fuse_writepages+0x2ad/0x380 [ 76.270448][ T5341] ? __lock_acquire+0xab9/0xd20 [ 76.270455][ T5341] ? __pfx_fuse_writepages+0x10/0x10 [ 76.270469][ T5341] ? __lock_acquire+0xab9/0xd20 [ 76.270478][ T5341] ? __pfx_fuse_writepages+0x10/0x10 [ 76.270488][ T5341] do_writepages+0x32e/0x550 [ 76.270497][ T5341] ? do_raw_spin_unlock+0x4d/0x240 [ 76.270509][ T5341] file_write_and_wait_range+0x23e/0x340 [ 76.270519][ T5341] ? __pfx_file_write_and_wait_range+0x10/0x10 [ 76.270539][ T5341] ? down_write+0x162/0x1f0 [ 76.270550][ T5341] ? __pfx_down_write+0x10/0x10 [ 76.270561][ T5341] ? fuse_file_write_iter+0xcde/0x10a0 [ 76.270574][ T5341] fuse_fsync+0x124/0x310 [ 76.270587][ T5341] fuse_file_write_iter+0xece/0x10a0 [ 76.270601][ T5341] ? __pfx_fuse_file_write_iter+0x10/0x10 [ 76.270620][ T5341] do_iter_readv_writev+0x623/0x8c0 [ 76.270635][ T5341] ? __pfx_do_iter_readv_writev+0x10/0x10 [ 76.270647][ T5341] ? rcu_read_lock_any_held+0xb3/0x120 [ 76.270690][ T5341] vfs_writev+0x31a/0x960 [ 76.270708][ T5341] ? __lock_acquire+0xab9/0xd20 [ 76.270719][ T5341] ? __pfx_vfs_writev+0x10/0x10 [ 76.270747][ T5341] ? __fget_files+0x2a/0x420 [ 76.270761][ T5341] ? __fget_files+0x3a0/0x420 [ 76.270774][ T5341] ? __fget_files+0x2a/0x420 [ 76.270789][ T5341] do_writev+0x14d/0x2d0 [ 76.270804][ T5341] ? __pfx_do_writev+0x10/0x10 [ 76.270817][ T5341] ? rcu_is_watching+0x15/0xb0 [ 76.270829][ T5341] ? do_syscall_64+0xbe/0x3b0 [ 76.270840][ T5341] do_syscall_64+0xfa/0x3b0 [ 76.270852][ T5341] ? lockdep_hardirqs_on+0x9c/0x150 [ 76.270866][ T5341] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.270876][ T5341] ? clear_bhb_loop+0x60/0xb0 [ 76.270887][ T5341] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 76.270898][ T5341] RIP: 0033:0x7f99cd78eec9 [ 76.270909][ 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 [ 76.270921][ T5341] RSP: 002b:00007f99ce67e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 [ 76.270935][ T5341] RAX: ffffffffffffffda RBX: 00007f99cd9e6180 RCX: 00007f99cd78eec9 [ 76.270943][ T5341] RDX: 0000000000000001 RSI: 0000200000000000 RDI: 0000000000000007 [ 76.270949][ T5341] RBP: 00007f99cd811f91 R08: 0000000000000000 R09: 0000000000000000 [ 76.270953][ T5341] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 76.270957][ T5341] R13: 00007f99cd9e6218 R14: 00007f99cd9e6180 R15: 00007fff573f9068 [ 76.270965][ T5341] [ 76.468030][ T1312] ieee802154 phy0 wpan0: encryption failed: -22 [ 76.471735][ T1312] ieee802154 phy1 wpan1: encryption failed: -22