Warning: Permanently added '10.128.0.207' (ED25519) to the list of known hosts. executing program syzkaller login: [ 55.059520][ T4249] loop0: detected capacity change from 0 to 8 [ 55.098780][ T4249] SQUASHFS error: Failed to read block 0x106: -5 [ 60.057023][ T26] audit: type=1800 audit(1750566746.739:2): pid=4249 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=collect_data cause=failed comm="syz-executor142" name="file2" dev="loop0" ino=6 res=0 errno=0 [ 76.282277][ T41] cfg80211: failed to load regulatory.db [ 286.201721][ T27] INFO: task syz-executor142:4248 blocked for more than 143 seconds. [ 286.210144][ T27] Not tainted 6.1.141-syzkaller #0 [ 286.215828][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.224576][ T27] task:syz-executor142 state:D stack:24352 pid:4248 ppid:4247 flags:0x00004002 [ 286.233853][ T27] Call Trace: [ 286.237132][ T27] [ 286.240052][ T27] __schedule+0x10e9/0x40d0 [ 286.244680][ T27] ? release_firmware_map_entry+0x18a/0x18a [ 286.250629][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 286.256603][ T27] ? lock_chain_count+0x20/0x20 [ 286.261518][ T27] ? _raw_spin_lock_irq+0xab/0xe0 [ 286.266571][ T27] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 286.272009][ T27] schedule+0xb9/0x180 [ 286.276096][ T27] io_schedule+0x7c/0xd0 [ 286.280387][ T27] folio_wait_bit_common+0x6e1/0xf60 [ 286.285703][ T27] ? folio_wait_bit+0x30/0x30 [ 286.290461][ T27] ? migration_entry_wait_on_locked+0xe50/0xe50 [ 286.296721][ T27] ? folio_mapping+0x1ba/0x4d0 [ 286.301548][ T27] truncate_inode_pages_range+0x9a2/0xff0 [ 286.307289][ T27] ? mapping_evict_folio+0x520/0x520 [ 286.312631][ T27] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 286.318621][ T27] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.323860][ T27] ? lockdep_hardirqs_on+0x94/0x140 [ 286.329060][ T27] evict+0x498/0x870 [ 286.333031][ T27] ? proc_nr_inodes+0x2f0/0x2f0 [ 286.337898][ T27] ? do_raw_spin_unlock+0x11d/0x230 [ 286.343179][ T27] ? _raw_spin_unlock+0x24/0x40 [ 286.348059][ T27] ? do_raw_spin_unlock+0x11d/0x230 [ 286.353361][ T27] evict_inodes+0x604/0x690 [ 286.357882][ T27] ? clear_inode+0x150/0x150 [ 286.362512][ T27] ? dput+0x1c9/0x1d0 [ 286.366500][ T27] ? sync_filesystem+0x103/0x220 [ 286.371484][ T27] generic_shutdown_super+0x93/0x340 [ 286.376790][ T27] kill_block_super+0x7c/0xe0 [ 286.381513][ T27] deactivate_locked_super+0x93/0xf0 [ 286.386804][ T27] cleanup_mnt+0x463/0x4f0 [ 286.391259][ T27] ? lockdep_hardirqs_on+0x94/0x140 [ 286.396460][ T27] task_work_run+0x1ca/0x250 [ 286.401086][ T27] ? task_work_cancel+0x230/0x230 [ 286.406116][ T27] ? exit_to_user_mode_loop+0x3b/0x110 [ 286.411608][ T27] exit_to_user_mode_loop+0xe6/0x110 [ 286.416901][ T27] exit_to_user_mode_prepare+0xb1/0x140 [ 286.422490][ T27] syscall_exit_to_user_mode+0x16/0x40 [ 286.427948][ T27] do_syscall_64+0x58/0xa0 [ 286.432460][ T27] ? clear_bhb_loop+0x60/0xb0 [ 286.437144][ T27] ? clear_bhb_loop+0x60/0xb0 [ 286.441861][ T27] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 286.447765][ T27] RIP: 0033:0x7ffb7dc54447 [ 286.452357][ T27] RSP: 002b:00007ffc72982e48 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 286.460845][ T27] RAX: 0000000000000000 RBX: 0000000000000063 RCX: 00007ffb7dc54447 [ 286.468813][ T27] RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc72982f00 [ 286.476849][ T27] RBP: 00007ffc72982f00 R08: 0000000000000000 R09: 0000000000000000 [ 286.484919][ T27] R10: 00000000ffffffff R11: 0000000000000206 R12: 00007ffc72983f70 [ 286.492968][ T27] R13: 0000555573f806c0 R14: 0000000000000001 R15: 431bde82d7b634db [ 286.501000][ T27] [ 286.504023][ T27] [ 286.504023][ T27] Showing all locks held in the system: [ 286.511788][ T27] 1 lock held by rcu_tasks_kthre/12: [ 286.517070][ T27] #0: ffffffff8c92b430 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 [ 286.527545][ T27] 1 lock held by rcu_tasks_trace/13: [ 286.532858][ T27] #0: ffffffff8c92bc50 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 [ 286.543872][ T27] 1 lock held by khungtaskd/27: [ 286.548726][ T27] #0: ffffffff8c92aaa0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 [ 286.558631][ T27] 1 lock held by klogd/3613: [ 286.563257][ T27] #0: ffff8880b8e3aa98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x26/0x140 [ 286.573256][ T27] 2 locks held by getty/4012: [ 286.577939][ T27] #0: ffff88814d11f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 286.587721][ T27] #1: ffffc9000326b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41b/0x1380 [ 286.597868][ T27] 1 lock held by syz-executor142/4248: [ 286.603375][ T27] #0: ffff88807911a0e0 (&type->s_umount_key#42){+.+.}-{3:3}, at: deactivate_super+0xa0/0xd0 [ 286.613629][ T27] [ 286.615957][ T27] ============================================= [ 286.615957][ T27] [ 286.624442][ T27] NMI backtrace for cpu 1 [ 286.628783][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.141-syzkaller #0 [ 286.636660][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 286.646700][ T27] Call Trace: [ 286.649963][ T27] [ 286.652875][ T27] dump_stack_lvl+0x168/0x22e [ 286.657539][ T27] ? show_regs_print_info+0x12/0x12 [ 286.662736][ T27] ? load_image+0x3b0/0x3b0 [ 286.667236][ T27] ? vprintk_emit+0x571/0x680 [ 286.671900][ T27] ? printk_sprint+0x460/0x460 [ 286.676668][ T27] nmi_cpu_backtrace+0x3f4/0x470 [ 286.681611][ T27] ? nmi_trigger_cpumask_backtrace+0x450/0x450 [ 286.687756][ T27] ? _printk+0xcc/0x110 [ 286.691895][ T27] ? load_image+0x3b0/0x3b0 [ 286.696379][ T27] ? load_image+0x3b0/0x3b0 [ 286.700862][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.706930][ T27] nmi_trigger_cpumask_backtrace+0x1d4/0x450 [ 286.712925][ T27] watchdog+0xeee/0xf30 [ 286.717072][ T27] ? watchdog+0x1ed/0xf30 [ 286.721392][ T27] kthread+0x29d/0x330 [ 286.725455][ T27] ? hungtask_pm_notify+0x40/0x40 [ 286.730473][ T27] ? kthread_blkcg+0xd0/0xd0 [ 286.735056][ T27] ret_from_fork+0x1f/0x30 [ 286.739473][ T27] [ 286.742566][ T27] Sending NMI from CPU 1 to CPUs 0: [ 286.747796][ C0] NMI backtrace for cpu 0 [ 286.747805][ C0] CPU: 0 PID: 2955 Comm: kworker/u4:5 Not tainted 6.1.141-syzkaller #0 [ 286.747819][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 286.747827][ C0] Workqueue: events_unbound toggle_allocation_gate [ 286.747847][ C0] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x13/0x80 [ 286.747864][ C0] Code: 11 08 03 00 00 00 48 89 7c 11 10 48 89 74 11 18 48 89 44 11 20 c3 90 48 8b 04 24 65 48 8b 15 64 95 81 7e 65 8b 0d 65 95 81 7e <81> e1 00 01 ff 00 74 11 81 f9 00 01 00 00 75 5b 83 ba 1c 16 00 00 [ 286.747888][ C0] RSP: 0018:ffffc9000d4976b0 EFLAGS: 00000246 [ 286.747899][ C0] RAX: ffffffff8a03ad02 RBX: ffffc9000d4979c0 RCX: 0000000080000000 [ 286.747910][ C0] RDX: ffff88802f8f1dc0 RSI: 0000000000000000 RDI: 0000000000000000 [ 286.747919][ C0] RBP: 0000000000004000 R08: dffffc0000000000 R09: ffffc9000d497960 [ 286.747928][ C0] R10: fffff52001a92f37 R11: 1ffff92001a92f2c R12: 1ffff92001a92f35 [ 286.747938][ C0] R13: dffffc0000000000 R14: ffffc9000d4979ac R15: ffffc9000d4979ac [ 286.747948][ C0] FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 286.747959][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.747968][ C0] CR2: 00005620d0379660 CR3: 000000000c68e000 CR4: 00000000003506f0 [ 286.747980][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 286.747988][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 286.747997][ C0] Call Trace: [ 286.748001][ C0] [ 286.748005][ C0] insn_get_opcode+0x722/0xa30 [ 286.748030][ C0] insn_get_modrm+0x229/0x7a0 [ 286.748046][ C0] ? insn_get_modrm+0x4be/0x7a0 [ 286.748064][ C0] insn_get_displacement+0x156/0xa20 [ 286.748082][ C0] insn_get_immediate+0x325/0x1290 [ 286.748098][ C0] ? insn_get_immediate+0xad2/0x1290 [ 286.748116][ C0] insn_decode+0x386/0x520 [ 286.748133][ C0] text_poke_loc_init+0xd6/0x570 [ 286.748150][ C0] ? __kmem_cache_alloc_node+0x5f/0x260 [ 286.748166][ C0] ? text_poke_finish+0x30/0x30 [ 286.748179][ C0] ? __mutex_unlock_slowpath+0x19e/0x6a0 [ 286.748200][ C0] ? static_key_disable_cpuslocked+0x89/0x1a0 [ 286.748214][ C0] ? mutex_lock_nested+0x10/0x10 [ 286.748230][ C0] arch_jump_label_transform_queue+0x6a/0xd0 [ 286.748245][ C0] __jump_label_update+0x17d/0x390 [ 286.748262][ C0] static_key_disable_cpuslocked+0xc1/0x1a0 [ 286.748277][ C0] static_key_disable+0x16/0x20 [ 286.748290][ C0] toggle_allocation_gate+0x38f/0x430 [ 286.748305][ C0] ? show_object+0xa0/0xa0 [ 286.748319][ C0] ? lockdep_hardirqs_on_prepare+0x3fc/0x760 [ 286.748336][ C0] ? read_lock_is_recursive+0x10/0x10 [ 286.748351][ C0] ? _raw_spin_unlock_irqrestore+0xaa/0x100 [ 286.748367][ C0] ? _raw_spin_unlock+0x40/0x40 [ 286.748383][ C0] ? _raw_spin_unlock_irq+0x1f/0x40 [ 286.748400][ C0] ? process_one_work+0x7a1/0x1160 [ 286.748414][ C0] process_one_work+0x898/0x1160 [ 286.748433][ C0] ? worker_detach_from_pool+0x240/0x240 [ 286.748448][ C0] ? _raw_spin_lock_irq+0xab/0xe0 [ 286.748472][ C0] ? _raw_spin_lock_irqsave+0xf0/0xf0 [ 286.748487][ C0] ? kthread_data+0x4b/0xc0 [ 286.748504][ C0] worker_thread+0xaa2/0x1250 [ 286.748525][ C0] ? __kthread_parkme+0x162/0x1c0 [ 286.748543][ C0] kthread+0x29d/0x330 [ 286.748557][ C0] ? worker_clr_flags+0x1a0/0x1a0 [ 286.748570][ C0] ? kthread_blkcg+0xd0/0xd0 [ 286.748587][ C0] ret_from_fork+0x1f/0x30 [ 286.748609][ C0] [ 286.748798][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 287.088154][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.141-syzkaller #0 [ 287.096034][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 287.106076][ T27] Call Trace: [ 287.109344][ T27] [ 287.112263][ T27] dump_stack_lvl+0x168/0x22e [ 287.116935][ T27] ? memcpy+0x3c/0x60 [ 287.120903][ T27] ? show_regs_print_info+0x12/0x12 [ 287.126091][ T27] ? load_image+0x3b0/0x3b0 [ 287.130585][ T27] panic+0x2c9/0x710 [ 287.134464][ T27] ? asm_sysvec_call_function_single+0x16/0x20 [ 287.140606][ T27] ? bpf_jit_dump+0xd0/0xd0 [ 287.145096][ T27] ? irq_work_queue+0xbf/0x140 [ 287.149851][ T27] ? nmi_trigger_cpumask_backtrace+0x2ed/0x450 [ 287.155994][ T27] watchdog+0xf2d/0xf30 [ 287.160139][ T27] ? watchdog+0x1ed/0xf30 [ 287.164458][ T27] kthread+0x29d/0x330 [ 287.168518][ T27] ? hungtask_pm_notify+0x40/0x40 [ 287.173624][ T27] ? kthread_blkcg+0xd0/0xd0 [ 287.178206][ T27] ret_from_fork+0x1f/0x30 [ 287.182619][ T27] [ 287.185859][ T27] Kernel Offset: disabled [ 287.190170][ T27] Rebooting in 86400 seconds..